/* Prototype JavaScript framework, version 1.6.0.3
 * (c) 2005-2008 Sam Stephenson
 *
 * Prototype is freely distributable under the terms of an MIT-style license.
 * For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
 Version: '1.6.0.3',

 Browser: {
 IE: !!(window.attachEvent &&
 navigator.userAgent.indexOf('Opera') === -1),
 Opera: navigator.userAgent.indexOf('Opera') > -1,
 WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
 Gecko: navigator.userAgent.indexOf('Gecko') > -1 &&
 navigator.userAgent.indexOf('KHTML') === -1,
 MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
 },

 BrowserFeatures: {
 XPath: !!document.evaluate,
 SelectorsAPI: !!document.querySelector,
 ElementExtensions: !!window.HTMLElement,
 SpecificElementExtensions:
 document.createElement('div')['__proto__'] &&
 document.createElement('div')['__proto__'] !==
 document.createElement('form')['__proto__']
 },

 ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
 JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

 emptyFunction: function() { },
 K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
 Prototype.BrowserFeatures.SpecificElementExtensions = false;


/* Based on Alex Arnell's inheritance implementation. */
var Class = {
 create: function() {
 var parent = null, properties = $A(arguments);
 if (Object.isFunction(properties[0]))
 parent = properties.shift();

 function klass() {
 this.initialize.apply(this, arguments);
 }

 Object.extend(klass, Class.Methods);
 klass.superclass = parent;
 klass.subclasses = [];

 if (parent) {
 var subclass = function() { };
 subclass.prototype = parent.prototype;
 klass.prototype = new subclass;
 parent.subclasses.push(klass);
 }

 for (var i = 0; i < properties.length; i++)
 klass.addMethods(properties[i]);

 if (!klass.prototype.initialize)
 klass.prototype.initialize = Prototype.emptyFunction;

 klass.prototype.constructor = klass;

 return klass;
 }
};

Class.Methods = {
 addMethods: function(source) {
 var ancestor = this.superclass && this.superclass.prototype;
 var properties = Object.keys(source);

 if (!Object.keys({ toString: true }).length)
 properties.push("toString", "valueOf");

 for (var i = 0, length = properties.length; i < length; i++) {
 var property = properties[i], value = source[property];
 if (ancestor && Object.isFunction(value) &&
 value.argumentNames().first() == "$super") {
 var method = value;
 value = (function(m) {
 return function() { return ancestor[m].apply(this, arguments) };
 })(property).wrap(method);

 value.valueOf = method.valueOf.bind(method);
 value.toString = method.toString.bind(method);
 }
 this.prototype[property] = value;
 }

 return this;
 }
};

var Abstract = { };

Object.extend = function(destination, source) {
 for (var property in source)
 destination[property] = source[property];
 return destination;
};

Object.extend(Object, {
 inspect: function(object) {
 try {
 if (Object.isUndefined(object)) return 'undefined';
 if (object === null) return 'null';
 return object.inspect ? object.inspect() : String(object);
 } catch (e) {
 if (e instanceof RangeError) return '...';
 throw e;
 }
 },

 toJSON: function(object) {
 var type = typeof object;
 switch (type) {
 case 'undefined':
 case 'function':
 case 'unknown': return;
 case 'boolean': return object.toString();
 }

 if (object === null) return 'null';
 if (object.toJSON) return object.toJSON();
 if (Object.isElement(object)) return;

 var results = [];
 for (var property in object) {
 var value = Object.toJSON(object[property]);
 if (!Object.isUndefined(value))
 results.push(property.toJSON() + ': ' + value);
 }

 return '{' + results.join(', ') + '}';
 },

 toQueryString: function(object) {
 return $H(object).toQueryString();
 },

 toHTML: function(object) {
 return object && object.toHTML ? object.toHTML() : String.interpret(object);
 },

 keys: function(object) {
 var keys = [];
 for (var property in object)
 keys.push(property);
 return keys;
 },

 values: function(object) {
 var values = [];
 for (var property in object)
 values.push(object[property]);
 return values;
 },

 clone: function(object) {
 return Object.extend({ }, object);
 },

 isElement: function(object) {
 return !!(object && object.nodeType == 1);
 },

 isArray: function(object) {
 return object != null && typeof object == "object" &&
 'splice' in object && 'join' in object;
 },

 isHash: function(object) {
 return object instanceof Hash;
 },

 isFunction: function(object) {
 return typeof object == "function";
 },

 isString: function(object) {
 return typeof object == "string";
 },

 isNumber: function(object) {
 return typeof object == "number";
 },

 isUndefined: function(object) {
 return typeof object == "undefined";
 }
});

Object.extend(Function.prototype, {
 argumentNames: function() {
 var names = this.toString().match(/^[\s\(]*function[^(]*\(([^\)]*)\)/)[1]
 .replace(/\s+/g, '').split(',');
 return names.length == 1 && !names[0] ? [] : names;
 },

 bind: function() {
 if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
 var __method = this, args = $A(arguments), object = args.shift();
 return function() {
 return __method.apply(object, args.concat($A(arguments)));
 }
 },

 bindAsEventListener: function() {
 var __method = this, args = $A(arguments), object = args.shift();
 return function(event) {
 return __method.apply(object, [event || window.event].concat(args));
 }
 },

 curry: function() {
 if (!arguments.length) return this;
 var __method = this, args = $A(arguments);
 return function() {
 return __method.apply(this, args.concat($A(arguments)));
 }
 },

 delay: function() {
 var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
 return window.setTimeout(function() {
 return __method.apply(__method, args);
 }, timeout);
 },

 defer: function() {
 var args = [0.01].concat($A(arguments));
 return this.delay.apply(this, args);
 },

 wrap: function(wrapper) {
 var __method = this;
 return function() {
 return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
 }
 },

 methodize: function() {
 if (this._methodized) return this._methodized;
 var __method = this;
 return this._methodized = function() {
 return __method.apply(null, [this].concat($A(arguments)));
 };
 }
});

Date.prototype.toJSON = function() {
 return '"' + this.getUTCFullYear() + '-' +
 (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
 this.getUTCDate().toPaddedString(2) + 'T' +
 this.getUTCHours().toPaddedString(2) + ':' +
 this.getUTCMinutes().toPaddedString(2) + ':' +
 this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
 these: function() {
 var returnValue;

 for (var i = 0, length = arguments.length; i < length; i++) {
 var lambda = arguments[i];
 try {
 returnValue = lambda();
 break;
 } catch (e) { }
 }

 return returnValue;
 }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
 return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
 initialize: function(callback, frequency) {
 this.callback = callback;
 this.frequency = frequency;
 this.currentlyExecuting = false;

 this.registerCallback();
 },

 registerCallback: function() {
 this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
 },

 execute: function() {
 this.callback(this);
 },

 stop: function() {
 if (!this.timer) return;
 clearInterval(this.timer);
 this.timer = null;
 },

 onTimerEvent: function() {
 if (!this.currentlyExecuting) {
 try {
 this.currentlyExecuting = true;
 this.execute();
 } finally {
 this.currentlyExecuting = false;
 }
 }
 }
});
Object.extend(String, {
 interpret: function(value) {
 return value == null ? '' : String(value);
 },
 specialChar: {
 '\b': '\\b',
 '\t': '\\t',
 '\n': '\\n',
 '\f': '\\f',
 '\r': '\\r',
 '\\': '\\\\'
 }
});

Object.extend(String.prototype, {
 gsub: function(pattern, replacement) {
 var result = '', source = this, match;
 replacement = arguments.callee.prepareReplacement(replacement);

 while (source.length > 0) {
 if (match = source.match(pattern)) {
 result += source.slice(0, match.index);
 result += String.interpret(replacement(match));
 source = source.slice(match.index + match[0].length);
 } else {
 result += source, source = '';
 }
 }
 return result;
 },

 sub: function(pattern, replacement, count) {
 replacement = this.gsub.prepareReplacement(replacement);
 count = Object.isUndefined(count) ? 1 : count;

 return this.gsub(pattern, function(match) {
 if (--count < 0) return match[0];
 return replacement(match);
 });
 },

 scan: function(pattern, iterator) {
 this.gsub(pattern, iterator);
 return String(this);
 },

 truncate: function(length, truncation) {
 length = length || 30;
 truncation = Object.isUndefined(truncation) ? '...' : truncation;
 return this.length > length ?
 this.slice(0, length - truncation.length) + truncation : String(this);
 },

 strip: function() {
 return this.replace(/^\s+/, '').replace(/\s+$/, '');
 },

 stripTags: function() {
 return this.replace(/<\/?[^>]+>/gi, '');
 },

 stripScripts: function() {
 return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
 },

 extractScripts: function() {
 var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
 var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
 return (this.match(matchAll) || []).map(function(scriptTag) {
 return (scriptTag.match(matchOne) || ['', ''])[1];
 });
 },

 evalScripts: function() {
 return this.extractScripts().map(function(script) { return eval(script) });
 },

 escapeHTML: function() {
 var self = arguments.callee;
 self.text.data = this;
 return self.div.innerHTML;
 },

 unescapeHTML: function() {
 var div = new Element('div');
 div.innerHTML = this.stripTags();
 return div.childNodes[0] ? (div.childNodes.length > 1 ?
 $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
 div.childNodes[0].nodeValue) : '';
 },

 toQueryParams: function(separator) {
 var match = this.strip().match(/([^?#]*)(#.*)?$/);
 if (!match) return { };

 return match[1].split(separator || '&').inject({ }, function(hash, pair) {
 if ((pair = pair.split('='))[0]) {
 var key = decodeURIComponent(pair.shift());
 var value = pair.length > 1 ? pair.join('=') : pair[0];
 if (value != undefined) value = decodeURIComponent(value);

 if (key in hash) {
 if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
 hash[key].push(value);
 }
 else hash[key] = value;
 }
 return hash;
 });
 },

 toArray: function() {
 return this.split('');
 },

 succ: function() {
 return this.slice(0, this.length - 1) +
 String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
 },

 times: function(count) {
 return count < 1 ? '' : new Array(count + 1).join(this);
 },

 camelize: function() {
 var parts = this.split('-'), len = parts.length;
 if (len == 1) return parts[0];

 var camelized = this.charAt(0) == '-'
 ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
 : parts[0];

 for (var i = 1; i < len; i++)
 camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

 return camelized;
 },

 capitalize: function() {
 return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
 },

 underscore: function() {
 return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
 },

 dasherize: function() {
 return this.gsub(/_/,'-');
 },

 inspect: function(useDoubleQuotes) {
 var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
 var character = String.specialChar[match[0]];
 return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
 });
 if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
 return "'" + escapedString.replace(/'/g, '\\\'') + "'";
 },

 toJSON: function() {
 return this.inspect(true);
 },

 unfilterJSON: function(filter) {
 return this.sub(filter || Prototype.JSONFilter, '#{1}');
 },

 isJSON: function() {
 var str = this;
 if (str.blank()) return false;
 str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
 return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
 },

 evalJSON: function(sanitize) {
 var json = this.unfilterJSON();
 try {
 if (!sanitize || json.isJSON()) return eval('(' + json + ')');
 } catch (e) { }
 throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
 },

 include: function(pattern) {
 return this.indexOf(pattern) > -1;
 },

 startsWith: function(pattern) {
 return this.indexOf(pattern) === 0;
 },

 endsWith: function(pattern) {
 var d = this.length - pattern.length;
 return d >= 0 && this.lastIndexOf(pattern) === d;
 },

 empty: function() {
 return this == '';
 },

 blank: function() {
 return /^\s*$/.test(this);
 },

 interpolate: function(object, pattern) {
 return new Template(this, pattern).evaluate(object);
 }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
 escapeHTML: function() {
 return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
 },
 unescapeHTML: function() {
 return this.stripTags().replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
 }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
 if (Object.isFunction(replacement)) return replacement;
 var template = new Template(replacement);
 return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
 div: document.createElement('div'),
 text: document.createTextNode('')
});

String.prototype.escapeHTML.div.appendChild(String.prototype.escapeHTML.text);

var Template = Class.create({
 initialize: function(template, pattern) {
 this.template = template.toString();
 this.pattern = pattern || Template.Pattern;
 },

 evaluate: function(object) {
 if (Object.isFunction(object.toTemplateReplacements))
 object = object.toTemplateReplacements();

 return this.template.gsub(this.pattern, function(match) {
 if (object == null) return '';

 var before = match[1] || '';
 if (before == '\\') return match[2];

 var ctx = object, expr = match[3];
 var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
 match = pattern.exec(expr);
 if (match == null) return before;

 while (match != null) {
 var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
 ctx = ctx[comp];
 if (null == ctx || '' == match[3]) break;
 expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
 match = pattern.exec(expr);
 }

 return before + String.interpret(ctx);
 });
 }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = {
 each: function(iterator, context) {
 var index = 0;
 try {
 this._each(function(value) {
 iterator.call(context, value, index++);
 });
 } catch (e) {
 if (e != $break) throw e;
 }
 return this;
 },

 eachSlice: function(number, iterator, context) {
 var index = -number, slices = [], array = this.toArray();
 if (number < 1) return array;
 while ((index += number) < array.length)
 slices.push(array.slice(index, index+number));
 return slices.collect(iterator, context);
 },

 all: function(iterator, context) {
 iterator = iterator || Prototype.K;
 var result = true;
 this.each(function(value, index) {
 result = result && !!iterator.call(context, value, index);
 if (!result) throw $break;
 });
 return result;
 },

 any: function(iterator, context) {
 iterator = iterator || Prototype.K;
 var result = false;
 this.each(function(value, index) {
 if (result = !!iterator.call(context, value, index))
 throw $break;
 });
 return result;
 },

 collect: function(iterator, context) {
 iterator = iterator || Prototype.K;
 var results = [];
 this.each(function(value, index) {
 results.push(iterator.call(context, value, index));
 });
 return results;
 },

 detect: function(iterator, context) {
 var result;
 this.each(function(value, index) {
 if (iterator.call(context, value, index)) {
 result = value;
 throw $break;
 }
 });
 return result;
 },

 findAll: function(iterator, context) {
 var results = [];
 this.each(function(value, index) {
 if (iterator.call(context, value, index))
 results.push(value);
 });
 return results;
 },

 grep: function(filter, iterator, context) {
 iterator = iterator || Prototype.K;
 var results = [];

 if (Object.isString(filter))
 filter = new RegExp(filter);

 this.each(function(value, index) {
 if (filter.match(value))
 results.push(iterator.call(context, value, index));
 });
 return results;
 },

 include: function(object) {
 if (Object.isFunction(this.indexOf))
 if (this.indexOf(object) != -1) return true;

 var found = false;
 this.each(function(value) {
 if (value == object) {
 found = true;
 throw $break;
 }
 });
 return found;
 },

 inGroupsOf: function(number, fillWith) {
 fillWith = Object.isUndefined(fillWith) ? null : fillWith;
 return this.eachSlice(number, function(slice) {
 while(slice.length < number) slice.push(fillWith);
 return slice;
 });
 },

 inject: function(memo, iterator, context) {
 this.each(function(value, index) {
 memo = iterator.call(context, memo, value, index);
 });
 return memo;
 },

 invoke: function(method) {
 var args = $A(arguments).slice(1);
 return this.map(function(value) {
 return value[method].apply(value, args);
 });
 },

 max: function(iterator, context) {
 iterator = iterator || Prototype.K;
 var result;
 this.each(function(value, index) {
 value = iterator.call(context, value, index);
 if (result == null || value >= result)
 result = value;
 });
 return result;
 },

 min: function(iterator, context) {
 iterator = iterator || Prototype.K;
 var result;
 this.each(function(value, index) {
 value = iterator.call(context, value, index);
 if (result == null || value < result)
 result = value;
 });
 return result;
 },

 partition: function(iterator, context) {
 iterator = iterator || Prototype.K;
 var trues = [], falses = [];
 this.each(function(value, index) {
 (iterator.call(context, value, index) ?
 trues : falses).push(value);
 });
 return [trues, falses];
 },

 pluck: function(property) {
 var results = [];
 this.each(function(value) {
 results.push(value[property]);
 });
 return results;
 },

 reject: function(iterator, context) {
 var results = [];
 this.each(function(value, index) {
 if (!iterator.call(context, value, index))
 results.push(value);
 });
 return results;
 },

 sortBy: function(iterator, context) {
 return this.map(function(value, index) {
 return {
 value: value,
 criteria: iterator.call(context, value, index)
 };
 }).sort(function(left, right) {
 var a = left.criteria, b = right.criteria;
 return a < b ? -1 : a > b ? 1 : 0;
 }).pluck('value');
 },

 toArray: function() {
 return this.map();
 },

 zip: function() {
 var iterator = Prototype.K, args = $A(arguments);
 if (Object.isFunction(args.last()))
 iterator = args.pop();

 var collections = [this].concat(args).map($A);
 return this.map(function(value, index) {
 return iterator(collections.pluck(index));
 });
 },

 size: function() {
 return this.toArray().length;
 },

 inspect: function() {
 return '#<Enumerable:' + this.toArray().inspect() + '>';
 }
};

Object.extend(Enumerable, {
 map: Enumerable.collect,
 find: Enumerable.detect,
 select: Enumerable.findAll,
 filter: Enumerable.findAll,
 member: Enumerable.include,
 entries: Enumerable.toArray,
 every: Enumerable.all,
 some: Enumerable.any
});
function $A(iterable) {
 if (!iterable) return [];
 if (iterable.toArray) return iterable.toArray();
 var length = iterable.length || 0, results = new Array(length);
 while (length--) results[length] = iterable[length];
 return results;
}

if (Prototype.Browser.WebKit) {
 $A = function(iterable) {
 if (!iterable) return [];
 // In Safari, only use the `toArray` method if it's not a NodeList.
 // A NodeList is a function, has an function `item` property, and a numeric
 // `length` property. Adapted from Google Doctype.
 if (!(typeof iterable === 'function' && typeof iterable.length ===
 'number' && typeof iterable.item === 'function') && iterable.toArray)
 return iterable.toArray();
 var length = iterable.length || 0, results = new Array(length);
 while (length--) results[length] = iterable[length];
 return results;
 };
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
 _each: function(iterator) {
 for (var i = 0, length = this.length; i < length; i++)
 iterator(this[i]);
 },

 clear: function() {
 this.length = 0;
 return this;
 },

 first: function() {
 return this[0];
 },

 last: function() {
 return this[this.length - 1];
 },

 compact: function() {
 return this.select(function(value) {
 return value != null;
 });
 },

 flatten: function() {
 return this.inject([], function(array, value) {
 return array.concat(Object.isArray(value) ?
 value.flatten() : [value]);
 });
 },

 without: function() {
 var values = $A(arguments);
 return this.select(function(value) {
 return !values.include(value);
 });
 },

 reverse: function(inline) {
 return (inline !== false ? this : this.toArray())._reverse();
 },

 reduce: function() {
 return this.length > 1 ? this : this[0];
 },

 uniq: function(sorted) {
 return this.inject([], function(array, value, index) {
 if (0 == index || (sorted ? array.last() != value : !array.include(value)))
 array.push(value);
 return array;
 });
 },

 intersect: function(array) {
 return this.uniq().findAll(function(item) {
 return array.detect(function(value) { return item === value });
 });
 },

 clone: function() {
 return [].concat(this);
 },

 size: function() {
 return this.length;
 },

 inspect: function() {
 return '[' + this.map(Object.inspect).join(', ') + ']';
 },

 toJSON: function() {
 var results = [];
 this.each(function(object) {
 var value = Object.toJSON(object);
 if (!Object.isUndefined(value)) results.push(value);
 });
 return '[' + results.join(', ') + ']';
 }
});

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
 Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
 i || (i = 0);
 var length = this.length;
 if (i < 0) i = length + i;
 for (; i < length; i++)
 if (this[i] === item) return i;
 return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
 i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
 var n = this.slice(0, i).reverse().indexOf(item);
 return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
 if (!Object.isString(string)) return [];
 string = string.strip();
 return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
 Array.prototype.concat = function() {
 var array = [];
 for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
 for (var i = 0, length = arguments.length; i < length; i++) {
 if (Object.isArray(arguments[i])) {
 for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
 array.push(arguments[i][j]);
 } else {
 array.push(arguments[i]);
 }
 }
 return array;
 };
}
Object.extend(Number.prototype, {
 toColorPart: function() {
 return this.toPaddedString(2, 16);
 },

 succ: function() {
 return this + 1;
 },

 times: function(iterator, context) {
 $R(0, this, true).each(iterator, context);
 return this;
 },

 toPaddedString: function(length, radix) {
 var string = this.toString(radix || 10);
 return '0'.times(length - string.length) + string;
 },

 toJSON: function() {
 return isFinite(this) ? this.toString() : 'null';
 }
});

$w('abs round ceil floor').each(function(method){
 Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
 return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {

 function toQueryPair(key, value) {
 if (Object.isUndefined(value)) return key;
 return key + '=' + encodeURIComponent(String.interpret(value));
 }

 return {
 initialize: function(object) {
 this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
 },

 _each: function(iterator) {
 for (var key in this._object) {
 var value = this._object[key], pair = [key, value];
 pair.key = key;
 pair.value = value;
 iterator(pair);
 }
 },

 set: function(key, value) {
 return this._object[key] = value;
 },

 get: function(key) {
 // simulating poorly supported hasOwnProperty
 if (this._object[key] !== Object.prototype[key])
 return this._object[key];
 },

 unset: function(key) {
 var value = this._object[key];
 delete this._object[key];
 return value;
 },

 toObject: function() {
 return Object.clone(this._object);
 },

 keys: function() {
 return this.pluck('key');
 },

 values: function() {
 return this.pluck('value');
 },

 index: function(value) {
 var match = this.detect(function(pair) {
 return pair.value === value;
 });
 return match && match.key;
 },

 merge: function(object) {
 return this.clone().update(object);
 },

 update: function(object) {
 return new Hash(object).inject(this, function(result, pair) {
 result.set(pair.key, pair.value);
 return result;
 });
 },

 toQueryString: function() {
 return this.inject([], function(results, pair) {
 var key = encodeURIComponent(pair.key), values = pair.value;

 if (values && typeof values == 'object') {
 if (Object.isArray(values))
 return results.concat(values.map(toQueryPair.curry(key)));
 } else results.push(toQueryPair(key, values));
 return results;
 }).join('&');
 },

 inspect: function() {
 return '#<Hash:{' + this.map(function(pair) {
 return pair.map(Object.inspect).join(': ');
 }).join(', ') + '}>';
 },

 toJSON: function() {
 return Object.toJSON(this.toObject());
 },

 clone: function() {
 return new Hash(this);
 }
 }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
 initialize: function(start, end, exclusive) {
 this.start = start;
 this.end = end;
 this.exclusive = exclusive;
 },

 _each: function(iterator) {
 var value = this.start;
 while (this.include(value)) {
 iterator(value);
 value = value.succ();
 }
 },

 include: function(value) {
 if (value < this.start)
 return false;
 if (this.exclusive)
 return value < this.end;
 return value <= this.end;
 }
});

var $R = function(start, end, exclusive) {
 return new ObjectRange(start, end, exclusive);
};

var Ajax = {
 getTransport: function() {
 return Try.these(
 function() {return new XMLHttpRequest()},
 function() {return new ActiveXObject('Msxml2.XMLHTTP')},
 function() {return new ActiveXObject('Microsoft.XMLHTTP')}
 ) || false;
 },

 activeRequestCount: 0
};

Ajax.Responders = {
 responders: [],

 _each: function(iterator) {
 this.responders._each(iterator);
 },

 register: function(responder) {
 if (!this.include(responder))
 this.responders.push(responder);
 },

 unregister: function(responder) {
 this.responders = this.responders.without(responder);
 },

 dispatch: function(callback, request, transport, json) {
 this.each(function(responder) {
 if (Object.isFunction(responder[callback])) {
 try {
 responder[callback].apply(responder, [request, transport, json]);
 } catch (e) { }
 }
 });
 }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
 onCreate: function() { Ajax.activeRequestCount++ },
 onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
 initialize: function(options) {
 this.options = {
 method: 'post',
 asynchronous: true,
 contentType: 'application/x-www-form-urlencoded',
 encoding: 'UTF-8',
 parameters: '',
 evalJSON: true,
 evalJS: true
 };
 Object.extend(this.options, options || { });

 this.options.method = this.options.method.toLowerCase();

 if (Object.isString(this.options.parameters))
 this.options.parameters = this.options.parameters.toQueryParams();
 else if (Object.isHash(this.options.parameters))
 this.options.parameters = this.options.parameters.toObject();
 }
});

Ajax.Request = Class.create(Ajax.Base, {
 _complete: false,

 initialize: function($super, url, options) {
 $super(options);
 this.transport = Ajax.getTransport();
 this.request(url);
 },

 request: function(url) {
 this.url = url;
 this.method = this.options.method;
 var params = Object.clone(this.options.parameters);

 if (!['get', 'post'].include(this.method)) {
 // simulate other verbs over post
 params['_method'] = this.method;
 this.method = 'post';
 }

 this.parameters = params;

 if (params = Object.toQueryString(params)) {
 // when GET, append parameters to URL
 if (this.method == 'get')
 this.url += (this.url.include('?') ? '&' : '?') + params;
 else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
 params += '&_=';
 }

 try {
 var response = new Ajax.Response(this);
 if (this.options.onCreate) this.options.onCreate(response);
 Ajax.Responders.dispatch('onCreate', this, response);

 this.transport.open(this.method.toUpperCase(), this.url,
 this.options.asynchronous);

 if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

 this.transport.onreadystatechange = this.onStateChange.bind(this);
 this.setRequestHeaders();

 this.body = this.method == 'post' ? (this.options.postBody || params) : null;
 this.transport.send(this.body);

 /* Force Firefox to handle ready state 4 for synchronous requests */
 if (!this.options.asynchronous && this.transport.overrideMimeType)
 this.onStateChange();

 }
 catch (e) {
 this.dispatchException(e);
 }
 },

 onStateChange: function() {
 var readyState = this.transport.readyState;
 if (readyState > 1 && !((readyState == 4) && this._complete))
 this.respondToReadyState(this.transport.readyState);
 },

 setRequestHeaders: function() {
 var headers = {
 'X-Requested-With': 'XMLHttpRequest',
 'X-Prototype-Version': Prototype.Version,
 'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
 };

 if (this.method == 'post') {
 headers['Content-type'] = this.options.contentType +
 (this.options.encoding ? '; charset=' + this.options.encoding : '');

 /* Force "Connection: close" for older Mozilla browsers to work
 * around a bug where XMLHttpRequest sends an incorrect
 * Content-length header. See Mozilla Bugzilla #246651.
 */
 if (this.transport.overrideMimeType &&
 (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
 headers['Connection'] = 'close';
 }

 // user-defined headers
 if (typeof this.options.requestHeaders == 'object') {
 var extras = this.options.requestHeaders;

 if (Object.isFunction(extras.push))
 for (var i = 0, length = extras.length; i < length; i += 2)
 headers[extras[i]] = extras[i+1];
 else
 $H(extras).each(function(pair) { headers[pair.key] = pair.value });
 }

 for (var name in headers)
 this.transport.setRequestHeader(name, headers[name]);
 },

 success: function() {
 var status = this.getStatus();
 return !status || (status >= 200 && status < 300);
 },

 getStatus: function() {
 try {
 return this.transport.status || 0;
 } catch (e) { return 0 }
 },

 respondToReadyState: function(readyState) {
 var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

 if (state == 'Complete') {
 try {
 this._complete = true;
 (this.options['on' + response.status]
 || this.options['on' + (this.success() ? 'Success' : 'Failure')]
 || Prototype.emptyFunction)(response, response.headerJSON);
 } catch (e) {
 this.dispatchException(e);
 }

 var contentType = response.getHeader('Content-type');
 if (this.options.evalJS == 'force'
 || (this.options.evalJS && this.isSameOrigin() && contentType
 && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
 this.evalResponse();
 }

 try {
 (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
 Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
 } catch (e) {
 this.dispatchException(e);
 }

 if (state == 'Complete') {
 // avoid memory leak in MSIE: clean up
 this.transport.onreadystatechange = Prototype.emptyFunction;
 }
 },

 isSameOrigin: function() {
 var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
 return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
 protocol: location.protocol,
 domain: document.domain,
 port: location.port ? ':' + location.port : ''
 }));
 },

 getHeader: function(name) {
 try {
 return this.transport.getResponseHeader(name) || null;
 } catch (e) { return null }
 },

 evalResponse: function() {
 try {
 return eval((this.transport.responseText || '').unfilterJSON());
 } catch (e) {
 this.dispatchException(e);
 }
 },

 dispatchException: function(exception) {
 (this.options.onException || Prototype.emptyFunction)(this, exception);
 Ajax.Responders.dispatch('onException', this, exception);
 }
});

Ajax.Request.Events =
 ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
 initialize: function(request){
 this.request = request;
 var transport = this.transport = request.transport,
 readyState = this.readyState = transport.readyState;

 if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
 this.status = this.getStatus();
 this.statusText = this.getStatusText();
 this.responseText = String.interpret(transport.responseText);
 this.headerJSON = this._getHeaderJSON();
 }

 if(readyState == 4) {
 var xml = transport.responseXML;
 this.responseXML = Object.isUndefined(xml) ? null : xml;
 this.responseJSON = this._getResponseJSON();
 }
 },

 status: 0,
 statusText: '',

 getStatus: Ajax.Request.prototype.getStatus,

 getStatusText: function() {
 try {
 return this.transport.statusText || '';
 } catch (e) { return '' }
 },

 getHeader: Ajax.Request.prototype.getHeader,

 getAllHeaders: function() {
 try {
 return this.getAllResponseHeaders();
 } catch (e) { return null }
 },

 getResponseHeader: function(name) {
 return this.transport.getResponseHeader(name);
 },

 getAllResponseHeaders: function() {
 return this.transport.getAllResponseHeaders();
 },

 _getHeaderJSON: function() {
 var json = this.getHeader('X-JSON');
 if (!json) return null;
 json = decodeURIComponent(escape(json));
 try {
 return json.evalJSON(this.request.options.sanitizeJSON ||
 !this.request.isSameOrigin());
 } catch (e) {
 this.request.dispatchException(e);
 }
 },

 _getResponseJSON: function() {
 var options = this.request.options;
 if (!options.evalJSON || (options.evalJSON != 'force' &&
 !(this.getHeader('Content-type') || '').include('application/json')) ||
 this.responseText.blank())
 return null;
 try {
 return this.responseText.evalJSON(options.sanitizeJSON ||
 !this.request.isSameOrigin());
 } catch (e) {
 this.request.dispatchException(e);
 }
 }
});

Ajax.Updater = Class.create(Ajax.Request, {
 initialize: function($super, container, url, options) {
 this.container = {
 success: (container.success || container),
 failure: (container.failure || (container.success ? null : container))
 };

 options = Object.clone(options);
 var onComplete = options.onComplete;
 options.onComplete = (function(response, json) {
 this.updateContent(response.responseText);
 if (Object.isFunction(onComplete)) onComplete(response, json);
 }).bind(this);

 $super(url, options);
 },

 updateContent: function(responseText) {
 var receiver = this.container[this.success() ? 'success' : 'failure'],
 options = this.options;

 if (!options.evalScripts) responseText = responseText.stripScripts();

 if (receiver = $(receiver)) {
 if (options.insertion) {
 if (Object.isString(options.insertion)) {
 var insertion = { }; insertion[options.insertion] = responseText;
 receiver.insert(insertion);
 }
 else options.insertion(receiver, responseText);
 }
 else receiver.update(responseText);
 }
 }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
 initialize: function($super, container, url, options) {
 $super(options);
 this.onComplete = this.options.onComplete;

 this.frequency = (this.options.frequency || 2);
 this.decay = (this.options.decay || 1);

 this.updater = { };
 this.container = container;
 this.url = url;

 this.start();
 },

 start: function() {
 this.options.onComplete = this.updateComplete.bind(this);
 this.onTimerEvent();
 },

 stop: function() {
 this.updater.options.onComplete = undefined;
 clearTimeout(this.timer);
 (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
 },

 updateComplete: function(response) {
 if (this.options.decay) {
 this.decay = (response.responseText == this.lastText ?
 this.decay * this.options.decay : 1);

 this.lastText = response.responseText;
 }
 this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
 },

 onTimerEvent: function() {
 this.updater = new Ajax.Updater(this.container, this.url, this.options);
 }
});
function $(element) {
 if (arguments.length > 1) {
 for (var i = 0, elements = [], length = arguments.length; i < length; i++)
 elements.push($(arguments[i]));
 return elements;
 }
 if (Object.isString(element))
 element = document.getElementById(element);
 return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
 document._getElementsByXPath = function(expression, parentElement) {
 var results = [];
 var query = document.evaluate(expression, $(parentElement) || document,
 null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
 for (var i = 0, length = query.snapshotLength; i < length; i++)
 results.push(Element.extend(query.snapshotItem(i)));
 return results;
 };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
 // DOM level 2 ECMAScript Language Binding
 Object.extend(Node, {
 ELEMENT_NODE: 1,
 ATTRIBUTE_NODE: 2,
 TEXT_NODE: 3,
 CDATA_SECTION_NODE: 4,
 ENTITY_REFERENCE_NODE: 5,
 ENTITY_NODE: 6,
 PROCESSING_INSTRUCTION_NODE: 7,
 COMMENT_NODE: 8,
 DOCUMENT_NODE: 9,
 DOCUMENT_TYPE_NODE: 10,
 DOCUMENT_FRAGMENT_NODE: 11,
 NOTATION_NODE: 12
 });
}

(function() {
 var element = this.Element;
 this.Element = function(tagName, attributes) {
 attributes = attributes || { };
 tagName = tagName.toLowerCase();
 var cache = Element.cache;
 if (Prototype.Browser.IE && attributes.name) {
 tagName = '<' + tagName + ' name="' + attributes.name + '">';
 delete attributes.name;
 return Element.writeAttribute(document.createElement(tagName), attributes);
 }
 if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
 return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
 };
 Object.extend(this.Element, element || { });
 if (element) this.Element.prototype = element.prototype;
}).call(window);

Element.cache = { };

Element.Methods = {
 visible: function(element) {
 return $(element).style.display != 'none';
 },

 toggle: function(element) {
 element = $(element);
 Element[Element.visible(element) ? 'hide' : 'show'](element);
 return element;
 },

 hide: function(element) {
 element = $(element);
 element.style.display = 'none';
 return element;
 },

 show: function(element) {
 element = $(element);
 element.style.display = '';
 return element;
 },

 remove: function(element) {
 element = $(element);
 element.parentNode.removeChild(element);
 return element;
 },

 update: function(element, content) {
 element = $(element);
 if (content && content.toElement) content = content.toElement();
 if (Object.isElement(content)) return element.update().insert(content);
 content = Object.toHTML(content);
 element.innerHTML = content.stripScripts();
 content.evalScripts.bind(content).defer();
 return element;
 },

 replace: function(element, content) {
 element = $(element);
 if (content && content.toElement) content = content.toElement();
 else if (!Object.isElement(content)) {
 content = Object.toHTML(content);
 var range = element.ownerDocument.createRange();
 range.selectNode(element);
 content.evalScripts.bind(content).defer();
 content = range.createContextualFragment(content.stripScripts());
 }
 element.parentNode.replaceChild(content, element);
 return element;
 },

 insert: function(element, insertions) {
 element = $(element);

 if (Object.isString(insertions) || Object.isNumber(insertions) ||
 Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
 insertions = {bottom:insertions};

 var content, insert, tagName, childNodes;

 for (var position in insertions) {
 content = insertions[position];
 position = position.toLowerCase();
 insert = Element._insertionTranslations[position];

 if (content && content.toElement) content = content.toElement();
 if (Object.isElement(content)) {
 insert(element, content);
 continue;
 }

 content = Object.toHTML(content);

 tagName = ((position == 'before' || position == 'after')
 ? element.parentNode : element).tagName.toUpperCase();

 childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

 if (position == 'top' || position == 'after') childNodes.reverse();
 childNodes.each(insert.curry(element));

 content.evalScripts.bind(content).defer();
 }

 return element;
 },

 wrap: function(element, wrapper, attributes) {
 element = $(element);
 if (Object.isElement(wrapper))
 $(wrapper).writeAttribute(attributes || { });
 else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
 else wrapper = new Element('div', wrapper);
 if (element.parentNode)
 element.parentNode.replaceChild(wrapper, element);
 wrapper.appendChild(element);
 return wrapper;
 },

 inspect: function(element) {
 element = $(element);
 var result = '<' + element.tagName.toLowerCase();
 $H({'id': 'id', 'className': 'class'}).each(function(pair) {
 var property = pair.first(), attribute = pair.last();
 var value = (element[property] || '').toString();
 if (value) result += ' ' + attribute + '=' + value.inspect(true);
 });
 return result + '>';
 },

 recursivelyCollect: function(element, property) {
 element = $(element);
 var elements = [];
 while (element = element[property])
 if (element.nodeType == 1)
 elements.push(Element.extend(element));
 return elements;
 },

 ancestors: function(element) {
 return $(element).recursivelyCollect('parentNode');
 },

 descendants: function(element) {
 return $(element).select("*");
 },

 firstDescendant: function(element) {
 element = $(element).firstChild;
 while (element && element.nodeType != 1) element = element.nextSibling;
 return $(element);
 },

 immediateDescendants: function(element) {
 if (!(element = $(element).firstChild)) return [];
 while (element && element.nodeType != 1) element = element.nextSibling;
 if (element) return [element].concat($(element).nextSiblings());
 return [];
 },

 previousSiblings: function(element) {
 return $(element).recursivelyCollect('previousSibling');
 },

 nextSiblings: function(element) {
 return $(element).recursivelyCollect('nextSibling');
 },

 siblings: function(element) {
 element = $(element);
 return element.previousSiblings().reverse().concat(element.nextSiblings());
 },

 match: function(element, selector) {
 if (Object.isString(selector))
 selector = new Selector(selector);
 return selector.match($(element));
 },

 up: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return $(element.parentNode);
 var ancestors = element.ancestors();
 return Object.isNumber(expression) ? ancestors[expression] :
 Selector.findElement(ancestors, expression, index);
 },

 down: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return element.firstDescendant();
 return Object.isNumber(expression) ? element.descendants()[expression] :
 Element.select(element, expression)[index || 0];
 },

 previous: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
 var previousSiblings = element.previousSiblings();
 return Object.isNumber(expression) ? previousSiblings[expression] :
 Selector.findElement(previousSiblings, expression, index);
 },

 next: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
 var nextSiblings = element.nextSiblings();
 return Object.isNumber(expression) ? nextSiblings[expression] :
 Selector.findElement(nextSiblings, expression, index);
 },

 select: function() {
 var args = $A(arguments), element = $(args.shift());
 return Selector.findChildElements(element, args);
 },

 adjacent: function() {
 var args = $A(arguments), element = $(args.shift());
 return Selector.findChildElements(element.parentNode, args).without(element);
 },

 identify: function(element) {
 element = $(element);
 var id = element.readAttribute('id'), self = arguments.callee;
 if (id) return id;
 do { id = 'anonymous_element_' + self.counter++ } while ($(id));
 element.writeAttribute('id', id);
 return id;
 },

 readAttribute: function(element, name) {
 element = $(element);
 if (Prototype.Browser.IE) {
 var t = Element._attributeTranslations.read;
 if (t.values[name]) return t.values[name](element, name);
 if (t.names[name]) name = t.names[name];
 if (name.include(':')) {
 return (!element.attributes || !element.attributes[name]) ? null :
 element.attributes[name].value;
 }
 }
 return element.getAttribute(name);
 },

 writeAttribute: function(element, name, value) {
 element = $(element);
 var attributes = { }, t = Element._attributeTranslations.write;

 if (typeof name == 'object') attributes = name;
 else attributes[name] = Object.isUndefined(value) ? true : value;

 for (var attr in attributes) {
 name = t.names[attr] || attr;
 value = attributes[attr];
 if (t.values[attr]) name = t.values[attr](element, value);
 if (value === false || value === null)
 element.removeAttribute(name);
 else if (value === true)
 element.setAttribute(name, name);
 else element.setAttribute(name, value);
 }
 return element;
 },

 getHeight: function(element) {
 return $(element).getDimensions().height;
 },

 getWidth: function(element) {
 return $(element).getDimensions().width;
 },

 classNames: function(element) {
 return new Element.ClassNames(element);
 },

 hasClassName: function(element, className) {
 if (!(element = $(element))) return;
 var elementClassName = element.className;
 return (elementClassName.length > 0 && (elementClassName == className ||
 new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
 },

 addClassName: function(element, className) {
 if (!(element = $(element))) return;
 if (!element.hasClassName(className))
 element.className += (element.className ? ' ' : '') + className;
 return element;
 },

 removeClassName: function(element, className) {
 if (!(element = $(element))) return;
 element.className = element.className.replace(
 new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
 return element;
 },

 toggleClassName: function(element, className) {
 if (!(element = $(element))) return;
 return element[element.hasClassName(className) ?
 'removeClassName' : 'addClassName'](className);
 },

 // removes whitespace-only text node children
 cleanWhitespace: function(element) {
 element = $(element);
 var node = element.firstChild;
 while (node) {
 var nextNode = node.nextSibling;
 if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
 element.removeChild(node);
 node = nextNode;
 }
 return element;
 },

 empty: function(element) {
 return $(element).innerHTML.blank();
 },

 descendantOf: function(element, ancestor) {
 element = $(element), ancestor = $(ancestor);

 if (element.compareDocumentPosition)
 return (element.compareDocumentPosition(ancestor) & 8) === 8;

 if (ancestor.contains)
 return ancestor.contains(element) && ancestor !== element;

 while (element = element.parentNode)
 if (element == ancestor) return true;

 return false;
 },

 scrollTo: function(element) {
 element = $(element);
 var pos = element.cumulativeOffset();
 window.scrollTo(pos[0], pos[1]);
 return element;
 },

 getStyle: function(element, style) {
 element = $(element);
 style = style == 'float' ? 'cssFloat' : style.camelize();
 var value = element.style[style];
 if (!value || value == 'auto') {
 var css = document.defaultView.getComputedStyle(element, null);
 value = css ? css[style] : null;
 }
 if (style == 'opacity') return value ? parseFloat(value) : 1.0;
 return value == 'auto' ? null : value;
 },

 getOpacity: function(element) {
 return $(element).getStyle('opacity');
 },

 setStyle: function(element, styles) {
 element = $(element);
 var elementStyle = element.style, match;
 if (Object.isString(styles)) {
 element.style.cssText += ';' + styles;
 return styles.include('opacity') ?
 element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
 }
 for (var property in styles)
 if (property == 'opacity') element.setOpacity(styles[property]);
 else
 elementStyle[(property == 'float' || property == 'cssFloat') ?
 (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
 property] = styles[property];

 return element;
 },

 setOpacity: function(element, value) {
 element = $(element);
 element.style.opacity = (value == 1 || value === '') ? '' :
 (value < 0.00001) ? 0 : value;
 return element;
 },

 getDimensions: function(element) {
 element = $(element);
 var display = element.getStyle('display');
 if (display != 'none' && display != null) // Safari bug
 return {width: element.offsetWidth, height: element.offsetHeight};

 // All *Width and *Height properties give 0 on elements with display none,
 // so enable the element temporarily
 var els = element.style;
 var originalVisibility = els.visibility;
 var originalPosition = els.position;
 var originalDisplay = els.display;
 els.visibility = 'hidden';
 els.position = 'absolute';
 els.display = 'block';
 var originalWidth = element.clientWidth;
 var originalHeight = element.clientHeight;
 els.display = originalDisplay;
 els.position = originalPosition;
 els.visibility = originalVisibility;
 return {width: originalWidth, height: originalHeight};
 },

 makePositioned: function(element) {
 element = $(element);
 var pos = Element.getStyle(element, 'position');
 if (pos == 'static' || !pos) {
 element._madePositioned = true;
 element.style.position = 'relative';
 // Opera returns the offset relative to the positioning context, when an
 // element is position relative but top and left have not been defined
 if (Prototype.Browser.Opera) {
 element.style.top = 0;
 element.style.left = 0;
 }
 }
 return element;
 },

 undoPositioned: function(element) {
 element = $(element);
 if (element._madePositioned) {
 element._madePositioned = undefined;
 element.style.position =
 element.style.top =
 element.style.left =
 element.style.bottom =
 element.style.right = '';
 }
 return element;
 },

 makeClipping: function(element) {
 element = $(element);
 if (element._overflow) return element;
 element._overflow = Element.getStyle(element, 'overflow') || 'auto';
 if (element._overflow !== 'hidden')
 element.style.overflow = 'hidden';
 return element;
 },

 undoClipping: function(element) {
 element = $(element);
 if (!element._overflow) return element;
 element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
 element._overflow = null;
 return element;
 },

 cumulativeOffset: function(element) {
 var valueT = 0, valueL = 0;
 do {
 valueT += element.offsetTop || 0;
 valueL += element.offsetLeft || 0;
 element = element.offsetParent;
 } while (element);
 return Element._returnOffset(valueL, valueT);
 },

 positionedOffset: function(element) {
 var valueT = 0, valueL = 0;
 do {
 valueT += element.offsetTop || 0;
 valueL += element.offsetLeft || 0;
 element = element.offsetParent;
 if (element) {
 if (element.tagName.toUpperCase() == 'BODY') break;
 var p = Element.getStyle(element, 'position');
 if (p !== 'static') break;
 }
 } while (element);
 return Element._returnOffset(valueL, valueT);
 },

 absolutize: function(element) {
 element = $(element);
 if (element.getStyle('position') == 'absolute') return element;
 // Position.prepare(); // To be done manually by Scripty when it needs it.

 var offsets = element.positionedOffset();
 var top = offsets[1];
 var left = offsets[0];
 var width = element.clientWidth;
 var height = element.clientHeight;

 element._originalLeft = left - parseFloat(element.style.left || 0);
 element._originalTop = top - parseFloat(element.style.top || 0);
 element._originalWidth = element.style.width;
 element._originalHeight = element.style.height;

 element.style.position = 'absolute';
 element.style.top = top + 'px';
 element.style.left = left + 'px';
 element.style.width = width + 'px';
 element.style.height = height + 'px';
 return element;
 },

 relativize: function(element) {
 element = $(element);
 if (element.getStyle('position') == 'relative') return element;
 // Position.prepare(); // To be done manually by Scripty when it needs it.

 element.style.position = 'relative';
 var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
 var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

 element.style.top = top + 'px';
 element.style.left = left + 'px';
 element.style.height = element._originalHeight;
 element.style.width = element._originalWidth;
 return element;
 },

 cumulativeScrollOffset: function(element) {
 var valueT = 0, valueL = 0;
 do {
 valueT += element.scrollTop || 0;
 valueL += element.scrollLeft || 0;
 element = element.parentNode;
 } while (element);
 return Element._returnOffset(valueL, valueT);
 },

 getOffsetParent: function(element) {
 if (element.offsetParent) return $(element.offsetParent);
 if (element == document.body) return $(element);

 while ((element = element.parentNode) && element != document.body)
 if (Element.getStyle(element, 'position') != 'static')
 return $(element);

 return $(document.body);
 },

 viewportOffset: function(forElement) {
 var valueT = 0, valueL = 0;

 var element = forElement;
 do {
 valueT += element.offsetTop || 0;
 valueL += element.offsetLeft || 0;

 // Safari fix
 if (element.offsetParent == document.body &&
 Element.getStyle(element, 'position') == 'absolute') break;

 } while (element = element.offsetParent);

 element = forElement;
 do {
 if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
 valueT -= element.scrollTop || 0;
 valueL -= element.scrollLeft || 0;
 }
 } while (element = element.parentNode);

 return Element._returnOffset(valueL, valueT);
 },

 clonePosition: function(element, source) {
 var options = Object.extend({
 setLeft: true,
 setTop: true,
 setWidth: true,
 setHeight: true,
 offsetTop: 0,
 offsetLeft: 0
 }, arguments[2] || { });

 // find page position of source
 source = $(source);
 var p = source.viewportOffset();

 // find coordinate system to use
 element = $(element);
 var delta = [0, 0];
 var parent = null;
 // delta [0,0] will do fine with position: fixed elements,
 // position:absolute needs offsetParent deltas
 if (Element.getStyle(element, 'position') == 'absolute') {
 parent = element.getOffsetParent();
 delta = parent.viewportOffset();
 }

 // correct by body offsets (fixes Safari)
 if (parent == document.body) {
 delta[0] -= document.body.offsetLeft;
 delta[1] -= document.body.offsetTop;
 }

 // set position
 if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
 if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
 if (options.setWidth) element.style.width = source.offsetWidth + 'px';
 if (options.setHeight) element.style.height = source.offsetHeight + 'px';
 return element;
 }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
 getElementsBySelector: Element.Methods.select,
 childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
 write: {
 names: {
 className: 'class',
 htmlFor: 'for'
 },
 values: { }
 }
};

if (Prototype.Browser.Opera) {
 Element.Methods.getStyle = Element.Methods.getStyle.wrap(
 function(proceed, element, style) {
 switch (style) {
 case 'left': case 'top': case 'right': case 'bottom':
 if (proceed(element, 'position') === 'static') return null;
 case 'height': case 'width':
 // returns '0px' for hidden elements; we want it to return null
 if (!Element.visible(element)) return null;

 // returns the border-box dimensions rather than the content-box
 // dimensions, so we subtract padding and borders from the value
 var dim = parseInt(proceed(element, style), 10);

 if (dim !== element['offset' + style.capitalize()])
 return dim + 'px';

 var properties;
 if (style === 'height') {
 properties = ['border-top-width', 'padding-top',
 'padding-bottom', 'border-bottom-width'];
 }
 else {
 properties = ['border-left-width', 'padding-left',
 'padding-right', 'border-right-width'];
 }
 return properties.inject(dim, function(memo, property) {
 var val = proceed(element, property);
 return val === null ? memo : memo - parseInt(val, 10);
 }) + 'px';
 default: return proceed(element, style);
 }
 }
 );

 Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
 function(proceed, element, attribute) {
 if (attribute === 'title') return element.title;
 return proceed(element, attribute);
 }
 );
}

else if (Prototype.Browser.IE) {
 // IE doesn't report offsets correctly for static elements, so we change them
 // to "relative" to get the values, then change them back.
 Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
 function(proceed, element) {
 element = $(element);
 // IE throws an error if element is not in document
 try { element.offsetParent }
 catch(e) { return $(document.body) }
 var position = element.getStyle('position');
 if (position !== 'static') return proceed(element);
 element.setStyle({ position: 'relative' });
 var value = proceed(element);
 element.setStyle({ position: position });
 return value;
 }
 );

 $w('positionedOffset viewportOffset').each(function(method) {
 Element.Methods[method] = Element.Methods[method].wrap(
 function(proceed, element) {
 element = $(element);
 try { element.offsetParent }
 catch(e) { return Element._returnOffset(0,0) }
 var position = element.getStyle('position');
 if (position !== 'static') return proceed(element);
 // Trigger hasLayout on the offset parent so that IE6 reports
 // accurate offsetTop and offsetLeft values for position: fixed.
 var offsetParent = element.getOffsetParent();
 if (offsetParent && offsetParent.getStyle('position') === 'fixed')
 offsetParent.setStyle({ zoom: 1 });
 element.setStyle({ position: 'relative' });
 var value = proceed(element);
 element.setStyle({ position: position });
 return value;
 }
 );
 });

 Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
 function(proceed, element) {
 try { element.offsetParent }
 catch(e) { return Element._returnOffset(0,0) }
 return proceed(element);
 }
 );

 Element.Methods.getStyle = function(element, style) {
 element = $(element);
 style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
 var value = element.style[style];
 if (!value && element.currentStyle) value = element.currentStyle[style];

 if (style == 'opacity') {
 if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
 if (value[1]) return parseFloat(value[1]) / 100;
 return 1.0;
 }

 if (value == 'auto') {
 if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
 return element['offset' + style.capitalize()] + 'px';
 return null;
 }
 return value;
 };

 Element.Methods.setOpacity = function(element, value) {
 function stripAlpha(filter){
 return filter.replace(/alpha\([^\)]*\)/gi,'');
 }
 element = $(element);
 var currentStyle = element.currentStyle;
 if ((currentStyle && !currentStyle.hasLayout) ||
 (!currentStyle && element.style.zoom == 'normal'))
 element.style.zoom = 1;

 var filter = element.getStyle('filter'), style = element.style;
 if (value == 1 || value === '') {
 (filter = stripAlpha(filter)) ?
 style.filter = filter : style.removeAttribute('filter');
 return element;
 } else if (value < 0.00001) value = 0;
 style.filter = stripAlpha(filter) +
 'alpha(opacity=' + (value * 100) + ')';
 return element;
 };

 Element._attributeTranslations = {
 read: {
 names: {
 'class': 'className',
 'for': 'htmlFor'
 },
 values: {
 _getAttr: function(element, attribute) {
 return element.getAttribute(attribute, 2);
 },
 _getAttrNode: function(element, attribute) {
 var node = element.getAttributeNode(attribute);
 return node ? node.value : "";
 },
 _getEv: function(element, attribute) {
 attribute = element.getAttribute(attribute);
 return attribute ? attribute.toString().slice(23, -2) : null;
 },
 _flag: function(element, attribute) {
 return $(element).hasAttribute(attribute) ? attribute : null;
 },
 style: function(element) {
 return element.style.cssText.toLowerCase();
 },
 title: function(element) {
 return element.title;
 }
 }
 }
 };

 Element._attributeTranslations.write = {
 names: Object.extend({
 cellpadding: 'cellPadding',
 cellspacing: 'cellSpacing'
 }, Element._attributeTranslations.read.names),
 values: {
 checked: function(element, value) {
 element.checked = !!value;
 },

 style: function(element, value) {
 element.style.cssText = value ? value : '';
 }
 }
 };

 Element._attributeTranslations.has = {};

 $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
 'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
 Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
 Element._attributeTranslations.has[attr.toLowerCase()] = attr;
 });

 (function(v) {
 Object.extend(v, {
 href: v._getAttr,
 src: v._getAttr,
 type: v._getAttr,
 action: v._getAttrNode,
 disabled: v._flag,
 checked: v._flag,
 readonly: v._flag,
 multiple: v._flag,
 onload: v._getEv,
 onunload: v._getEv,
 onclick: v._getEv,
 ondblclick: v._getEv,
 onmousedown: v._getEv,
 onmouseup: v._getEv,
 onmouseover: v._getEv,
 onmousemove: v._getEv,
 onmouseout: v._getEv,
 onfocus: v._getEv,
 onblur: v._getEv,
 onkeypress: v._getEv,
 onkeydown: v._getEv,
 onkeyup: v._getEv,
 onsubmit: v._getEv,
 onreset: v._getEv,
 onselect: v._getEv,
 onchange: v._getEv
 });
 })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
 Element.Methods.setOpacity = function(element, value) {
 element = $(element);
 element.style.opacity = (value == 1) ? 0.999999 :
 (value === '') ? '' : (value < 0.00001) ? 0 : value;
 return element;
 };
}

else if (Prototype.Browser.WebKit) {
 Element.Methods.setOpacity = function(element, value) {
 element = $(element);
 element.style.opacity = (value == 1 || value === '') ? '' :
 (value < 0.00001) ? 0 : value;

 if (value == 1)
 if(element.tagName.toUpperCase() == 'IMG' && element.width) {
 element.width++; element.width--;
 } else try {
 var n = document.createTextNode(' ');
 element.appendChild(n);
 element.removeChild(n);
 } catch (e) { }

 return element;
 };

 // Safari returns margins on body which is incorrect if the child is absolutely
 // positioned. For performance reasons, redefine Element#cumulativeOffset for
 // KHTML/WebKit only.
 Element.Methods.cumulativeOffset = function(element) {
 var valueT = 0, valueL = 0;
 do {
 valueT += element.offsetTop || 0;
 valueL += element.offsetLeft || 0;
 if (element.offsetParent == document.body)
 if (Element.getStyle(element, 'position') == 'absolute') break;

 element = element.offsetParent;
 } while (element);

 return Element._returnOffset(valueL, valueT);
 };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
 // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
 Element.Methods.update = function(element, content) {
 element = $(element);

 if (content && content.toElement) content = content.toElement();
 if (Object.isElement(content)) return element.update().insert(content);

 content = Object.toHTML(content);
 var tagName = element.tagName.toUpperCase();

 if (tagName in Element._insertionTranslations.tags) {
 $A(element.childNodes).each(function(node) { element.removeChild(node) });
 Element._getContentFromAnonymousElement(tagName, content.stripScripts())
 .each(function(node) { element.appendChild(node) });
 }
 else element.innerHTML = content.stripScripts();

 content.evalScripts.bind(content).defer();
 return element;
 };
}

if ('outerHTML' in document.createElement('div')) {
 Element.Methods.replace = function(element, content) {
 element = $(element);

 if (content && content.toElement) content = content.toElement();
 if (Object.isElement(content)) {
 element.parentNode.replaceChild(content, element);
 return element;
 }

 content = Object.toHTML(content);
 var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

 if (Element._insertionTranslations.tags[tagName]) {
 var nextSibling = element.next();
 var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
 parent.removeChild(element);
 if (nextSibling)
 fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
 else
 fragments.each(function(node) { parent.appendChild(node) });
 }
 else element.outerHTML = content.stripScripts();

 content.evalScripts.bind(content).defer();
 return element;
 };
}

Element._returnOffset = function(l, t) {
 var result = [l, t];
 result.left = l;
 result.top = t;
 return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
 var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
 if (t) {
 div.innerHTML = t[0] + html + t[1];
 t[2].times(function() { div = div.firstChild });
 } else div.innerHTML = html;
 return $A(div.childNodes);
};

Element._insertionTranslations = {
 before: function(element, node) {
 element.parentNode.insertBefore(node, element);
 },
 top: function(element, node) {
 element.insertBefore(node, element.firstChild);
 },
 bottom: function(element, node) {
 element.appendChild(node);
 },
 after: function(element, node) {
 element.parentNode.insertBefore(node, element.nextSibling);
 },
 tags: {
 TABLE: ['<table>', '</table>', 1],
 TBODY: ['<table><tbody>', '</tbody></table>', 2],
 TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
 TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
 SELECT: ['<select>', '</select>', 1]
 }
};

(function() {
 Object.extend(this.tags, {
 THEAD: this.tags.TBODY,
 TFOOT: this.tags.TBODY,
 TH: this.tags.TD
 });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
 hasAttribute: function(element, attribute) {
 attribute = Element._attributeTranslations.has[attribute] || attribute;
 var node = $(element).getAttributeNode(attribute);
 return !!(node && node.specified);
 }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
 document.createElement('div')['__proto__']) {
 window.HTMLElement = { };
 window.HTMLElement.prototype = document.createElement('div')['__proto__'];
 Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
 if (Prototype.BrowserFeatures.SpecificElementExtensions)
 return Prototype.K;

 var Methods = { }, ByTag = Element.Methods.ByTag;

 var extend = Object.extend(function(element) {
 if (!element || element._extendedByPrototype ||
 element.nodeType != 1 || element == window) return element;

 var methods = Object.clone(Methods),
 tagName = element.tagName.toUpperCase(), property, value;

 // extend methods for specific tags
 if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

 for (property in methods) {
 value = methods[property];
 if (Object.isFunction(value) && !(property in element))
 element[property] = value.methodize();
 }

 element._extendedByPrototype = Prototype.emptyFunction;
 return element;

 }, {
 refresh: function() {
 // extend methods for all tags (Safari doesn't need this)
 if (!Prototype.BrowserFeatures.ElementExtensions) {
 Object.extend(Methods, Element.Methods);
 Object.extend(Methods, Element.Methods.Simulated);
 }
 }
 });

 extend.refresh();
 return extend;
})();

Element.hasAttribute = function(element, attribute) {
 if (element.hasAttribute) return element.hasAttribute(attribute);
 return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
 var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

 if (!methods) {
 Object.extend(Form, Form.Methods);
 Object.extend(Form.Element, Form.Element.Methods);
 Object.extend(Element.Methods.ByTag, {
 "FORM": Object.clone(Form.Methods),
 "INPUT": Object.clone(Form.Element.Methods),
 "SELECT": Object.clone(Form.Element.Methods),
 "TEXTAREA": Object.clone(Form.Element.Methods)
 });
 }

 if (arguments.length == 2) {
 var tagName = methods;
 methods = arguments[1];
 }

 if (!tagName) Object.extend(Element.Methods, methods || { });
 else {
 if (Object.isArray(tagName)) tagName.each(extend);
 else extend(tagName);
 }

 function extend(tagName) {
 tagName = tagName.toUpperCase();
 if (!Element.Methods.ByTag[tagName])
 Element.Methods.ByTag[tagName] = { };
 Object.extend(Element.Methods.ByTag[tagName], methods);
 }

 function copy(methods, destination, onlyIfAbsent) {
 onlyIfAbsent = onlyIfAbsent || false;
 for (var property in methods) {
 var value = methods[property];
 if (!Object.isFunction(value)) continue;
 if (!onlyIfAbsent || !(property in destination))
 destination[property] = value.methodize();
 }
 }

 function findDOMClass(tagName) {
 var klass;
 var trans = {
 "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
 "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
 "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
 "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
 "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
 "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
 "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
 "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
 "FrameSet", "IFRAME": "IFrame"
 };
 if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
 if (window[klass]) return window[klass];
 klass = 'HTML' + tagName + 'Element';
 if (window[klass]) return window[klass];
 klass = 'HTML' + tagName.capitalize() + 'Element';
 if (window[klass]) return window[klass];

 window[klass] = { };
 window[klass].prototype = document.createElement(tagName)['__proto__'];
 return window[klass];
 }

 if (F.ElementExtensions) {
 copy(Element.Methods, HTMLElement.prototype);
 copy(Element.Methods.Simulated, HTMLElement.prototype, true);
 }

 if (F.SpecificElementExtensions) {
 for (var tag in Element.Methods.ByTag) {
 var klass = findDOMClass(tag);
 if (Object.isUndefined(klass)) continue;
 copy(T[tag], klass.prototype);
 }
 }

 Object.extend(Element, Element.Methods);
 delete Element.ByTag;

 if (Element.extend.refresh) Element.extend.refresh();
 Element.cache = { };
};

document.viewport = {
 getDimensions: function() {
 var dimensions = { }, B = Prototype.Browser;
 $w('width height').each(function(d) {
 var D = d.capitalize();
 if (B.WebKit && !document.evaluate) {
 // Safari <3.0 needs self.innerWidth/Height
 dimensions[d] = self['inner' + D];
 } else if (B.Opera && parseFloat(window.opera.version()) < 9.5) {
 // Opera <9.5 needs document.body.clientWidth/Height
 dimensions[d] = document.body['client' + D]
 } else {
 dimensions[d] = document.documentElement['client' + D];
 }
 });
 return dimensions;
 },

 getWidth: function() {
 return this.getDimensions().width;
 },

 getHeight: function() {
 return this.getDimensions().height;
 },

 getScrollOffsets: function() {
 return Element._returnOffset(
 window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
 window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
 }
};
/* Portions of the Selector class are derived from Jack Slocum's DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license. Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
 initialize: function(expression) {
 this.expression = expression.strip();

 if (this.shouldUseSelectorsAPI()) {
 this.mode = 'selectorsAPI';
 } else if (this.shouldUseXPath()) {
 this.mode = 'xpath';
 this.compileXPathMatcher();
 } else {
 this.mode = "normal";
 this.compileMatcher();
 }

 },

 shouldUseXPath: function() {
 if (!Prototype.BrowserFeatures.XPath) return false;

 var e = this.expression;

 // Safari 3 chokes on :*-of-type and :empty
 if (Prototype.Browser.WebKit &&
 (e.include("-of-type") || e.include(":empty")))
 return false;

 // XPath can't do namespaced attributes, nor can it read
 // the "checked" property from DOM nodes
 if ((/(\[[\w-]*?:|:checked)/).test(e))
 return false;

 return true;
 },

 shouldUseSelectorsAPI: function() {
 if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

 if (!Selector._div) Selector._div = new Element('div');

 // Make sure the browser treats the selector as valid. Test on an
 // isolated element to minimize cost of this check.
 try {
 Selector._div.querySelector(this.expression);
 } catch(e) {
 return false;
 }

 return true;
 },

 compileMatcher: function() {
 var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
 c = Selector.criteria, le, p, m;

 if (Selector._cache[e]) {
 this.matcher = Selector._cache[e];
 return;
 }

 this.matcher = ["this.matcher = function(root) {",
 "var r = root, h = Selector.handlers, c = false, n;"];

 while (e && le != e && (/\S/).test(e)) {
 le = e;
 for (var i in ps) {
 p = ps[i];
 if (m = e.match(p)) {
 this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
 new Template(c[i]).evaluate(m));
 e = e.replace(m[0], '');
 break;
 }
 }
 }

 this.matcher.push("return h.unique(n);\n}");
 eval(this.matcher.join('\n'));
 Selector._cache[this.expression] = this.matcher;
 },

 compileXPathMatcher: function() {
 var e = this.expression, ps = Selector.patterns,
 x = Selector.xpath, le, m;

 if (Selector._cache[e]) {
 this.xpath = Selector._cache[e]; return;
 }

 this.matcher = ['.//*'];
 while (e && le != e && (/\S/).test(e)) {
 le = e;
 for (var i in ps) {
 if (m = e.match(ps[i])) {
 this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
 new Template(x[i]).evaluate(m));
 e = e.replace(m[0], '');
 break;
 }
 }
 }

 this.xpath = this.matcher.join('');
 Selector._cache[this.expression] = this.xpath;
 },

 findElements: function(root) {
 root = root || document;
 var e = this.expression, results;

 switch (this.mode) {
 case 'selectorsAPI':
 // querySelectorAll queries document-wide, then filters to descendants
 // of the context element. That's not what we want.
 // Add an explicit context to the selector if necessary.
 if (root !== document) {
 var oldId = root.id, id = $(root).identify();
 e = "#" + id + " " + e;
 }

 results = $A(root.querySelectorAll(e)).map(Element.extend);
 root.id = oldId;

 return results;
 case 'xpath':
 return document._getElementsByXPath(this.xpath, root);
 default:
 return this.matcher(root);
 }
 },

 match: function(element) {
 this.tokens = [];

 var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
 var le, p, m;

 while (e && le !== e && (/\S/).test(e)) {
 le = e;
 for (var i in ps) {
 p = ps[i];
 if (m = e.match(p)) {
 // use the Selector.assertions methods unless the selector
 // is too complex.
 if (as[i]) {
 this.tokens.push([i, Object.clone(m)]);
 e = e.replace(m[0], '');
 } else {
 // reluctantly do a document-wide search
 // and look for a match in the array
 return this.findElements(document).include(element);
 }
 }
 }
 }

 var match = true, name, matches;
 for (var i = 0, token; token = this.tokens[i]; i++) {
 name = token[0], matches = token[1];
 if (!Selector.assertions[name](element, matches)) {
 match = false; break;
 }
 }

 return match;
 },

 toString: function() {
 return this.expression;
 },

 inspect: function() {
 return "#<Selector:" + this.expression.inspect() + ">";
 }
});

Object.extend(Selector, {
 _cache: { },

 xpath: {
 descendant: "//*",
 child: "/*",
 adjacent: "/following-sibling::*[1]",
 laterSibling: '/following-sibling::*',
 tagName: function(m) {
 if (m[1] == '*') return '';
 return "[local-name()='" + m[1].toLowerCase() +
 "' or local-name()='" + m[1].toUpperCase() + "']";
 },
 className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
 id: "[@id='#{1}']",
 attrPresence: function(m) {
 m[1] = m[1].toLowerCase();
 return new Template("[@#{1}]").evaluate(m);
 },
 attr: function(m) {
 m[1] = m[1].toLowerCase();
 m[3] = m[5] || m[6];
 return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
 },
 pseudo: function(m) {
 var h = Selector.xpath.pseudos[m[1]];
 if (!h) return '';
 if (Object.isFunction(h)) return h(m);
 return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
 },
 operators: {
 '=': "[@#{1}='#{3}']",
 '!=': "[@#{1}!='#{3}']",
 '^=': "[starts-with(@#{1}, '#{3}')]",
 '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
 '*=': "[contains(@#{1}, '#{3}')]",
 '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
 '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
 },
 pseudos: {
 'first-child': '[not(preceding-sibling::*)]',
 'last-child': '[not(following-sibling::*)]',
 'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
 'empty': "[count(*) = 0 and (count(text()) = 0)]",
 'checked': "[@checked]",
 'disabled': "[(@disabled) and (@type!='hidden')]",
 'enabled': "[not(@disabled) and (@type!='hidden')]",
 'not': function(m) {
 var e = m[6], p = Selector.patterns,
 x = Selector.xpath, le, v;

 var exclusion = [];
 while (e && le != e && (/\S/).test(e)) {
 le = e;
 for (var i in p) {
 if (m = e.match(p[i])) {
 v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
 exclusion.push("(" + v.substring(1, v.length - 1) + ")");
 e = e.replace(m[0], '');
 break;
 }
 }
 }
 return "[not(" + exclusion.join(" and ") + ")]";
 },
 'nth-child': function(m) {
 return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
 },
 'nth-last-child': function(m) {
 return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
 },
 'nth-of-type': function(m) {
 return Selector.xpath.pseudos.nth("position() ", m);
 },
 'nth-last-of-type': function(m) {
 return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
 },
 'first-of-type': function(m) {
 m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
 },
 'last-of-type': function(m) {
 m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
 },
 'only-of-type': function(m) {
 var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
 },
 nth: function(fragment, m) {
 var mm, formula = m[6], predicate;
 if (formula == 'even') formula = '2n+0';
 if (formula == 'odd') formula = '2n+1';
 if (mm = formula.match(/^(\d+)$/)) // digit only
 return '[' + fragment + "= " + mm[1] + ']';
 if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
 if (mm[1] == "-") mm[1] = -1;
 var a = mm[1] ? Number(mm[1]) : 1;
 var b = mm[2] ? Number(mm[2]) : 0;
 predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
 "((#{fragment} - #{b}) div #{a} >= 0)]";
 return new Template(predicate).evaluate({
 fragment: fragment, a: a, b: b });
 }
 }
 }
 },

 criteria: {
 tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;',
 className: 'n = h.className(n, r, "#{1}", c); c = false;',
 id: 'n = h.id(n, r, "#{1}", c); c = false;',
 attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
 attr: function(m) {
 m[3] = (m[5] || m[6]);
 return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
 },
 pseudo: function(m) {
 if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
 return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
 },
 descendant: 'c = "descendant";',
 child: 'c = "child";',
 adjacent: 'c = "adjacent";',
 laterSibling: 'c = "laterSibling";'
 },

 patterns: {
 // combinators must be listed first
 // (and descendant needs to be last combinator)
 laterSibling: /^\s*~\s*/,
 child: /^\s*>\s*/,
 adjacent: /^\s*\+\s*/,
 descendant: /^\s/,

 // selectors follow
 tagName: /^\s*(\*|[\w\-]+)(\b|$)?/,
 id: /^#([\w\-\*]+)(\b|$)/,
 className: /^\.([\w\-\*]+)(\b|$)/,
 pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
 attrPresence: /^\[((?:[\w]+:)?[\w]+)\]/,
 attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
 },

 // for Selector.match and Element#match
 assertions: {
 tagName: function(element, matches) {
 return matches[1].toUpperCase() == element.tagName.toUpperCase();
 },

 className: function(element, matches) {
 return Element.hasClassName(element, matches[1]);
 },

 id: function(element, matches) {
 return element.id === matches[1];
 },

 attrPresence: function(element, matches) {
 return Element.hasAttribute(element, matches[1]);
 },

 attr: function(element, matches) {
 var nodeValue = Element.readAttribute(element, matches[1]);
 return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
 }
 },

 handlers: {
 // UTILITY FUNCTIONS
 // joins two collections
 concat: function(a, b) {
 for (var i = 0, node; node = b[i]; i++)
 a.push(node);
 return a;
 },

 // marks an array of nodes for counting
 mark: function(nodes) {
 var _true = Prototype.emptyFunction;
 for (var i = 0, node; node = nodes[i]; i++)
 node._countedByPrototype = _true;
 return nodes;
 },

 unmark: function(nodes) {
 for (var i = 0, node; node = nodes[i]; i++)
 node._countedByPrototype = undefined;
 return nodes;
 },

 // mark each child node with its position (for nth calls)
 // "ofType" flag indicates whether we're indexing for nth-of-type
 // rather than nth-child
 index: function(parentNode, reverse, ofType) {
 parentNode._countedByPrototype = Prototype.emptyFunction;
 if (reverse) {
 for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
 var node = nodes[i];
 if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
 }
 } else {
 for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
 if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
 }
 },

 // filters out duplicates and extends all nodes
 unique: function(nodes) {
 if (nodes.length == 0) return nodes;
 var results = [], n;
 for (var i = 0, l = nodes.length; i < l; i++)
 if (!(n = nodes[i])._countedByPrototype) {
 n._countedByPrototype = Prototype.emptyFunction;
 results.push(Element.extend(n));
 }
 return Selector.handlers.unmark(results);
 },

 // COMBINATOR FUNCTIONS
 descendant: function(nodes) {
 var h = Selector.handlers;
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 h.concat(results, node.getElementsByTagName('*'));
 return results;
 },

 child: function(nodes) {
 var h = Selector.handlers;
 for (var i = 0, results = [], node; node = nodes[i]; i++) {
 for (var j = 0, child; child = node.childNodes[j]; j++)
 if (child.nodeType == 1 && child.tagName != '!') results.push(child);
 }
 return results;
 },

 adjacent: function(nodes) {
 for (var i = 0, results = [], node; node = nodes[i]; i++) {
 var next = this.nextElementSibling(node);
 if (next) results.push(next);
 }
 return results;
 },

 laterSibling: function(nodes) {
 var h = Selector.handlers;
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 h.concat(results, Element.nextSiblings(node));
 return results;
 },

 nextElementSibling: function(node) {
 while (node = node.nextSibling)
 if (node.nodeType == 1) return node;
 return null;
 },

 previousElementSibling: function(node) {
 while (node = node.previousSibling)
 if (node.nodeType == 1) return node;
 return null;
 },

 // TOKEN FUNCTIONS
 tagName: function(nodes, root, tagName, combinator) {
 var uTagName = tagName.toUpperCase();
 var results = [], h = Selector.handlers;
 if (nodes) {
 if (combinator) {
 // fastlane for ordinary descendant combinators
 if (combinator == "descendant") {
 for (var i = 0, node; node = nodes[i]; i++)
 h.concat(results, node.getElementsByTagName(tagName));
 return results;
 } else nodes = this[combinator](nodes);
 if (tagName == "*") return nodes;
 }
 for (var i = 0, node; node = nodes[i]; i++)
 if (node.tagName.toUpperCase() === uTagName) results.push(node);
 return results;
 } else return root.getElementsByTagName(tagName);
 },

 id: function(nodes, root, id, combinator) {
 var targetNode = $(id), h = Selector.handlers;
 if (!targetNode) return [];
 if (!nodes && root == document) return [targetNode];
 if (nodes) {
 if (combinator) {
 if (combinator == 'child') {
 for (var i = 0, node; node = nodes[i]; i++)
 if (targetNode.parentNode == node) return [targetNode];
 } else if (combinator == 'descendant') {
 for (var i = 0, node; node = nodes[i]; i++)
 if (Element.descendantOf(targetNode, node)) return [targetNode];
 } else if (combinator == 'adjacent') {
 for (var i = 0, node; node = nodes[i]; i++)
 if (Selector.handlers.previousElementSibling(targetNode) == node)
 return [targetNode];
 } else nodes = h[combinator](nodes);
 }
 for (var i = 0, node; node = nodes[i]; i++)
 if (node == targetNode) return [targetNode];
 return [];
 }
 return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
 },

 className: function(nodes, root, className, combinator) {
 if (nodes && combinator) nodes = this[combinator](nodes);
 return Selector.handlers.byClassName(nodes, root, className);
 },

 byClassName: function(nodes, root, className) {
 if (!nodes) nodes = Selector.handlers.descendant([root]);
 var needle = ' ' + className + ' ';
 for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
 nodeClassName = node.className;
 if (nodeClassName.length == 0) continue;
 if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
 results.push(node);
 }
 return results;
 },

 attrPresence: function(nodes, root, attr, combinator) {
 if (!nodes) nodes = root.getElementsByTagName("*");
 if (nodes && combinator) nodes = this[combinator](nodes);
 var results = [];
 for (var i = 0, node; node = nodes[i]; i++)
 if (Element.hasAttribute(node, attr)) results.push(node);
 return results;
 },

 attr: function(nodes, root, attr, value, operator, combinator) {
 if (!nodes) nodes = root.getElementsByTagName("*");
 if (nodes && combinator) nodes = this[combinator](nodes);
 var handler = Selector.operators[operator], results = [];
 for (var i = 0, node; node = nodes[i]; i++) {
 var nodeValue = Element.readAttribute(node, attr);
 if (nodeValue === null) continue;
 if (handler(nodeValue, value)) results.push(node);
 }
 return results;
 },

 pseudo: function(nodes, name, value, root, combinator) {
 if (nodes && combinator) nodes = this[combinator](nodes);
 if (!nodes) nodes = root.getElementsByTagName("*");
 return Selector.pseudos[name](nodes, value, root);
 }
 },

 pseudos: {
 'first-child': function(nodes, value, root) {
 for (var i = 0, results = [], node; node = nodes[i]; i++) {
 if (Selector.handlers.previousElementSibling(node)) continue;
 results.push(node);
 }
 return results;
 },
 'last-child': function(nodes, value, root) {
 for (var i = 0, results = [], node; node = nodes[i]; i++) {
 if (Selector.handlers.nextElementSibling(node)) continue;
 results.push(node);
 }
 return results;
 },
 'only-child': function(nodes, value, root) {
 var h = Selector.handlers;
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
 results.push(node);
 return results;
 },
 'nth-child': function(nodes, formula, root) {
 return Selector.pseudos.nth(nodes, formula, root);
 },
 'nth-last-child': function(nodes, formula, root) {
 return Selector.pseudos.nth(nodes, formula, root, true);
 },
 'nth-of-type': function(nodes, formula, root) {
 return Selector.pseudos.nth(nodes, formula, root, false, true);
 },
 'nth-last-of-type': function(nodes, formula, root) {
 return Selector.pseudos.nth(nodes, formula, root, true, true);
 },
 'first-of-type': function(nodes, formula, root) {
 return Selector.pseudos.nth(nodes, "1", root, false, true);
 },
 'last-of-type': function(nodes, formula, root) {
 return Selector.pseudos.nth(nodes, "1", root, true, true);
 },
 'only-of-type': function(nodes, formula, root) {
 var p = Selector.pseudos;
 return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
 },

 // handles the an+b logic
 getIndices: function(a, b, total) {
 if (a == 0) return b > 0 ? [b] : [];
 return $R(1, total).inject([], function(memo, i) {
 if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
 return memo;
 });
 },

 // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
 nth: function(nodes, formula, root, reverse, ofType) {
 if (nodes.length == 0) return [];
 if (formula == 'even') formula = '2n+0';
 if (formula == 'odd') formula = '2n+1';
 var h = Selector.handlers, results = [], indexed = [], m;
 h.mark(nodes);
 for (var i = 0, node; node = nodes[i]; i++) {
 if (!node.parentNode._countedByPrototype) {
 h.index(node.parentNode, reverse, ofType);
 indexed.push(node.parentNode);
 }
 }
 if (formula.match(/^\d+$/)) { // just a number
 formula = Number(formula);
 for (var i = 0, node; node = nodes[i]; i++)
 if (node.nodeIndex == formula) results.push(node);
 } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
 if (m[1] == "-") m[1] = -1;
 var a = m[1] ? Number(m[1]) : 1;
 var b = m[2] ? Number(m[2]) : 0;
 var indices = Selector.pseudos.getIndices(a, b, nodes.length);
 for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
 for (var j = 0; j < l; j++)
 if (node.nodeIndex == indices[j]) results.push(node);
 }
 }
 h.unmark(nodes);
 h.unmark(indexed);
 return results;
 },

 'empty': function(nodes, value, root) {
 for (var i = 0, results = [], node; node = nodes[i]; i++) {
 // IE treats comments as element nodes
 if (node.tagName == '!' || node.firstChild) continue;
 results.push(node);
 }
 return results;
 },

 'not': function(nodes, selector, root) {
 var h = Selector.handlers, selectorType, m;
 var exclusions = new Selector(selector).findElements(root);
 h.mark(exclusions);
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 if (!node._countedByPrototype) results.push(node);
 h.unmark(exclusions);
 return results;
 },

 'enabled': function(nodes, value, root) {
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 if (!node.disabled && (!node.type || node.type !== 'hidden'))
 results.push(node);
 return results;
 },

 'disabled': function(nodes, value, root) {
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 if (node.disabled) results.push(node);
 return results;
 },

 'checked': function(nodes, value, root) {
 for (var i = 0, results = [], node; node = nodes[i]; i++)
 if (node.checked) results.push(node);
 return results;
 }
 },

 operators: {
 '=': function(nv, v) { return nv == v; },
 '!=': function(nv, v) { return nv != v; },
 '^=': function(nv, v) { return nv == v || nv && nv.startsWith(v); },
 '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
 '*=': function(nv, v) { return nv == v || nv && nv.include(v); },
 '$=': function(nv, v) { return nv.endsWith(v); },
 '*=': function(nv, v) { return nv.include(v); },
 '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
 '|=': function(nv, v) { return ('-' + (nv || "").toUpperCase() +
 '-').include('-' + (v || "").toUpperCase() + '-'); }
 },

 split: function(expression) {
 var expressions = [];
 expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
 expressions.push(m[1].strip());
 });
 return expressions;
 },

 matchElements: function(elements, expression) {
 var matches = $$(expression), h = Selector.handlers;
 h.mark(matches);
 for (var i = 0, results = [], element; element = elements[i]; i++)
 if (element._countedByPrototype) results.push(element);
 h.unmark(matches);
 return results;
 },

 findElement: function(elements, expression, index) {
 if (Object.isNumber(expression)) {
 index = expression; expression = false;
 }
 return Selector.matchElements(elements, expression || '*')[index || 0];
 },

 findChildElements: function(element, expressions) {
 expressions = Selector.split(expressions.join(','));
 var results = [], h = Selector.handlers;
 for (var i = 0, l = expressions.length, selector; i < l; i++) {
 selector = new Selector(expressions[i].strip());
 h.concat(results, selector.findElements(element));
 }
 return (l > 1) ? h.unique(results) : results;
 }
});

if (Prototype.Browser.IE) {
 Object.extend(Selector.handlers, {
 // IE returns comment nodes on getElementsByTagName("*").
 // Filter them out.
 concat: function(a, b) {
 for (var i = 0, node; node = b[i]; i++)
 if (node.tagName !== "!") a.push(node);
 return a;
 },

 // IE improperly serializes _countedByPrototype in (inner|outer)HTML.
 unmark: function(nodes) {
 for (var i = 0, node; node = nodes[i]; i++)
 node.removeAttribute('_countedByPrototype');
 return nodes;
 }
 });
}

function $$() {
 return Selector.findChildElements(document, $A(arguments));
}
var Form = {
 reset: function(form) {
 $(form).reset();
 return form;
 },

 serializeElements: function(elements, options) {
 if (typeof options != 'object') options = { hash: !!options };
 else if (Object.isUndefined(options.hash)) options.hash = true;
 var key, value, submitted = false, submit = options.submit;

 var data = elements.inject({ }, function(result, element) {
 if (!element.disabled && element.name) {
 key = element.name; value = $(element).getValue();
 if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
 submit !== false && (!submit || key == submit) && (submitted = true)))) {
 if (key in result) {
 // a key is already present; construct an array of values
 if (!Object.isArray(result[key])) result[key] = [result[key]];
 result[key].push(value);
 }
 else result[key] = value;
 }
 }
 return result;
 });

 return options.hash ? data : Object.toQueryString(data);
 }
};

Form.Methods = {
 serialize: function(form, options) {
 return Form.serializeElements(Form.getElements(form), options);
 },

 getElements: function(form) {
 return $A($(form).getElementsByTagName('*')).inject([],
 function(elements, child) {
 if (Form.Element.Serializers[child.tagName.toLowerCase()])
 elements.push(Element.extend(child));
 return elements;
 }
 );
 },

 getInputs: function(form, typeName, name) {
 form = $(form);
 var inputs = form.getElementsByTagName('input');

 if (!typeName && !name) return $A(inputs).map(Element.extend);

 for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
 var input = inputs[i];
 if ((typeName && input.type != typeName) || (name && input.name != name))
 continue;
 matchingInputs.push(Element.extend(input));
 }

 return matchingInputs;
 },

 disable: function(form) {
 form = $(form);
 Form.getElements(form).invoke('disable');
 return form;
 },

 enable: function(form) {
 form = $(form);
 Form.getElements(form).invoke('enable');
 return form;
 },

 findFirstElement: function(form) {
 var elements = $(form).getElements().findAll(function(element) {
 return 'hidden' != element.type && !element.disabled;
 });
 var firstByIndex = elements.findAll(function(element) {
 return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
 }).sortBy(function(element) { return element.tabIndex }).first();

 return firstByIndex ? firstByIndex : elements.find(function(element) {
 return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
 });
 },

 focusFirstElement: function(form) {
 form = $(form);
 form.findFirstElement().activate();
 return form;
 },

 request: function(form, options) {
 form = $(form), options = Object.clone(options || { });

 var params = options.parameters, action = form.readAttribute('action') || '';
 if (action.blank()) action = window.location.href;
 options.parameters = form.serialize(true);

 if (params) {
 if (Object.isString(params)) params = params.toQueryParams();
 Object.extend(options.parameters, params);
 }

 if (form.hasAttribute('method') && !options.method)
 options.method = form.method;

 return new Ajax.Request(action, options);
 }
};

/*--------------------------------------------------------------------------*/

Form.Element = {
 focus: function(element) {
 $(element).focus();
 return element;
 },

 select: function(element) {
 $(element).select();
 return element;
 }
};

Form.Element.Methods = {
 serialize: function(element) {
 element = $(element);
 if (!element.disabled && element.name) {
 var value = element.getValue();
 if (value != undefined) {
 var pair = { };
 pair[element.name] = value;
 return Object.toQueryString(pair);
 }
 }
 return '';
 },

 getValue: function(element) {
 element = $(element);
 var method = element.tagName.toLowerCase();
 return Form.Element.Serializers[method](element);
 },

 setValue: function(element, value) {
 element = $(element);
 var method = element.tagName.toLowerCase();
 Form.Element.Serializers[method](element, value);
 return element;
 },

 clear: function(element) {
 $(element).value = '';
 return element;
 },

 present: function(element) {
 return $(element).value != '';
 },

 activate: function(element) {
 element = $(element);
 try {
 element.focus();
 if (element.select && (element.tagName.toLowerCase() != 'input' ||
 !['button', 'reset', 'submit'].include(element.type)))
 element.select();
 } catch (e) { }
 return element;
 },

 disable: function(element) {
 element = $(element);
 element.disabled = true;
 return element;
 },

 enable: function(element) {
 element = $(element);
 element.disabled = false;
 return element;
 }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;
var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
 input: function(element, value) {
 switch (element.type.toLowerCase()) {
 case 'checkbox':
 case 'radio':
 return Form.Element.Serializers.inputSelector(element, value);
 default:
 return Form.Element.Serializers.textarea(element, value);
 }
 },

 inputSelector: function(element, value) {
 if (Object.isUndefined(value)) return element.checked ? element.value : null;
 else element.checked = !!value;
 },

 textarea: function(element, value) {
 if (Object.isUndefined(value)) return element.value;
 else element.value = value;
 },

 select: function(element, value) {
 if (Object.isUndefined(value))
 return this[element.type == 'select-one' ?
 'selectOne' : 'selectMany'](element);
 else {
 var opt, currentValue, single = !Object.isArray(value);
 for (var i = 0, length = element.length; i < length; i++) {
 opt = element.options[i];
 currentValue = this.optionValue(opt);
 if (single) {
 if (currentValue == value) {
 opt.selected = true;
 return;
 }
 }
 else opt.selected = value.include(currentValue);
 }
 }
 },

 selectOne: function(element) {
 var index = element.selectedIndex;
 return index >= 0 ? this.optionValue(element.options[index]) : null;
 },

 selectMany: function(element) {
 var values, length = element.length;
 if (!length) return null;

 for (var i = 0, values = []; i < length; i++) {
 var opt = element.options[i];
 if (opt.selected) values.push(this.optionValue(opt));
 }
 return values;
 },

 optionValue: function(opt) {
 // extend element because hasAttribute may not be native
 return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
 }
};

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
 initialize: function($super, element, frequency, callback) {
 $super(callback, frequency);
 this.element = $(element);
 this.lastValue = this.getValue();
 },

 execute: function() {
 var value = this.getValue();
 if (Object.isString(this.lastValue) && Object.isString(value) ?
 this.lastValue != value : String(this.lastValue) != String(value)) {
 this.callback(this.element, value);
 this.lastValue = value;
 }
 }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
 getValue: function() {
 return Form.Element.getValue(this.element);
 }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
 getValue: function() {
 return Form.serialize(this.element);
 }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
 initialize: function(element, callback) {
 this.element = $(element);
 this.callback = callback;

 this.lastValue = this.getValue();
 if (this.element.tagName.toLowerCase() == 'form')
 this.registerFormCallbacks();
 else
 this.registerCallback(this.element);
 },

 onElementEvent: function() {
 var value = this.getValue();
 if (this.lastValue != value) {
 this.callback(this.element, value);
 this.lastValue = value;
 }
 },

 registerFormCallbacks: function() {
 Form.getElements(this.element).each(this.registerCallback, this);
 },

 registerCallback: function(element) {
 if (element.type) {
 switch (element.type.toLowerCase()) {
 case 'checkbox':
 case 'radio':
 Event.observe(element, 'click', this.onElementEvent.bind(this));
 break;
 default:
 Event.observe(element, 'change', this.onElementEvent.bind(this));
 break;
 }
 }
 }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
 getValue: function() {
 return Form.Element.getValue(this.element);
 }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
 getValue: function() {
 return Form.serialize(this.element);
 }
});
if (!window.Event) var Event = { };

Object.extend(Event, {
 KEY_BACKSPACE: 8,
 KEY_TAB: 9,
 KEY_RETURN: 13,
 KEY_ESC: 27,
 KEY_LEFT: 37,
 KEY_UP: 38,
 KEY_RIGHT: 39,
 KEY_DOWN: 40,
 KEY_DELETE: 46,
 KEY_HOME: 36,
 KEY_END: 35,
 KEY_PAGEUP: 33,
 KEY_PAGEDOWN: 34,
 KEY_INSERT: 45,

 cache: { },

 relatedTarget: function(event) {
 var element;
 switch(event.type) {
 case 'mouseover': element = event.fromElement; break;
 case 'mouseout': element = event.toElement; break;
 default: return null;
 }
 return Element.extend(element);
 }
});

Event.Methods = (function() {
 var isButton;

 if (Prototype.Browser.IE) {
 var buttonMap = { 0: 1, 1: 4, 2: 2 };
 isButton = function(event, code) {
 return event.button == buttonMap[code];
 };

 } else if (Prototype.Browser.WebKit) {
 isButton = function(event, code) {
 switch (code) {
 case 0: return event.which == 1 && !event.metaKey;
 case 1: return event.which == 1 && event.metaKey;
 default: return false;
 }
 };

 } else {
 isButton = function(event, code) {
 return event.which ? (event.which === code + 1) : (event.button === code);
 };
 }

 return {
 isLeftClick: function(event) { return isButton(event, 0) },
 isMiddleClick: function(event) { return isButton(event, 1) },
 isRightClick: function(event) { return isButton(event, 2) },

 element: function(event) {
 event = Event.extend(event);

 var node = event.target,
 type = event.type,
 currentTarget = event.currentTarget;

 if (currentTarget && currentTarget.tagName) {
 // Firefox screws up the "click" event when moving between radio buttons
 // via arrow keys. It also screws up the "load" and "error" events on images,
 // reporting the document as the target instead of the original image.
 if (type === 'load' || type === 'error' ||
 (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
 && currentTarget.type === 'radio'))
 node = currentTarget;
 }
 if (node) {
 if (node.nodeType == Node.TEXT_NODE) node = node.parentNode;
 return Element.extend(node);
 } else return false;
 },

 findElement: function(event, expression) {
 var element = Event.element(event);
 if (!expression) return element;
 var elements = [element].concat(element.ancestors());
 return Selector.findElement(elements, expression, 0);
 },

 pointer: function(event) {
 var docElement = document.documentElement,
 body = document.body || { scrollLeft: 0, scrollTop: 0 };
 return {
 x: event.pageX || (event.clientX +
 (docElement.scrollLeft || body.scrollLeft) -
 (docElement.clientLeft || 0)),
 y: event.pageY || (event.clientY +
 (docElement.scrollTop || body.scrollTop) -
 (docElement.clientTop || 0))
 };
 },

 pointerX: function(event) { return Event.pointer(event).x },
 pointerY: function(event) { return Event.pointer(event).y },

 stop: function(event) {
 Event.extend(event);
 event.preventDefault();
 event.stopPropagation();
 event.stopped = true;
 }
 };
})();

Event.extend = (function() {
 var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
 m[name] = Event.Methods[name].methodize();
 return m;
 });

 if (Prototype.Browser.IE) {
 Object.extend(methods, {
 stopPropagation: function() { this.cancelBubble = true },
 preventDefault: function() { this.returnValue = false },
 inspect: function() { return "[object Event]" }
 });

 return function(event) {
 if (!event) return false;
 if (event._extendedByPrototype) return event;

 event._extendedByPrototype = Prototype.emptyFunction;
 var pointer = Event.pointer(event);
 Object.extend(event, {
 target: event.srcElement,
 relatedTarget: Event.relatedTarget(event),
 pageX: pointer.x,
 pageY: pointer.y
 });
 return Object.extend(event, methods);
 };

 } else {
 Event.prototype = Event.prototype || document.createEvent("HTMLEvents")['__proto__'];
 Object.extend(Event.prototype, methods);
 return Prototype.K;
 }
})();

Object.extend(Event, (function() {
 var cache = Event.cache;

 function getEventID(element) {
 try {
 if (element._prototypeEventID) return element._prototypeEventID[0];
 arguments.callee.id = arguments.callee.id || 1;
 return element._prototypeEventID = [++arguments.callee.id];
 } catch (error) {
 return false;
 }
 }

 function getDOMEventName(eventName) {
 if (eventName && eventName.include(':')) return "dataavailable";
 return eventName;
 }

 function getCacheForID(id) {
 return cache[id] = cache[id] || { };
 }

 function getWrappersForEventName(id, eventName) {
 var c = getCacheForID(id);
 return c[eventName] = c[eventName] || [];
 }

 function createWrapper(element, eventName, handler) {
 var id = getEventID(element);
 var c = getWrappersForEventName(id, eventName);
 if (c.pluck("handler").include(handler)) return false;

 var wrapper = function(event) {
 if (!Event || !Event.extend ||
 (event.eventName && event.eventName != eventName))
 return false;

 Event.extend(event);
 handler.call(element, event);
 };

 wrapper.handler = handler;
 c.push(wrapper);
 return wrapper;
 }

 function findWrapper(id, eventName, handler) {
 var c = getWrappersForEventName(id, eventName);
 return c.find(function(wrapper) { return wrapper.handler == handler });
 }

 function destroyWrapper(id, eventName, handler) {
 var c = getCacheForID(id);
 if (!c[eventName]) return false;
 c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
 }

 function destroyCache() {
 for (var id in cache)
 for (var eventName in cache[id])
 cache[id][eventName] = null;
 }


 // Internet Explorer needs to remove event handlers on page unload
 // in order to avoid memory leaks.
 if (window.attachEvent) {
 window.attachEvent("onunload", destroyCache);
 }

 // Safari has a dummy event handler on page unload so that it won't
 // use its bfcache. Safari <= 3.1 has an issue with restoring the "document"
 // object when page is returned to via the back button using its bfcache.
 if (Prototype.Browser.WebKit) {
 window.addEventListener('unload', Prototype.emptyFunction, false);
 }

 return {
 observe: function(element, eventName, handler) {
 element = $(element);
 var name = getDOMEventName(eventName);

 var wrapper = createWrapper(element, eventName, handler);
 if (!wrapper) return element;

 if (element.addEventListener) {
 element.addEventListener(name, wrapper, false);
 } else {
 element.attachEvent("on" + name, wrapper);
 }

 return element;
 },

 stopObserving: function(element, eventName, handler) {
 element = $(element);
 var id = getEventID(element), name = getDOMEventName(eventName);

 if (!handler && eventName) {
 getWrappersForEventName(id, eventName).each(function(wrapper) {
 element.stopObserving(eventName, wrapper.handler);
 });
 return element;

 } else if (!eventName) {
 Object.keys(getCacheForID(id)).each(function(eventName) {
 element.stopObserving(eventName);
 });
 return element;
 }

 var wrapper = findWrapper(id, eventName, handler);
 if (!wrapper) return element;

 if (element.removeEventListener) {
 element.removeEventListener(name, wrapper, false);
 } else {
 element.detachEvent("on" + name, wrapper);
 }

 destroyWrapper(id, eventName, handler);

 return element;
 },

 fire: function(element, eventName, memo) {
 element = $(element);
 if (element == document && document.createEvent && !element.dispatchEvent)
 element = document.documentElement;

 var event;
 if (document.createEvent) {
 event = document.createEvent("HTMLEvents");
 event.initEvent("dataavailable", true, true);
 } else {
 event = document.createEventObject();
 event.eventType = "ondataavailable";
 }

 event.eventName = eventName;
 event.memo = memo || { };

 if (document.createEvent) {
 element.dispatchEvent(event);
 } else {
 element.fireEvent(event.eventType, event);
 }

 return Event.extend(event);
 }
 };
})());

Object.extend(Event, Event.Methods);

Element.addMethods({
 fire: Event.fire,
 observe: Event.observe,
 stopObserving: Event.stopObserving
});

Object.extend(document, {
 fire: Element.Methods.fire.methodize(),
 observe: Element.Methods.observe.methodize(),
 stopObserving: Element.Methods.stopObserving.methodize(),
 loaded: false
});

(function() {
 /* Support for the DOMContentLoaded event is based on work by Dan Webb,
 Matthias Miller, Dean Edwards and John Resig. */

 var timer;

 function fireContentLoadedEvent() {
 if (document.loaded) return;
 if (timer) window.clearInterval(timer);
 document.fire("dom:loaded");
 document.loaded = true;
 }

 if (document.addEventListener) {
 if (Prototype.Browser.WebKit) {
 timer = window.setInterval(function() {
 if (/loaded|complete/.test(document.readyState))
 fireContentLoadedEvent();
 }, 0);

 Event.observe(window, "load", fireContentLoadedEvent);

 } else {
 document.addEventListener("DOMContentLoaded",
 fireContentLoadedEvent, false);
 }

 } else {
 document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
 $("__onDOMContentLoaded").onreadystatechange = function() {
 if (this.readyState == "complete") {
 this.onreadystatechange = null;
 fireContentLoadedEvent();
 }
 };
 }
})();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
 Before: function(element, content) {
 return Element.insert(element, {before:content});
 },

 Top: function(element, content) {
 return Element.insert(element, {top:content});
 },

 Bottom: function(element, content) {
 return Element.insert(element, {bottom:content});
 },

 After: function(element, content) {
 return Element.insert(element, {after:content});
 }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
 // set to true if needed, warning: firefox performance problems
 // NOT neeeded for page scrolling, only if draggable contained in
 // scrollable elements
 includeScrollOffsets: false,

 // must be called before calling withinIncludingScrolloffset, every time the
 // page is scrolled
 prepare: function() {
 this.deltaX = window.pageXOffset
 || document.documentElement.scrollLeft
 || document.body.scrollLeft
 || 0;
 this.deltaY = window.pageYOffset
 || document.documentElement.scrollTop
 || document.body.scrollTop
 || 0;
 },

 // caches x/y coordinate pair to use with overlap
 within: function(element, x, y) {
 if (this.includeScrollOffsets)
 return this.withinIncludingScrolloffsets(element, x, y);
 this.xcomp = x;
 this.ycomp = y;
 this.offset = Element.cumulativeOffset(element);

 return (y >= this.offset[1] &&
 y < this.offset[1] + element.offsetHeight &&
 x >= this.offset[0] &&
 x < this.offset[0] + element.offsetWidth);
 },

 withinIncludingScrolloffsets: function(element, x, y) {
 var offsetcache = Element.cumulativeScrollOffset(element);

 this.xcomp = x + offsetcache[0] - this.deltaX;
 this.ycomp = y + offsetcache[1] - this.deltaY;
 this.offset = Element.cumulativeOffset(element);

 return (this.ycomp >= this.offset[1] &&
 this.ycomp < this.offset[1] + element.offsetHeight &&
 this.xcomp >= this.offset[0] &&
 this.xcomp < this.offset[0] + element.offsetWidth);
 },

 // within must be called directly before
 overlap: function(mode, element) {
 if (!mode) return 0;
 if (mode == 'vertical')
 return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
 element.offsetHeight;
 if (mode == 'horizontal')
 return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
 element.offsetWidth;
 },

 // Deprecation layer -- use newer Element methods now (1.5.2).

 cumulativeOffset: Element.Methods.cumulativeOffset,

 positionedOffset: Element.Methods.positionedOffset,

 absolutize: function(element) {
 Position.prepare();
 return Element.absolutize(element);
 },

 relativize: function(element) {
 Position.prepare();
 return Element.relativize(element);
 },

 realOffset: Element.Methods.cumulativeScrollOffset,

 offsetParent: Element.Methods.getOffsetParent,

 page: Element.Methods.viewportOffset,

 clone: function(source, target, options) {
 options = options || { };
 return Element.clonePosition(target, source, options);
 }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
 function iter(name) {
 return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
 }

 instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
 function(element, className) {
 className = className.toString().strip();
 var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
 return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
 } : function(element, className) {
 className = className.toString().strip();
 var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
 if (!classNames && !className) return elements;

 var nodes = $(element).getElementsByTagName('*');
 className = ' ' + className + ' ';

 for (var i = 0, child, cn; child = nodes[i]; i++) {
 if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
 (classNames && classNames.all(function(name) {
 return !name.toString().blank() && cn.include(' ' + name + ' ');
 }))))
 elements.push(Element.extend(child));
 }
 return elements;
 };

 return function(className, parentElement) {
 return $(parentElement || document.body).getElementsByClassName(className);
 };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
 initialize: function(element) {
 this.element = $(element);
 },

 _each: function(iterator) {
 this.element.className.split(/\s+/).select(function(name) {
 return name.length > 0;
 })._each(iterator);
 },

 set: function(className) {
 this.element.className = className;
 },

 add: function(classNameToAdd) {
 if (this.include(classNameToAdd)) return;
 this.set($A(this).concat(classNameToAdd).join(' '));
 },

 remove: function(classNameToRemove) {
 if (!this.include(classNameToRemove)) return;
 this.set($A(this).without(classNameToRemove).join(' '));
 },

 toString: function() {
 return $A(this).join(' ');
 }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

Element.addMethods();
/*
* Really easy field validation with Prototype
* http://tetlaw.id.au/view/javascript/really-easy-field-validation
* Andrew Tetlaw
* Version 1.5.4.1 (2007-01-05)
*
* Copyright (c) 2007 Andrew Tetlaw
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
var Validator = Class.create();

Validator.prototype = {
 initialize : function(className, error, test, options) {
 if(typeof test == 'function'){
 this.options = $H(options);
 this._test = test;
 } else {
 this.options = $H(test);
 this._test = function(){return true};
 }
 this.error = error || 'Validation failed.';
 this.className = className;
 },
 test : function(v, elm) {
 return (this._test(v,elm) && this.options.all(function(p){
 return Validator.methods[p.key] ? Validator.methods[p.key](v,elm,p.value) : true;
 }));
 }
}
Validator.methods = {
 pattern : function(v,elm,opt) {return Validation.get('IsEmpty').test(v) || opt.test(v)},
 minLength : function(v,elm,opt) {return v.length >= opt},
 maxLength : function(v,elm,opt) {return v.length <= opt},
 min : function(v,elm,opt) {return v >= parseFloat(opt)},
 max : function(v,elm,opt) {return v <= parseFloat(opt)},
 notOneOf : function(v,elm,opt) {return $A(opt).all(function(value) {
 return v != value;
 })},
 oneOf : function(v,elm,opt) {return $A(opt).any(function(value) {
 return v == value;
 })},
 is : function(v,elm,opt) {return v == opt},
 isNot : function(v,elm,opt) {return v != opt},
 equalToField : function(v,elm,opt) {return v == $F(opt)},
 notEqualToField : function(v,elm,opt) {return v != $F(opt)},
 include : function(v,elm,opt) {return $A(opt).all(function(value) {
 return Validation.get(value).test(v,elm);
 })}
}

var Validation = Class.create();
Validation.defaultOptions = {
 onSubmit : true,
 stopOnFirst : false,
 immediate : false,
 focusOnError : true,
 useTitles : false,
 addClassNameToContainer: false,
 containerClassName: '.input-box',
 onFormValidate : function(result, form) {},
 onElementValidate : function(result, elm) {}
};

Validation.prototype = {
 initialize : function(form, options){
 this.form = $(form);
 if (!this.form) {
 return;
 }
 this.options = Object.extend({
 onSubmit : Validation.defaultOptions.onSubmit,
 stopOnFirst : Validation.defaultOptions.stopOnFirst,
 immediate : Validation.defaultOptions.immediate,
 focusOnError : Validation.defaultOptions.focusOnError,
 useTitles : Validation.defaultOptions.useTitles,
 onFormValidate : Validation.defaultOptions.onFormValidate,
 onElementValidate : Validation.defaultOptions.onElementValidate
 }, options || {});
 if(this.options.onSubmit) Event.observe(this.form,'submit',this.onSubmit.bind(this),false);
 if(this.options.immediate) {
 Form.getElements(this.form).each(function(input) { // Thanks Mike! 
 if (input.tagName.toLowerCase() == 'select') {
 Event.observe(input, 'blur', this.onChange.bindAsEventListener(this));
 }
 Event.observe(input, 'change', this.onChange.bindAsEventListener(this));
 }, this);
 }
 },
 onChange : function (ev) {
 Validation.isOnChange = true;
 Validation.validate(Event.element(ev),{
 useTitle : this.options.useTitles, 
 onElementValidate : this.options.onElementValidate
 });
 Validation.isOnChange = false; 
 },
 onSubmit : function(ev){
 if(!this.validate()) Event.stop(ev);
 },
 validate : function() {
 var result = false;
 var useTitles = this.options.useTitles;
 var callback = this.options.onElementValidate;
 try {
 if(this.options.stopOnFirst) {
 result = Form.getElements(this.form).all(function(elm) { return Validation.validate(elm,{useTitle : useTitles, onElementValidate : callback}); });
 } else {
 result = Form.getElements(this.form).collect(function(elm) { return Validation.validate(elm,{useTitle : useTitles, onElementValidate : callback}); }).all();
 }
 } catch (e) {

 }
 if(!result && this.options.focusOnError) {
 try{
 Form.getElements(this.form).findAll(function(elm){return $(elm).hasClassName('validation-failed')}).first().focus()
 }
 catch(e){

 }
 }
 this.options.onFormValidate(result, this.form);
 return result;
 },
 reset : function() {
 Form.getElements(this.form).each(Validation.reset);
 }
}

Object.extend(Validation, {
 validate : function(elm, options){
 options = Object.extend({
 useTitle : false,
 onElementValidate : function(result, elm) {}
 }, options || {});
 elm = $(elm);

 var cn = $w(elm.className);
 return result = cn.all(function(value) {
 var test = Validation.test(value,elm,options.useTitle);
 options.onElementValidate(test, elm);
 return test;
 });
 },
 insertAdvice : function(elm, advice){
 var container = $(elm).up('.field-row');
 if(container){
 Element.insert(container, {after: advice});
 } else if (elm.up('td.value')) {
 elm.up('td.value').insert({bottom: advice});
 } else if (elm.advaiceContainer && $(elm.advaiceContainer)) {
 $(elm.advaiceContainer).update(advice);
 }
 else {
 switch (elm.type.toLowerCase()) {
 case 'checkbox':
 case 'radio':
 var p = elm.parentNode;
 if(p) {
 Element.insert(p, {'bottom': advice});
 } else {
 Element.insert(elm, {'after': advice});
 }
 break;
 default:
 Element.insert(elm, {'after': advice});
 }
 }
 },
 showAdvice : function(elm, advice, adviceName){
 if(!elm.advices){
 elm.advices = new Hash();
 }
 else{
 elm.advices.each(function(pair){
 this.hideAdvice(elm, pair.value);
 }.bind(this));
 }
 elm.advices.set(adviceName, advice);
 if(typeof Effect == 'undefined') {
 advice.style.display = 'block';
 } else {
 if(!advice._adviceAbsolutize) {
 new Effect.Appear(advice, {duration : 1 });
 } else {
 Position.absolutize(advice);
 advice.show();
 advice.setStyle({
 'top':advice._adviceTop,
 'left': advice._adviceLeft,
 'width': advice._adviceWidth,
 'z-index': 1000
 });
 advice.addClassName('advice-absolute');
 }
 }
 },
 hideAdvice : function(elm, advice){
 if(advice != null) advice.hide();
 },
 updateCallback : function(elm, status) {
 if (typeof elm.callbackFunction != 'undefined') {
 eval(elm.callbackFunction+'(\''+elm.id+'\',\''+status+'\')');
 }
 },
 ajaxError : function(elm, errorMsg) {
 var name = 'validate-ajax';
 var advice = Validation.getAdvice(name, elm);
 if (advice == null) {
 advice = this.createAdvice(name, elm, false, errorMsg);
 }
 this.showAdvice(elm, advice, 'validate-ajax');
 this.updateCallback(elm, 'failed');

 elm.addClassName('validation-failed');
 elm.addClassName('validate-ajax');
 if (Validation.defaultOptions.addClassNameToContainer && Validation.defaultOptions.containerClassName != '') {
 var container = elm.up(Validation.defaultOptions.containerClassName);
 if (container && this.allowContainerClassName(elm)) {
 container.removeClassName('validation-passed');
 container.addClassName('validation-error');
 }
 }
 },
 allowContainerClassName: function (elm) {
 if (elm.type == 'radio' || elm.type == 'checkbox') {
 return elm.hasClassName('change-container-classname');
 }
 
 return true;
 },
 test : function(name, elm, useTitle) {
 var v = Validation.get(name);
 var prop = '__advice'+name.camelize();
 try {
 if(Validation.isVisible(elm) && !v.test($F(elm), elm)) {
 //if(!elm[prop]) {
 var advice = Validation.getAdvice(name, elm);
 if (advice == null) {
 advice = this.createAdvice(name, elm, useTitle);
 }
 this.showAdvice(elm, advice, name);
 this.updateCallback(elm, 'failed');
 //}
 elm[prop] = 1;
 if (!elm.advaiceContainer) {
 elm.removeClassName('validation-passed');
 elm.addClassName('validation-failed');
 } 
 
 if (Validation.defaultOptions.addClassNameToContainer && Validation.defaultOptions.containerClassName != '') {
 var container = elm.up(Validation.defaultOptions.containerClassName);
 if (container && this.allowContainerClassName(elm)) {
 container.removeClassName('validation-passed');
 container.addClassName('validation-error');
 }
 }
 return false;
 } else {
 var advice = Validation.getAdvice(name, elm);
 this.hideAdvice(elm, advice);
 this.updateCallback(elm, 'passed');
 elm[prop] = '';
 elm.removeClassName('validation-failed');
 elm.addClassName('validation-passed');
 if (Validation.defaultOptions.addClassNameToContainer && Validation.defaultOptions.containerClassName != '') {
 var container = elm.up(Validation.defaultOptions.containerClassName);
 if (container && !container.down('.validation-failed') && this.allowContainerClassName(elm)) {
 if (!Validation.get('IsEmpty').test(elm.value) || !this.isVisible(elm)) { 
 container.addClassName('validation-passed');
 } else {
 container.removeClassName('validation-passed');
 }
 container.removeClassName('validation-error');
 }
 }
 return true;
 }
 } catch(e) {
 throw(e)
 }
 },
 isVisible : function(elm) {
 while(elm.tagName != 'BODY') {
 if(!$(elm).visible()) return false;
 elm = elm.parentNode;
 }
 return true;
 },
 getAdvice : function(name, elm) {
 return $('advice-' + name + '-' + Validation.getElmID(elm)) || $('advice-' + Validation.getElmID(elm));
 },
 createAdvice : function(name, elm, useTitle, customError) {
 var v = Validation.get(name);
 var errorMsg = useTitle ? ((elm && elm.title) ? elm.title : v.error) : v.error;
 if (customError) {
 errorMsg = customError;
 }
 try {
 if (Translator){
 errorMsg = Translator.translate(errorMsg);
 }
 }
 catch(e){}

 advice = '<div class="validation-advice" id="advice-' + name + '-' + Validation.getElmID(elm) +'" style="display:none">' + errorMsg + '</div>'


 Validation.insertAdvice(elm, advice);
 advice = Validation.getAdvice(name, elm);
 if($(elm).hasClassName('absolute-advice')) {
 var dimensions = $(elm).getDimensions();
 var originalPosition = Position.cumulativeOffset(elm);

 advice._adviceTop = (originalPosition[1] + dimensions.height) + 'px';
 advice._adviceLeft = (originalPosition[0]) + 'px';
 advice._adviceWidth = (dimensions.width) + 'px';
 advice._adviceAbsolutize = true;
 }
 return advice;
 },
 getElmID : function(elm) {
 return elm.id ? elm.id : elm.name;
 },
 reset : function(elm) {
 elm = $(elm);
 var cn = $w(elm.className);
 cn.each(function(value) {
 var prop = '__advice'+value.camelize();
 if(elm[prop]) {
 var advice = Validation.getAdvice(value, elm);
 if (advice) {
 advice.hide();
 }
 elm[prop] = '';
 }
 elm.removeClassName('validation-failed');
 elm.removeClassName('validation-passed');
 if (Validation.defaultOptions.addClassNameToContainer && Validation.defaultOptions.containerClassName != '') {
 var container = elm.up(Validation.defaultOptions.containerClassName);
 if (container) {
 container.removeClassName('validation-passed');
 container.removeClassName('validation-error');
 }
 }
 });
 },
 add : function(className, error, test, options) {
 var nv = {};
 nv[className] = new Validator(className, error, test, options);
 Object.extend(Validation.methods, nv);
 },
 addAllThese : function(validators) {
 var nv = {};
 $A(validators).each(function(value) {
 nv[value[0]] = new Validator(value[0], value[1], value[2], (value.length > 3 ? value[3] : {}));
 });
 Object.extend(Validation.methods, nv);
 },
 get : function(name) {
 return Validation.methods[name] ? Validation.methods[name] : Validation.methods['_LikeNoIDIEverSaw_'];
 },
 methods : {
 '_LikeNoIDIEverSaw_' : new Validator('_LikeNoIDIEverSaw_','',{})
 }
});

Validation.add('IsEmpty', '', function(v) {
 return (v == '' || (v == null) || (v.length == 0) || /^\s+$/.test(v)); // || /^\s+$/.test(v));
});

Validation.addAllThese([
 ['validate-select', 'Please select an option.', function(v) {
 return ((v != "none") && (v != null) && (v.length != 0));
 }],
 ['required-entry', 'This is a required field.', function(v) {
 return !Validation.get('IsEmpty').test(v);
 }],
 ['validate-number', 'Please enter a valid number in this field.', function(v) {
 return Validation.get('IsEmpty').test(v) || (!isNaN(parseNumber(v)) && !/^\s+$/.test(parseNumber(v)));
 }],
 ['validate-digits', 'Please use numbers only in this field. please avoid spaces or other characters such as dots or commas.', function(v) {
 return Validation.get('IsEmpty').test(v) || !/[^\d]/.test(v);
 }],
 ['validate-alpha', 'Please use letters only (a-z or A-Z) in this field.', function (v) {
 return Validation.get('IsEmpty').test(v) || /^[a-zA-Z]+$/.test(v)
 }],
 ['validate-code', 'Please use only letters (a-z), numbers (0-9) or underscore(_) in this field, first character should be a letter.', function (v) {
 return Validation.get('IsEmpty').test(v) || /^[a-z]+[a-z0-9_]+$/.test(v)
 }],
 ['validate-alphanum', 'Please use only letters (a-z or A-Z) or numbers (0-9) only in this field. No spaces or other characters are allowed.', function(v) {
 return Validation.get('IsEmpty').test(v) || /^[a-zA-Z0-9]+$/.test(v) /*!/\W/.test(v)*/
 }],
 ['validate-street', 'Please use only letters (a-z or A-Z) or numbers (0-9) or spaces and # only in this field.', function(v) {
 return Validation.get('IsEmpty').test(v) || /^[ \w]{3,}([A-Za-z]\.)?([ \w]*\#\d+)?(\r\n| )[ \w]{3,}/.test(v)
 }],
 ['validate-phoneStrict', 'Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890.', function(v) {
 return Validation.get('IsEmpty').test(v) || /^(\()?\d{3}(\))?(-|\s)?\d{3}(-|\s)\d{4}$/.test(v);
 }],
 ['validate-phoneLax', 'Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890.', function(v) {
 return Validation.get('IsEmpty').test(v) || /^((\d[-. ]?)?((\(\d{3}\))|\d{3}))?[-. ]?\d{3}[-. ]?\d{4}$/.test(v);
 }],
 ['validate-fax', 'Please enter a valid fax number. For example (123) 456-7890 or 123-456-7890.', function(v) {
 return Validation.get('IsEmpty').test(v) || /^(\()?\d{3}(\))?(-|\s)?\d{3}(-|\s)\d{4}$/.test(v);
 }],
 ['validate-date', 'Please enter a valid date.', function(v) {
 var test = new Date(v);
 return Validation.get('IsEmpty').test(v) || !isNaN(test);
 }],
 ['validate-email', 'Please enter a valid email address. For example johndoe@domain.com.', function (v) {
 //return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
 //return Validation.get('IsEmpty').test(v) || /^[\!\#$%\*/?|\^\{\}`~&\'\+\-=_a-z0-9][\!\#$%\*/?|\^\{\}`~&\'\+\-=_a-z0-9\.]{1,30}[\!\#$%\*/?|\^\{\}`~&\'\+\-=_a-z0-9]@([a-z0-9_-]{1,30}\.){1,5}[a-z]{2,4}$/i.test(v)
 return Validation.get('IsEmpty').test(v) || /^[a-z0-9,!\#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*\.([a-z]{2,})/i.test(v)
 }],
 ['validate-emailSender', 'Please use only letters (a-z or A-Z), numbers (0-9) , underscore(_) or spaces in this field.', function (v) {
 return Validation.get('IsEmpty').test(v) || /^[a-zA-Z0-9_\s]+$/.test(v)
 }],
 ['validate-password', 'Please enter 6 or more characters. Leading or trailing spaces will be ignored.', function(v) {
 var pass=v.strip(); /*strip leading and trailing spaces*/
 return !(pass.length>0 && pass.length < 6);
 }],
 ['validate-admin-password', 'Please enter 7 or more characters. Password should contain both numeric and alphabetic characters.', function(v) {
 var pass=v.strip();
 if (0 == pass.length) {
 return true;
 }
 if (!(/[a-z]/i.test(v)) || !(/[0-9]/.test(v))) {
 return false;
 }
 return !(pass.length < 7);
 }],
 ['validate-cpassword', 'Please make sure your passwords match.', function(v) {
 if ($('password')) {
 var pass = $('password');
 }
 else {
 var pass = $$('.validate-password').length ? $$('.validate-password')[0] : $$('.validate-admin-password')[0];
 }
 var conf = $('confirmation') ? $('confirmation') : $$('.validate-cpassword')[0];
 return (pass.value == conf.value);
 }],
 ['validate-url', 'Please enter a valid URL. http:// is required', function (v) {
 return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)
 }],
 ['validate-clean-url', 'Please enter a valid URL. For example http://www.example.com or www.example.com', function (v) {
 return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+.(com|org|net|dk|at|us|tv|info|uk|co.uk|biz|se)$)(:(\d+))?\/?/i.test(v) || /^(www)((\.[A-Z0-9][A-Z0-9_-]*)+.(com|org|net|dk|at|us|tv|info|uk|co.uk|biz|se)$)(:(\d+))?\/?/i.test(v)
 }],
 ['validate-identifier', 'Please enter a valid Identifier. For example example-page, example-page.html or anotherlevel/example-page', function (v) {
 return Validation.get('IsEmpty').test(v) || /^[A-Z0-9][A-Z0-9_\/-]+(\.[A-Z0-9_-]+)*$/i.test(v)
 }],
 ['validate-xml-identifier', 'Please enter a valid XML-identifier. For example something_1, block5, id-4', function (v) {
 return Validation.get('IsEmpty').test(v) || /^[A-Z][A-Z0-9_\/-]*$/i.test(v)
 }],
 ['validate-ssn', 'Please enter a valid social security number. For example 123-45-6789.', function(v) {
 return Validation.get('IsEmpty').test(v) || /^\d{3}-?\d{2}-?\d{4}$/.test(v);
 }],
 ['validate-zip', 'Please enter a valid zip code. For example 90602 or 90602-1234.', function(v) {
 return Validation.get('IsEmpty').test(v) || /(^\d{5}$)|(^\d{5}-\d{4}$)/.test(v);
 }],
 ['validate-zip-international', 'Please enter a valid zip code.', function(v) {
 //return Validation.get('IsEmpty').test(v) || /(^[A-z0-9]{2,10}([\s]{0,1}|[\-]{0,1})[A-z0-9]{2,10}$)/.test(v);
 return true;
 }],
 ['validate-date-au', 'Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006.', function(v) {
 if(Validation.get('IsEmpty').test(v)) return true;
 var regex = /^(\d{2})\/(\d{2})\/(\d{4})$/;
 if(!regex.test(v)) return false;
 var d = new Date(v.replace(regex, '$2/$1/$3'));
 return ( parseInt(RegExp.$2, 10) == (1+d.getMonth()) ) &&
 (parseInt(RegExp.$1, 10) == d.getDate()) &&
 (parseInt(RegExp.$3, 10) == d.getFullYear() );
 }],
 ['validate-currency-dollar', 'Please enter a valid $ amount. For example $100.00.', function(v) {
 // [$]1[##][,###]+[.##]
 // [$]1###+[.##]
 // [$]0.##
 // [$].##
 return Validation.get('IsEmpty').test(v) || /^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)
 }],
 ['validate-one-required', 'Please select one of the above options.', function (v,elm) {
 var p = elm.parentNode;
 var options = p.getElementsByTagName('INPUT');
 return $A(options).any(function(elm) {
 return $F(elm);
 });
 }],
 ['validate-one-required-by-name', 'Please select one of the options.', function (v,elm) {
 var inputs = $$('input[name="' + elm.name.replace(/([\\"])/g, '\\$1') + '"]');
 
 var error = 1;
 for(var i=0;i<inputs.length;i++) {
 if((inputs[i].type == 'checkbox' || inputs[i].type == 'radio') && inputs[i].checked == true) {
 error = 0;
 }
 
 if(Validation.isOnChange && (inputs[i].type == 'checkbox' || inputs[i].type == 'radio')) {
 Validation.reset(inputs[i]);
 }
 }

 if( error == 0 ) {
 return true;
 } else {
 return false;
 }
 }],
 ['validate-not-negative-number', 'Please enter a valid number in this field.', function(v) {
 v = parseNumber(v);
 return (!isNaN(v) && v>=0);
 }],
 ['validate-state', 'Please select State/Province.', function(v) {
 return (v!=0 || v == '');
 }],

 ['validate-new-password', 'Please enter 6 or more characters. Leading or trailing spaces will be ignored.', function(v) {
 if (!Validation.get('validate-password').test(v)) return false;
 if (Validation.get('IsEmpty').test(v) && v != '') return false;
 return true;
 }],
 ['validate-greater-than-zero', 'Please enter a number greater than 0 in this field.', function(v) {
 if(v.length)
 return parseFloat(v) > 0;
 else
 return true;
 }],
 ['validate-zero-or-greater', 'Please enter a number 0 or greater in this field.', function(v) {
 if(v.length)
 return parseFloat(v) >= 0;
 else
 return true;
 }],
 ['validate-cc-number', 'Please enter a valid credit card number.', function(v, elm) {
 // remove non-numerics
 var ccTypeContainer = $(elm.id.substr(0,elm.id.indexOf('_cc_number')) + '_cc_type');
 if (ccTypeContainer && typeof Validation.creditCartTypes.get(ccTypeContainer.value) != 'undefined'
 && Validation.creditCartTypes.get(ccTypeContainer.value)[2] == false) {
 if (!Validation.get('IsEmpty').test(v) && Validation.get('validate-digits').test(v)) {
 return true;
 } else {
 return false;
 }
 }
 return validateCreditCard(v);
 }],
 ['validate-cc-type', 'Credit card number doesn\'t match credit card type', function(v, elm) {
 // remove credit card number delimiters such as "-" and space
 elm.value = removeDelimiters(elm.value);
 v = removeDelimiters(v);

 var ccTypeContainer = $(elm.id.substr(0,elm.id.indexOf('_cc_number')) + '_cc_type');
 if (!ccTypeContainer) {
 return true;
 }
 var ccType = ccTypeContainer.value;

 if (typeof Validation.creditCartTypes.get(ccType) == 'undefined') {
 return false;
 }

 // Other card type or switch or solo card
 if (Validation.creditCartTypes.get(ccType)[0]==false) {
 return true;
 }

 // Matched credit card type
 var ccMatchedType = '';

 Validation.creditCartTypes.each(function (pair) {
 if (pair.value[0] && v.match(pair.value[0])) {
 ccMatchedType = pair.key;
 throw $break;
 }
 });

 if(ccMatchedType != ccType) {
 return false;
 }
 
 if (ccTypeContainer.hasClassName('validation-failed') && Validation.isOnChange) {
 Validation.validate(ccTypeContainer);
 }

 return true;
 }],
 ['validate-cc-type-select', 'Card type doesn\'t match credit card number', function(v, elm) {
 var ccNumberContainer = $(elm.id.substr(0,elm.id.indexOf('_cc_type')) + '_cc_number');
 if (Validation.isOnChange && Validation.get('IsEmpty').test(ccNumberContainer.value)) {
 return true;
 }
 if (Validation.get('validate-cc-type').test(ccNumberContainer.value, ccNumberContainer)) {
 Validation.validate(ccNumberContainer);
 }
 return Validation.get('validate-cc-type').test(ccNumberContainer.value, ccNumberContainer);
 }],
 ['validate-cc-exp', 'Incorrect credit card expiration date', function(v, elm) {
 var ccExpMonth = v;
 var ccExpYear = $('ccsave_expiration_yr').value;
 var currentTime = new Date();
 var currentMonth = currentTime.getMonth() + 1;
 var currentYear = currentTime.getFullYear();
 if (ccExpMonth < currentMonth && ccExpYear == currentYear) {
 return false;
 }
 return true;
 }],
 ['validate-cc-cvn', 'Please enter a valid credit card verification number.', function(v, elm) {
 var ccTypeContainer = $(elm.id.substr(0,elm.id.indexOf('_cc_cid')) + '_cc_type');
 if (!ccTypeContainer) {
 return true;
 }
 var ccType = ccTypeContainer.value;

 if (typeof Validation.creditCartTypes.get(ccType) == 'undefined') {
 return false;
 }

 var re = Validation.creditCartTypes.get(ccType)[1];

 if (v.match(re)) {
 return true;
 }

 return false;
 }],
 ['validate-ajax', '', function(v, elm) { return true; }],
 ['validate-data', 'Please use only letters (a-z or A-Z), numbers (0-9) or underscore(_) in this field, first character should be a letter.', function (v) {
 if(v != '' && v) {
 return /^[A-Za-z]+[A-Za-z0-9_]+$/.test(v);
 }
 return true;
 }],
 ['validate-css-length', 'Please input a valid CSS-length. For example 100px or 77pt or 20em or .5ex or 50%', function (v) {
 if (v != '' && v) {
 return /^[0-9\.]+(px|pt|em|ex|%)?$/.test(v) && (!(/\..*\./.test(v))) && !(/\.$/.test(v));
 }
 return true;
 }],
 ['validate-length', 'Maximum length exceeded.', function (v, elm) {
 var re = new RegExp(/^maximum-length-[0-9]+$/);
 var result = true;
 $w(elm.className).each(function(name, index) {
 if (name.match(re) && result) {
 var length = name.split('-')[2];
 result = (v.length <= length);
 }
 });
 return result;
 }]
]);


// Credit Card Validation Javascript
// copyright 12th May 2003, by Stephen Chapman, Felgall Pty Ltd

// You have permission to copy and use this javascript provided that
// the content of the script is not changed in any way.

function validateCreditCard(s) {
 // remove non-numerics
 var v = "0123456789";
 var w = "";
 for (i=0; i < s.length; i++) {
 x = s.charAt(i);
 if (v.indexOf(x,0) != -1)
 w += x;
 }
 // validate number
 j = w.length / 2;
 k = Math.floor(j);
 m = Math.ceil(j) - k;
 c = 0;
 for (i=0; i<k; i++) {
 a = w.charAt(i*2+m) * 2;
 c += a > 9 ? Math.floor(a/10 + a%10) : a;
 }
 for (i=0; i<k+m; i++) c += w.charAt(i*2+1-m) * 1;
 return (c%10 == 0);
}

function removeDelimiters (v) {
 v = v.replace(/\s/g, '');
 v = v.replace(/\-/g, '');
 return v;
}

function parseNumber(v)
{
 if (typeof v != 'string') {
 return parseFloat(v);
 }

 var isDot = v.indexOf('.');
 var isComa = v.indexOf(',');

 if (isDot != -1 && isComa != -1) {
 if (isComa > isDot) {
 v = v.replace('.', '').replace(',', '.');
 }
 else {
 v = v.replace(',', '');
 }
 }
 else if (isComa != -1) {
 v = v.replace(',', '.');
 }

 return parseFloat(v);
}

/**
 * Hash with credit card types wich can be simply extended in payment modules
 * 0 - regexp for card number
 * 1 - regexp for cvn
 * 2 - check or not credit card number trough Luhn algorithm by
 * function validateCreditCard wich you can find above in this file
 */
Validation.creditCartTypes = $H({
 'VI': [new RegExp('^4[0-9]{12}([0-9]{3})?$'), new RegExp('^[0-9]{3}$'), true],
 'MC': [new RegExp('^5[1-5][0-9]{14}$'), new RegExp('^[0-9]{3}$'), true],
 'AE': [new RegExp('^3[47][0-9]{13}$'), new RegExp('^[0-9]{4}$'), true],
 'DI': [new RegExp('^6011[0-9]{12}$'), new RegExp('^[0-9]{3}$'), true],
 'SS': [new RegExp('^((6759[0-9]{12})|(49[013][1356][0-9]{13})|(633[34][0-9]{12})|(633110[0-9]{10})|(564182[0-9]{10}))([0-9]{2,3})?$'), new RegExp('^([0-9]{3}|[0-9]{4})?$'), true],
 'OT': [false, new RegExp('^([0-9]{3}|[0-9]{4})?$'), false]
});

// script.aculo.us builder.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Builder = {
 NODEMAP: {
 AREA: 'map',
 CAPTION: 'table',
 COL: 'table',
 COLGROUP: 'table',
 LEGEND: 'fieldset',
 OPTGROUP: 'select',
 OPTION: 'select',
 PARAM: 'object',
 TBODY: 'table',
 TD: 'table',
 TFOOT: 'table',
 TH: 'table',
 THEAD: 'table',
 TR: 'table'
 },
 // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
 // due to a Firefox bug
 node: function(elementName) {
 elementName = elementName.toUpperCase();
 
 // try innerHTML approach
 var parentTag = this.NODEMAP[elementName] || 'div';
 var parentElement = document.createElement(parentTag);
 try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
 parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
 } catch(e) {}
 var element = parentElement.firstChild || null;
 
 // see if browser added wrapping tags
 if(element && (element.tagName.toUpperCase() != elementName))
 element = element.getElementsByTagName(elementName)[0];
 
 // fallback to createElement approach
 if(!element) element = document.createElement(elementName);
 
 // abort if nothing could be created
 if(!element) return;

 // attributes (or text)
 if(arguments[1])
 if(this._isStringOrNumber(arguments[1]) ||
 (arguments[1] instanceof Array) ||
 arguments[1].tagName) {
 this._children(element, arguments[1]);
 } else {
 var attrs = this._attributes(arguments[1]);
 if(attrs.length) {
 try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
 parentElement.innerHTML = "<" +elementName + " " +
 attrs + "></" + elementName + ">";
 } catch(e) {}
 element = parentElement.firstChild || null;
 // workaround firefox 1.0.X bug
 if(!element) {
 element = document.createElement(elementName);
 for(attr in arguments[1]) 
 element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
 }
 if(element.tagName.toUpperCase() != elementName)
 element = parentElement.getElementsByTagName(elementName)[0];
 }
 } 

 // text, or array of children
 if(arguments[2])
 this._children(element, arguments[2]);

 return element;
 },
 _text: function(text) {
 return document.createTextNode(text);
 },

 ATTR_MAP: {
 'className': 'class',
 'htmlFor': 'for'
 },

 _attributes: function(attributes) {
 var attrs = [];
 for(attribute in attributes)
 attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
 '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
 return attrs.join(" ");
 },
 _children: function(element, children) {
 if(children.tagName) {
 element.appendChild(children);
 return;
 }
 if(typeof children=='object') { // array can hold nodes and text
 children.flatten().each( function(e) {
 if(typeof e=='object')
 element.appendChild(e)
 else
 if(Builder._isStringOrNumber(e))
 element.appendChild(Builder._text(e));
 });
 } else
 if(Builder._isStringOrNumber(children))
 element.appendChild(Builder._text(children));
 },
 _isStringOrNumber: function(param) {
 return(typeof param=='string' || typeof param=='number');
 },
 build: function(html) {
 var element = this.node('div');
 $(element).update(html.strip());
 return element.down();
 },
 dump: function(scope) { 
 if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope 
 
 var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
 "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
 "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
 "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
 "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
 "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);
 
 tags.each( function(tag){ 
 scope[tag] = function() { 
 return Builder.node.apply(Builder, [tag].concat($A(arguments))); 
 } 
 });
 }
}

// script.aculo.us effects.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
// Justin Palmer (http://encytemedia.com/)
// Mark Pilgrim (http://diveintomark.org/)
// Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format, 
// returns self (or first argument) if not convertable 
String.prototype.parseColor = function() { 
 var color = '#';
 if(this.slice(0,4) == 'rgb(') { 
 var cols = this.slice(4,this.length-1).split(','); 
 var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3); 
 } else { 
 if(this.slice(0,1) == '#') { 
 if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase(); 
 if(this.length==7) color = this.toLowerCase(); 
 } 
 } 
 return(color.length==7 ? color : (arguments[0] || this)); 
}

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) { 
 return $A($(element).childNodes).collect( function(node) {
 return (node.nodeType==3 ? node.nodeValue : 
 (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
 }).flatten().join('');
}

Element.collectTextNodesIgnoreClass = function(element, className) { 
 return $A($(element).childNodes).collect( function(node) {
 return (node.nodeType==3 ? node.nodeValue : 
 ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
 Element.collectTextNodesIgnoreClass(node, className) : ''));
 }).flatten().join('');
}

Element.setContentZoom = function(element, percent) {
 element = $(element); 
 element.setStyle({fontSize: (percent/100) + 'em'}); 
 if(Prototype.Browser.WebKit) window.scrollBy(0,0);
 return element;
}

Element.getInlineOpacity = function(element){
 return $(element).style.opacity || '';
}

Element.forceRerendering = function(element) {
 try {
 element = $(element);
 var n = document.createTextNode(' ');
 element.appendChild(n);
 element.removeChild(n);
 } catch(e) { }
};

/*--------------------------------------------------------------------------*/

Array.prototype.call = function() {
 var args = arguments;
 this.each(function(f){ f.apply(this, args) });
}

/*--------------------------------------------------------------------------*/

var Effect = {
 _elementDoesNotExistError: {
 name: 'ElementDoesNotExistError',
 message: 'The specified DOM element does not exist, but is required for this effect to operate'
 },
 tagifyText: function(element) {
 if(typeof Builder == 'undefined')
 throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
 
 var tagifyStyle = 'position:relative';
 if(Prototype.Browser.IE) tagifyStyle += ';zoom:1';
 
 element = $(element);
 $A(element.childNodes).each( function(child) {
 if(child.nodeType==3) {
 child.nodeValue.toArray().each( function(character) {
 element.insertBefore(
 Builder.node('span',{style: tagifyStyle},
 character == ' ' ? String.fromCharCode(160) : character), 
 child);
 });
 Element.remove(child);
 }
 });
 },
 multiple: function(element, effect) {
 var elements;
 if(((typeof element == 'object') || 
 (typeof element == 'function')) && 
 (element.length))
 elements = element;
 else
 elements = $(element).childNodes;
 
 var options = Object.extend({
 speed: 0.1,
 delay: 0.0
 }, arguments[2] || {});
 var masterDelay = options.delay;

 $A(elements).each( function(element, index) {
 new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
 });
 },
 PAIRS: {
 'slide': ['SlideDown','SlideUp'],
 'blind': ['BlindDown','BlindUp'],
 'appear': ['Appear','Fade']
 },
 toggle: function(element, effect) {
 element = $(element);
 effect = (effect || 'appear').toLowerCase();
 var options = Object.extend({
 queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
 }, arguments[2] || {});
 Effect[element.visible() ? 
 Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
 }
};

var Effect2 = Effect; // deprecated

/* ------------- transitions ------------- */

Effect.Transitions = {
 linear: Prototype.K,
 sinoidal: function(pos) {
 return (-Math.cos(pos*Math.PI)/2) + 0.5;
 },
 reverse: function(pos) {
 return 1-pos;
 },
 flicker: function(pos) {
 var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
 return (pos > 1 ? 1 : pos);
 },
 wobble: function(pos) {
 return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
 },
 pulse: function(pos, pulses) { 
 pulses = pulses || 5; 
 return (
 Math.round((pos % (1/pulses)) * pulses) == 0 ? 
 ((pos * pulses * 2) - Math.floor(pos * pulses * 2)) : 
 1 - ((pos * pulses * 2) - Math.floor(pos * pulses * 2))
 );
 },
 none: function(pos) {
 return 0;
 },
 full: function(pos) {
 return 1;
 }
};

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create();
Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {
 initialize: function() {
 this.effects = [];
 this.interval = null; 
 },
 _each: function(iterator) {
 this.effects._each(iterator);
 },
 add: function(effect) {
 var timestamp = new Date().getTime();
 
 var position = (typeof effect.options.queue == 'string') ? 
 effect.options.queue : effect.options.queue.position;
 
 switch(position) {
 case 'front':
 // move unstarted effects after this effect 
 this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
 e.startOn += effect.finishOn;
 e.finishOn += effect.finishOn;
 });
 break;
 case 'with-last':
 timestamp = this.effects.pluck('startOn').max() || timestamp;
 break;
 case 'end':
 // start effect after last queued effect has finished
 timestamp = this.effects.pluck('finishOn').max() || timestamp;
 break;
 }
 
 effect.startOn += timestamp;
 effect.finishOn += timestamp;

 if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
 this.effects.push(effect);
 
 if(!this.interval)
 this.interval = setInterval(this.loop.bind(this), 15);
 },
 remove: function(effect) {
 this.effects = this.effects.reject(function(e) { return e==effect });
 if(this.effects.length == 0) {
 clearInterval(this.interval);
 this.interval = null;
 }
 },
 loop: function() {
 var timePos = new Date().getTime();
 for(var i=0, len=this.effects.length;i<len;i++) 
 this.effects[i] && this.effects[i].loop(timePos);
 }
});

Effect.Queues = {
 instances: $H(),
 get: function(queueName) {
 if(typeof queueName != 'string') return queueName;
 
 if(!this.instances[queueName])
 this.instances[queueName] = new Effect.ScopedQueue();
 
 return this.instances[queueName];
 }
}
Effect.Queue = Effect.Queues.get('global');

Effect.DefaultOptions = {
 transition: Effect.Transitions.sinoidal,
 duration: 1.0, // seconds
 fps: 100, // 100= assume 66fps max.
 sync: false, // true for combining
 from: 0.0,
 to: 1.0,
 delay: 0.0,
 queue: 'parallel'
}

Effect.Base = function() {};
Effect.Base.prototype = {
 position: null,
 start: function(options) {
 function codeForEvent(options,eventName){
 return (
 (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
 (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
 );
 }
 if(options.transition === false) options.transition = Effect.Transitions.linear;
 this.options = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});
 this.currentFrame = 0;
 this.state = 'idle';
 this.startOn = this.options.delay*1000;
 this.finishOn = this.startOn+(this.options.duration*1000);
 this.fromToDelta = this.options.to-this.options.from;
 this.totalTime = this.finishOn-this.startOn;
 this.totalFrames = this.options.fps*this.options.duration;
 
 eval('this.render = function(pos){ '+
 'if(this.state=="idle"){this.state="running";'+
 codeForEvent(options,'beforeSetup')+
 (this.setup ? 'this.setup();':'')+ 
 codeForEvent(options,'afterSetup')+
 '};if(this.state=="running"){'+
 'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
 'this.position=pos;'+
 codeForEvent(options,'beforeUpdate')+
 (this.update ? 'this.update(pos);':'')+
 codeForEvent(options,'afterUpdate')+
 '}}');
 
 this.event('beforeStart');
 if(!this.options.sync)
 Effect.Queues.get(typeof this.options.queue == 'string' ? 
 'global' : this.options.queue.scope).add(this);
 },
 loop: function(timePos) {
 if(timePos >= this.startOn) {
 if(timePos >= this.finishOn) {
 this.render(1.0);
 this.cancel();
 this.event('beforeFinish');
 if(this.finish) this.finish(); 
 this.event('afterFinish');
 return; 
 }
 var pos = (timePos - this.startOn) / this.totalTime,
 frame = Math.round(pos * this.totalFrames);
 if(frame > this.currentFrame) {
 this.render(pos);
 this.currentFrame = frame;
 }
 }
 },
 cancel: function() {
 if(!this.options.sync)
 Effect.Queues.get(typeof this.options.queue == 'string' ? 
 'global' : this.options.queue.scope).remove(this);
 this.state = 'finished';
 },
 event: function(eventName) {
 if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
 if(this.options[eventName]) this.options[eventName](this);
 },
 inspect: function() {
 var data = $H();
 for(property in this)
 if(typeof this[property] != 'function') data[property] = this[property];
 return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
 }
}

Effect.Parallel = Class.create();
Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {
 initialize: function(effects) {
 this.effects = effects || [];
 this.start(arguments[1]);
 },
 update: function(position) {
 this.effects.invoke('render', position);
 },
 finish: function(position) {
 this.effects.each( function(effect) {
 effect.render(1.0);
 effect.cancel();
 effect.event('beforeFinish');
 if(effect.finish) effect.finish(position);
 effect.event('afterFinish');
 });
 }
});

Effect.Event = Class.create();
Object.extend(Object.extend(Effect.Event.prototype, Effect.Base.prototype), {
 initialize: function() {
 var options = Object.extend({
 duration: 0
 }, arguments[0] || {});
 this.start(options);
 },
 update: Prototype.emptyFunction
});

Effect.Opacity = Class.create();
Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
 initialize: function(element) {
 this.element = $(element);
 if(!this.element) throw(Effect._elementDoesNotExistError);
 // make this work on IE on elements without 'layout'
 if(Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
 this.element.setStyle({zoom: 1});
 var options = Object.extend({
 from: this.element.getOpacity() || 0.0,
 to: 1.0
 }, arguments[1] || {});
 this.start(options);
 },
 update: function(position) {
 this.element.setOpacity(position);
 }
});

Effect.Move = Class.create();
Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
 initialize: function(element) {
 this.element = $(element);
 if(!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({
 x: 0,
 y: 0,
 mode: 'relative'
 }, arguments[1] || {});
 this.start(options);
 },
 setup: function() {
 // Bug in Opera: Opera returns the "real" position of a static element or
 // relative element that does not have top/left explicitly set.
 // ==> Always set top and left for position relative elements in your stylesheets 
 // (to 0 if you do not need them) 
 this.element.makePositioned();
 this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
 this.originalTop = parseFloat(this.element.getStyle('top') || '0');
 if(this.options.mode == 'absolute') {
 // absolute movement, so we need to calc deltaX and deltaY
 this.options.x = this.options.x - this.originalLeft;
 this.options.y = this.options.y - this.originalTop;
 }
 },
 update: function(position) {
 this.element.setStyle({
 left: Math.round(this.options.x * position + this.originalLeft) + 'px',
 top: Math.round(this.options.y * position + this.originalTop) + 'px'
 });
 }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
 return new Effect.Move(element, 
 Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
};

Effect.Scale = Class.create();
Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
 initialize: function(element, percent) {
 this.element = $(element);
 if(!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({
 scaleX: true,
 scaleY: true,
 scaleContent: true,
 scaleFromCenter: false,
 scaleMode: 'box', // 'box' or 'contents' or {} with provided values
 scaleFrom: 100.0,
 scaleTo: percent
 }, arguments[2] || {});
 this.start(options);
 },
 setup: function() {
 this.restoreAfterFinish = this.options.restoreAfterFinish || false;
 this.elementPositioning = this.element.getStyle('position');
 
 this.originalStyle = {};
 ['top','left','width','height','fontSize'].each( function(k) {
 this.originalStyle[k] = this.element.style[k];
 }.bind(this));
 
 this.originalTop = this.element.offsetTop;
 this.originalLeft = this.element.offsetLeft;
 
 var fontSize = this.element.getStyle('font-size') || '100%';
 ['em','px','%','pt'].each( function(fontSizeType) {
 if(fontSize.indexOf(fontSizeType)>0) {
 this.fontSize = parseFloat(fontSize);
 this.fontSizeType = fontSizeType;
 }
 }.bind(this));
 
 this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
 
 this.dims = null;
 if(this.options.scaleMode=='box')
 this.dims = [this.element.offsetHeight, this.element.offsetWidth];
 if(/^content/.test(this.options.scaleMode))
 this.dims = [this.element.scrollHeight, this.element.scrollWidth];
 if(!this.dims)
 this.dims = [this.options.scaleMode.originalHeight,
 this.options.scaleMode.originalWidth];
 },
 update: function(position) {
 var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
 if(this.options.scaleContent && this.fontSize)
 this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
 this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
 },
 finish: function(position) {
 if(this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
 },
 setDimensions: function(height, width) {
 var d = {};
 if(this.options.scaleX) d.width = Math.round(width) + 'px';
 if(this.options.scaleY) d.height = Math.round(height) + 'px';
 if(this.options.scaleFromCenter) {
 var topd = (height - this.dims[0])/2;
 var leftd = (width - this.dims[1])/2;
 if(this.elementPositioning == 'absolute') {
 if(this.options.scaleY) d.top = this.originalTop-topd + 'px';
 if(this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
 } else {
 if(this.options.scaleY) d.top = -topd + 'px';
 if(this.options.scaleX) d.left = -leftd + 'px';
 }
 }
 this.element.setStyle(d);
 }
});

Effect.Highlight = Class.create();
Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
 initialize: function(element) {
 this.element = $(element);
 if(!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});
 this.start(options);
 },
 setup: function() {
 // Prevent executing on elements not in the layout flow
 if(this.element.getStyle('display')=='none') { this.cancel(); return; }
 // Disable background image during the effect
 this.oldStyle = {};
 if (!this.options.keepBackgroundImage) {
 this.oldStyle.backgroundImage = this.element.getStyle('background-image');
 this.element.setStyle({backgroundImage: 'none'});
 }
 if(!this.options.endcolor)
 this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
 if(!this.options.restorecolor)
 this.options.restorecolor = this.element.getStyle('background-color');
 // init color calculations
 this._base = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
 this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
 },
 update: function(position) {
 this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
 return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
 },
 finish: function() {
 this.element.setStyle(Object.extend(this.oldStyle, {
 backgroundColor: this.options.restorecolor
 }));
 }
});

Effect.ScrollTo = Class.create();
Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
 initialize: function(element) {
 this.element = $(element);
 this.start(arguments[1] || {});
 },
 setup: function() {
 Position.prepare();
 var offsets = Position.cumulativeOffset(this.element);
 if(this.options.offset) offsets[1] += this.options.offset;
 var max = window.innerHeight ? 
 window.height - window.innerHeight :
 document.body.scrollHeight - 
 (document.documentElement.clientHeight ? 
 document.documentElement.clientHeight : document.body.clientHeight);
 this.scrollStart = Position.deltaY;
 this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
 },
 update: function(position) {
 Position.prepare();
 window.scrollTo(Position.deltaX, 
 this.scrollStart + (position*this.delta));
 }
});

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
 element = $(element);
 var oldOpacity = element.getInlineOpacity();
 var options = Object.extend({
 from: element.getOpacity() || 1.0,
 to: 0.0,
 afterFinishInternal: function(effect) { 
 if(effect.options.to!=0) return;
 effect.element.hide().setStyle({opacity: oldOpacity}); 
 }}, arguments[1] || {});
 return new Effect.Opacity(element,options);
}

Effect.Appear = function(element) {
 element = $(element);
 var options = Object.extend({
 from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
 to: 1.0,
 // force Safari to render floated elements properly
 afterFinishInternal: function(effect) {
 effect.element.forceRerendering();
 },
 beforeSetup: function(effect) {
 effect.element.setOpacity(effect.options.from).show(); 
 }}, arguments[1] || {});
 return new Effect.Opacity(element,options);
}

Effect.Puff = function(element) {
 element = $(element);
 var oldStyle = { 
 opacity: element.getInlineOpacity(), 
 position: element.getStyle('position'),
 top: element.style.top,
 left: element.style.left,
 width: element.style.width,
 height: element.style.height
 };
 return new Effect.Parallel(
 [ new Effect.Scale(element, 200, 
 { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
 new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
 Object.extend({ duration: 1.0, 
 beforeSetupInternal: function(effect) {
 Position.absolutize(effect.effects[0].element)
 },
 afterFinishInternal: function(effect) {
 effect.effects[0].element.hide().setStyle(oldStyle); }
 }, arguments[1] || {})
 );
}

Effect.BlindUp = function(element) {
 element = $(element);
 element.makeClipping();
 return new Effect.Scale(element, 0,
 Object.extend({ scaleContent: false, 
 scaleX: false, 
 restoreAfterFinish: true,
 afterFinishInternal: function(effect) {
 effect.element.hide().undoClipping();
 } 
 }, arguments[1] || {})
 );
}

Effect.BlindDown = function(element) {
 element = $(element);
 var elementDimensions = element.getDimensions();
 return new Effect.Scale(element, 100, Object.extend({ 
 scaleContent: false, 
 scaleX: false,
 scaleFrom: 0,
 scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 restoreAfterFinish: true,
 afterSetup: function(effect) {
 effect.element.makeClipping().setStyle({height: '0px'}).show(); 
 }, 
 afterFinishInternal: function(effect) {
 effect.element.undoClipping();
 }
 }, arguments[1] || {}));
}

Effect.SwitchOff = function(element) {
 element = $(element);
 var oldOpacity = element.getInlineOpacity();
 return new Effect.Appear(element, Object.extend({
 duration: 0.4,
 from: 0,
 transition: Effect.Transitions.flicker,
 afterFinishInternal: function(effect) {
 new Effect.Scale(effect.element, 1, { 
 duration: 0.3, scaleFromCenter: true,
 scaleX: false, scaleContent: false, restoreAfterFinish: true,
 beforeSetup: function(effect) { 
 effect.element.makePositioned().makeClipping();
 },
 afterFinishInternal: function(effect) {
 effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
 }
 })
 }
 }, arguments[1] || {}));
}

Effect.DropOut = function(element) {
 element = $(element);
 var oldStyle = {
 top: element.getStyle('top'),
 left: element.getStyle('left'),
 opacity: element.getInlineOpacity() };
 return new Effect.Parallel(
 [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
 new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
 Object.extend(
 { duration: 0.5,
 beforeSetup: function(effect) {
 effect.effects[0].element.makePositioned(); 
 },
 afterFinishInternal: function(effect) {
 effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
 } 
 }, arguments[1] || {}));
}

Effect.Shake = function(element) {
 element = $(element);
 var oldStyle = {
 top: element.getStyle('top'),
 left: element.getStyle('left') };
 return new Effect.Move(element, 
 { x: 20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
 { x: -40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
 { x: 40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
 { x: -40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
 { x: 40, y: 0, duration: 0.1, afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
 { x: -20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
 effect.element.undoPositioned().setStyle(oldStyle);
 }}) }}) }}) }}) }}) }});
}

Effect.SlideDown = function(element) {
 element = $(element).cleanWhitespace();
 // SlideDown need to have the content of the element wrapped in a container element with fixed height!
 var oldInnerBottom = element.down().getStyle('bottom');
 var elementDimensions = element.getDimensions();
 return new Effect.Scale(element, 100, Object.extend({ 
 scaleContent: false, 
 scaleX: false, 
 scaleFrom: window.opera ? 0 : 1,
 scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 restoreAfterFinish: true,
 afterSetup: function(effect) {
 effect.element.makePositioned();
 effect.element.down().makePositioned();
 if(window.opera) effect.element.setStyle({top: ''});
 effect.element.makeClipping().setStyle({height: '0px'}).show(); 
 },
 afterUpdateInternal: function(effect) {
 effect.element.down().setStyle({bottom:
 (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
 },
 afterFinishInternal: function(effect) {
 effect.element.undoClipping().undoPositioned();
 effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
 }, arguments[1] || {})
 );
}

Effect.SlideUp = function(element) {
 element = $(element).cleanWhitespace();
 var oldInnerBottom = element.down().getStyle('bottom');
 return new Effect.Scale(element, window.opera ? 0 : 1,
 Object.extend({ scaleContent: false, 
 scaleX: false, 
 scaleMode: 'box',
 scaleFrom: 100,
 restoreAfterFinish: true,
 beforeStartInternal: function(effect) {
 effect.element.makePositioned();
 effect.element.down().makePositioned();
 if(window.opera) effect.element.setStyle({top: ''});
 effect.element.makeClipping().show();
 }, 
 afterUpdateInternal: function(effect) {
 effect.element.down().setStyle({bottom:
 (effect.dims[0] - effect.element.clientHeight) + 'px' });
 },
 afterFinishInternal: function(effect) {
 effect.element.hide().undoClipping().undoPositioned().setStyle({bottom: oldInnerBottom});
 effect.element.down().undoPositioned();
 }
 }, arguments[1] || {})
 );
}

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
 return new Effect.Scale(element, window.opera ? 1 : 0, { 
 restoreAfterFinish: true,
 beforeSetup: function(effect) {
 effect.element.makeClipping(); 
 }, 
 afterFinishInternal: function(effect) {
 effect.element.hide().undoClipping(); 
 }
 });
}

Effect.Grow = function(element) {
 element = $(element);
 var options = Object.extend({
 direction: 'center',
 moveTransition: Effect.Transitions.sinoidal,
 scaleTransition: Effect.Transitions.sinoidal,
 opacityTransition: Effect.Transitions.full
 }, arguments[1] || {});
 var oldStyle = {
 top: element.style.top,
 left: element.style.left,
 height: element.style.height,
 width: element.style.width,
 opacity: element.getInlineOpacity() };

 var dims = element.getDimensions(); 
 var initialMoveX, initialMoveY;
 var moveX, moveY;
 
 switch (options.direction) {
 case 'top-left':
 initialMoveX = initialMoveY = moveX = moveY = 0; 
 break;
 case 'top-right':
 initialMoveX = dims.width;
 initialMoveY = moveY = 0;
 moveX = -dims.width;
 break;
 case 'bottom-left':
 initialMoveX = moveX = 0;
 initialMoveY = dims.height;
 moveY = -dims.height;
 break;
 case 'bottom-right':
 initialMoveX = dims.width;
 initialMoveY = dims.height;
 moveX = -dims.width;
 moveY = -dims.height;
 break;
 case 'center':
 initialMoveX = dims.width / 2;
 initialMoveY = dims.height / 2;
 moveX = -dims.width / 2;
 moveY = -dims.height / 2;
 break;
 }
 
 return new Effect.Move(element, {
 x: initialMoveX,
 y: initialMoveY,
 duration: 0.01, 
 beforeSetup: function(effect) {
 effect.element.hide().makeClipping().makePositioned();
 },
 afterFinishInternal: function(effect) {
 new Effect.Parallel(
 [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
 new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
 new Effect.Scale(effect.element, 100, {
 scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
 sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
 ], Object.extend({
 beforeSetup: function(effect) {
 effect.effects[0].element.setStyle({height: '0px'}).show(); 
 },
 afterFinishInternal: function(effect) {
 effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
 }
 }, options)
 )
 }
 });
}

Effect.Shrink = function(element) {
 element = $(element);
 var options = Object.extend({
 direction: 'center',
 moveTransition: Effect.Transitions.sinoidal,
 scaleTransition: Effect.Transitions.sinoidal,
 opacityTransition: Effect.Transitions.none
 }, arguments[1] || {});
 var oldStyle = {
 top: element.style.top,
 left: element.style.left,
 height: element.style.height,
 width: element.style.width,
 opacity: element.getInlineOpacity() };

 var dims = element.getDimensions();
 var moveX, moveY;
 
 switch (options.direction) {
 case 'top-left':
 moveX = moveY = 0;
 break;
 case 'top-right':
 moveX = dims.width;
 moveY = 0;
 break;
 case 'bottom-left':
 moveX = 0;
 moveY = dims.height;
 break;
 case 'bottom-right':
 moveX = dims.width;
 moveY = dims.height;
 break;
 case 'center': 
 moveX = dims.width / 2;
 moveY = dims.height / 2;
 break;
 }
 
 return new Effect.Parallel(
 [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
 new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
 new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
 ], Object.extend({ 
 beforeStartInternal: function(effect) {
 effect.effects[0].element.makePositioned().makeClipping(); 
 },
 afterFinishInternal: function(effect) {
 effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
 }, options)
 );
}

Effect.Pulsate = function(element) {
 element = $(element);
 var options = arguments[1] || {};
 var oldOpacity = element.getInlineOpacity();
 var transition = options.transition || Effect.Transitions.sinoidal;
 var reverser = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
 reverser.bind(transition);
 return new Effect.Opacity(element, 
 Object.extend(Object.extend({ duration: 2.0, from: 0,
 afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
 }, options), {transition: reverser}));
}

Effect.Fold = function(element) {
 element = $(element);
 var oldStyle = {
 top: element.style.top,
 left: element.style.left,
 width: element.style.width,
 height: element.style.height };
 element.makeClipping();
 return new Effect.Scale(element, 5, Object.extend({ 
 scaleContent: false,
 scaleX: false,
 afterFinishInternal: function(effect) {
 new Effect.Scale(element, 1, { 
 scaleContent: false, 
 scaleY: false,
 afterFinishInternal: function(effect) {
 effect.element.hide().undoClipping().setStyle(oldStyle);
 } });
 }}, arguments[1] || {}));
};

Effect.Morph = Class.create();
Object.extend(Object.extend(Effect.Morph.prototype, Effect.Base.prototype), {
 initialize: function(element) {
 this.element = $(element);
 if(!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({
 style: {}
 }, arguments[1] || {});
 if (typeof options.style == 'string') {
 if(options.style.indexOf(':') == -1) {
 var cssText = '', selector = '.' + options.style;
 $A(document.styleSheets).reverse().each(function(styleSheet) {
 if (styleSheet.cssRules) cssRules = styleSheet.cssRules;
 else if (styleSheet.rules) cssRules = styleSheet.rules;
 $A(cssRules).reverse().each(function(rule) {
 if (selector == rule.selectorText) {
 cssText = rule.style.cssText;
 throw $break;
 }
 });
 if (cssText) throw $break;
 });
 this.style = cssText.parseStyle();
 options.afterFinishInternal = function(effect){
 effect.element.addClassName(effect.options.style);
 effect.transforms.each(function(transform) {
 if(transform.style != 'opacity')
 effect.element.style[transform.style] = '';
 });
 }
 } else this.style = options.style.parseStyle();
 } else this.style = $H(options.style)
 this.start(options);
 },
 setup: function(){
 function parseColor(color){
 if(!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
 color = color.parseColor();
 return $R(0,2).map(function(i){
 return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
 });
 }
 this.transforms = this.style.map(function(pair){
 var property = pair[0], value = pair[1], unit = null;

 if(value.parseColor('#zzzzzz') != '#zzzzzz') {
 value = value.parseColor();
 unit = 'color';
 } else if(property == 'opacity') {
 value = parseFloat(value);
 if(Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
 this.element.setStyle({zoom: 1});
 } else if(Element.CSS_LENGTH.test(value)) {
 var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
 value = parseFloat(components[1]);
 unit = (components.length == 3) ? components[2] : null;
 }

 var originalValue = this.element.getStyle(property);
 return { 
 style: property.camelize(), 
 originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
 targetValue: unit=='color' ? parseColor(value) : value,
 unit: unit
 };
 }.bind(this)).reject(function(transform){
 return (
 (transform.originalValue == transform.targetValue) ||
 (
 transform.unit != 'color' &&
 (isNaN(transform.originalValue) || isNaN(transform.targetValue))
 )
 )
 });
 },
 update: function(position) {
 var style = {}, transform, i = this.transforms.length;
 while(i--)
 style[(transform = this.transforms[i]).style] = 
 transform.unit=='color' ? '#'+
 (Math.round(transform.originalValue[0]+
 (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
 (Math.round(transform.originalValue[1]+
 (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
 (Math.round(transform.originalValue[2]+
 (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
 transform.originalValue + Math.round(
 ((transform.targetValue - transform.originalValue) * position) * 1000)/1000 + transform.unit;
 this.element.setStyle(style, true);
 }
});

Effect.Transform = Class.create();
Object.extend(Effect.Transform.prototype, {
 initialize: function(tracks){
 this.tracks = [];
 this.options = arguments[1] || {};
 this.addTracks(tracks);
 },
 addTracks: function(tracks){
 tracks.each(function(track){
 var data = $H(track).values().first();
 this.tracks.push($H({
 ids: $H(track).keys().first(),
 effect: Effect.Morph,
 options: { style: data }
 }));
 }.bind(this));
 return this;
 },
 play: function(){
 return new Effect.Parallel(
 this.tracks.map(function(track){
 var elements = [$(track.ids) || $$(track.ids)].flatten();
 return elements.map(function(e){ return new track.effect(e, Object.extend({ sync:true }, track.options)) });
 }).flatten(),
 this.options
 );
 }
});

Element.CSS_PROPERTIES = $w(
 'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
 'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
 'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
 'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
 'fontSize fontWeight height left letterSpacing lineHeight ' +
 'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
 'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
 'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
 'right textIndent top width wordSpacing zIndex');
 
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.prototype.parseStyle = function(){
 var element = document.createElement('div');
 element.innerHTML = '<div style="' + this + '"></div>';
 var style = element.childNodes[0].style, styleRules = $H();
 
 Element.CSS_PROPERTIES.each(function(property){
 if(style[property]) styleRules[property] = style[property]; 
 });
 if(Prototype.Browser.IE && this.indexOf('opacity') > -1) {
 styleRules.opacity = this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];
 }
 return styleRules;
};

Element.morph = function(element, style) {
 new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || {}));
 return element;
};

['getInlineOpacity','forceRerendering','setContentZoom',
 'collectTextNodes','collectTextNodesIgnoreClass','morph'].each( 
 function(f) { Element.Methods[f] = Element[f]; }
);

Element.Methods.visualEffect = function(element, effect, options) {
 s = effect.dasherize().camelize();
 effect_class = s.charAt(0).toUpperCase() + s.substring(1);
 new Effect[effect_class](element, options);
 return $(element);
};

Element.addMethods();
// script.aculo.us dragdrop.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// (c) 2005-2007 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(typeof Effect == 'undefined')
 throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
 drops: [],

 remove: function(element) {
 this.drops = this.drops.reject(function(d) { return d.element==$(element) });
 },

 add: function(element) {
 element = $(element);
 var options = Object.extend({
 greedy: true,
 hoverclass: null,
 tree: false
 }, arguments[1] || {});

 // cache containers
 if(options.containment) {
 options._containers = [];
 var containment = options.containment;
 if((typeof containment == 'object') &&
 (containment.constructor == Array)) {
 containment.each( function(c) { options._containers.push($(c)) });
 } else {
 options._containers.push($(containment));
 }
 }

 if(options.accept) options.accept = [options.accept].flatten();

 Element.makePositioned(element); // fix IE
 options.element = element;

 this.drops.push(options);
 },

 findDeepestChild: function(drops) {
 deepest = drops[0];

 for (i = 1; i < drops.length; ++i)
 if (Element.isParent(drops[i].element, deepest.element))
 deepest = drops[i];

 return deepest;
 },

 isContained: function(element, drop) {
 var containmentNode;
 if(drop.tree) {
 containmentNode = element.treeNode;
 } else {
 containmentNode = element.parentNode;
 }
 return drop._containers.detect(function(c) { return containmentNode == c });
 },

 isAffected: function(point, element, drop) {
 return (
 (drop.element!=element) &&
 ((!drop._containers) ||
 this.isContained(element, drop)) &&
 ((!drop.accept) ||
 (Element.classNames(element).detect(
 function(v) { return drop.accept.include(v) } ) )) &&
 Position.within(drop.element, point[0], point[1]) );
 },

 deactivate: function(drop) {
 if(drop.hoverclass)
 Element.removeClassName(drop.element, drop.hoverclass);
 this.last_active = null;
 },

 activate: function(drop) {
 if(drop.hoverclass)
 Element.addClassName(drop.element, drop.hoverclass);
 this.last_active = drop;
 },

 show: function(point, element) {
 if(!this.drops.length) return;
 var affected = [];

 if(this.last_active) this.deactivate(this.last_active);
 this.drops.each( function(drop) {
 if(Droppables.isAffected(point, element, drop))
 affected.push(drop);
 });

 if(affected.length>0) {
 drop = Droppables.findDeepestChild(affected);
 Position.within(drop.element, point[0], point[1]);
 if(drop.onHover)
 drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

 Droppables.activate(drop);
 }
 },

 fire: function(event, element) {
 if(!this.last_active) return;
 Position.prepare();

 if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
 if (this.last_active.onDrop) {
 this.last_active.onDrop(element, this.last_active.element, event);
 return true;
 }
 },

 reset: function() {
 if(this.last_active)
 this.deactivate(this.last_active);
 }
}

var Draggables = {
 drags: [],
 observers: [],

 register: function(draggable) {
 if(this.drags.length == 0) {
 this.eventMouseUp = this.endDrag.bindAsEventListener(this);
 this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
 this.eventKeypress = this.keyPress.bindAsEventListener(this);

 Event.observe(document, "mouseup", this.eventMouseUp);
 Event.observe(draggable.element, "mousemove", this.eventMouseMove);
 Event.observe(document, "keypress", this.eventKeypress);
 }
 this.drags.push(draggable);
 },

 unregister: function(draggable) {
 this.drags = this.drags.reject(function(d) { return d==draggable });
 if(this.drags.length == 0) {
 Event.stopObserving(document, "mouseup", this.eventMouseUp);
 Event.stopObserving(draggable.element, "mousemove", this.eventMouseMove);
 Event.stopObserving(document, "keypress", this.eventKeypress);
 }
 },

 activate: function(draggable) {
 if(draggable.options.delay) {
 this._timeout = setTimeout(function() {
 Draggables._timeout = null;
 window.focus();
 Draggables.activeDraggable = draggable;
 }.bind(this), draggable.options.delay);
 } else {
 window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
 this.activeDraggable = draggable;
 }
 },

 deactivate: function() {
 this.activeDraggable = null;
 },

 updateDrag: function(event) {
 if(!this.activeDraggable) return;
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 // Mozilla-based browsers fire successive mousemove events with
 // the same coordinates, prevent needless redrawing (moz bug?)
 if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
 this._lastPointer = pointer;

 this.activeDraggable.updateDrag(event, pointer);
 },

 endDrag: function(event) {
 if(this._timeout) {
 clearTimeout(this._timeout);
 this._timeout = null;
 }
 if(!this.activeDraggable) return;
 this._lastPointer = null;
 this.activeDraggable.endDrag(event);
 this.activeDraggable = null;
 },

 keyPress: function(event) {
 if(this.activeDraggable)
 this.activeDraggable.keyPress(event);
 },

 addObserver: function(observer) {
 this.observers.push(observer);
 this._cacheObserverCallbacks();
 },

 removeObserver: function(element) { // element instead of observer fixes mem leaks
 this.observers = this.observers.reject( function(o) { return o.element==element });
 this._cacheObserverCallbacks();
 },

 notify: function(eventName, draggable, event) { // 'onStart', 'onEnd', 'onDrag'
 if(this[eventName+'Count'] > 0)
 this.observers.each( function(o) {
 if(o[eventName]) o[eventName](eventName, draggable, event);
 });
 if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
 },

 _cacheObserverCallbacks: function() {
 ['onStart','onEnd','onDrag'].each( function(eventName) {
 Draggables[eventName+'Count'] = Draggables.observers.select(
 function(o) { return o[eventName]; }
 ).length;
 });
 }
}

/*--------------------------------------------------------------------------*/

var Draggable = Class.create();
Draggable._dragging = {};

Draggable.prototype = {
 initialize: function(element) {
 var defaults = {
 handle: false,
 reverteffect: function(element, top_offset, left_offset) {
 var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
 new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
 queue: {scope:'_draggable', position:'end'}
 });
 },
 endeffect: function(element) {
 var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0;
 new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
 queue: {scope:'_draggable', position:'end'},
 afterFinish: function(){
 Draggable._dragging[element] = false
 }
 });
 },
 zindex: 1000,
 revert: false,
 quiet: false,
 scroll: false,
 scrollSensitivity: 20,
 scrollSpeed: 15,
 snap: false, // false, or xy or [x,y] or function(x,y){ return [x,y] }
 delay: 0
 };

 if(!arguments[1] || typeof arguments[1].endeffect == 'undefined')
 Object.extend(defaults, {
 starteffect: function(element) {
 element._opacity = Element.getOpacity(element);
 Draggable._dragging[element] = true;
 new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
 }
 });

 var options = Object.extend(defaults, arguments[1] || {});

 this.element = $(element);

 if(options.handle && (typeof options.handle == 'string'))
 this.handle = this.element.down('.'+options.handle, 0);

 if(!this.handle) this.handle = $(options.handle);
 if(!this.handle) this.handle = this.element;

 if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
 options.scroll = $(options.scroll);
 this._isScrollChild = Element.childOf(this.element, options.scroll);
 }

 Element.makePositioned(this.element); // fix IE

 this.delta = this.currentDelta();
 this.options = options;
 this.dragging = false;

 this.eventMouseDown = this.initDrag.bindAsEventListener(this);
 Event.observe(this.handle, "mousedown", this.eventMouseDown);

 Draggables.register(this);
 },

 destroy: function() {
 Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
 Draggables.unregister(this);
 },

 currentDelta: function() {
 return([
 parseInt(Element.getStyle(this.element,'left') || '0'),
 parseInt(Element.getStyle(this.element,'top') || '0')]);
 },

 initDrag: function(event) {
 if(typeof Draggable._dragging[this.element] != 'undefined' &&
 Draggable._dragging[this.element]) return;
 if(Event.isLeftClick(event)) {
 // abort on form elements, fixes a Firefox issue
 var src = Event.element(event);
 if((tag_name = src.tagName.toUpperCase()) && (
 tag_name=='INPUT' ||
 tag_name=='SELECT' ||
 tag_name=='OPTION' ||
 tag_name=='BUTTON' ||
 tag_name=='TEXTAREA')) return;

 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 var pos = Position.cumulativeOffset(this.element);
 this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });

 Draggables.activate(this);
 Event.stop(event);
 }
 },

 startDrag: function(event) {
 this.dragging = true;

 if(this.options.zindex) {
 this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
 this.element.style.zIndex = this.options.zindex;
 }

 if(this.options.ghosting) {
 this._clone = this.element.cloneNode(true);
 Position.absolutize(this.element);
 this.element.parentNode.insertBefore(this._clone, this.element);
 }

 if(this.options.scroll) {
 if (this.options.scroll == window) {
 var where = this._getWindowScroll(this.options.scroll);
 this.originalScrollLeft = where.left;
 this.originalScrollTop = where.top;
 } else {
 this.originalScrollLeft = this.options.scroll.scrollLeft;
 this.originalScrollTop = this.options.scroll.scrollTop;
 }
 }

 Draggables.notify('onStart', this, event);

 if(this.options.starteffect) this.options.starteffect(this.element);
 },

 updateDrag: function(event, pointer) {
 if(!this.dragging) this.startDrag(event);

 if(!this.options.quiet){
 Position.prepare();
 Droppables.show(pointer, this.element);
 }

 Draggables.notify('onDrag', this, event);

 this.draw(pointer);
 if(this.options.change) this.options.change(this);

 if(this.options.scroll) {
 this.stopScrolling();

 var p;
 if (this.options.scroll == window) {
 with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
 } else {
 p = Position.page(this.options.scroll);
 p[0] += this.options.scroll.scrollLeft + Position.deltaX;
 p[1] += this.options.scroll.scrollTop + Position.deltaY;
 p.push(p[0]+this.options.scroll.offsetWidth);
 p.push(p[1]+this.options.scroll.offsetHeight);
 }
 var speed = [0,0];
 if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
 if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
 if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
 if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
 this.startScrolling(speed);
 }

 // fix AppleWebKit rendering
 if(Prototype.Browser.WebKit) window.scrollBy(0,0);

 Event.stop(event);
 },

 finishDrag: function(event, success) {
 this.dragging = false;

 if(this.options.quiet){
 Position.prepare();
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 Droppables.show(pointer, this.element);
 }

 if(this.options.ghosting) {
 Position.relativize(this.element);
 Element.remove(this._clone);
 this._clone = null;
 }

 var dropped = false;
 if(success) {
 dropped = Droppables.fire(event, this.element);
 if (!dropped) dropped = false;
 }
 if(dropped && this.options.onDropped) this.options.onDropped(this.element);
 Draggables.notify('onEnd', this, event);

 var revert = this.options.revert;
 if(revert && typeof revert == 'function') revert = revert(this.element);

 var d = this.currentDelta();
 if(revert && this.options.reverteffect) {
 if (dropped == 0 || revert != 'failure')
 this.options.reverteffect(this.element,
 d[1]-this.delta[1], d[0]-this.delta[0]);
 } else {
 this.delta = d;
 }

 if(this.options.zindex)
 this.element.style.zIndex = this.originalZ;

 if(this.options.endeffect)
 this.options.endeffect(this.element);

 Draggables.deactivate(this);
 Droppables.reset();
 },

 keyPress: function(event) {
 if(event.keyCode!=Event.KEY_ESC) return;
 this.finishDrag(event, false);
 Event.stop(event);
 },

 endDrag: function(event) {
 if(!this.dragging) return;
 this.stopScrolling();
 this.finishDrag(event, true);
 Event.stop(event);
 },

 draw: function(point) {
 var pos = Position.cumulativeOffset(this.element);
 if(this.options.ghosting) {
 var r = Position.realOffset(this.element);
 pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
 }

 var d = this.currentDelta();
 pos[0] -= d[0]; pos[1] -= d[1];

 if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
 pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
 pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
 }

 var p = [0,1].map(function(i){
 return (point[i]-pos[i]-this.offset[i])
 }.bind(this));

 if(this.options.snap) {
 if(typeof this.options.snap == 'function') {
 p = this.options.snap(p[0],p[1],this);
 } else {
 if(this.options.snap instanceof Array) {
 p = p.map( function(v, i) {
 return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
 } else {
 p = p.map( function(v) {
 return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
 }
 }}

 var style = this.element.style;
 if((!this.options.constraint) || (this.options.constraint=='horizontal'))
 style.left = p[0] + "px";
 if((!this.options.constraint) || (this.options.constraint=='vertical'))
 style.top = p[1] + "px";

 if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
 },

 stopScrolling: function() {
 if(this.scrollInterval) {
 clearInterval(this.scrollInterval);
 this.scrollInterval = null;
 Draggables._lastScrollPointer = null;
 }
 },

 startScrolling: function(speed) {
 if(!(speed[0] || speed[1])) return;
 this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
 this.lastScrolled = new Date();
 this.scrollInterval = setInterval(this.scroll.bind(this), 10);
 },

 scroll: function() {
 var current = new Date();
 var delta = current - this.lastScrolled;
 this.lastScrolled = current;
 if(this.options.scroll == window) {
 with (this._getWindowScroll(this.options.scroll)) {
 if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
 var d = delta / 1000;
 this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
 }
 }
 } else {
 this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
 this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000;
 }

 Position.prepare();
 Droppables.show(Draggables._lastPointer, this.element);
 Draggables.notify('onDrag', this);
 if (this._isScrollChild) {
 Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
 Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
 Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
 if (Draggables._lastScrollPointer[0] < 0)
 Draggables._lastScrollPointer[0] = 0;
 if (Draggables._lastScrollPointer[1] < 0)
 Draggables._lastScrollPointer[1] = 0;
 this.draw(Draggables._lastScrollPointer);
 }

 if(this.options.change) this.options.change(this);
 },

 _getWindowScroll: function(w) {
 var T, L, W, H;
 with (w.document) {
 if (w.document.documentElement && documentElement.scrollTop) {
 T = documentElement.scrollTop;
 L = documentElement.scrollLeft;
 } else if (w.document.body) {
 T = body.scrollTop;
 L = body.scrollLeft;
 }
 if (w.innerWidth) {
 W = w.innerWidth;
 H = w.innerHeight;
 } else if (w.document.documentElement && documentElement.clientWidth) {
 W = documentElement.clientWidth;
 H = documentElement.clientHeight;
 } else {
 W = body.offsetWidth;
 H = body.offsetHeight
 }
 }
 return { top: T, left: L, width: W, height: H };
 }
}

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create();
SortableObserver.prototype = {
 initialize: function(element, observer) {
 this.element = $(element);
 this.observer = observer;
 this.lastValue = Sortable.serialize(this.element);
 },

 onStart: function() {
 this.lastValue = Sortable.serialize(this.element);
 },

 onEnd: function() {
 Sortable.unmark();
 if(this.lastValue != Sortable.serialize(this.element))
 this.observer(this.element)
 }
}

var Sortable = {
 SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

 sortables: {},

 _findRootElement: function(element) {
 while (element.tagName.toUpperCase() != "BODY") {
 if(element.id && Sortable.sortables[element.id]) return element;
 element = element.parentNode;
 }
 },

 options: function(element) {
 element = Sortable._findRootElement($(element));
 if(!element) return;
 return Sortable.sortables[element.id];
 },

 destroy: function(element){
 var s = Sortable.options(element);

 if(s) {
 Draggables.removeObserver(s.element);
 s.droppables.each(function(d){ Droppables.remove(d) });
 s.draggables.invoke('destroy');

 delete Sortable.sortables[s.element.id];
 }
 },

 create: function(element) {
 element = $(element);
 var options = Object.extend({
 element: element,
 tag: 'li', // assumes li children, override with tag: 'tagname'
 dropOnEmpty: false,
 tree: false,
 treeTag: 'ul',
 overlap: 'vertical', // one of 'vertical', 'horizontal'
 constraint: 'vertical', // one of 'vertical', 'horizontal', false
 containment: element, // also takes array of elements (or id's); or false
 handle: false, // or a CSS class
 only: false,
 delay: 0,
 hoverclass: null,
 ghosting: false,
 quiet: false,
 scroll: false,
 scrollSensitivity: 20,
 scrollSpeed: 15,
 format: this.SERIALIZE_RULE,

 // these take arrays of elements or ids and can be
 // used for better initialization performance
 elements: false,
 handles: false,

 onChange: Prototype.emptyFunction,
 onUpdate: Prototype.emptyFunction
 }, arguments[1] || {});

 // clear any old sortable with same element
 this.destroy(element);

 // build options for the draggables
 var options_for_draggable = {
 revert: true,
 quiet: options.quiet,
 scroll: options.scroll,
 scrollSpeed: options.scrollSpeed,
 scrollSensitivity: options.scrollSensitivity,
 delay: options.delay,
 ghosting: options.ghosting,
 constraint: options.constraint,
 handle: options.handle };

 if(options.starteffect)
 options_for_draggable.starteffect = options.starteffect;

 if(options.reverteffect)
 options_for_draggable.reverteffect = options.reverteffect;
 else
 if(options.ghosting) options_for_draggable.reverteffect = function(element) {
 element.style.top = 0;
 element.style.left = 0;
 };

 if(options.endeffect)
 options_for_draggable.endeffect = options.endeffect;

 if(options.zindex)
 options_for_draggable.zindex = options.zindex;

 // build options for the droppables
 var options_for_droppable = {
 overlap: options.overlap,
 containment: options.containment,
 tree: options.tree,
 hoverclass: options.hoverclass,
 onHover: Sortable.onHover
 }

 var options_for_tree = {
 onHover: Sortable.onEmptyHover,
 overlap: options.overlap,
 containment: options.containment,
 hoverclass: options.hoverclass
 }

 // fix for gecko engine
 Element.cleanWhitespace(element);

 options.draggables = [];
 options.droppables = [];

 // drop on empty handling
 if(options.dropOnEmpty || options.tree) {
 Droppables.add(element, options_for_tree);
 options.droppables.push(element);
 }

 (options.elements || this.findElements(element, options) || []).each( function(e,i) {
 var handle = options.handles ? $(options.handles[i]) :
 (options.handle ? $(e).getElementsByClassName(options.handle)[0] : e);
 options.draggables.push(
 new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
 Droppables.add(e, options_for_droppable);
 if(options.tree) e.treeNode = element;
 options.droppables.push(e);
 });

 if(options.tree) {
 (Sortable.findTreeElements(element, options) || []).each( function(e) {
 Droppables.add(e, options_for_tree);
 e.treeNode = element;
 options.droppables.push(e);
 });
 }

 // keep reference
 this.sortables[element.id] = options;

 // for onupdate
 Draggables.addObserver(new SortableObserver(element, options.onUpdate));

 },

 // return all suitable-for-sortable elements in a guaranteed order
 findElements: function(element, options) {
 return Element.findChildren(
 element, options.only, options.tree ? true : false, options.tag);
 },

 findTreeElements: function(element, options) {
 return Element.findChildren(
 element, options.only, options.tree ? true : false, options.treeTag);
 },

 onHover: function(element, dropon, overlap) {
 if(Element.isParent(dropon, element)) return;

 if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
 return;
 } else if(overlap>0.5) {
 Sortable.mark(dropon, 'before');
 if(dropon.previousSibling != element) {
 var oldParentNode = element.parentNode;
 element.style.visibility = "hidden"; // fix gecko rendering
 dropon.parentNode.insertBefore(element, dropon);
 if(dropon.parentNode!=oldParentNode)
 Sortable.options(oldParentNode).onChange(element);
 Sortable.options(dropon.parentNode).onChange(element);
 }
 } else {
 Sortable.mark(dropon, 'after');
 var nextElement = dropon.nextSibling || null;
 if(nextElement != element) {
 var oldParentNode = element.parentNode;
 element.style.visibility = "hidden"; // fix gecko rendering
 dropon.parentNode.insertBefore(element, nextElement);
 if(dropon.parentNode!=oldParentNode)
 Sortable.options(oldParentNode).onChange(element);
 Sortable.options(dropon.parentNode).onChange(element);
 }
 }
 },

 onEmptyHover: function(element, dropon, overlap) {
 var oldParentNode = element.parentNode;
 var droponOptions = Sortable.options(dropon);

 if(!Element.isParent(dropon, element)) {
 var index;

 var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
 var child = null;

 if(children) {
 var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

 for (index = 0; index < children.length; index += 1) {
 if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
 offset -= Element.offsetSize (children[index], droponOptions.overlap);
 } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
 child = index + 1 < children.length ? children[index + 1] : null;
 break;
 } else {
 child = children[index];
 break;
 }
 }
 }

 dropon.insertBefore(element, child);

 Sortable.options(oldParentNode).onChange(element);
 droponOptions.onChange(element);
 }
 },

 unmark: function() {
 if(Sortable._marker) Sortable._marker.hide();
 },

 mark: function(dropon, position) {
 // mark on ghosting only
 var sortable = Sortable.options(dropon.parentNode);
 if(sortable && !sortable.ghosting) return;

 if(!Sortable._marker) {
 Sortable._marker =
 ($('dropmarker') || Element.extend(document.createElement('DIV'))).
 hide().addClassName('dropmarker').setStyle({position:'absolute'});
 document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
 }
 var offsets = Position.cumulativeOffset(dropon);
 Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});

 if(position=='after')
 if(sortable.overlap == 'horizontal')
 Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
 else
 Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});

 Sortable._marker.show();
 },

 _tree: function(element, options, parent) {
 var children = Sortable.findElements(element, options) || [];

 for (var i = 0; i < children.length; ++i) {
 var match = children[i].id.match(options.format);

 if (!match) continue;

 var child = {
 id: encodeURIComponent(match ? match[1] : null),
 element: element,
 parent: parent,
 children: [],
 position: parent.children.length,
 container: $(children[i]).down(options.treeTag)
 }

 /* Get the element containing the children and recurse over it */
 if (child.container)
 this._tree(child.container, options, child)

 parent.children.push (child);
 }

 return parent;
 },

 tree: function(element) {
 element = $(element);
 var sortableOptions = this.options(element);
 var options = Object.extend({
 tag: sortableOptions.tag,
 treeTag: sortableOptions.treeTag,
 only: sortableOptions.only,
 name: element.id,
 format: sortableOptions.format
 }, arguments[1] || {});

 var root = {
 id: null,
 parent: null,
 children: [],
 container: element,
 position: 0
 }

 return Sortable._tree(element, options, root);
 },

 /* Construct a [i] index for a particular node */
 _constructIndex: function(node) {
 var index = '';
 do {
 if (node.id) index = '[' + node.position + ']' + index;
 } while ((node = node.parent) != null);
 return index;
 },

 sequence: function(element) {
 element = $(element);
 var options = Object.extend(this.options(element), arguments[1] || {});

 return $(this.findElements(element, options) || []).map( function(item) {
 return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
 });
 },

 setSequence: function(element, new_sequence) {
 element = $(element);
 var options = Object.extend(this.options(element), arguments[2] || {});

 var nodeMap = {};
 this.findElements(element, options).each( function(n) {
 if (n.id.match(options.format))
 nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
 n.parentNode.removeChild(n);
 });

 new_sequence.each(function(ident) {
 var n = nodeMap[ident];
 if (n) {
 n[1].appendChild(n[0]);
 delete nodeMap[ident];
 }
 });
 },

 serialize: function(element) {
 element = $(element);
 var options = Object.extend(Sortable.options(element), arguments[1] || {});
 var name = encodeURIComponent(
 (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

 if (options.tree) {
 return Sortable.tree(element, arguments[1]).children.map( function (item) {
 return [name + Sortable._constructIndex(item) + "[id]=" +
 encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
 }).flatten().join('&');
 } else {
 return Sortable.sequence(element, arguments[1]).map( function(item) {
 return name + "[]=" + encodeURIComponent(item);
 }).join('&');
 }
 }
}

// Returns true if child is contained within element
Element.isParent = function(child, element) {
 if (!child.parentNode || child == element) return false;
 if (child.parentNode == element) return true;
 return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName) {
 if(!element.hasChildNodes()) return null;
 tagName = tagName.toUpperCase();
 if(only) only = [only].flatten();
 var elements = [];
 $A(element.childNodes).each( function(e) {
 if(e.tagName && e.tagName.toUpperCase()==tagName &&
 (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
 elements.push(e);
 if(recursive) {
 var grandchildren = Element.findChildren(e, only, recursive, tagName);
 if(grandchildren) elements.push(grandchildren);
 }
 });

 return (elements.length>0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type) {
 return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
}

// script.aculo.us controls.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
// (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
// Contributors:
// Richard Livsey
// Rahul Bhargava
// Rob Wills
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality 
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least, 
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method 
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most 
// useful when one of the tokens is \n (a newline), as it 
// allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
 throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = {}
Autocompleter.Base = function() {};
Autocompleter.Base.prototype = {
 baseInitialize: function(element, update, options) {
 element = $(element)
 this.element = element; 
 this.update = $(update); 
 this.hasFocus = false; 
 this.changed = false; 
 this.active = false; 
 this.index = 0; 
 this.entryCount = 0;

 if(this.setOptions)
 this.setOptions(options);
 else
 this.options = options || {};

 this.options.paramName = this.options.paramName || this.element.name;
 this.options.tokens = this.options.tokens || [];
 this.options.frequency = this.options.frequency || 0.4;
 this.options.minChars = this.options.minChars || 1;
 this.options.onShow = this.options.onShow || 
 function(element, update){ 
 if(!update.style.position || update.style.position=='absolute') {
 update.style.position = 'absolute';
 Position.clone(element, update, {
 setHeight: false, 
 offsetTop: element.offsetHeight
 });
 }
 Effect.Appear(update,{duration:0.15});
 };
 this.options.onHide = this.options.onHide || 
 function(element, update){ new Effect.Fade(update,{duration:0.15}) };

 if(typeof(this.options.tokens) == 'string') 
 this.options.tokens = new Array(this.options.tokens);

 this.observer = null;
 
 this.element.setAttribute('autocomplete','off');

 Element.hide(this.update);

 Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
 Event.observe(this.element, 'keypress', this.onKeyPress.bindAsEventListener(this));

 // Turn autocomplete back on when the user leaves the page, so that the
 // field's value will be remembered on Mozilla-based browsers.
 Event.observe(window, 'beforeunload', function(){ 
 element.setAttribute('autocomplete', 'on'); 
 });
 },

 show: function() {
 if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
 if(!this.iefix && 
 (Prototype.Browser.IE) &&
 (Element.getStyle(this.update, 'position')=='absolute')) {
 new Insertion.After(this.update, 
 '<iframe id="' + this.update.id + '_iefix" '+
 'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
 'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
 this.iefix = $(this.update.id+'_iefix');
 }
 if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
 },
 
 fixIEOverlapping: function() {
 Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
 this.iefix.style.zIndex = 1;
 this.update.style.zIndex = 2;
 Element.show(this.iefix);
 },

 hide: function() {
 this.stopIndicator();
 if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
 if(this.iefix) Element.hide(this.iefix);
 },

 startIndicator: function() {
 if(this.options.indicator) Element.show(this.options.indicator);
 },

 stopIndicator: function() {
 if(this.options.indicator) Element.hide(this.options.indicator);
 },

 onKeyPress: function(event) {
 if(this.active)
 switch(event.keyCode) {
 case Event.KEY_TAB:
 case Event.KEY_RETURN:
 this.selectEntry();
 Event.stop(event);
 case Event.KEY_ESC:
 this.hide();
 this.active = false;
 Event.stop(event);
 return;
 case Event.KEY_LEFT:
 case Event.KEY_RIGHT:
 return;
 case Event.KEY_UP:
 this.markPrevious();
 this.render();
 if(Prototype.Browser.WebKit) Event.stop(event);
 return;
 case Event.KEY_DOWN:
 this.markNext();
 this.render();
 if(Prototype.Browser.WebKit) Event.stop(event);
 return;
 }
 else 
 if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN || 
 (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

 this.changed = true;
 this.hasFocus = true;

 if(this.observer) clearTimeout(this.observer);
 this.observer = 
 setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
 },

 activate: function() {
 this.changed = false;
 this.hasFocus = true;
 this.getUpdatedChoices();
 },

 onHover: function(event) {
 var element = Event.findElement(event, 'LI');
 if(this.index != element.autocompleteIndex) 
 {
 this.index = element.autocompleteIndex;
 this.render();
 }
 Event.stop(event);
 },
 
 onClick: function(event) {
 var element = Event.findElement(event, 'LI');
 this.index = element.autocompleteIndex;
 this.selectEntry();
 this.hide();
 },
 
 onBlur: function(event) {
 // needed to make click events working
 setTimeout(this.hide.bind(this), 250);
 this.hasFocus = false;
 this.active = false; 
 }, 
 
 render: function() {
 if(this.entryCount > 0) {
 for (var i = 0; i < this.entryCount; i++)
 this.index==i ? 
 Element.addClassName(this.getEntry(i),"selected") : 
 Element.removeClassName(this.getEntry(i),"selected");
 if(this.hasFocus) { 
 this.show();
 this.active = true;
 }
 } else {
 this.active = false;
 this.hide();
 }
 },
 
 markPrevious: function() {
 if(this.index > 0) this.index--
 else this.index = this.entryCount-1;
 this.getEntry(this.index).scrollIntoView(true);
 },
 
 markNext: function() {
 if(this.index < this.entryCount-1) this.index++
 else this.index = 0;
 this.getEntry(this.index).scrollIntoView(false);
 },
 
 getEntry: function(index) {
 return this.update.firstChild.childNodes[index];
 },
 
 getCurrentEntry: function() {
 return this.getEntry(this.index);
 },
 
 selectEntry: function() {
 this.active = false;
 this.updateElement(this.getCurrentEntry());
 },

 updateElement: function(selectedElement) {
 if (this.options.updateElement) {
 this.options.updateElement(selectedElement);
 return;
 }
 var value = '';
 if (this.options.select) {
 var nodes = document.getElementsByClassName(this.options.select, selectedElement) || [];
 if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
 } else
 value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
 
 var lastTokenPos = this.findLastToken();
 if (lastTokenPos != -1) {
 var newValue = this.element.value.substr(0, lastTokenPos + 1);
 var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/);
 if (whitespace)
 newValue += whitespace[0];
 this.element.value = newValue + value;
 } else {
 this.element.value = value;
 }
 this.element.focus();
 
 if (this.options.afterUpdateElement)
 this.options.afterUpdateElement(this.element, selectedElement);
 },

 updateChoices: function(choices) {
 if(!this.changed && this.hasFocus) {
 this.update.innerHTML = choices;
 Element.cleanWhitespace(this.update);
 Element.cleanWhitespace(this.update.down());

 if(this.update.firstChild && this.update.down().childNodes) {
 this.entryCount = 
 this.update.down().childNodes.length;
 for (var i = 0; i < this.entryCount; i++) {
 var entry = this.getEntry(i);
 entry.autocompleteIndex = i;
 this.addObservers(entry);
 }
 } else { 
 this.entryCount = 0;
 }

 this.stopIndicator();
 this.index = 0;
 
 if(this.entryCount==1 && this.options.autoSelect) {
 this.selectEntry();
 this.hide();
 } else {
 this.render();
 }
 }
 },

 addObservers: function(element) {
 Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
 Event.observe(element, "click", this.onClick.bindAsEventListener(this));
 },

 onObserverEvent: function() {
 this.changed = false; 
 if(this.getToken().length>=this.options.minChars) {
 this.getUpdatedChoices();
 } else {
 this.active = false;
 this.hide();
 }
 },

 getToken: function() {
 var tokenPos = this.findLastToken();
 if (tokenPos != -1)
 var ret = this.element.value.substr(tokenPos + 1).replace(/^\s+/,'').replace(/\s+$/,'');
 else
 var ret = this.element.value;

 return /\n/.test(ret) ? '' : ret;
 },

 findLastToken: function() {
 var lastTokenPos = -1;

 for (var i=0; i<this.options.tokens.length; i++) {
 var thisTokenPos = this.element.value.lastIndexOf(this.options.tokens[i]);
 if (thisTokenPos > lastTokenPos)
 lastTokenPos = thisTokenPos;
 }
 return lastTokenPos;
 }
}

Ajax.Autocompleter = Class.create();
Object.extend(Object.extend(Ajax.Autocompleter.prototype, Autocompleter.Base.prototype), {
 initialize: function(element, update, url, options) {
 this.baseInitialize(element, update, options);
 this.options.asynchronous = true;
 this.options.onComplete = this.onComplete.bind(this);
 this.options.defaultParams = this.options.parameters || null;
 this.url = url;
 },

 getUpdatedChoices: function() {
 this.startIndicator();
 
 var entry = encodeURIComponent(this.options.paramName) + '=' + 
 encodeURIComponent(this.getToken());

 this.options.parameters = this.options.callback ?
 this.options.callback(this.element, entry) : entry;

 if(this.options.defaultParams) 
 this.options.parameters += '&' + this.options.defaultParams;
 
 new Ajax.Request(this.url, this.options);
 },

 onComplete: function(request) {
 this.updateChoices(request.responseText);
 }

});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
// text only at the beginning of strings in the 
// autocomplete array. Defaults to true, which will
// match text at the beginning of any *word* in the
// strings in the autocomplete array. If you want to
// search anywhere in the string, additionally set
// the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
// a partial match (unlike minChars, which defines
// how many characters are required to do any match
// at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
// Defaults to true.
//
// It's possible to pass in a custom function as the 'selector' 
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create();
Autocompleter.Local.prototype = Object.extend(new Autocompleter.Base(), {
 initialize: function(element, update, array, options) {
 this.baseInitialize(element, update, options);
 this.options.array = array;
 },

 getUpdatedChoices: function() {
 this.updateChoices(this.options.selector(this));
 },

 setOptions: function(options) {
 this.options = Object.extend({
 choices: 10,
 partialSearch: true,
 partialChars: 2,
 ignoreCase: true,
 fullSearch: false,
 selector: function(instance) {
 var ret = []; // Beginning matches
 var partial = []; // Inside matches
 var entry = instance.getToken();
 var count = 0;

 for (var i = 0; i < instance.options.array.length && 
 ret.length < instance.options.choices ; i++) { 

 var elem = instance.options.array[i];
 var foundPos = instance.options.ignoreCase ? 
 elem.toLowerCase().indexOf(entry.toLowerCase()) : 
 elem.indexOf(entry);

 while (foundPos != -1) {
 if (foundPos == 0 && elem.length != entry.length) { 
 ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" + 
 elem.substr(entry.length) + "</li>");
 break;
 } else if (entry.length >= instance.options.partialChars && 
 instance.options.partialSearch && foundPos != -1) {
 if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
 partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
 elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
 foundPos + entry.length) + "</li>");
 break;
 }
 }

 foundPos = instance.options.ignoreCase ? 
 elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : 
 elem.indexOf(entry, foundPos + 1);

 }
 }
 if (partial.length)
 ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
 return "<ul>" + ret.join('') + "</ul>";
 }
 }, options || {});
 }
});

// AJAX in-place editor
//
// see documentation on http://wiki.script.aculo.us/scriptaculous/show/Ajax.InPlaceEditor

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
 setTimeout(function() {
 Field.activate(field);
 }, 1);
}

Ajax.InPlaceEditor = Class.create();
Ajax.InPlaceEditor.defaultHighlightColor = "#FFFF99";
Ajax.InPlaceEditor.prototype = {
 initialize: function(element, url, options) {
 this.url = url;
 this.element = $(element);

 this.options = Object.extend({
 paramName: "value",
 okButton: true,
 okLink: false,
 okText: "ok",
 cancelButton: false,
 cancelLink: true,
 cancelText: "cancel",
 textBeforeControls: '',
 textBetweenControls: '',
 textAfterControls: '',
 savingText: "Saving...",
 clickToEditText: "Click to edit",
 okText: "ok",
 rows: 1,
 onComplete: function(transport, element) {
 new Effect.Highlight(element, {startcolor: this.options.highlightcolor});
 },
 onFailure: function(transport) {
 alert("Error communicating with the server: " + transport.responseText.stripTags());
 },
 callback: function(form) {
 return Form.serialize(form);
 },
 handleLineBreaks: true,
 loadingText: 'Loading...',
 savingClassName: 'inplaceeditor-saving',
 loadingClassName: 'inplaceeditor-loading',
 formClassName: 'inplaceeditor-form',
 highlightcolor: Ajax.InPlaceEditor.defaultHighlightColor,
 highlightendcolor: "#FFFFFF",
 externalControl: null,
 submitOnBlur: false,
 ajaxOptions: {},
 evalScripts: false
 }, options || {});

 if(!this.options.formId && this.element.id) {
 this.options.formId = this.element.id + "-inplaceeditor";
 if ($(this.options.formId)) {
 // there's already a form with that name, don't specify an id
 this.options.formId = null;
 }
 }
 
 if (this.options.externalControl) {
 this.options.externalControl = $(this.options.externalControl);
 }
 
 this.originalBackground = Element.getStyle(this.element, 'background-color');
 if (!this.originalBackground) {
 this.originalBackground = "transparent";
 }
 
 this.element.title = this.options.clickToEditText;
 
 this.onclickListener = this.enterEditMode.bindAsEventListener(this);
 this.mouseoverListener = this.enterHover.bindAsEventListener(this);
 this.mouseoutListener = this.leaveHover.bindAsEventListener(this);
 Event.observe(this.element, 'click', this.onclickListener);
 Event.observe(this.element, 'mouseover', this.mouseoverListener);
 Event.observe(this.element, 'mouseout', this.mouseoutListener);
 if (this.options.externalControl) {
 Event.observe(this.options.externalControl, 'click', this.onclickListener);
 Event.observe(this.options.externalControl, 'mouseover', this.mouseoverListener);
 Event.observe(this.options.externalControl, 'mouseout', this.mouseoutListener);
 }
 },
 enterEditMode: function(evt) {
 if (this.saving) return;
 if (this.editing) return;
 this.editing = true;
 this.onEnterEditMode();
 if (this.options.externalControl) {
 Element.hide(this.options.externalControl);
 }
 Element.hide(this.element);
 this.createForm();
 this.element.parentNode.insertBefore(this.form, this.element);
 if (!this.options.loadTextURL) Field.scrollFreeActivate(this.editField);
 // stop the event to avoid a page refresh in Safari
 if (evt) {
 Event.stop(evt);
 }
 return false;
 },
 createForm: function() {
 this.form = document.createElement("form");
 this.form.id = this.options.formId;
 Element.addClassName(this.form, this.options.formClassName)
 this.form.onsubmit = this.onSubmit.bind(this);

 this.createEditField();

 if (this.options.textarea) {
 var br = document.createElement("br");
 this.form.appendChild(br);
 }
 
 if (this.options.textBeforeControls)
 this.form.appendChild(document.createTextNode(this.options.textBeforeControls));

 if (this.options.okButton) {
 var okButton = document.createElement("input");
 okButton.type = "submit";
 okButton.value = this.options.okText;
 okButton.className = 'editor_ok_button';
 this.form.appendChild(okButton);
 }
 
 if (this.options.okLink) {
 var okLink = document.createElement("a");
 okLink.href = "#";
 okLink.appendChild(document.createTextNode(this.options.okText));
 okLink.onclick = this.onSubmit.bind(this);
 okLink.className = 'editor_ok_link';
 this.form.appendChild(okLink);
 }
 
 if (this.options.textBetweenControls && 
 (this.options.okLink || this.options.okButton) && 
 (this.options.cancelLink || this.options.cancelButton))
 this.form.appendChild(document.createTextNode(this.options.textBetweenControls));
 
 if (this.options.cancelButton) {
 var cancelButton = document.createElement("input");
 cancelButton.type = "submit";
 cancelButton.value = this.options.cancelText;
 cancelButton.onclick = this.onclickCancel.bind(this);
 cancelButton.className = 'editor_cancel_button';
 this.form.appendChild(cancelButton);
 }

 if (this.options.cancelLink) {
 var cancelLink = document.createElement("a");
 cancelLink.href = "#";
 cancelLink.appendChild(document.createTextNode(this.options.cancelText));
 cancelLink.onclick = this.onclickCancel.bind(this);
 cancelLink.className = 'editor_cancel editor_cancel_link'; 
 this.form.appendChild(cancelLink);
 }
 
 if (this.options.textAfterControls)
 this.form.appendChild(document.createTextNode(this.options.textAfterControls));
 },
 hasHTMLLineBreaks: function(string) {
 if (!this.options.handleLineBreaks) return false;
 return string.match(/<br/i) || string.match(/<p>/i);
 },
 convertHTMLLineBreaks: function(string) {
 return string.replace(/<br>/gi, "\n").replace(/<br\/>/gi, "\n").replace(/<\/p>/gi, "\n").replace(/<p>/gi, "");
 },
 createEditField: function() {
 var text;
 if(this.options.loadTextURL) {
 text = this.options.loadingText;
 } else {
 text = this.getText();
 }

 var obj = this;
 
 if (this.options.rows == 1 && !this.hasHTMLLineBreaks(text)) {
 this.options.textarea = false;
 var textField = document.createElement("input");
 textField.obj = this;
 textField.type = "text";
 textField.name = this.options.paramName;
 textField.value = text;
 textField.style.backgroundColor = this.options.highlightcolor;
 textField.className = 'editor_field';
 var size = this.options.size || this.options.cols || 0;
 if (size != 0) textField.size = size;
 if (this.options.submitOnBlur)
 textField.onblur = this.onSubmit.bind(this);
 this.editField = textField;
 } else {
 this.options.textarea = true;
 var textArea = document.createElement("textarea");
 textArea.obj = this;
 textArea.name = this.options.paramName;
 textArea.value = this.convertHTMLLineBreaks(text);
 textArea.rows = this.options.rows;
 textArea.cols = this.options.cols || 40;
 textArea.className = 'editor_field'; 
 if (this.options.submitOnBlur)
 textArea.onblur = this.onSubmit.bind(this);
 this.editField = textArea;
 }
 
 if(this.options.loadTextURL) {
 this.loadExternalText();
 }
 this.form.appendChild(this.editField);
 },
 getText: function() {
 return this.element.innerHTML;
 },
 loadExternalText: function() {
 Element.addClassName(this.form, this.options.loadingClassName);
 this.editField.disabled = true;
 new Ajax.Request(
 this.options.loadTextURL,
 Object.extend({
 asynchronous: true,
 onComplete: this.onLoadedExternalText.bind(this)
 }, this.options.ajaxOptions)
 );
 },
 onLoadedExternalText: function(transport) {
 Element.removeClassName(this.form, this.options.loadingClassName);
 this.editField.disabled = false;
 this.editField.value = transport.responseText.stripTags();
 Field.scrollFreeActivate(this.editField);
 },
 onclickCancel: function() {
 this.onComplete();
 this.leaveEditMode();
 return false;
 },
 onFailure: function(transport) {
 this.options.onFailure(transport);
 if (this.oldInnerHTML) {
 this.element.innerHTML = this.oldInnerHTML;
 this.oldInnerHTML = null;
 }
 return false;
 },
 onSubmit: function() {
 // onLoading resets these so we need to save them away for the Ajax call
 var form = this.form;
 var value = this.editField.value;
 
 // do this first, sometimes the ajax call returns before we get a chance to switch on Saving...
 // which means this will actually switch on Saving... *after* we've left edit mode causing Saving...
 // to be displayed indefinitely
 this.onLoading();
 
 if (this.options.evalScripts) {
 new Ajax.Request(
 this.url, Object.extend({
 parameters: this.options.callback(form, value),
 onComplete: this.onComplete.bind(this),
 onFailure: this.onFailure.bind(this),
 asynchronous:true, 
 evalScripts:true
 }, this.options.ajaxOptions));
 } else {
 new Ajax.Updater(
 { success: this.element,
 // don't update on failure (this could be an option)
 failure: null }, 
 this.url, Object.extend({
 parameters: this.options.callback(form, value),
 onComplete: this.onComplete.bind(this),
 onFailure: this.onFailure.bind(this)
 }, this.options.ajaxOptions));
 }
 // stop the event to avoid a page refresh in Safari
 if (arguments.length > 1) {
 Event.stop(arguments[0]);
 }
 return false;
 },
 onLoading: function() {
 this.saving = true;
 this.removeForm();
 this.leaveHover();
 this.showSaving();
 },
 showSaving: function() {
 this.oldInnerHTML = this.element.innerHTML;
 this.element.innerHTML = this.options.savingText;
 Element.addClassName(this.element, this.options.savingClassName);
 this.element.style.backgroundColor = this.originalBackground;
 Element.show(this.element);
 },
 removeForm: function() {
 if(this.form) {
 if (this.form.parentNode) Element.remove(this.form);
 this.form = null;
 }
 },
 enterHover: function() {
 if (this.saving) return;
 this.element.style.backgroundColor = this.options.highlightcolor;
 if (this.effect) {
 this.effect.cancel();
 }
 Element.addClassName(this.element, this.options.hoverClassName)
 },
 leaveHover: function() {
 if (this.options.backgroundColor) {
 this.element.style.backgroundColor = this.oldBackground;
 }
 Element.removeClassName(this.element, this.options.hoverClassName)
 if (this.saving) return;
 this.effect = new Effect.Highlight(this.element, {
 startcolor: this.options.highlightcolor,
 endcolor: this.options.highlightendcolor,
 restorecolor: this.originalBackground
 });
 },
 leaveEditMode: function() {
 Element.removeClassName(this.element, this.options.savingClassName);
 this.removeForm();
 this.leaveHover();
 this.element.style.backgroundColor = this.originalBackground;
 Element.show(this.element);
 if (this.options.externalControl) {
 Element.show(this.options.externalControl);
 }
 this.editing = false;
 this.saving = false;
 this.oldInnerHTML = null;
 this.onLeaveEditMode();
 },
 onComplete: function(transport) {
 this.leaveEditMode();
 this.options.onComplete.bind(this)(transport, this.element);
 },
 onEnterEditMode: function() {},
 onLeaveEditMode: function() {},
 dispose: function() {
 if (this.oldInnerHTML) {
 this.element.innerHTML = this.oldInnerHTML;
 }
 this.leaveEditMode();
 Event.stopObserving(this.element, 'click', this.onclickListener);
 Event.stopObserving(this.element, 'mouseover', this.mouseoverListener);
 Event.stopObserving(this.element, 'mouseout', this.mouseoutListener);
 if (this.options.externalControl) {
 Event.stopObserving(this.options.externalControl, 'click', this.onclickListener);
 Event.stopObserving(this.options.externalControl, 'mouseover', this.mouseoverListener);
 Event.stopObserving(this.options.externalControl, 'mouseout', this.mouseoutListener);
 }
 }
};

Ajax.InPlaceCollectionEditor = Class.create();
Object.extend(Ajax.InPlaceCollectionEditor.prototype, Ajax.InPlaceEditor.prototype);
Object.extend(Ajax.InPlaceCollectionEditor.prototype, {
 createEditField: function() {
 if (!this.cached_selectTag) {
 var selectTag = document.createElement("select");
 var collection = this.options.collection || [];
 var optionTag;
 collection.each(function(e,i) {
 optionTag = document.createElement("option");
 optionTag.value = (e instanceof Array) ? e[0] : e;
 if((typeof this.options.value == 'undefined') && 
 ((e instanceof Array) ? this.element.innerHTML == e[1] : e == optionTag.value)) optionTag.selected = true;
 if(this.options.value==optionTag.value) optionTag.selected = true;
 optionTag.appendChild(document.createTextNode((e instanceof Array) ? e[1] : e));
 selectTag.appendChild(optionTag);
 }.bind(this));
 this.cached_selectTag = selectTag;
 }

 this.editField = this.cached_selectTag;
 if(this.options.loadTextURL) this.loadExternalText();
 this.form.appendChild(this.editField);
 this.options.callback = function(form, value) {
 return "value=" + encodeURIComponent(value);
 }
 }
});

// Delayed observer, like Form.Element.Observer, 
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create();
Form.Element.DelayedObserver.prototype = {
 initialize: function(element, delay, callback) {
 this.delay = delay || 0.5;
 this.element = $(element);
 this.callback = callback;
 this.timer = null;
 this.lastValue = $F(this.element); 
 Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
 },
 delayedListener: function(event) {
 if(this.lastValue == $F(this.element)) return;
 if(this.timer) clearTimeout(this.timer);
 this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
 this.lastValue = $F(this.element);
 },
 onTimerEvent: function() {
 this.timer = null;
 this.callback(this.element, $F(this.element));
 }
};

// script.aculo.us slider.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007

// Copyright (c) 2005-2007 Marty Haught, Thomas Fuchs
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(!Control) var Control = {};
Control.Slider = Class.create();

// options:
// axis: 'vertical', or 'horizontal' (default)
//
// callbacks:
// onChange(value)
// onSlide(value)
Control.Slider.prototype = {
 initialize: function(handle, track, options) {
 var slider = this;

 if(handle instanceof Array) {
 this.handles = handle.collect( function(e) { return $(e) });
 } else {
 this.handles = [$(handle)];
 }

 this.track = $(track);
 this.options = options || {};

 this.axis = this.options.axis || 'horizontal';
 this.increment = this.options.increment || 1;
 this.step = parseInt(this.options.step || '1');
 this.range = this.options.range || $R(0,1);

 this.value = 0; // assure backwards compat
 this.values = this.handles.map( function() { return 0 });
 this.spans = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
 this.options.startSpan = $(this.options.startSpan || null);
 this.options.endSpan = $(this.options.endSpan || null);

 this.restricted = this.options.restricted || false;

 this.maximum = this.options.maximum || this.range.end;
 this.minimum = this.options.minimum || this.range.start;

 // Will be used to align the handle onto the track, if necessary
 this.alignX = parseInt(this.options.alignX || '0');
 this.alignY = parseInt(this.options.alignY || '0');

 this.trackLength = this.maximumOffset() - this.minimumOffset();

 this.handleLength = this.isVertical() ?
 (this.handles[0].offsetHeight != 0 ?
 this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) :
 (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth :
 this.handles[0].style.width.replace(/px$/,""));

 this.active = false;
 this.dragging = false;
 this.disabled = false;

 if(this.options.disabled) this.setDisabled();

 // Allowed values array
 this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
 if(this.allowedValues) {
 this.minimum = this.allowedValues.min();
 this.maximum = this.allowedValues.max();
 }

 this.eventMouseDown = this.startDrag.bindAsEventListener(this);
 this.eventMouseUp = this.endDrag.bindAsEventListener(this);
 this.eventMouseMove = this.update.bindAsEventListener(this);

 // Initialize handles in reverse (make sure first handle is active)
 this.handles.each( function(h,i) {
 i = slider.handles.length-1-i;
 slider.setValue(parseFloat(
 (slider.options.sliderValue instanceof Array ?
 slider.options.sliderValue[i] : slider.options.sliderValue) ||
 slider.range.start), i);
 Element.makePositioned(h); // fix IE
 Event.observe(h, "mousedown", slider.eventMouseDown);
 });

 Event.observe(this.track, "mousedown", this.eventMouseDown);
 Event.observe(document, "mouseup", this.eventMouseUp);
 Event.observe(this.track.parentNode.parentNode, "mousemove", this.eventMouseMove);

 this.initialized = true;
 },
 dispose: function() {
 var slider = this;
 Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
 Event.stopObserving(document, "mouseup", this.eventMouseUp);
 Event.stopObserving(this.track.parentNode.parentNode, "mousemove", this.eventMouseMove);
 this.handles.each( function(h) {
 Event.stopObserving(h, "mousedown", slider.eventMouseDown);
 });
 },
 setDisabled: function(){
 this.disabled = true;
 },
 setEnabled: function(){
 this.disabled = false;
 },
 getNearestValue: function(value){
 if(this.allowedValues){
 if(value >= this.allowedValues.max()) return(this.allowedValues.max());
 if(value <= this.allowedValues.min()) return(this.allowedValues.min());

 var offset = Math.abs(this.allowedValues[0] - value);
 var newValue = this.allowedValues[0];
 this.allowedValues.each( function(v) {
 var currentOffset = Math.abs(v - value);
 if(currentOffset <= offset){
 newValue = v;
 offset = currentOffset;
 }
 });
 return newValue;
 }
 if(value > this.range.end) return this.range.end;
 if(value < this.range.start) return this.range.start;
 return value;
 },
 setValue: function(sliderValue, handleIdx){
 if(!this.active) {
 this.activeHandleIdx = handleIdx || 0;
 this.activeHandle = this.handles[this.activeHandleIdx];
 this.updateStyles();
 }
 handleIdx = handleIdx || this.activeHandleIdx || 0;
 if(this.initialized && this.restricted) {
 if((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
 sliderValue = this.values[handleIdx-1];
 if((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
 sliderValue = this.values[handleIdx+1];
 }
 sliderValue = this.getNearestValue(sliderValue);
 this.values[handleIdx] = sliderValue;
 this.value = this.values[0]; // assure backwards compat

 this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
 this.translateToPx(sliderValue);

 this.drawSpans();
 if(!this.dragging || !this.event) this.updateFinished();
 },
 setValueBy: function(delta, handleIdx) {
 this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
 handleIdx || this.activeHandleIdx || 0);
 },
 translateToPx: function(value) {
 return Math.round(
 ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
 (value - this.range.start)) + "px";
 },
 translateToValue: function(offset) {
 return ((offset/(this.trackLength-this.handleLength) *
 (this.range.end-this.range.start)) + this.range.start);
 },
 getRange: function(range) {
 var v = this.values.sortBy(Prototype.K);
 range = range || 0;
 return $R(v[range],v[range+1]);
 },
 minimumOffset: function(){
 return(this.isVertical() ? this.alignY : this.alignX);
 },
 maximumOffset: function(){
 return(this.isVertical() ?
 (this.track.offsetHeight != 0 ? this.track.offsetHeight :
 this.track.style.height.replace(/px$/,"")) - this.alignY :
 (this.track.offsetWidth != 0 ? this.track.offsetWidth :
 this.track.style.width.replace(/px$/,"")) - this.alignY);
 },
 isVertical: function(){
 return (this.axis == 'vertical');
 },
 drawSpans: function() {
 var slider = this;
 if(this.spans)
 $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
 if(this.options.startSpan)
 this.setSpan(this.options.startSpan,
 $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
 if(this.options.endSpan)
 this.setSpan(this.options.endSpan,
 $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
 },
 setSpan: function(span, range) {
 if(this.isVertical()) {
 span.style.top = this.translateToPx(range.start);
 span.style.height = this.translateToPx(range.end - range.start + this.range.start);
 } else {
 span.style.left = this.translateToPx(range.start);
 span.style.width = this.translateToPx(range.end - range.start + this.range.start);
 }
 },
 updateStyles: function() {
 this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
 Element.addClassName(this.activeHandle, 'selected');
 },
 startDrag: function(event) {
 if(Event.isLeftClick(event)) {
 if(!this.disabled){
 this.active = true;

 var handle = Event.element(event);
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 var track = handle;
 if(track==this.track) {
 var offsets = Position.cumulativeOffset(this.track);
 this.event = event;
 this.setValue(this.translateToValue(
 (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
 ));
 var offsets = Position.cumulativeOffset(this.activeHandle);
 this.offsetX = (pointer[0] - offsets[0]);
 this.offsetY = (pointer[1] - offsets[1]);
 } else {
 // find the handle (prevents issues with Safari)
 while((this.handles.indexOf(handle) == -1) && handle.parentNode)
 handle = handle.parentNode;

 if(this.handles.indexOf(handle)!=-1) {
 this.activeHandle = handle;
 this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
 this.updateStyles();

 var offsets = Position.cumulativeOffset(this.activeHandle);
 this.offsetX = (pointer[0] - offsets[0]);
 this.offsetY = (pointer[1] - offsets[1]);
 }
 }
 }
 Event.stop(event);
 }
 },
 update: function(event) {
 if(this.active) {
 if(!this.dragging) this.dragging = true;
 this.draw(event);
 if(Prototype.Browser.WebKit) window.scrollBy(0,0);
 Event.stop(event);
 }
 },
 draw: function(event) {
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 var offsets = Position.cumulativeOffset(this.track);
 pointer[0] -= this.offsetX + offsets[0];
 pointer[1] -= this.offsetY + offsets[1];
 this.event = event;
 this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
 if(this.initialized && this.options.onSlide)
 this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
 },
 endDrag: function(event) {
 if(this.active && this.dragging) {
 this.finishDrag(event, true);
 Event.stop(event);
 }
 this.active = false;
 this.dragging = false;
 },
 finishDrag: function(event, success) {
 this.active = false;
 this.dragging = false;
 this.updateFinished();
 },
 updateFinished: function() {
 if(this.initialized && this.options.onChange)
 this.options.onChange(this.values.length>1 ? this.values : this.value, this);
 this.event = null;
 }
}
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
 */
function popWin(url,win,para) {
 var win = window.open(url,win,para);
 win.focus();
}

function setLocation(url){
 window.location.href = url;
}

function setPLocation(url, setFocus){
 if( setFocus ) {
 window.opener.focus();
 }
 window.opener.location.href = url;
}

function setLanguageCode(code, fromCode){
 //TODO: javascript cookies have different domain and path than php cookies
 var href = window.location.href;
 var after = '', dash;
 if (dash = href.match(/\#(.*)$/)) {
 href = href.replace(/\#(.*)$/, '');
 after = dash[0];
 }

 if (href.match(/[?]/)) {
 var re = /([?&]store=)[a-z0-9_]*/;
 if (href.match(re)) {
 href = href.replace(re, '$1'+code);
 } else {
 href += '&store='+code;
 }

 var re = /([?&]from_store=)[a-z0-9_]*/;
 if (href.match(re)) {
 href = href.replace(re, '');
 }
 } else {
 href += '?store='+code;
 }
 if (typeof(fromCode) != 'undefined') {
 href += '&from_store='+fromCode;
 }
 href += after;

 setLocation(href);
}

/**
 * Add classes to specified elements.
 * Supported classes are: 'odd', 'even', 'first', 'last'
 *
 * @param elements - array of elements to be decorated
 * [@param decorateParams] - array of classes to be set. If omitted, all available will be used
 */
function decorateGeneric(elements, decorateParams)
{
 var allSupportedParams = ['odd', 'even', 'first', 'last'];
 var _decorateParams = {};
 var total = elements.length;

 if (total) {
 // determine params called
 if (typeof(decorateParams) == 'undefined') {
 decorateParams = allSupportedParams;
 }
 if (!decorateParams.length) {
 return;
 }
 for (var k in allSupportedParams) {
 _decorateParams[allSupportedParams[k]] = false;
 }
 for (var k in decorateParams) {
 _decorateParams[decorateParams[k]] = true;
 }

 // decorate elements
 // elements[0].addClassName('first'); // will cause bug in IE (#5587)
 if (_decorateParams.first) {
 Element.addClassName(elements[0], 'first');
 }
 if (_decorateParams.last) {
 Element.addClassName(elements[total-1], 'last');
 }
 for (var i = 0; i < total; i++) {
 if ((i + 1) % 2 == 0) {
 if (_decorateParams.even) {
 Element.addClassName(elements[i], 'even');
 }
 }
 else {
 if (_decorateParams.odd) {
 Element.addClassName(elements[i], 'odd');
 }
 }
 }
 }
}

/**
 * Decorate table rows and cells, tbody etc
 * @see decorateGeneric()
 */
function decorateTable(table, options) {
 var table = $(table);
 if (table) {
 // set default options
 var _options = {
 'tbody' : false,
 'tbody tr' : ['odd', 'even', 'first', 'last'],
 'thead tr' : ['first', 'last'],
 'tfoot tr' : ['first', 'last'],
 'tr td' : ['last']
 };
 // overload options
 if (typeof(options) != 'undefined') {
 for (var k in options) {
 _options[k] = options[k];
 }
 }
 // decorate
 if (_options['tbody']) {
 decorateGeneric(table.select('tbody'), _options['tbody']);
 }
 if (_options['tbody tr']) {
 decorateGeneric(table.select('tbody tr'), _options['tbody tr']);
 }
 if (_options['thead tr']) {
 decorateGeneric(table.select('thead tr'), _options['thead tr']);
 }
 if (_options['tfoot tr']) {
 decorateGeneric(table.select('tfoot tr'), _options['tfoot tr']);
 }
 if (_options['tr td']) {
 var allRows = table.select('tr');
 if (allRows.length) {
 for (var i = 0; i < allRows.length; i++) {
 decorateGeneric(allRows[i].getElementsByTagName('TD'), _options['tr td']);
 }
 }
 }
 }
}

/**
 * Set "odd", "even" and "last" CSS classes for list items
 * @see decorateGeneric()
 */
function decorateList(list, nonRecursive) {
 if ($(list)) {
 if (typeof(nonRecursive) == 'undefined') {
 var items = $(list).select('li')
 }
 else {
 var items = $(list).childElements();
 }
 decorateGeneric(items, ['odd', 'even', 'last']);
 }
}

/**
 * Set "odd", "even" and "last" CSS classes for list items
 * @see decorateGeneric()
 */
function decorateDataList(list) {
 list = $(list);
 if (list) {
 decorateGeneric(list.select('dt'), ['odd', 'even', 'last']);
 decorateGeneric(list.select('dd'), ['odd', 'even', 'last']);
 }
}

/**
 * Formats currency using patern
 * format - JSON (pattern, decimal, decimalsDelimeter, groupsDelimeter)
 * showPlus - true (always show '+'or '-'),
 * false (never show '-' even if number is negative)
 * null (show '-' if number is negative)
 */

function formatCurrency(price, format, showPlus){
 precision = isNaN(format.precision = Math.abs(format.precision)) ? 2 : format.precision;
 requiredPrecision = isNaN(format.requiredPrecision = Math.abs(format.requiredPrecision)) ? 2 : format.requiredPrecision;

 //precision = (precision > requiredPrecision) ? precision : requiredPrecision;
 //for now we don't need this difference so precision is requiredPrecision
 precision = requiredPrecision;

 integerRequired = isNaN(format.integerRequired = Math.abs(format.integerRequired)) ? 1 : format.integerRequired;

 decimalSymbol = format.decimalSymbol == undefined ? "," : format.decimalSymbol;
 groupSymbol = format.groupSymbol == undefined ? "." : format.groupSymbol;
 groupLength = format.groupLength == undefined ? 3 : format.groupLength;

 if (showPlus == undefined || showPlus == true) {
 s = price < 0 ? "-" : ( showPlus ? "+" : "");
 } else if (showPlus == false) {
 s = '';
 }

 i = parseInt(price = Math.abs(+price || 0).toFixed(precision)) + "";
 pad = (i.length < integerRequired) ? (integerRequired - i.length) : 0;
 while (pad) { i = '0' + i; pad--; }

 j = (j = i.length) > groupLength ? j % groupLength : 0;
 re = new RegExp("(\\d{" + groupLength + "})(?=\\d)", "g");

 /**
 * replace(/-/, 0) is only for fixing Safari bug which appears
 * when Math.abs(0).toFixed() executed on "0" number.
 * Result is "0.-0" :(
 */
 r = (j ? i.substr(0, j) + groupSymbol : "") + i.substr(j).replace(re, "$1" + groupSymbol) + (precision ? decimalSymbol + Math.abs(price - i).toFixed(precision).replace(/-/, 0).slice(2) : "")

 if (format.pattern.indexOf('{sign}') == -1) {
 pattern = s + format.pattern;
 } else {
 pattern = format.pattern.replace('{sign}', s);
 }

 return pattern.replace('%s', r).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
};

function expandDetails(el, childClass) {
 if (Element.hasClassName(el,'show-details')) {
 $$(childClass).each(function(item){item.hide()});
 Element.removeClassName(el,'show-details');
 }
 else {
 $$(childClass).each(function(item){item.show()});
 Element.addClassName(el,'show-details');
 }
}

// Version 1.0
var isIE = navigator.appVersion.match(/MSIE/) == "MSIE";

if (!window.Varien)
 var Varien = new Object();

Varien.showLoading = function(){
 Element.show('loading-process');
}
Varien.hideLoading = function(){
 Element.hide('loading-process');
}
Varien.GlobalHandlers = {
 onCreate: function() {
 Varien.showLoading();
 },

 onComplete: function() {
 if(Ajax.activeRequestCount == 0) {
 Varien.hideLoading();
 }
 }
};

Ajax.Responders.register(Varien.GlobalHandlers);

/**
 * Quick Search form client model
 */
Varien.searchForm = Class.create();
Varien.searchForm.prototype = {
 initialize : function(form, field, emptyText){
 this.form = $(form);
 this.field = $(field);
 this.emptyText = emptyText;

 Event.observe(this.form, 'submit', this.submit.bind(this));
 Event.observe(this.field, 'focus', this.focus.bind(this));
 Event.observe(this.field, 'blur', this.blur.bind(this));
 this.blur();
 },

 submit : function(event){
 if (this.field.value == this.emptyText || this.field.value == ''){
 Event.stop(event);
 return false;
 }
 return true;
 },

 focus : function(event){
 if(this.field.value==this.emptyText){
 this.field.value='';
 }

 },

 blur : function(event){
 if(this.field.value==''){
 this.field.value=this.emptyText;
 }
 },

 initAutocomplete : function(url, destinationElement){
 new Ajax.Autocompleter(
 this.field,
 destinationElement,
 url,
 {
 paramName: this.field.name,
 minChars: 2,
 updateElement: this._selectAutocompleteItem.bind(this),
 onShow : function(element, update) { 
 if(!update.style.position || update.style.position=='absolute') {
 update.style.position = 'absolute';
 Position.clone(element, update, {
 setHeight: false, 
 offsetTop: element.offsetHeight
 });
 }
 Effect.Appear(update,{duration:0});
 }

 }
 );
 },

 _selectAutocompleteItem : function(element){
 if(element.title){
 this.field.value = element.title;
 }
 this.form.submit();
 }
}

Varien.Tabs = Class.create();
Varien.Tabs.prototype = {
 initialize: function(selector) {
 var self=this;
 $$(selector+' a').each(this.initTab.bind(this));
 },

 initTab: function(el) {
 el.href = 'javascript:void(0)';
 if ($(el.parentNode).hasClassName('active')) {
 this.showContent(el);
 }
 el.observe('click', this.showContent.bind(this, el));
 },

 showContent: function(a) {
 var li = $(a.parentNode), ul = $(li.parentNode);
 ul.getElementsBySelector('li', 'ol').each(function(el){
 var contents = $(el.id+'_contents');
 if (el==li) {
 el.addClassName('active');
 contents.show();
 } else {
 el.removeClassName('active');
 contents.hide();
 }
 });
 }
}

Varien.DOB = Class.create();
Varien.DOB.prototype = {
 initialize: function(selector, required, format) {
 var el = $$(selector)[0];
 this.day = Element.select($(el), '.dob-day input')[0];
 this.month = Element.select($(el), '.dob-month input')[0];
 this.year = Element.select($(el), '.dob-year input')[0];
 this.dob = Element.select($(el), '.dob-full input')[0];
 this.advice = Element.select($(el), '.validation-advice')[0];
 this.required = required;
 this.format = format;

 this.day.validate = this.validate.bind(this);
 this.month.validate = this.validate.bind(this);
 this.year.validate = this.validate.bind(this);

 this.advice.hide();
 },

 validate: function() {
 var error = false;

 if (this.day.value=='' && this.month.value=='' && this.year.value=='') {
 if (this.required) {
 error = 'This date is a required value.';
 } else {
 this.dob.value = '';
 }
 } else if (this.day.value=='' || this.month.value=='' || this.year.value=='') {
 error = 'Please enter a valid full date.';
 } else {
 var date = new Date();
 if (this.day.value<1 || this.day.value>31) {
 error = 'Please enter a valid day (1-31).';
 } else if (this.month.value<1 || this.month.value>12) {
 error = 'Please enter a valid month (1-12).';
 } else if (this.year.value<1900 || this.year.value>date.getFullYear()) {
 error = 'Please enter a valid year (1900-'+date.getFullYear()+').';
 } else {
 this.dob.value = this.format.replace(/(%m|%b)/i, this.month.value).replace(/(%d|%e)/i, this.day.value).replace(/%y/i, this.year.value);
 var testDOB = this.month.value + '/' + this.day.value + '/'+ this.year.value;
 var test = new Date(testDOB);
 if (isNaN(test)) {
 error = 'Please enter a valid date.';
 }
 }
 }

 if (error !== false) {
 try {
 this.advice.innerHTML = Translator.translate(error);
 }
 catch (e) {
 this.advice.innerHTML = error;
 }
 this.advice.show();
 return false;
 }

 this.advice.hide();
 return true;
 }
}

Validation.addAllThese([
 ['validate-custom', ' ', function(v,elm) {
 return elm.validate();
 }]
]);

function truncateOptions() {
 $$('.truncated').each(function(element){
 Event.observe(element, 'mouseover', function(){
 if (element.down('div.truncated_full_value')) {
 element.down('div.truncated_full_value').addClassName('show')
 }
 });
 Event.observe(element, 'mouseout', function(){
 if (element.down('div.truncated_full_value')) {
 element.down('div.truncated_full_value').removeClassName('show')
 }
 });

 });
}
Event.observe(window, 'load', function(){
 truncateOptions();
});
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
 */
VarienForm = Class.create();
VarienForm.prototype = {
 initialize: function(formId, firstFieldFocus){
 this.form = $(formId);
 if (!this.form) {
 return;
 }
 this.cache = $A();
 this.currLoader = false;
 this.currDataIndex = false;
 this.validator = new Validation(this.form);
 this.elementFocus = this.elementOnFocus.bindAsEventListener(this);
 this.elementBlur = this.elementOnBlur.bindAsEventListener(this);
 this.childLoader = this.onChangeChildLoad.bindAsEventListener(this);
 this.highlightClass = 'highlight';
 this.extraChildParams = '';
 this.firstFieldFocus= firstFieldFocus || false;
 this.bindElements();
 if(this.firstFieldFocus){
 try{
 Form.Element.focus(Form.findFirstElement(this.form))
 }
 catch(e){}
 }
 },

 submit : function(url){
 if(this.validator && this.validator.validate()){
 this.form.submit();
 }
 return false;
 },

 bindElements:function (){
 var elements = Form.getElements(this.form);
 for (var row in elements) {
 if (elements[row].id) {
 Event.observe(elements[row],'focus',this.elementFocus);
 Event.observe(elements[row],'blur',this.elementBlur);
 }
 }
 },

 elementOnFocus: function(event){
 var element = Event.findElement(event, 'fieldset');
 if(element){
 Element.addClassName(element, this.highlightClass);
 }
 },

 elementOnBlur: function(event){
 var element = Event.findElement(event, 'fieldset');
 if(element){
 Element.removeClassName(element, this.highlightClass);
 }
 },

 setElementsRelation: function(parent, child, dataUrl, first){
 if (parent=$(parent)) {
 // TODO: array of relation and caching
 if (!this.cache[parent.id]){
 this.cache[parent.id] = $A();
 this.cache[parent.id]['child'] = child;
 this.cache[parent.id]['dataUrl'] = dataUrl;
 this.cache[parent.id]['data'] = $A();
 this.cache[parent.id]['first'] = first || false;
 }
 Event.observe(parent,'change',this.childLoader);
 }
 },

 onChangeChildLoad: function(event){
 element = Event.element(event);
 this.elementChildLoad(element);
 },

 elementChildLoad: function(element, callback){
 this.callback = callback || false;
 if (element.value) {
 this.currLoader = element.id;
 this.currDataIndex = element.value;
 if (this.cache[element.id]['data'][element.value]) {
 this.setDataToChild(this.cache[element.id]['data'][element.value]);
 }
 else{
 new Ajax.Request(this.cache[this.currLoader]['dataUrl'],{
 method: 'post',
 parameters: {"parent":element.value},
 onComplete: this.reloadChildren.bind(this)
 });
 }
 }
 },

 reloadChildren: function(transport){
 var data = eval('(' + transport.responseText + ')');
 this.cache[this.currLoader]['data'][this.currDataIndex] = data;
 this.setDataToChild(data);
 },

 setDataToChild: function(data){
 if (data.length) {
 var child = $(this.cache[this.currLoader]['child']);
 if (child){
 var html = '<select name="'+child.name+'" id="'+child.id+'" class="'+child.className+'" title="'+child.title+'" '+this.extraChildParams+'>';
 if(this.cache[this.currLoader]['first']){
 html+= '<option value="">'+this.cache[this.currLoader]['first']+'</option>';
 }
 for (var i in data){
 if(data[i].value) {
 html+= '<option value="'+data[i].value+'"';
 if(child.value && (child.value == data[i].value || child.value == data[i].label)){
 html+= ' selected';
 }
 html+='>'+data[i].label+'</option>';
 }
 }
 html+= '</select>';
 Element.insert(child, {before: html});
 Element.remove(child);
 }
 }
 else{
 var child = $(this.cache[this.currLoader]['child']);
 if (child){
 var html = '<input type="text" name="'+child.name+'" id="'+child.id+'" class="'+child.className+'" title="'+child.title+'" '+this.extraChildParams+'>';
 Element.insert(child, {before: html});
 Element.remove(child);
 }
 }

 this.bindElements();
 if (this.callback) {
 this.callback();
 }
 }
}

RegionUpdater = Class.create();
RegionUpdater.prototype = {
 initialize: function (countryEl, regionTextEl, regionSelectEl, regions, disableAction)
 {
 this.countryEl = $(countryEl);
 this.regionTextEl = $(regionTextEl);
 this.regionSelectEl = $(regionSelectEl);
 this.regions = regions;

 this.disableAction = (typeof disableAction=='undefined') ? 'hide' : disableAction;

 if (this.regionSelectEl.options.length<=1) {
 this.update();
 }

 Event.observe(this.countryEl, 'change', this.update.bind(this));
 },

 update: function()
 {
 if (this.regions[this.countryEl.value]) {
 var i, option, region, def;

 if (this.regionTextEl) {
 def = this.regionTextEl.value.toLowerCase();
 this.regionTextEl.value = '';
 }
 if (!def) {
 def = this.regionSelectEl.getAttribute('defaultValue');
 }

 this.regionSelectEl.options.length = 1;
 for (regionId in this.regions[this.countryEl.value]) {
 region = this.regions[this.countryEl.value][regionId];

 option = document.createElement('OPTION');
 option.value = regionId;
 option.text = region.name;

 if (this.regionSelectEl.options.add) {
 this.regionSelectEl.options.add(option);
 } else {
 this.regionSelectEl.appendChild(option);
 }

 if (regionId==def || region.name.toLowerCase()==def || region.code.toLowerCase()==def) {
 this.regionSelectEl.value = regionId;
 }
 }

 if (this.disableAction=='hide') {
 if (this.regionTextEl) {
 this.regionTextEl.style.display = 'none';
 }

 this.regionSelectEl.style.display = '';
 } else if (this.disableAction=='disable') {
 if (this.regionTextEl) {
 this.regionTextEl.disabled = true;
 }
 this.regionSelectEl.disabled = false;
 }
 this.setMarkDisplay(this.regionSelectEl, true);
 } else {
 if (this.disableAction=='hide') {
 if (this.regionTextEl) {
 this.regionTextEl.style.display = '';
 }
 this.regionSelectEl.style.display = 'none';
 Validation.reset(this.regionSelectEl);
 } else if (this.disableAction=='disable') {
 if (this.regionTextEl) {
 this.regionTextEl.disabled = false;
 }
 this.regionSelectEl.disabled = true;
 } else if (this.disableAction=='nullify') {
 this.regionSelectEl.options.length = 1;
 this.regionSelectEl.value = '';
 this.regionSelectEl.selectedIndex = 0;
 this.lastCountryId = '';
 }
 this.setMarkDisplay(this.regionSelectEl, false);
 }
 },

 setMarkDisplay: function(elem, display){
 elem = $(elem);
 var labelElement = elem.up(1).down('label > span.required') || 
 elem.up(2).down('label > span.required') ||
 elem.up(1).down('label.required > em') ||
 elem.up(2).down('label.required > em');
 if(labelElement) {
 display ? labelElement.show() : labelElement.hide();
 }
 }
}
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
 */
function toggleMenu(el, over)
{
 if (over) {
 Element.addClassName(el, 'over');
 }
 else {
 Element.removeClassName(el, 'over');
 }
}

/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category Mage
 * @package Js
 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
 */

var Translate = Class.create();
Translate.prototype = {
 initialize: function(data){
 this.data = $H(data);
 },

 translate : function(){
 var args = arguments;
 var text = arguments[0];

 if(this.data.get(text)){
 return this.data.get(text);
 }
 return text;
 },
 add : function() {
 if (arguments.length > 1) {
 this.data.set(arguments[0], arguments[1]);
 } else if (typeof arguments[0] =='object') {
 $H(arguments[0]).each(function (pair){
 this.data.set(pair.key, pair.value);
 }.bind(this));
 }
 }
}
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
 */
// old school cookie functions grabbed off the web

if (!window.Mage) var Mage = {};

Mage.Cookies = {};
Mage.Cookies.set = function(name, value){
 var argv = arguments;
 var argc = arguments.length;
 var expires = (argc > 2) ? argv[2] : null;
 var path = (argc > 3) ? argv[3] : '/';
 var domain = (argc > 4) ? argv[4] : null;
 var secure = (argc > 5) ? argv[5] : false;
 document.cookie = name + "=" + escape (value) +
 ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
 ((path == null) ? "" : ("; path=" + path)) +
 ((domain == null) ? "" : ("; domain=" + domain)) +
 ((secure == true) ? "; secure" : "");
};

Mage.Cookies.get = function(name){
 var arg = name + "=";
 var alen = arg.length;
 var clen = document.cookie.length;
 var i = 0;
 var j = 0;
 while(i < clen){
 j = i + alen;
 if (document.cookie.substring(i, j) == arg)
 return Mage.Cookies.getCookieVal(j);
 i = document.cookie.indexOf(" ", i) + 1;
 if(i == 0)
 break;
 }
 return null;
};

Mage.Cookies.clear = function(name) {
 if(Mage.Cookies.get(name)){
 document.cookie = name + "=" +
 "; expires=Thu, 01-Jan-70 00:00:01 GMT";
 }
};

Mage.Cookies.getCookieVal = function(offset){
 var endstr = document.cookie.indexOf(";", offset);
 if(endstr == -1){
 endstr = document.cookie.length;
 }
 return unescape(document.cookie.substring(offset, endstr));
};
/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License: http://developer.yahoo.net/yui/license.txt
version: 2.4.1

Note: This file includes yahoo, dom, event, and anim

*/
if(typeof YAHOO=="undefined"||!YAHOO){var YAHOO={};}YAHOO.namespace=function(){var A=arguments,E=null,C,B,D;for(C=0;C<A.length;C=C+1){D=A[C].split(".");E=YAHOO;for(B=(D[0]=="YAHOO")?1:0;B<D.length;B=B+1){E[D[B]]=E[D[B]]||{};E=E[D[B]];}}return E;};YAHOO.log=function(D,A,C){var B=YAHOO.widget.Logger;if(B&&B.log){return B.log(D,A,C);}else{return false;}};YAHOO.register=function(A,E,D){var I=YAHOO.env.modules;if(!I[A]){I[A]={versions:[],builds:[]};}var B=I[A],H=D.version,G=D.build,F=YAHOO.env.listeners;B.name=A;B.version=H;B.build=G;B.versions.push(H);B.builds.push(G);B.mainClass=E;for(var C=0;C<F.length;C=C+1){F[C](B);}if(E){E.VERSION=H;E.BUILD=G;}else{YAHOO.log("mainClass is undefined for module "+A,"warn");}};YAHOO.env=YAHOO.env||{modules:[],listeners:[]};YAHOO.env.getVersion=function(A){return YAHOO.env.modules[A]||null;};YAHOO.env.ua=function(){var C={ie:0,opera:0,gecko:0,webkit:0,mobile:null};var B=navigator.userAgent,A;if((/KHTML/).test(B)){C.webkit=1;}A=B.match(/AppleWebKit\/([^\s]*)/);if(A&&A[1]){C.webkit=parseFloat(A[1]);if(/ Mobile\//.test(B)){C.mobile="Apple";}else{A=B.match(/NokiaN[^\/]*/);if(A){C.mobile=A[0];}}}if(!C.webkit){A=B.match(/Opera[\s\/]([^\s]*)/);if(A&&A[1]){C.opera=parseFloat(A[1]);A=B.match(/Opera Mini[^;]*/);if(A){C.mobile=A[0];}}else{A=B.match(/MSIE\s([^;]*)/);if(A&&A[1]){C.ie=parseFloat(A[1]);}else{A=B.match(/Gecko\/([^\s]*)/);if(A){C.gecko=1;A=B.match(/rv:([^\s\)]*)/);if(A&&A[1]){C.gecko=parseFloat(A[1]);}}}}}return C;}();(function(){YAHOO.namespace("util","widget","example");if("undefined"!==typeof YAHOO_config){var B=YAHOO_config.listener,A=YAHOO.env.listeners,D=true,C;if(B){for(C=0;C<A.length;C=C+1){if(A[C]==B){D=false;break;}}if(D){A.push(B);}}}})();YAHOO.lang=YAHOO.lang||{isArray:function(B){if(B){var A=YAHOO.lang;return A.isNumber(B.length)&&A.isFunction(B.splice);}return false;},isBoolean:function(A){return typeof A==="boolean";},isFunction:function(A){return typeof A==="function";},isNull:function(A){return A===null;},isNumber:function(A){return typeof A==="number"&&isFinite(A);},isObject:function(A){return(A&&(typeof A==="object"||YAHOO.lang.isFunction(A)))||false;},isString:function(A){return typeof A==="string";},isUndefined:function(A){return typeof A==="undefined";},hasOwnProperty:function(A,B){if(Object.prototype.hasOwnProperty){return A.hasOwnProperty(B);}return !YAHOO.lang.isUndefined(A[B])&&A.constructor.prototype[B]!==A[B];},_IEEnumFix:function(C,B){if(YAHOO.env.ua.ie){var E=["toString","valueOf"],A;for(A=0;A<E.length;A=A+1){var F=E[A],D=B[F];if(YAHOO.lang.isFunction(D)&&D!=Object.prototype[F]){C[F]=D;}}}},extend:function(D,E,C){if(!E||!D){throw new Error("YAHOO.lang.extend failed, please check that all dependencies are included.");}var B=function(){};B.prototype=E.prototype;D.prototype=new B();D.prototype.constructor=D;D.superclass=E.prototype;if(E.prototype.constructor==Object.prototype.constructor){E.prototype.constructor=E;}if(C){for(var A in C){D.prototype[A]=C[A];}YAHOO.lang._IEEnumFix(D.prototype,C);}},augmentObject:function(E,D){if(!D||!E){throw new Error("Absorb failed, verify dependencies.");}var A=arguments,C,F,B=A[2];if(B&&B!==true){for(C=2;C<A.length;C=C+1){E[A[C]]=D[A[C]];}}else{for(F in D){if(B||!E[F]){E[F]=D[F];}}YAHOO.lang._IEEnumFix(E,D);}},augmentProto:function(D,C){if(!C||!D){throw new Error("Augment failed, verify dependencies.");}var A=[D.prototype,C.prototype];for(var B=2;B<arguments.length;B=B+1){A.push(arguments[B]);}YAHOO.lang.augmentObject.apply(this,A);},dump:function(A,G){var C=YAHOO.lang,D,F,I=[],J="{...}",B="f(){...}",H=", ",E=" => ";if(!C.isObject(A)){return A+"";}else{if(A instanceof Date||("nodeType" in A&&"tagName" in A)){return A;}else{if(C.isFunction(A)){return B;}}}G=(C.isNumber(G))?G:3;if(C.isArray(A)){I.push("[");for(D=0,F=A.length;D<F;D=D+1){if(C.isObject(A[D])){I.push((G>0)?C.dump(A[D],G-1):J);}else{I.push(A[D]);}I.push(H);}if(I.length>1){I.pop();}I.push("]");}else{I.push("{");for(D in A){if(C.hasOwnProperty(A,D)){I.push(D+E);if(C.isObject(A[D])){I.push((G>0)?C.dump(A[D],G-1):J);}else{I.push(A[D]);}I.push(H);}}if(I.length>1){I.pop();}I.push("}");}return I.join("");},substitute:function(Q,B,J){var G,F,E,M,N,P,D=YAHOO.lang,L=[],C,H="dump",K=" ",A="{",O="}";for(;;){G=Q.lastIndexOf(A);if(G<0){break;}F=Q.indexOf(O,G);if(G+1>=F){break;}C=Q.substring(G+1,F);M=C;P=null;E=M.indexOf(K);if(E>-1){P=M.substring(E+1);M=M.substring(0,E);}N=B[M];if(J){N=J(M,N,P);}if(D.isObject(N)){if(D.isArray(N)){N=D.dump(N,parseInt(P,10));}else{P=P||"";var I=P.indexOf(H);if(I>-1){P=P.substring(4);}if(N.toString===Object.prototype.toString||I>-1){N=D.dump(N,parseInt(P,10));}else{N=N.toString();}}}else{if(!D.isString(N)&&!D.isNumber(N)){N="~-"+L.length+"-~";L[L.length]=C;}}Q=Q.substring(0,G)+N+Q.substring(F+1);}for(G=L.length-1;G>=0;G=G-1){Q=Q.replace(new RegExp("~-"+G+"-~"),"{"+L[G]+"}","g");}return Q;},trim:function(A){try{return A.replace(/^\s+|\s+$/g,"");}catch(B){return A;}},merge:function(){var D={},B=arguments;for(var C=0,A=B.length;C<A;C=C+1){YAHOO.lang.augmentObject(D,B[C],true);}return D;},later:function(H,B,I,D,E){H=H||0;B=B||{};var C=I,G=D,F,A;if(YAHOO.lang.isString(I)){C=B[I];}if(!C){throw new TypeError("method undefined");}if(!YAHOO.lang.isArray(G)){G=[D];}F=function(){C.apply(B,G);};A=(E)?setInterval(F,H):setTimeout(F,H);return{interval:E,cancel:function(){if(this.interval){clearInterval(A);}else{clearTimeout(A);}}};},isValue:function(B){var A=YAHOO.lang;return(A.isObject(B)||A.isString(B)||A.isNumber(B)||A.isBoolean(B));}};YAHOO.util.Lang=YAHOO.lang;YAHOO.lang.augment=YAHOO.lang.augmentProto;YAHOO.augment=YAHOO.lang.augmentProto;YAHOO.extend=YAHOO.lang.extend;YAHOO.register("yahoo",YAHOO,{version:"2.4.1",build:"742"});(function(){var B=YAHOO.util,L,J,H=0,K={},F={},N=window.document;var C=YAHOO.env.ua.opera,M=YAHOO.env.ua.webkit,A=YAHOO.env.ua.gecko,G=YAHOO.env.ua.ie;var E={HYPHEN:/(-[a-z])/i,ROOT_TAG:/^body|html$/i};var O=function(Q){if(!E.HYPHEN.test(Q)){return Q;}if(K[Q]){return K[Q];}var R=Q;while(E.HYPHEN.exec(R)){R=R.replace(RegExp.$1,RegExp.$1.substr(1).toUpperCase());}K[Q]=R;return R;};var P=function(R){var Q=F[R];if(!Q){Q=new RegExp("(?:^|\\s+)"+R+"(?:\\s+|$)");F[R]=Q;}return Q;};if(N.defaultView&&N.defaultView.getComputedStyle){L=function(Q,T){var S=null;if(T=="float"){T="cssFloat";}var R=N.defaultView.getComputedStyle(Q,"");if(R){S=R[O(T)];}return Q.style[T]||S;};}else{if(N.documentElement.currentStyle&&G){L=function(Q,S){switch(O(S)){case"opacity":var U=100;try{U=Q.filters["DXImageTransform.Microsoft.Alpha"].opacity;}catch(T){try{U=Q.filters("alpha").opacity;}catch(T){}}return U/100;case"float":S="styleFloat";default:var R=Q.currentStyle?Q.currentStyle[S]:null;return(Q.style[S]||R);}};}else{L=function(Q,R){return Q.style[R];};}}if(G){J=function(Q,R,S){switch(R){case"opacity":if(YAHOO.lang.isString(Q.style.filter)){Q.style.filter="alpha(opacity="+S*100+")";if(!Q.currentStyle||!Q.currentStyle.hasLayout){Q.style.zoom=1;}}break;case"float":R="styleFloat";default:Q.style[R]=S;}};}else{J=function(Q,R,S){if(R=="float"){R="cssFloat";}Q.style[R]=S;};}var D=function(Q,R){return Q&&Q.nodeType==1&&(!R||R(Q));};YAHOO.util.Dom={get:function(S){if(S&&(S.tagName||S.item)){return S;}if(YAHOO.lang.isString(S)||!S){return N.getElementById(S);}if(S.length!==undefined){var T=[];for(var R=0,Q=S.length;R<Q;++R){T[T.length]=B.Dom.get(S[R]);}return T;}return S;},getStyle:function(Q,S){S=O(S);var R=function(T){return L(T,S);};return B.Dom.batch(Q,R,B.Dom,true);},setStyle:function(Q,S,T){S=O(S);var R=function(U){J(U,S,T);};B.Dom.batch(Q,R,B.Dom,true);},getXY:function(Q){var R=function(S){if((S.parentNode===null||S.offsetParent===null||this.getStyle(S,"display")=="none")&&S!=S.ownerDocument.body){return false;}return I(S);};return B.Dom.batch(Q,R,B.Dom,true);},getX:function(Q){var R=function(S){return B.Dom.getXY(S)[0];};return B.Dom.batch(Q,R,B.Dom,true);},getY:function(Q){var R=function(S){return B.Dom.getXY(S)[1];};return B.Dom.batch(Q,R,B.Dom,true);},setXY:function(Q,T,S){var R=function(W){var V=this.getStyle(W,"position");if(V=="static"){this.setStyle(W,"position","relative");V="relative";}var Y=this.getXY(W);if(Y===false){return false;}var X=[parseInt(this.getStyle(W,"left"),10),parseInt(this.getStyle(W,"top"),10)];if(isNaN(X[0])){X[0]=(V=="relative")?0:W.offsetLeft;}if(isNaN(X[1])){X[1]=(V=="relative")?0:W.offsetTop;}if(T[0]!==null){W.style.left=T[0]-Y[0]+X[0]+"px";}if(T[1]!==null){W.style.top=T[1]-Y[1]+X[1]+"px";}if(!S){var U=this.getXY(W);if((T[0]!==null&&U[0]!=T[0])||(T[1]!==null&&U[1]!=T[1])){this.setXY(W,T,true);}}};B.Dom.batch(Q,R,B.Dom,true);},setX:function(R,Q){B.Dom.setXY(R,[Q,null]);},setY:function(Q,R){B.Dom.setXY(Q,[null,R]);},getRegion:function(Q){var R=function(S){if((S.parentNode===null||S.offsetParent===null||this.getStyle(S,"display")=="none")&&S!=N.body){return false;}var T=B.Region.getRegion(S);return T;};return B.Dom.batch(Q,R,B.Dom,true);},getClientWidth:function(){return B.Dom.getViewportWidth();},getClientHeight:function(){return B.Dom.getViewportHeight();},getElementsByClassName:function(U,Y,V,W){Y=Y||"*";V=(V)?B.Dom.get(V):null||N;if(!V){return[];}var R=[],Q=V.getElementsByTagName(Y),X=P(U);for(var S=0,T=Q.length;S<T;++S){if(X.test(Q[S].className)){R[R.length]=Q[S];if(W){W.call(Q[S],Q[S]);}}}return R;},hasClass:function(S,R){var Q=P(R);var T=function(U){return Q.test(U.className);};return B.Dom.batch(S,T,B.Dom,true);},addClass:function(R,Q){var S=function(T){if(this.hasClass(T,Q)){return false;}T.className=YAHOO.lang.trim([T.className,Q].join(" "));return true;};return B.Dom.batch(R,S,B.Dom,true);},removeClass:function(S,R){var Q=P(R);var T=function(U){if(!this.hasClass(U,R)){return false;}var V=U.className;U.className=V.replace(Q," ");if(this.hasClass(U,R)){this.removeClass(U,R);}U.className=YAHOO.lang.trim(U.className);return true;};return B.Dom.batch(S,T,B.Dom,true);},replaceClass:function(T,R,Q){if(!Q||R===Q){return false;}var S=P(R);var U=function(V){if(!this.hasClass(V,R)){this.addClass(V,Q);return true;}V.className=V.className.replace(S," "+Q+" 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}return Q;},getViewportWidth:function(){var Q=self.innerWidth;var R=N.compatMode;if(R||G){Q=(R=="CSS1Compat")?N.documentElement.clientWidth:N.body.clientWidth;}return Q;},getAncestorBy:function(Q,R){while(Q=Q.parentNode){if(D(Q,R)){return Q;}}return null;},getAncestorByClassName:function(R,Q){R=B.Dom.get(R);if(!R){return null;}var S=function(T){return B.Dom.hasClass(T,Q);};return B.Dom.getAncestorBy(R,S);},getAncestorByTagName:function(R,Q){R=B.Dom.get(R);if(!R){return null;}var S=function(T){return T.tagName&&T.tagName.toUpperCase()==Q.toUpperCase();};return B.Dom.getAncestorBy(R,S);},getPreviousSiblingBy:function(Q,R){while(Q){Q=Q.previousSibling;if(D(Q,R)){return Q;}}return null;},getPreviousSibling:function(Q){Q=B.Dom.get(Q);if(!Q){return null;}return B.Dom.getPreviousSiblingBy(Q);},getNextSiblingBy:function(Q,R){while(Q){Q=Q.nextSibling;if(D(Q,R)){return Q;}}return null;},getNextSibling:function(Q){Q=B.Dom.get(Q);if(!Q){return null;}return B.Dom.getNextSiblingBy(Q);},getFirstChildBy:function(Q,S){var R=(D(Q.firstChild,S))?Q.firstChild:null;return R||B.Dom.getNextSiblingBy(Q.firstChild,S);},getFirstChild:function(Q,R){Q=B.Dom.get(Q);if(!Q){return null;}return B.Dom.getFirstChildBy(Q);},getLastChildBy:function(Q,S){if(!Q){return null;}var R=(D(Q.lastChild,S))?Q.lastChild:null;return R||B.Dom.getPreviousSiblingBy(Q.lastChild,S);},getLastChild:function(Q){Q=B.Dom.get(Q);return B.Dom.getLastChildBy(Q);},getChildrenBy:function(R,T){var S=B.Dom.getFirstChildBy(R,T);var Q=S?[S]:[];B.Dom.getNextSiblingBy(S,function(U){if(!T||T(U)){Q[Q.length]=U;}return false;});return Q;},getChildren:function(Q){Q=B.Dom.get(Q);if(!Q){}return B.Dom.getChildrenBy(Q);},getDocumentScrollLeft:function(Q){Q=Q||N;return Math.max(Q.documentElement.scrollLeft,Q.body.scrollLeft);},getDocumentScrollTop:function(Q){Q=Q||N;return Math.max(Q.documentElement.scrollTop,Q.body.scrollTop);},insertBefore:function(R,Q){R=B.Dom.get(R);Q=B.Dom.get(Q);if(!R||!Q||!Q.parentNode){return null;}return Q.parentNode.insertBefore(R,Q);},insertAfter:function(R,Q){R=B.Dom.get(R);Q=B.Dom.get(Q);if(!R||!Q||!Q.parentNode){return null;}if(Q.nextSibling){return Q.parentNode.insertBefore(R,Q.nextSibling);}else{return Q.parentNode.appendChild(R);}},getClientRegion:function(){var S=B.Dom.getDocumentScrollTop(),R=B.Dom.getDocumentScrollLeft(),T=B.Dom.getViewportWidth()+R,Q=B.Dom.getViewportHeight()+S;return new B.Region(S,T,Q,R);}};var I=function(){if(N.documentElement.getBoundingClientRect){return function(R){var S=R.getBoundingClientRect();var Q=R.ownerDocument;return[S.left+B.Dom.getDocumentScrollLeft(Q),S.top+B.Dom.getDocumentScrollTop(Q)];};}else{return function(S){var T=[S.offsetLeft,S.offsetTop];var R=S.offsetParent;var Q=(M&&B.Dom.getStyle(S,"position")=="absolute"&&S.offsetParent==S.ownerDocument.body);if(R!=S){while(R){T[0]+=R.offsetLeft;T[1]+=R.offsetTop;if(!Q&&M&&B.Dom.getStyle(R,"position")=="absolute"){Q=true;}R=R.offsetParent;}}if(Q){T[0]-=S.ownerDocument.body.offsetLeft;T[1]-=S.ownerDocument.body.offsetTop;}R=S.parentNode;while(R.tagName&&!E.ROOT_TAG.test(R.tagName)){if(B.Dom.getStyle(R,"display").search(/^inline|table-row.*$/i)){T[0]-=R.scrollLeft;T[1]-=R.scrollTop;}R=R.parentNode;}return T;};}}();})();YAHOO.util.Region=function(C,D,A,B){this.top=C;this[1]=C;this.right=D;this.bottom=A;this.left=B;this[0]=B;};YAHOO.util.Region.prototype.contains=function(A){return(A.left>=this.left&&A.right<=this.right&&A.top>=this.top&&A.bottom<=this.bottom);};YAHOO.util.Region.prototype.getArea=function(){return((this.bottom-this.top)*(this.right-this.left));};YAHOO.util.Region.prototype.intersect=function(E){var C=Math.max(this.top,E.top);var D=Math.min(this.right,E.right);var A=Math.min(this.bottom,E.bottom);var B=Math.max(this.left,E.left);if(A>=C&&D>=B){return new YAHOO.util.Region(C,D,A,B);}else{return null;}};YAHOO.util.Region.prototype.union=function(E){var C=Math.min(this.top,E.top);var D=Math.max(this.right,E.right);var A=Math.max(this.bottom,E.bottom);var B=Math.min(this.left,E.left);return new YAHOO.util.Region(C,D,A,B);};YAHOO.util.Region.prototype.toString=function(){return("Region {top: "+this.top+", right: "+this.right+", bottom: "+this.bottom+", left: "+this.left+"}");};YAHOO.util.Region.getRegion=function(D){var F=YAHOO.util.Dom.getXY(D);var C=F[1];var E=F[0]+D.offsetWidth;var A=F[1]+D.offsetHeight;var B=F[0];return new YAHOO.util.Region(C,E,A,B);};YAHOO.util.Point=function(A,B){if(YAHOO.lang.isArray(A)){B=A[1];A=A[0];}this.x=this.right=this.left=this[0]=A;this.y=this.top=this.bottom=this[1]=B;};YAHOO.util.Point.prototype=new 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H=[],F=true,C,I=false;for(C=0;C<arguments.length;++C){H.push(arguments[C]);}if(!this.silent){}for(C=0;C<D;++C){var L=this.subscribers[C];if(!L){I=true;}else{if(!this.silent){}var K=L.getScope(this.scope);if(this.signature==YAHOO.util.CustomEvent.FLAT){var A=null;if(H.length>0){A=H[0];}try{F=L.fn.call(K,A,L.obj);}catch(E){this.lastError=E;}}else{try{F=L.fn.call(K,this.type,H,L.obj);}catch(G){this.lastError=G;}}if(false===F){if(!this.silent){}return false;}}}if(I){var J=[],B=this.subscribers;for(C=0,D=B.length;C<D;C=C+1){J.push(B[C]);}this.subscribers=J;}return true;},unsubscribeAll:function(){for(var B=0,A=this.subscribers.length;B<A;++B){this._delete(A-1-B);}this.subscribers=[];return B;},_delete:function(A){var B=this.subscribers[A];if(B){delete B.fn;delete B.obj;}this.subscribers[A]=null;},toString:function(){return"CustomEvent: '"+this.type+"', scope: 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W=true;for(var R=0,T=M.length;R<T;++R){W=this.on(M[R],K,V,Q,L)&&W;}return W;}else{if(YAHOO.lang.isString(M)){var P=this.getEl(M);if(P){M=P;}else{this.onAvailable(M,function(){YAHOO.util.Event.on(M,K,V,Q,L);});return true;}}}if(!M){return false;}if("unload"==K&&Q!==this){J[J.length]=[M,K,V,Q,L];return true;}var Y=M;if(L){if(L===true){Y=Q;}else{Y=L;}}var N=function(Z){return V.call(Y,YAHOO.util.Event.getEvent(Z,M),Q);};var X=[M,K,V,N,Y,Q,L];var S=I.length;I[S]=X;if(this.useLegacyEvent(M,K)){var O=this.getLegacyIndex(M,K);if(O==-1||M!=G[O][0]){O=G.length;B[M.id+K]=O;G[O]=[M,K,M["on"+K]];E[O]=[];M["on"+K]=function(Z){YAHOO.util.Event.fireLegacyEvent(YAHOO.util.Event.getEvent(Z),O);};}E[O].push(X);}else{try{this._simpleAdd(M,K,N,false);}catch(U){this.lastError=U;this.removeListener(M,K,V);return false;}}return true;},fireLegacyEvent:function(O,M){var Q=true,K,S,R,T,P;S=E[M];for(var L=0,N=S.length;L<N;++L){R=S[L];if(R&&R[this.WFN]){T=R[this.ADJ_SCOPE];P=R[this.WFN].call(T,O);Q=(Q&&P);}}K=G[M];if(K&&K[2]){K[2](O);}return Q;},getLegacyIndex:function(L,M){var K=this.generateId(L)+M;if(typeof B[K]=="undefined"){return -1;}else{return B[K];}},useLegacyEvent:function(L,M){if(this.webkit&&("click"==M||"dblclick"==M)){var K=parseInt(this.webkit,10);if(!isNaN(K)&&K<418){return true;}}return false;},removeListener:function(L,K,T){var O,R,V;if(typeof L=="string"){L=this.getEl(L);}else{if(this._isValidCollection(L)){var U=true;for(O=0,R=L.length;O<R;++O){U=(this.removeListener(L[O],K,T)&&U);}return U;}}if(!T||!T.call){return this.purgeElement(L,false,K);}if("unload"==K){for(O=0,R=J.length;O<R;O++){V=J[O];if(V&&V[0]==L&&V[1]==K&&V[2]==T){J[O]=null;return true;}}return false;}var P=null;var Q=arguments[3];if("undefined"===typeof Q){Q=this._getCacheIndex(L,K,T);}if(Q>=0){P=I[Q];}if(!L||!P){return false;}if(this.useLegacyEvent(L,K)){var N=this.getLegacyIndex(L,K);var M=E[N];if(M){for(O=0,R=M.length;O<R;++O){V=M[O];if(V&&V[this.EL]==L&&V[this.TYPE]==K&&V[this.FN]==T){M[O]=null;break;}}}}else{try{this._simpleRemove(L,K,P[this.WFN],false);}catch(S){this.lastError=S;return false;}}delete I[Q][this.WFN];delete I[Q][this.FN];I[Q]=null;return true;},getTarget:function(M,L){var K=M.target||M.srcElement;return this.resolveTextNode(K);},resolveTextNode:function(K){if(K&&3==K.nodeType){return K.parentNode;}else{return K;}},getPageX:function(L){var K=L.pageX;if(!K&&0!==K){K=L.clientX||0;if(this.isIE){K+=this._getScrollLeft();}}return K;},getPageY:function(K){var L=K.pageY;if(!L&&0!==L){L=K.clientY||0;if(this.isIE){L+=this._getScrollTop();}}return L;},getXY:function(K){return[this.getPageX(K),this.getPageY(K)];
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-1;},generateId:function(K){var L=K.id;if(!L){L="yuievtautoid-"+A;++A;K.id=L;}return L;},_isValidCollection:function(L){try{return(L&&typeof L!=="string"&&L.length&&!L.tagName&&!L.alert&&typeof L[0]!=="undefined");}catch(K){return false;}},elCache:{},getEl:function(K){return(typeof K==="string")?document.getElementById(K):K;},clearCache:function(){},DOMReadyEvent:new YAHOO.util.CustomEvent("DOMReady",this),_load:function(L){if(!H){H=true;var K=YAHOO.util.Event;K._ready();K._tryPreloadAttach();}},_ready:function(L){var K=YAHOO.util.Event;if(!K.DOMReady){K.DOMReady=true;K.DOMReadyEvent.fire();K._simpleRemove(document,"DOMContentLoaded",K._ready);}},_tryPreloadAttach:function(){if(this.locked){return false;}if(this.isIE){if(!this.DOMReady){this.startInterval();return false;}}this.locked=true;var P=!H;if(!P){P=(C>0);}var O=[];var Q=function(S,T){var R=S;if(T.override){if(T.override===true){R=T.obj;}else{R=T.override;}}T.fn.call(R,T.obj);};var L,K,N,M;for(L=0,K=F.length;L<K;++L){N=F[L];if(N&&!N.checkReady){M=this.getEl(N.id);if(M){Q(M,N);F[L]=null;}else{O.push(N);}}}for(L=0,K=F.length;L<K;++L){N=F[L];if(N&&N.checkReady){M=this.getEl(N.id);if(M){if(H||M.nextSibling){Q(M,N);F[L]=null;}}else{O.push(N);}}}C=(O.length===0)?0:C-1;if(P){this.startInterval();}else{clearInterval(this._interval);this._interval=null;}this.locked=false;return true;},purgeElement:function(O,P,R){var M=(YAHOO.lang.isString(O))?this.getEl(O):O;var Q=this.getListeners(M,R),N,K;if(Q){for(N=0,K=Q.length;N<K;++N){var L=Q[N];this.removeListener(M,L.type,L.fn,L.index);}}if(P&&M&&M.childNodes){for(N=0,K=M.childNodes.length;N<K;++N){this.purgeElement(M.childNodes[N],P,R);}}},getListeners:function(M,K){var P=[],L;if(!K){L=[I,J];}else{if(K==="unload"){L=[J];}else{L=[I];}}var R=(YAHOO.lang.isString(M))?this.getEl(M):M;for(var O=0;O<L.length;O=O+1){var T=L[O];if(T&&T.length>0){for(var Q=0,S=T.length;Q<S;++Q){var N=T[Q];if(N&&N[this.EL]===R&&(!K||K===N[this.TYPE])){P.push({type:N[this.TYPE],fn:N[this.FN],obj:N[this.OBJ],adjust:N[this.OVERRIDE],scope:N[this.ADJ_SCOPE],index:Q});}}}}return(P.length)?P:null;},_unload:function(R){var Q=YAHOO.util.Event,O,N,L,K,M;for(O=0,K=J.length;O<K;++O){L=J[O];if(L){var P=window;if(L[Q.ADJ_SCOPE]){if(L[Q.ADJ_SCOPE]===true){P=L[Q.UNLOAD_OBJ];}else{P=L[Q.ADJ_SCOPE];}}L[Q.FN].call(P,Q.getEvent(R,L[Q.EL]),L[Q.UNLOAD_OBJ]);J[O]=null;L=null;P=null;}}J=null;if(YAHOO.env.ua.ie&&I&&I.length>0){N=I.length;while(N){M=N-1;L=I[M];if(L){Q.removeListener(L[Q.EL],L[Q.TYPE],L[Q.FN],M);}N--;}L=null;}G=null;Q._simpleRemove(window,"unload",Q._unload);},_getScrollLeft:function(){return this._getScroll()[1];},_getScrollTop:function(){return this._getScroll()[0];},_getScroll:function(){var K=document.documentElement,L=document.body;if(K&&(K.scrollTop||K.scrollLeft)){return[K.scrollTop,K.scrollLeft];}else{if(L){return[L.scrollTop,L.scrollLeft];}else{return[0,0];}}},regCE:function(){},_simpleAdd:function(){if(window.addEventListener){return function(M,N,L,K){M.addEventListener(N,L,(K));};}else{if(window.attachEvent){return function(M,N,L,K){M.attachEvent("on"+N,L);};}else{return function(){};}}}(),_simpleRemove:function(){if(window.removeEventListener){return function(M,N,L,K){M.removeEventListener(N,L,(K));};}else{if(window.detachEvent){return function(L,M,K){L.detachEvent("on"+M,K);};}else{return function(){};}}}()};}();(function(){var A=YAHOO.util.Event;A.on=A.addListener;if(A.isIE){YAHOO.util.Event.onDOMReady(YAHOO.util.Event._tryPreloadAttach,YAHOO.util.Event,true);A._dri=setInterval(function(){var C=document.createElement("p");try{C.doScroll("left");clearInterval(A._dri);A._dri=null;A._ready();C=null;}catch(B){C=null;}},A.POLL_INTERVAL);}else{if(A.webkit){A._dri=setInterval(function(){var B=document.readyState;if("loaded"==B||"complete"==B){clearInterval(A._dri);A._dri=null;A._ready();}},A.POLL_INTERVAL);}else{A._simpleAdd(document,"DOMContentLoaded",A._ready);}}A._simpleAdd(window,"load",A._load);A._simpleAdd(window,"unload",A._unload);A._tryPreloadAttach();})();}YAHOO.util.EventProvider=function(){};YAHOO.util.EventProvider.prototype={__yui_events:null,__yui_subscribers:null,subscribe:function(A,C,F,E){this.__yui_events=this.__yui_events||{};var D=this.__yui_events[A];if(D){D.subscribe(C,F,E);}else{this.__yui_subscribers=this.__yui_subscribers||{};var B=this.__yui_subscribers;if(!B[A]){B[A]=[];}B[A].push({fn:C,obj:F,override:E});}},unsubscribe:function(C,E,G){this.__yui_events=this.__yui_events||{};var A=this.__yui_events;if(C){var F=A[C];if(F){return F.unsubscribe(E,G);}}else{var B=true;for(var D in A){if(YAHOO.lang.hasOwnProperty(A,D)){B=B&&A[D].unsubscribe(E,G);}}return B;}return false;},unsubscribeAll:function(A){return this.unsubscribe(A);},createEvent:function(G,D){this.__yui_events=this.__yui_events||{};var A=D||{};var I=this.__yui_events;if(I[G]){}else{var H=A.scope||this;var E=(A.silent);var B=new YAHOO.util.CustomEvent(G,H,E,YAHOO.util.CustomEvent.FLAT);I[G]=B;if(A.onSubscribeCallback){B.subscribeEvent.subscribe(A.onSubscribeCallback);}this.__yui_subscribers=this.__yui_subscribers||{};
var F=this.__yui_subscribers[G];if(F){for(var C=0;C<F.length;++C){B.subscribe(F[C].fn,F[C].obj,F[C].override);}}}return I[G];},fireEvent:function(E,D,A,C){this.__yui_events=this.__yui_events||{};var G=this.__yui_events[E];if(!G){return null;}var B=[];for(var F=1;F<arguments.length;++F){B.push(arguments[F]);}return G.fire.apply(G,B);},hasEvent:function(A){if(this.__yui_events){if(this.__yui_events[A]){return true;}}return false;}};YAHOO.util.KeyListener=function(A,F,B,C){if(!A){}else{if(!F){}else{if(!B){}}}if(!C){C=YAHOO.util.KeyListener.KEYDOWN;}var D=new YAHOO.util.CustomEvent("keyPressed");this.enabledEvent=new YAHOO.util.CustomEvent("enabled");this.disabledEvent=new YAHOO.util.CustomEvent("disabled");if(typeof A=="string"){A=document.getElementById(A);}if(typeof B=="function"){D.subscribe(B);}else{D.subscribe(B.fn,B.scope,B.correctScope);}function E(J,I){if(!F.shift){F.shift=false;}if(!F.alt){F.alt=false;}if(!F.ctrl){F.ctrl=false;}if(J.shiftKey==F.shift&&J.altKey==F.alt&&J.ctrlKey==F.ctrl){var G;if(F.keys instanceof Array){for(var H=0;H<F.keys.length;H++){G=F.keys[H];if(G==J.charCode){D.fire(J.charCode,J);break;}else{if(G==J.keyCode){D.fire(J.keyCode,J);break;}}}}else{G=F.keys;if(G==J.charCode){D.fire(J.charCode,J);}else{if(G==J.keyCode){D.fire(J.keyCode,J);}}}}}this.enable=function(){if(!this.enabled){YAHOO.util.Event.addListener(A,C,E);this.enabledEvent.fire(F);}this.enabled=true;};this.disable=function(){if(this.enabled){YAHOO.util.Event.removeListener(A,C,E);this.disabledEvent.fire(F);}this.enabled=false;};this.toString=function(){return"KeyListener ["+F.keys+"] "+A.tagName+(A.id?"["+A.id+"]":"");};};YAHOO.util.KeyListener.KEYDOWN="keydown";YAHOO.util.KeyListener.KEYUP="keyup";YAHOO.util.KeyListener.KEY={ALT:18,BACK_SPACE:8,CAPS_LOCK:20,CONTROL:17,DELETE:46,DOWN:40,END:35,ENTER:13,ESCAPE:27,HOME:36,LEFT:37,META:224,NUM_LOCK:144,PAGE_DOWN:34,PAGE_UP:33,PAUSE:19,PRINTSCREEN:44,RIGHT:39,SCROLL_LOCK:145,SHIFT:16,SPACE:32,TAB:9,UP:38};YAHOO.register("event",YAHOO.util.Event,{version:"2.4.1",build:"742"});YAHOO.register("yahoo-dom-event", YAHOO, {version: "2.4.1", build: "742"});
YAHOO.util.Anim=function(B,A,C,D){if(!B){}this.init(B,A,C,D);};YAHOO.util.Anim.prototype={toString:function(){var A=this.getEl();var B=A.id||A.tagName||A;return("Anim "+B);},patterns:{noNegatives:/width|height|opacity|padding/i,offsetAttribute:/^((width|height)|(top|left))$/,defaultUnit:/width|height|top$|bottom$|left$|right$/i,offsetUnit:/\d+(em|%|en|ex|pt|in|cm|mm|pc)$/i},doMethod:function(A,C,B){return this.method(this.currentFrame,C,B-C,this.totalFrames);},setAttribute:function(A,C,B){if(this.patterns.noNegatives.test(A)){C=(C>0)?C:0;}YAHOO.util.Dom.setStyle(this.getEl(),A,C+B);},getAttribute:function(A){var C=this.getEl();var E=YAHOO.util.Dom.getStyle(C,A);if(E!=="auto"&&!this.patterns.offsetUnit.test(E)){return parseFloat(E);}var B=this.patterns.offsetAttribute.exec(A)||[];var F=!!(B[3]);var D=!!(B[2]);if(D||(YAHOO.util.Dom.getStyle(C,"position")=="absolute"&&F)){E=C["offset"+B[0].charAt(0).toUpperCase()+B[0].substr(1)];}else{E=0;}return E;},getDefaultUnit:function(A){if(this.patterns.defaultUnit.test(A)){return"px";}return"";},setRuntimeAttribute:function(B){var G;var C;var D=this.attributes;this.runtimeAttributes[B]={};var F=function(H){return(typeof H!=="undefined");};if(!F(D[B]["to"])&&!F(D[B]["by"])){return false;}G=(F(D[B]["from"]))?D[B]["from"]:this.getAttribute(B);if(F(D[B]["to"])){C=D[B]["to"];}else{if(F(D[B]["by"])){if(G.constructor==Array){C=[];for(var E=0,A=G.length;E<A;++E){C[E]=G[E]+D[B]["by"][E]*1;}}else{C=G+D[B]["by"]*1;}}}this.runtimeAttributes[B].start=G;this.runtimeAttributes[B].end=C;this.runtimeAttributes[B].unit=(F(D[B].unit))?D[B]["unit"]:this.getDefaultUnit(B);return true;},init:function(C,H,G,A){var B=false;var D=null;var F=0;C=YAHOO.util.Dom.get(C);this.attributes=H||{};this.duration=!YAHOO.lang.isUndefined(G)?G:1;this.method=A||YAHOO.util.Easing.easeNone;this.useSeconds=true;this.currentFrame=0;this.totalFrames=YAHOO.util.AnimMgr.fps;this.setEl=function(K){C=YAHOO.util.Dom.get(K);};this.getEl=function(){return C;};this.isAnimated=function(){return B;};this.getStartTime=function(){return D;};this.runtimeAttributes={};this.animate=function(){if(this.isAnimated()){return false;}this.currentFrame=0;this.totalFrames=(this.useSeconds)?Math.ceil(YAHOO.util.AnimMgr.fps*this.duration):this.duration;if(this.duration===0&&this.useSeconds){this.totalFrames=1;}YAHOO.util.AnimMgr.registerElement(this);return true;};this.stop=function(K){if(!this.isAnimated()){return false;}if(K){this.currentFrame=this.totalFrames;this._onTween.fire();}YAHOO.util.AnimMgr.stop(this);};var J=function(){this.onStart.fire();this.runtimeAttributes={};for(var K in this.attributes){this.setRuntimeAttribute(K);}B=true;F=0;D=new Date();};var I=function(){var M={duration:new Date()-this.getStartTime(),currentFrame:this.currentFrame};M.toString=function(){return("duration: "+M.duration+", currentFrame: "+M.currentFrame);};this.onTween.fire(M);var L=this.runtimeAttributes;for(var K in L){this.setAttribute(K,this.doMethod(K,L[K].start,L[K].end),L[K].unit);}F+=1;};var E=function(){var K=(new Date()-D)/1000;var L={duration:K,frames:F,fps:F/K};L.toString=function(){return("duration: "+L.duration+", frames: "+L.frames+", fps: "+L.fps);};B=false;F=0;this.onComplete.fire(L);};this._onStart=new YAHOO.util.CustomEvent("_start",this,true);this.onStart=new YAHOO.util.CustomEvent("start",this);this.onTween=new YAHOO.util.CustomEvent("tween",this);this._onTween=new YAHOO.util.CustomEvent("_tween",this,true);this.onComplete=new YAHOO.util.CustomEvent("complete",this);this._onComplete=new YAHOO.util.CustomEvent("_complete",this,true);this._onStart.subscribe(J);this._onTween.subscribe(I);this._onComplete.subscribe(E);}};YAHOO.util.AnimMgr=new function(){var C=null;var B=[];var A=0;this.fps=1000;this.delay=1;this.registerElement=function(F){B[B.length]=F;A+=1;F._onStart.fire();this.start();};this.unRegister=function(G,F){F=F||E(G);if(!G.isAnimated()||F==-1){return false;}G._onComplete.fire();B.splice(F,1);A-=1;if(A<=0){this.stop();}return true;};this.start=function(){if(C===null){C=setInterval(this.run,this.delay);}};this.stop=function(H){if(!H){clearInterval(C);for(var G=0,F=B.length;G<F;++G){this.unRegister(B[0],0);}B=[];C=null;A=0;}else{this.unRegister(H);}};this.run=function(){for(var H=0,F=B.length;H<F;++H){var G=B[H];if(!G||!G.isAnimated()){continue;}if(G.currentFrame<G.totalFrames||G.totalFrames===null){G.currentFrame+=1;if(G.useSeconds){D(G);}G._onTween.fire();}else{YAHOO.util.AnimMgr.stop(G,H);}}};var E=function(H){for(var G=0,F=B.length;G<F;++G){if(B[G]==H){return G;}}return -1;};var D=function(G){var J=G.totalFrames;var I=G.currentFrame;var H=(G.currentFrame*G.duration*1000/G.totalFrames);var F=(new Date()-G.getStartTime());var K=0;if(F<G.duration*1000){K=Math.round((F/H-1)*G.currentFrame);}else{K=J-(I+1);}if(K>0&&isFinite(K)){if(G.currentFrame+K>=J){K=J-(I+1);}G.currentFrame+=K;}};};YAHOO.util.Bezier=new function(){this.getPosition=function(E,D){var F=E.length;var C=[];for(var B=0;B<F;++B){C[B]=[E[B][0],E[B][1]];}for(var A=1;A<F;++A){for(B=0;B<F-A;++B){C[B][0]=(1-D)*C[B][0]+D*C[parseInt(B+1,10)][0];C[B][1]=(1-D)*C[B][1]+D*C[parseInt(B+1,10)][1];}}return[C[0][0],C[0][1]];};};(function(){YAHOO.util.ColorAnim=function(E,D,F,G){YAHOO.util.ColorAnim.superclass.constructor.call(this,E,D,F,G);};YAHOO.extend(YAHOO.util.ColorAnim,YAHOO.util.Anim);var B=YAHOO.util;var C=B.ColorAnim.superclass;var A=B.ColorAnim.prototype;A.toString=function(){var D=this.getEl();var E=D.id||D.tagName;return("ColorAnim "+E);};A.patterns.color=/color$/i;A.patterns.rgb=/^rgb\(([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\)$/i;A.patterns.hex=/^#?([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})$/i;A.patterns.hex3=/^#?([0-9A-F]{1})([0-9A-F]{1})([0-9A-F]{1})$/i;A.patterns.transparent=/^transparent|rgba\(0, 0, 0, 0\)$/;A.parseColor=function(D){if(D.length==3){return D;}var E=this.patterns.hex.exec(D);if(E&&E.length==4){return[parseInt(E[1],16),parseInt(E[2],16),parseInt(E[3],16)];}E=this.patterns.rgb.exec(D);if(E&&E.length==4){return[parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10)];
}E=this.patterns.hex3.exec(D);if(E&&E.length==4){return[parseInt(E[1]+E[1],16),parseInt(E[2]+E[2],16),parseInt(E[3]+E[3],16)];}return null;};A.getAttribute=function(D){var F=this.getEl();if(this.patterns.color.test(D)){var G=YAHOO.util.Dom.getStyle(F,D);if(this.patterns.transparent.test(G)){var E=F.parentNode;G=B.Dom.getStyle(E,D);while(E&&this.patterns.transparent.test(G)){E=E.parentNode;G=B.Dom.getStyle(E,D);if(E.tagName.toUpperCase()=="HTML"){G="#fff";}}}}else{G=C.getAttribute.call(this,D);}return G;};A.doMethod=function(E,I,F){var H;if(this.patterns.color.test(E)){H=[];for(var G=0,D=I.length;G<D;++G){H[G]=C.doMethod.call(this,E,I[G],F[G]);}H="rgb("+Math.floor(H[0])+","+Math.floor(H[1])+","+Math.floor(H[2])+")";}else{H=C.doMethod.call(this,E,I,F);}return H;};A.setRuntimeAttribute=function(E){C.setRuntimeAttribute.call(this,E);if(this.patterns.color.test(E)){var G=this.attributes;var I=this.parseColor(this.runtimeAttributes[E].start);var F=this.parseColor(this.runtimeAttributes[E].end);if(typeof G[E]["to"]==="undefined"&&typeof G[E]["by"]!=="undefined"){F=this.parseColor(G[E].by);for(var H=0,D=I.length;H<D;++H){F[H]=I[H]+F[H];}}this.runtimeAttributes[E].start=I;this.runtimeAttributes[E].end=F;}};})();YAHOO.util.Easing={easeNone:function(B,A,D,C){return D*B/C+A;},easeIn:function(B,A,D,C){return D*(B/=C)*B+A;},easeOut:function(B,A,D,C){return -D*(B/=C)*(B-2)+A;},easeBoth:function(B,A,D,C){if((B/=C/2)<1){return D/2*B*B+A;}return -D/2*((--B)*(B-2)-1)+A;},easeInStrong:function(B,A,D,C){return D*(B/=C)*B*B*B+A;},easeOutStrong:function(B,A,D,C){return -D*((B=B/C-1)*B*B*B-1)+A;},easeBothStrong:function(B,A,D,C){if((B/=C/2)<1){return D/2*B*B*B*B+A;}return -D/2*((B-=2)*B*B*B-2)+A;},elasticIn:function(C,A,G,F,B,E){if(C==0){return A;}if((C/=F)==1){return A+G;}if(!E){E=F*0.3;}if(!B||B<Math.abs(G)){B=G;var D=E/4;}else{var D=E/(2*Math.PI)*Math.asin(G/B);}return -(B*Math.pow(2,10*(C-=1))*Math.sin((C*F-D)*(2*Math.PI)/E))+A;},elasticOut:function(C,A,G,F,B,E){if(C==0){return A;}if((C/=F)==1){return A+G;}if(!E){E=F*0.3;}if(!B||B<Math.abs(G)){B=G;var D=E/4;}else{var D=E/(2*Math.PI)*Math.asin(G/B);}return B*Math.pow(2,-10*C)*Math.sin((C*F-D)*(2*Math.PI)/E)+G+A;},elasticBoth:function(C,A,G,F,B,E){if(C==0){return A;}if((C/=F/2)==2){return A+G;}if(!E){E=F*(0.3*1.5);}if(!B||B<Math.abs(G)){B=G;var D=E/4;}else{var D=E/(2*Math.PI)*Math.asin(G/B);}if(C<1){return -0.5*(B*Math.pow(2,10*(C-=1))*Math.sin((C*F-D)*(2*Math.PI)/E))+A;}return B*Math.pow(2,-10*(C-=1))*Math.sin((C*F-D)*(2*Math.PI)/E)*0.5+G+A;},backIn:function(B,A,E,D,C){if(typeof C=="undefined"){C=1.70158;}return E*(B/=D)*B*((C+1)*B-C)+A;},backOut:function(B,A,E,D,C){if(typeof C=="undefined"){C=1.70158;}return E*((B=B/D-1)*B*((C+1)*B+C)+1)+A;},backBoth:function(B,A,E,D,C){if(typeof C=="undefined"){C=1.70158;}if((B/=D/2)<1){return E/2*(B*B*(((C*=(1.525))+1)*B-C))+A;}return E/2*((B-=2)*B*(((C*=(1.525))+1)*B+C)+2)+A;},bounceIn:function(B,A,D,C){return D-YAHOO.util.Easing.bounceOut(C-B,0,D,C)+A;},bounceOut:function(B,A,D,C){if((B/=C)<(1/2.75)){return D*(7.5625*B*B)+A;}else{if(B<(2/2.75)){return D*(7.5625*(B-=(1.5/2.75))*B+0.75)+A;}else{if(B<(2.5/2.75)){return D*(7.5625*(B-=(2.25/2.75))*B+0.9375)+A;}}}return D*(7.5625*(B-=(2.625/2.75))*B+0.984375)+A;},bounceBoth:function(B,A,D,C){if(B<C/2){return YAHOO.util.Easing.bounceIn(B*2,0,D,C)*0.5+A;}return YAHOO.util.Easing.bounceOut(B*2-C,0,D,C)*0.5+D*0.5+A;}};(function(){YAHOO.util.Motion=function(G,F,H,I){if(G){YAHOO.util.Motion.superclass.constructor.call(this,G,F,H,I);}};YAHOO.extend(YAHOO.util.Motion,YAHOO.util.ColorAnim);var D=YAHOO.util;var E=D.Motion.superclass;var B=D.Motion.prototype;B.toString=function(){var F=this.getEl();var G=F.id||F.tagName;return("Motion "+G);};B.patterns.points=/^points$/i;B.setAttribute=function(F,H,G){if(this.patterns.points.test(F)){G=G||"px";E.setAttribute.call(this,"left",H[0],G);E.setAttribute.call(this,"top",H[1],G);}else{E.setAttribute.call(this,F,H,G);}};B.getAttribute=function(F){if(this.patterns.points.test(F)){var G=[E.getAttribute.call(this,"left"),E.getAttribute.call(this,"top")];}else{G=E.getAttribute.call(this,F);}return G;};B.doMethod=function(F,J,G){var I=null;if(this.patterns.points.test(F)){var H=this.method(this.currentFrame,0,100,this.totalFrames)/100;I=D.Bezier.getPosition(this.runtimeAttributes[F],H);}else{I=E.doMethod.call(this,F,J,G);}return I;};B.setRuntimeAttribute=function(O){if(this.patterns.points.test(O)){var G=this.getEl();var I=this.attributes;var F;var K=I["points"]["control"]||[];var H;var L,N;if(K.length>0&&!(K[0] instanceof Array)){K=[K];}else{var J=[];for(L=0,N=K.length;L<N;++L){J[L]=K[L];}K=J;}if(D.Dom.getStyle(G,"position")=="static"){D.Dom.setStyle(G,"position","relative");}if(C(I["points"]["from"])){D.Dom.setXY(G,I["points"]["from"]);}else{D.Dom.setXY(G,D.Dom.getXY(G));}F=this.getAttribute("points");if(C(I["points"]["to"])){H=A.call(this,I["points"]["to"],F);var M=D.Dom.getXY(this.getEl());for(L=0,N=K.length;L<N;++L){K[L]=A.call(this,K[L],F);}}else{if(C(I["points"]["by"])){H=[F[0]+I["points"]["by"][0],F[1]+I["points"]["by"][1]];for(L=0,N=K.length;L<N;++L){K[L]=[F[0]+K[L][0],F[1]+K[L][1]];}}}this.runtimeAttributes[O]=[F];if(K.length>0){this.runtimeAttributes[O]=this.runtimeAttributes[O].concat(K);}this.runtimeAttributes[O][this.runtimeAttributes[O].length]=H;}else{E.setRuntimeAttribute.call(this,O);}};var A=function(F,H){var G=D.Dom.getXY(this.getEl());F=[F[0]-G[0]+H[0],F[1]-G[1]+H[1]];return F;};var C=function(F){return(typeof F!=="undefined");};})();(function(){YAHOO.util.Scroll=function(E,D,F,G){if(E){YAHOO.util.Scroll.superclass.constructor.call(this,E,D,F,G);}};YAHOO.extend(YAHOO.util.Scroll,YAHOO.util.ColorAnim);var B=YAHOO.util;var C=B.Scroll.superclass;var A=B.Scroll.prototype;A.toString=function(){var D=this.getEl();var E=D.id||D.tagName;return("Scroll "+E);};A.doMethod=function(D,G,E){var F=null;if(D=="scroll"){F=[this.method(this.currentFrame,G[0],E[0]-G[0],this.totalFrames),this.method(this.currentFrame,G[1],E[1]-G[1],this.totalFrames)];
}else{F=C.doMethod.call(this,D,G,E);}return F;};A.getAttribute=function(D){var F=null;var E=this.getEl();if(D=="scroll"){F=[E.scrollLeft,E.scrollTop];}else{F=C.getAttribute.call(this,D);}return F;};A.setAttribute=function(D,G,F){var E=this.getEl();if(D=="scroll"){E.scrollLeft=G[0];E.scrollTop=G[1];}else{C.setAttribute.call(this,D,G,F);}};})();YAHOO.register("animation",YAHOO.util.Anim,{version:"2.4.1",build:"742"});

/**
 * An adapter for the Shadowbox media viewer and the Prototype + Scriptaculous
 * JavaScript framework.
 *
 * This file is part of Shadowbox.
 *
 * Shadowbox is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * Shadowbox is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Shadowbox. If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Michael J. I. Jackson <mjijackson@gmail.com>
 * @copyright 2007 Michael J. I. Jackson
 * @license http://www.gnu.org/licenses/lgpl-3.0.txt GNU LGPL 3.0
 * @version SVN: $Id: shadowbox-prototype.js 55 2008-01-29 09:42:41Z mjijackson $
 */

if(typeof Prototype == 'undefined'){
 throw 'Unable to load Shadowbox, Prototype framework not found.';
}
if(typeof Effect == 'undefined'){
 throw 'Unable to load Shadowbox, Scriptaculous effects framework not found.';
}

// create the Shadowbox object first
var Shadowbox = {};

Shadowbox.lib = {

 /**
 * Gets the value of the style on the given element.
 *
 * @param {HTMLElement} el The DOM element
 * @param {String} style The name of the style (e.g. margin-top)
 * @return {mixed} The value of the given style
 * @public
 */
 getStyle: function(el, style){
 return Element.getStyle(el, style);
 },

 /**
 * Sets the style on the given element to the given value. May be an
 * object to specify multiple values.
 *
 * @param {HTMLElement} el The DOM element
 * @param {String/Object} style The name of the style to set if a
 * string, or an object of name =>
 * value pairs
 * @param {String} value The value to set the given style to
 * @return void
 * @public
 */
 setStyle: function(el, style, value){
 if(typeof style != 'object'){
 var temp = {};
 temp[style] = value;
 style = temp;
 }
 Element.setStyle(el, style);
 },

 /**
 * Gets a reference to the given element.
 *
 * @param {String/HTMLElement} el The element to fetch
 * @return {HTMLElement} A reference to the element
 * @public
 */
 get: function(el){
 return $(el);
 },

 /**
 * Removes an element from the DOM.
 *
 * @param {HTMLElement} el The element to remove
 * @return void
 * @public
 */
 remove: function(el){
 Element.remove(el);
 },

 /**
 * Gets the target of the given event. The event object passed will be
 * the same object that is passed to listeners registered with
 * addEvent().
 *
 * @param {mixed} e The event object
 * @return {HTMLElement} The event's target element
 * @public
 */
 getTarget: function(e){
 return Event.element(e);
 },

 /**
 * Prevents the event's default behavior. The event object passed will
 * be the same object that is passed to listeners registered with
 * addEvent().
 *
 * @param {mixed} e The event object
 * @return void
 * @public
 */
 preventDefault: function(e){
 Event.stop(e);
 },

 /**
 * Adds an event listener to the given element. It is expected that this
 * function will be passed the event as its first argument.
 *
 * @param {HTMLElement} el The DOM element to listen to
 * @param {String} name The name of the event to register
 * (i.e. 'click', 'scroll', etc.)
 * @param {Function} handler The event handler function
 * @return void
 * @public
 */
 addEvent: function(el, name, handler){
 Event.observe(el, name, handler);
 },

 /**
 * Removes an event listener from the given element.
 *
 * @param {HTMLElement} el The DOM element to stop listening to
 * @param {String} name The name of the event to stop
 * listening for (i.e. 'click')
 * @param {Function} handler The event handler function
 * @return void
 * @public
 */
 removeEvent: function(el, name, handler){
 Event.stopObserving(el, name, handler);
 },

 /**
 * Animates numerous styles of the given element. The second parameter
 * of this function will be an object of the type that is expected by
 * YAHOO.util.Anim. See http://developer.yahoo.com/yui/docs/YAHOO.util.Anim.html
 * for more information.
 *
 * @param {HTMLElement} el The DOM element to animate
 * @param {Object} obj The animation attributes/parameters
 * @param {Number} duration The duration of the animation
 * (in seconds)
 * @param {Function} callback A callback function to call when
 * the animation completes
 * @return void
 * @public
 */
 animate: function(el, obj, duration, callback){
 var o = {};
 for(var p in obj){
 for(var p in obj){
 o[p] = String(obj[p].to);
 if(p != 'opacity') o[p] += 'px';
 }
 }
 return new Effect.Morph(el, {
 afterFinish: callback,
 duration: duration,
 style: o
 });
 }

};

/**
 * A media-viewer script for web pages that allows content to be viewed without
 * navigating away from the original linking page.
 *
 * This file is part of Shadowbox.
 *
 * Shadowbox is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * Shadowbox is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Shadowbox. If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Michael J. I. Jackson <mjijackson@gmail.com>
 * @copyright 2007 Michael J. I. Jackson
 * @license http://www.gnu.org/licenses/lgpl-3.0.txt GNU LGPL 3.0
 * @version SVN: $Id: shadowbox.js 75 2008-02-21 16:51:29Z mjijackson $
 */

if(typeof Shadowbox == 'undefined'){
 throw 'Unable to load Shadowbox, no base library adapter found.';
}

/**
 * The Shadowbox class. Used to display different media on a web page using a
 * Lightbox-like effect.
 *
 * Useful resources:
 * - http://www.alistapart.com/articles/byebyeembed
 * - http://www.w3.org/TR/html401/struct/objects.html
 * - http://www.dyn-web.com/dhtml/iframes/
 * - http://support.microsoft.com/kb/316992
 * - http://www.apple.com/quicktime/player/specs.html
 * - http://www.howtocreate.co.uk/wrongWithIE/?chapter=navigator.plugins
 *
 * @class Shadowbox
 * @author Michael J. I. Jackson <mjijackson@gmail.com>
 * @singleton
 */
(function(){

 /**
 * The current version of Shadowbox.
 *
 * @property {String} version
 * @private
 */
 var version = '1.0';

 /**
 * Contains the default options for Shadowbox. This object is almost
 * entirely customizable.
 *
 * @property {Object} options
 * @private
 */
 var options = {

 /**
 * A base URL that will be prepended to the loadingImage, flvPlayer, and
 * overlayBgImage options to save on typing.
 *
 * @var {String} assetURL
 */
 assetURL: '',

 /**
 * The path to the image to display while loading.
 *
 * @var {String} loadingImage
 
 loadingImage: 'images/loading.gif',
 
 */
 
 loadingImage: SKIN_URL + 'images/sb/loading.gif', 

 /**
 * Enable animations.
 *
 * @var {Boolean} animate
 */
 animate: true,

 /**
 * Specifies the sequence of the height and width animations. May be
 * 'wh' (width then height), 'hw' (height then width), or 'sync' (both
 * at the same time). Of course this will only work if animate is true.
 *
 * @var {String} animSequence
 */
 animSequence: 'wh',

 /**
 * The path to flvplayer.swf.
 *
 * @var {String} flvPlayer
 */
 flvPlayer: 'flvplayer.swf',

 /**
 * The background color and opacity of the overlay. Note: When viewing
 * movie files on FF Mac, the default background image will be used
 * because that browser has problems displaying movies above layers
 * that aren't 100% opaque.
 *
 * @var {String} overlayColor
 */
 overlayColor: '#000',

 /**
 * The background opacity to use for the overlay.
 *
 * @var {Number} overlayOpacity
 */
 overlayOpacity: 0.85,

 /**
 * A background image to use for browsers such as FF Mac that don't
 * support displaying movie content over backgrounds that aren't 100%
 * opaque.
 *
 * @var {String} overlayBgImage
 */
 overlayBgImage: SKIN_URL + 'images/sb/overlay-85.png',

 /**
 * Listen to the overlay for clicks. If the user clicks the overlay,
 * it will trigger Shadowbox.close().
 *
 * @var {Boolean} listenOverlay
 */
 listenOverlay: true,

 /**
 * Automatically play movies.
 *
 * @var {Boolean} autoplayMovies
 */
 autoplayMovies: true,

 /**
 * Enable movie controllers on movie players.
 *
 * @var {Boolean} showMovieControls
 */
 showMovieControls: true,

 /**
 * The duration of the resizing animations (in seconds).
 *
 * @var {Number} resizeDuration
 */
 resizeDuration: 0.35,

 /**
 * The duration of the overlay fade animation (in seconds).
 *
 * @var {Number} fadeDuration
 */
 fadeDuration: 0.35,

 /**
 * Show the navigation controls.
 *
 * @var {Boolean} displayNav
 */
 displayNav: true,

 /**
 * Enable continuous galleries. When this is true, users will be able
 * to skip to the first gallery image from the last using next and vice
 * versa.
 *
 * @var {Boolean} continuous
 */
 continuous: false,

 /**
 * Display the gallery counter.
 *
 * @var {Boolean} displayCounter
 */
 displayCounter: true,

 /**
 * This option may be either 'default' or 'skip'. The default counter is
 * a simple '1 of 5' message. The skip counter displays a link for each
 * piece in the gallery that enables a user to skip directly to any
 * piece.
 *
 * @var {String} counterType
 */
 counterType: 'default',

 /**
 * The amount of padding to maintain around the viewport edge (in
 * pixels). This only applies when the image is very large and takes up
 * the entire viewport.
 *
 * @var {Number} viewportPadding
 */
 viewportPadding: 20,

 /**
 * How to handle images that are too large for the viewport. 'resize'
 * will resize the image while preserving aspect ratio and display it at
 * the smaller resolution. 'drag' will display the image at its native
 * resolution but it will be draggable within the Shadowbox. 'none' will
 * display the image at its native resolution but it may be cropped.
 *
 * @var {String} handleLgImages
 */
 handleLgImages: 'resize',

 /**
 * The initial height of Shadowbox (in pixels).
 *
 * @var {Number} initialHeight
 */
 initialHeight: 160,

 /**
 * The initial width of Shadowbox (in pixels).
 *
 * @var {Number} initialWidth
 */
 initialWidth: 320,

 /**
 * Enable keyboard control. Note: If you disable the keys, you may want
 * to change the visual styles for the navigation elements that suggest
 * keyboard shortcuts.
 *
 * @var {Boolean} enableKeys
 */
 enableKeys: true,

 /**
 * The keys used to control Shadowbox. Note: In order to use these,
 * enableKeys must be true. Key values or key codes may be used.
 *
 * @var {Array}
 */
 keysClose: ['c', 'q', 27], // c, q, or esc
 keysNext: ['n', 39], // n or right arrow
 keysPrev: ['p', 37], // p or left arrow

 /**
 * A hook function to be fired when Shadowbox opens. The single argument
 * will be the current gallery element.
 *
 * @var {Function}
 */
 onOpen: null,

 /**
 * A hook function to be fired when Shadowbox finishes loading its
 * content. The single argument will be the current gallery element on
 * display.
 *
 * @var {Function}
 */
 onFinish: null,

 /**
 * A hook function to be fired when Shadowbox changes from one gallery
 * element to the next. The single argument will be the current gallery
 * element that is about to be displayed.
 *
 * @var {Function}
 */
 onChange: null,

 /**
 * A hook function that will be fired when Shadowbox closes. The single
 * argument will be the gallery element most recently displayed.
 *
 * @var {Function}
 */
 onClose: null,

 /**
 * The mode to use when handling unsupported media. May be either
 * 'remove' or 'link'. If it is 'remove', the unsupported gallery item
 * will merely be removed from the gallery. If it is the only item in
 * the gallery, the link will simply be followed. If it is 'link', a
 * link will be provided to the appropriate plugin page in place of the
 * gallery element.
 *
 * @var {String} handleUnsupported
 */
 handleUnsupported: 'link',

 /**
 * Skips calling Shadowbox.setup() in init(). This means that it must
 * be called later manually.
 *
 * @var {Boolean} skipSetup
 */
 skipSetup: false,

 /**
 * Text messages to use for Shadowbox. These are provided so they may be
 * translated into different languages.
 *
 * @var {Object} text
 */
 text: {

 cancel: 'Cancel',

 loading: 'loading',

 close: '<span class="shortcut">C</span>lose',

 next: '<span class="shortcut">N</span>ext',

 prev: '<span class="shortcut">P</span>revious',

 errors: {
 single: 'You must install the <a href="{0}">{1}</a> browser plugin to view this content.',
 shared: 'You must install both the <a href="{0}">{1}</a> and <a href="{2}">{3}</a> browser plugins to view this content.',
 either: 'You must install either the <a href="{0}">{1}</a> or the <a href="{2}">{3}</a> browser plugin to view this content.'
 }

 },

 /**
 * An object containing names of plugins and links to their respective
 * download pages.
 *
 * @var {Object} errors
 */
 errors: {

 fla: {
 name: 'Flash',
 url: 'http://www.adobe.com/products/flashplayer/'
 },

 qt: {
 name: 'QuickTime',
 url: 'http://www.apple.com/quicktime/download/'
 },

 wmp: {
 name: 'Windows Media Player',
 url: 'http://www.microsoft.com/windows/windowsmedia/'
 },

 f4m: {
 name: 'Flip4Mac',
 url: 'http://www.flip4mac.com/wmv_download.htm'
 }

 },

 /**
 * The HTML markup to use for Shadowbox. Note: The script depends on
 * most of these elements being present, so don't modify this variable
 * unless you know what you're doing.
 *
 * @var {Object} skin
 */
 skin: {

 main: '<div id="shadowbox_overlay"></div>' +
 '<div id="shadowbox_container">' +
 '<div id="shadowbox">' +
 '<div id="shadowbox_title">' +
 '<div id="shadowbox_title_inner"></div>' +
 '</div>' +
 '<div id="shadowbox_body">' +
 '<div id="shadowbox_body_inner"></div>' +
 '<div id="shadowbox_loading"></div>' +
 '</div>' +
 '<div id="shadowbox_toolbar">' +
 '<div id="shadowbox_toolbar_inner"></div>' +
 '</div>' +
 '</div>' +
 '</div>',

 loading: '<img src="{0}" alt="{1}" />' +
 '<span><a href="javascript:Shadowbox.close();">{2}</a></span>',

 counter: '<div id="shadowbox_counter">{0}</div>',

 close: '<div id="shadowbox_nav_close">' +
 '<a href="javascript:Shadowbox.close();">{0}</a>' +
 '</div>',

 next: '<div id="shadowbox_nav_next">' +
 '<a href="javascript:Shadowbox.next();">{0}</a>' +
 '</div>',

 prev: '<div id="shadowbox_nav_previous">' +
 '<a href="javascript:Shadowbox.previous();">{0}</a>' +
 '</div>'

 },

 /**
 * An object containing arrays of all supported file extensions. Each
 * property of this object contains an array. If this object is to be
 * modified, it must be done before calling init().
 *
 * - img: Supported image file extensions
 * - qt: Movie file extensions supported by QuickTime
 * - wmp: Movie file extensions supported by Windows Media Player
 * - qtwmp: Movie file extensions supported by both QuickTime and Windows Media Player
 * - iframe: File extensions that will be display in an iframe
 *
 * @var {Object} ext
 */
 ext: {
 img: ['png', 'jpg', 'jpeg', 'gif', 'bmp'],
 qt: ['dv', 'mov', 'moov', 'movie', 'mp4'],
 wmp: ['asf', 'wm', 'wmv'],
 qtwmp: ['avi', 'mpg', 'mpeg'],
 iframe: ['asp', 'aspx', 'cgi', 'cfm', 'htm', 'html', 'pl', 'php',
 'php3', 'php4', 'php5', 'phtml', 'rb', 'rhtml', 'shtml',
 'txt', 'vbs']
 }

 };

 /**
 * Stores the default set of options in case a custom set of options is used
 * on a link-by-link basis so we can restore them later.
 *
 * @property {Object} default_options
 * @private
 */
 var default_options = null;

 /**
 * Shorthand for Shadowbox.lib.
 *
 * @property {Object} SL
 * @private
 */
 var SL = Shadowbox.lib;

 /**
 * An object containing some regular expressions we'll need later. Compiled
 * up front for speed.
 *
 * @property {Object} RE
 * @private
 */
 var RE = {
 resize: /(img|swf|flv)/, // file types to resize
 overlay: /(img|iframe|html|inline)/, // content types to not use an overlay image for on FF Mac
 swf: /\.swf\s*$/i, // swf file extension
 flv: /\.flv\s*$/i, // flv file extension
 domain: /:\/\/(.*?)[:\/]/, // domain prefix
 inline: /#(.+)$/, // inline element id
 rel: /^(light|shadow)box/i, // rel attribute format
 gallery: /^(light|shadow)box\[(.*?)\]/i, // rel attribute format for gallery link
 unsupported: /^unsupported-(\w+)/, // unsupported media type
 param: /\s*([a-z_]*?)\s*=\s*(.+)\s*/, // rel string parameter
 empty: /^(?:br|frame|hr|img|input|link|meta|range|spacer|wbr|area|param|col)$/i // elements that don't have children
 };

 /**
 * A cache of options for links that have been set up for use with
 * Shadowbox.
 *
 * @property {Array} cache
 * @private
 */
 var cache = [];

 /**
 * An array of pieces currently being viewed. In the case of non-gallery
 * pieces, this will only hold one object.
 *
 * @property {Array} current_gallery
 * @private
 */
 var current_gallery;

 /**
 * The array index of the current_gallery that is currently being viewed.
 *
 * @property {Number} current
 * @private
 */
 var current;

 /**
 * Keeps track of the current optimal height of the box. We use this so that
 * if the user resizes the browser window to get a better view, and we're
 * currently at a size smaller than the optimal, we can resize easily.
 *
 * @see resizeContent()
 * @property {Number} optimal_height
 * @private
 */
 var optimal_height = options.initialHeight;

 /**
 * Keeps track of the current optimal width of the box. See optimal_height
 * explanation (above).
 *
 * @property {Number} optimal_width
 * @private
 */
 var optimal_width = options.initialWidth;

 /**
 * Keeps track of the current height of the box. This is useful in drag
 * calculations.
 *
 * @property {Number} current_height
 * @private
 */
 var current_height = 0;

 /**
 * Keeps track of the current width of the box. Useful in drag calculations.
 *
 * @property {Number} current_width
 * @private
 */
 var current_width = 0;

 /**
 * Resource used to preload images. It's class-level so that when a new
 * image is requested, the same resource can be reassigned, cancelling
 * the original's callback.
 *
 * @property {HTMLElement} preloader
 * @private
 */
 var preloader;

 /**
 * Keeps track of whether or not Shadowbox has been initialized. We never
 * want to initialize twice.
 *
 * @property {Boolean} initialized
 * @private
 */
 var initialized = false;

 /**
 * Keeps track of whether or not Shadowbox is activated.
 *
 * @property {Boolean} activated
 * @private
 */
 var activated = false;

 /**
 * Keeps track of 4 floating values (x, y, start_x, & start_y) that are used
 * in the drag calculations.
 *
 * @property {Object} drag
 * @private
 */
 var drag;

 /**
 * Holds the draggable element so we don't have to fetch it every time
 * the mouse moves.
 *
 * @property {HTMLElement} draggable
 * @private
 */
 var draggable;

 /**
 * Keeps track of whether or not we're currently using the overlay
 * background image to display the current gallery. We do this because we
 * use different methods for fading the overlay in and out. The color fill
 * overlay fades in and out nicely, but the image overlay stutters. By
 * keeping track of the type of overlay in use, we don't have to check again
 * what type of overlay we're using when it's time to get rid of it later.
 *
 * @property {Boolean} overlay_img_needed
 * @private
 */
 var overlay_img_needed;

 /**
 * These parameters for simple browser detection. Used in Ext.js.
 *
 * @ignore
 */
 var ua = navigator.userAgent.toLowerCase();
 var isStrict = document.compatMode == 'CSS1Compat',
 isOpera = ua.indexOf("opera") > -1,
 isIE = ua.indexOf('msie') > -1,
 isIE7 = ua.indexOf('msie 7') > -1,
 isBorderBox = isIE && !isStrict,
 isSafari = (/webkit|khtml/).test(ua),
 isSafari3 = isSafari && !!(document.evaluate),
 isGecko = !isSafari && ua.indexOf('gecko') > -1,
 isWindows = (ua.indexOf('windows') != -1 || ua.indexOf('win32') != -1),
 isMac = (ua.indexOf('macintosh') != -1 || ua.indexOf('mac os x') != -1),
 isLinux = (ua.indexOf('linux') != -1);

 /**
 * Do we need to hack the position to make Shadowbox appear fixed? We could
 * hack this using CSS, but let's just get over all the hacks and let IE6
 * users get what they deserve! Down with hacks! Hmm...now that I think
 * about it, I should just flash all kinds of alerts and annoying popups on
 * their screens, and then redirect them to some foreign spyware site that
 * will upload a nasty virus...
 *
 * @property {Boolean} absolute_pos
 * @private
 */
 var absolute_pos = isIE && !isIE7;

 /**
 * Contains plugin support information. Each property of this object is a
 * boolean indicating whether that plugin is supported.
 *
 * - fla: Flash player
 * - qt: QuickTime player
 * - wmp: Windows Media player
 * - f4m: Flip4Mac plugin
 *
 * @property {Object} plugins
 * @private
 */
 var plugins = null;

 // detect plugin support
 if(navigator.plugins && navigator.plugins.length){
 var detectPlugin = function(plugin_name){
 var detected = false;
 for (var i = 0, len = navigator.plugins.length; i < len; ++i){
 if(navigator.plugins[i].name.indexOf(plugin_name) > -1){
 detected = true;
 break;
 }
 }
 return detected;
 };
 var f4m = detectPlugin('Flip4Mac');
 var plugins = {
 fla: detectPlugin('Shockwave Flash'),
 qt: detectPlugin('QuickTime'),
 wmp: !f4m && detectPlugin('Windows Media'), // if it's Flip4Mac, it's not really WMP
 f4m: f4m
 };
 }else{
 var detectPlugin = function(plugin_name){
 var detected = false;
 try {
 var axo = new ActiveXObject(plugin_name);
 if(axo){
 detected = true;
 }
 } catch (e) {}
 return detected;
 };
 var plugins = {
 fla: detectPlugin('ShockwaveFlash.ShockwaveFlash'),
 qt: detectPlugin('QuickTime.QuickTime'),
 wmp: detectPlugin('wmplayer.ocx'),
 f4m: false
 };
 }

 /**
 * Applies all properties of e to o. This function is recursive so that if
 * any properties of e are themselves objects, those objects will be applied
 * to objects with the same key that may exist in o.
 *
 * @param {Object} o The original object
 * @param {Object} e The extension object
 * @return {Object} The original object with all properties
 * of the extension object applied (deep)
 * @private
 */
 var apply = function(o, e){
 for(var p in e) o[p] = e[p];
 return o;
 };

 /**
 * Determines if the given object is an anchor/area element.
 *
 * @param {mixed} el The object to check
 * @return {Boolean} True if the object is a link element
 * @private
 */
 var isLink = function(el){
 return typeof el.tagName == 'string' && (el.tagName.toUpperCase() == 'A' || el.tagName.toUpperCase() == 'AREA');
 };

 /**
 * Gets the height of the viewport in pixels. Note: This function includes
 * scrollbars in Safari 3.
 *
 * @return {Number} The height of the viewport
 * @public
 * @static
 */
 SL.getViewportHeight = function(){
 var height = window.innerHeight; // Safari
 var mode = document.compatMode;
 if((mode || isIE) && !isOpera){
 height = isStrict ? document.documentElement.clientHeight : document.body.clientHeight;
 }
 return height;
 };

 /**
 * Gets the width of the viewport in pixels. Note: This function includes
 * scrollbars in Safari 3.
 *
 * @return {Number} The width of the viewport
 * @public
 * @static
 */
 SL.getViewportWidth = function(){
 var width = window.innerWidth; // Safari
 var mode = document.compatMode;
 if(mode || isIE){
 width = isStrict ? document.documentElement.clientWidth : document.body.clientWidth;
 }
 return width;
 };

 /**
 * Gets the height of the document (body and its margins) in pixels.
 *
 * @return {Number} The height of the document
 * @public
 * @static
 */
 SL.getDocumentHeight = function(){
 var scrollHeight = isStrict ? document.documentElement.scrollHeight : document.body.scrollHeight;
 return Math.max(scrollHeight, SL.getViewportHeight());
 };

 /**
 * Gets the width of the document (body and its margins) in pixels.
 *
 * @return {Number} The width of the document
 * @public
 * @static
 */
 SL.getDocumentWidth = function(){
 var scrollWidth = isStrict ? document.documentElement.scrollWidth : document.body.scrollWidth;
 return Math.max(scrollWidth, SL.getViewportWidth());
 };

 /**
 * A utility function used by the fade functions to clear the opacity
 * style setting of the given element. Required in some cases for IE.
 * Based on Ext.Element's clearOpacity.
 *
 * @param {HTMLElement} el The DOM element
 * @return void
 * @private
 */
 var clearOpacity = function(el){
 if(isIE){
 if(typeof el.style.filter == 'string' && (/alpha/i).test(el.style.filter)){
 el.style.filter = '';
 }
 }else{
 el.style.opacity = '';
 el.style['-moz-opacity'] = '';
 el.style['-khtml-opacity'] = '';
 }
 };

 /**
 * Fades the given element from 0 to the specified opacity.
 *
 * @param {HTMLElement} el The DOM element to fade
 * @param {Number} endingOpacity The final opacity to animate to
 * @param {Number} duration The duration of the animation
 * (in seconds)
 * @param {Function} callback A callback function to call
 * when the animation completes
 * @return void
 * @private
 */
 var fadeIn = function(el, endingOpacity, duration, callback){
 if(options.animate){
 SL.setStyle(el, 'opacity', 0);
 el.style.visibility = 'visible';
 SL.animate(el, {
 opacity: { to: endingOpacity }
 }, duration, function(){
 if(endingOpacity == 1) clearOpacity(el);
 if(typeof callback == 'function') callback();
 });
 }else{
 if(endingOpacity == 1){
 clearOpacity(el);
 }else{
 SL.setStyle(el, 'opacity', endingOpacity);
 }
 el.style.visibility = 'visible';
 if(typeof callback == 'function') callback();
 }
 };

 /**
 * Fades the given element from its current opacity to 0.
 *
 * @param {HTMLElement} el The DOM element to fade
 * @param {Number} duration The duration of the fade animation
 * @param {Function} callback A callback function to call when
 * the animation completes
 * @return void
 * @private
 */
 var fadeOut = function(el, duration, callback){
 var cb = function(){
 el.style.visibility = 'hidden';
 clearOpacity(el);
 if(typeof callback == 'function') callback();
 };
 if(options.animate){
 SL.animate(el, {
 opacity: { to: 0 }
 }, duration, cb);
 }else{
 cb();
 }
 };

 /**
 * Appends an HTML fragment to the given element.
 *
 * @param {String/HTMLElement} el The element to append to
 * @param {String} html The HTML fragment to use
 * @return {HTMLElement} The newly appended element
 * @private
 */
 var appendHTML = function(el, html){
 el = SL.get(el);
 if(el.insertAdjacentHTML){
 el.insertAdjacentHTML('BeforeEnd', html);
 return el.lastChild;
 }
 if(el.lastChild){
 var range = el.ownerDocument.createRange();
 range.setStartAfter(el.lastChild);
 var frag = range.createContextualFragment(html);
 el.appendChild(frag);
 return el.lastChild;
 }else{
 el.innerHTML = html;
 return el.lastChild;
 }
 };

 /**
 * Overwrites the HTML of the given element.
 *
 * @param {String/HTMLElement} el The element to overwrite
 * @param {String} html The new HTML to use
 * @return {HTMLElement} The new firstChild element
 * @private
 */
 var overwriteHTML = function(el, html){
 el = SL.get(el);
 el.innerHTML = html;
 return el.firstChild;
 };

 /**
 * Gets either the offsetHeight or the height of the given element plus
 * padding and borders (when offsetHeight is not available). Based on
 * Ext.Element's getComputedHeight.
 *
 * @return {Number} The computed height of the element
 * @private
 */
 var getComputedHeight = function(el){
 var h = Math.max(el.offsetHeight, el.clientHeight);
 if(!h){
 h = parseInt(SL.getStyle(el, 'height'), 10) || 0;
 if(!isBorderBox){
 h += parseInt(SL.getStyle(el, 'padding-top'), 10)
 + parseInt(SL.getStyle(el, 'padding-bottom'), 10)
 + parseInt(SL.getStyle(el, 'border-top-width'), 10)
 + parseInt(SL.getStyle(el, 'border-bottom-width'), 10);
 }
 }
 return h;
 };

 /**
 * Gets either the offsetWidth or the width of the given element plus
 * padding and borders (when offsetWidth is not available). Based on
 * Ext.Element's getComputedWidth.
 *
 * @return {Number} The computed width of the element
 * @private
 */
 var getComputedWidth = function(el){
 var w = Math.max(el.offsetWidth, el.clientWidth);
 if(!w){
 w = parseInt(SL.getStyle(el, 'width'), 10) || 0;
 if(!isBorderBox){
 w += parseInt(SL.getStyle(el, 'padding-left'), 10)
 + parseInt(SL.getStyle(el, 'padding-right'), 10)
 + parseInt(SL.getStyle(el, 'border-left-width'), 10)
 + parseInt(SL.getStyle(el, 'border-right-width'), 10);
 }
 }
 return w;
 };

 /**
 * Determines the player needed to display the file at the given URL. If
 * the file type is not supported, the return value will be 'unsupported'.
 * If the file type is not supported but the correct player can be
 * determined, the return value will be 'unsupported-*' where * will be the
 * player abbreviation (e.g. 'qt' = QuickTime).
 *
 * @param {String} url The url of the file
 * @return {String} The name of the player to use
 * @private
 */
 var getPlayerType = function(url){
 if(RE.img.test(url)) return 'img';
 var match = url.match(RE.domain);
 var this_domain = match ? document.domain == match[1] : false;
 if(url.indexOf('#') > -1 && this_domain) return 'inline';
 var q_index = url.indexOf('?');
 if(q_index > -1) url = url.substring(0, q_index); // strip query string for player detection purposes
 if(RE.swf.test(url)) return plugins.fla ? 'swf' : 'unsupported-swf';
 if(RE.flv.test(url)) return plugins.fla ? 'flv' : 'unsupported-flv';
 if(RE.qt.test(url)) return plugins.qt ? 'qt' : 'unsupported-qt';
 if(RE.wmp.test(url)){
 if(plugins.wmp){
 return 'wmp';
 }else if(plugins.f4m){
 return 'qt';
 }else{
 return isMac ? (plugins.qt ? 'unsupported-f4m' : 'unsupported-qtf4m') : 'unsupported-wmp';
 }
 }else if(RE.qtwmp.test(url)){
 if(plugins.qt){
 return 'qt';
 }else if(plugins.wmp){
 return 'wmp';
 }else{
 return isMac ? 'unsupported-qt' : 'unsupported-qtwmp';
 }
 }else if(!this_domain || RE.iframe.test(url)){
 return 'iframe';
 }
 return 'unsupported';
 };

 /**
 * Handles all clicks on links that have been set up to work with Shadowbox
 * and cancels the default event behavior when appropriate.
 *
 * @param {Event} ev The click event object
 * @return void
 * @private
 */
 var handleClick = function(ev){
 // get anchor/area element
 var link;
 if(isLink(this)){
 link = this; // jQuery, Prototype, YUI
 }else{
 link = SL.getTarget(ev); // Ext
 while(!isLink(link) && link.parentNode){
 link = link.parentNode;
 }
 }

 Shadowbox.open(link);
 if(current_gallery.length) SL.preventDefault(ev);
 };

 /**
 * Sets up the current gallery for the given object. Modifies the current
 * and current_gallery variables to contain the appropriate information.
 * Also, checks to see if there are any gallery pieces that are not
 * supported by the client's browser/plugins. If there are, they will be
 * handled according to the handleUnsupported option.
 *
 * @param {Object} obj The content to get the gallery for
 * @return void
 * @private
 */
 var setupGallery = function(obj){
 // create a copy so it doesn't get modified later
 var copy = apply({}, obj);

 // is it part of a gallery?
 if(!obj.gallery){ // single item, no gallery
 current_gallery = [copy];
 current = 0;
 }else{
 current_gallery = []; // clear the current gallery
 var index, ci;
 for(var i = 0, len = cache.length; i < len; ++i){
 ci = cache[i];
 if(ci.gallery){
 if(ci.content == obj.content
 && ci.gallery == obj.gallery
 && ci.title == obj.title){ // compare content, gallery, & title
 index = current_gallery.length; // key element found
 }
 if(ci.gallery == obj.gallery){
 current_gallery.push(apply({}, ci));
 }
 }
 }
 // if not found in cache, prepend to front of gallery
 if(index == null){
 current_gallery.unshift(copy);
 index = 0;
 }
 current = index;
 }

 // are any media in the current gallery supported?
 var match, r;
 for(var i = 0, len = current_gallery.length; i < len; ++i){
 r = false;
 if(current_gallery[i].type == 'unsupported'){ // don't support this at all
 r = true;
 }else if(match = RE.unsupported.exec(current_gallery[i].type)){ // handle unsupported elements
 if(options.handleUnsupported == 'link'){
 current_gallery[i].type = 'html';
 // generate a link to the appropriate plugin download page(s)
 var m;
 switch(match[1]){
 case 'qtwmp':
 m = String.format(options.text.errors.either,
 options.errors.qt.url, options.errors.qt.name,
 options.errors.wmp.url, options.errors.wmp.name);
 break;
 case 'qtf4m':
 m = String.format(options.text.errors.shared,
 options.errors.qt.url, options.errors.qt.name,
 options.errors.f4m.url, options.errors.f4m.name);
 break;
 default:
 if(match[1] == 'swf' || match[1] == 'flv') match[1] = 'fla';
 m = String.format(options.text.errors.single,
 options.errors[match[1]].url, options.errors[match[1]].name);
 }
 current_gallery[i] = apply(current_gallery[i], {
 height: 160, // error messages are short so they
 width: 320, // only need a small box to display properly
 content: '<div class="shadowbox_message">' + m + '</div>'
 });
 }else{
 r = true;
 }
 }else if(current_gallery[i].type == 'inline'){ // handle inline elements
 // retrieve the innerHTML of the inline element
 var match = RE.inline.exec(current_gallery[i].content);
 if(match){
 var el;
 if(el = SL.get(match[1])){
 current_gallery[i].content = el.innerHTML;
 }else{
 throw 'No element found with id ' + match[1];
 }
 }else{
 throw 'No element id found for inline content';
 }
 }
 if(r){
 // remove the element from the gallery
 current_gallery.splice(i, 1);
 if(i < current) --current;
 --i;
 }
 }
 };

 /**
 * Hides the title bar and toolbar and populates them with the proper
 * content.
 *
 * @return void
 * @private
 */
 var buildBars = function(){
 var link = current_gallery[current];
 if(!link) return; // nothing to build

 // build the title
 var title_i = SL.get('shadowbox_title_inner');
 title_i.innerHTML = (link.title) ? link.title : '';
 // empty the toolbar
 var tool_i = SL.get('shadowbox_toolbar_inner');
 tool_i.innerHTML = '';

 // build the nav
 if(options.displayNav){
 tool_i.innerHTML = String.format(options.skin.close, options.text.close);
 if(current_gallery.length > 1){
 if(options.continuous){
 // show both
 appendHTML(tool_i, String.format(options.skin.next, options.text.next));
 appendHTML(tool_i, String.format(options.skin.prev, options.text.prev));
 }else{
 // not last in the gallery, show the next link
 if((current_gallery.length - 1) > current){
 appendHTML(tool_i, String.format(options.skin.next, options.text.next));
 }
 // not first in the gallery, show the previous link
 if(current > 0){
 appendHTML(tool_i, String.format(options.skin.prev, options.text.prev));
 }
 }
 }
 }

 // build the counter
 if(current_gallery.length > 1 && options.displayCounter){
 // append the counter div
 var counter = '';
 if(options.counterType == 'skip'){
 for(var i = 0, len = current_gallery.length; i < len; ++i){
 counter += '<a href="javascript:Shadowbox.change(' + i + ');"';
 if(i == current){
 counter += ' class="shadowbox_counter_current"';
 }
 counter += '>' + (i + 1) + '</a>';
 }
 }else{
 counter = (current + 1) + ' of ' + current_gallery.length;
 }
 appendHTML(tool_i, String.format(options.skin.counter, counter));
 }
 };

 /**
 * Hides the title and tool bars.
 *
 * @param {Function} callback A function to call on finish
 * @return void
 * @private
 */
 var hideBars = function(callback){
 var title_m = getComputedHeight(SL.get('shadowbox_title'));
 var tool_m = 0 - getComputedHeight(SL.get('shadowbox_toolbar'));
 var title_i = SL.get('shadowbox_title_inner');
 var tool_i = SL.get('shadowbox_toolbar_inner');

 if(options.animate && callback){
 // animate the transition
 SL.animate(title_i, {
 marginTop: { to: title_m }
 }, 0.2);
 SL.animate(tool_i, {
 marginTop: { to: tool_m }
 }, 0.2, callback);
 }else{
 SL.setStyle(title_i, 'marginTop', title_m + 'px');
 SL.setStyle(tool_i, 'marginTop', tool_m + 'px');
 }
 };

 /**
 * Shows the title and tool bars.
 *
 * @param {Function} callback A callback function to execute after
 * the animation completes
 * @return void
 * @private
 */
 var showBars = function(callback){
 var title_i = SL.get('shadowbox_title_inner');
 if(options.animate){
 if(title_i.innerHTML != ''){
 SL.animate(title_i, { marginTop: { to: 0 } }, 0.35);
 }
 SL.animate(SL.get('shadowbox_toolbar_inner'), {
 marginTop: { to: 0 }
 }, 0.35, callback);
 }else{
 if(title_i.innerHTML != ''){
 SL.setStyle(title_i, 'margin-top', '0px');
 }
 SL.setStyle(SL.get('shadowbox_toolbar_inner'), 'margin-top', '0px');
 callback();
 }
 };

 /**
 * Resets the class drag variable.
 *
 * @return void
 * @private
 */
 var resetDrag = function(){
 drag = {
 x: 0,
 y: 0,
 start_x: null,
 start_y: null
 };
 };

 /**
 * Toggles the drag function on and off.
 *
 * @param {Boolean} on True to toggle on, false to toggle off
 * @return void
 * @private
 */
 var toggleDrag = function(on){
 if(on){
 resetDrag();
 // add drag layer to prevent browser dragging of actual image
 var styles = [
 'position:absolute',
 'cursor:' + (isGecko ? '-moz-grab' : 'move')
 ];
 // make drag layer transparent
 styles.push(isIE ? 'background-color:#fff;filter:alpha(opacity=0)' : 'background-color:transparent');
 appendHTML('shadowbox_body_inner', '<div id="shadowbox_drag_layer" style="' + styles.join(';') + '"></div>');
 SL.addEvent(SL.get('shadowbox_drag_layer'), 'mousedown', listenDrag);
 }else{
 var d = SL.get('shadowbox_drag_layer');
 if(d){
 SL.removeEvent(d, 'mousedown', listenDrag);
 SL.remove(d);
 }
 }
 };

 /**
 * Sets up a drag listener on the document. Called when the mouse button is
 * pressed (mousedown).
 *
 * @param {mixed} ev The mousedown event
 * @return void
 * @private
 */
 var listenDrag = function(ev){
 drag.start_x = ev.clientX;
 drag.start_y = ev.clientY;
 draggable = SL.get('shadowbox_content');
 SL.addEvent(document, 'mousemove', positionDrag);
 SL.addEvent(document, 'mouseup', unlistenDrag);
 if(isGecko) SL.setStyle(SL.get('shadowbox_drag_layer'), 'cursor', '-moz-grabbing');
 };

 /**
 * Removes the drag listener. Called when the mouse button is released
 * (mouseup).
 *
 * @return void
 * @private
 */
 var unlistenDrag = function(){
 SL.removeEvent(document, 'mousemove', positionDrag);
 SL.removeEvent(document, 'mouseup', unlistenDrag); // clean up
 if(isGecko) SL.setStyle(SL.get('shadowbox_drag_layer'), 'cursor', '-moz-grab');
 };

 /**
 * Positions an oversized image on drag.
 *
 * @param {mixed} ev The drag event
 * @return void
 * @private
 */
 var positionDrag = function(ev){
 var move_y = ev.clientY - drag.start_y;
 drag.start_y = drag.start_y + move_y;
 drag.y = Math.max(Math.min(0, drag.y + move_y), current_height - optimal_height); // y boundaries
 SL.setStyle(draggable, 'top', drag.y + 'px');
 var move_x = ev.clientX - drag.start_x;
 drag.start_x = drag.start_x + move_x;
 drag.x = Math.max(Math.min(0, drag.x + move_x), current_width - optimal_width); // x boundaries
 SL.setStyle(draggable, 'left', drag.x + 'px');
 };

 /**
 * Loads the Shadowbox with the current piece.
 *
 * @return void
 * @private
 */
 var loadContent = function(){
 var obj = current_gallery[current];
 if(!obj) return; // invalid

 buildBars();

 switch(obj.type){
 case 'img':
 // preload the image
 preloader = new Image();
 preloader.onload = function(){
 // images default to image height and width
 var h = obj.height ? parseInt(obj.height, 10) : preloader.height;
 var w = obj.width ? parseInt(obj.width, 10) : preloader.width;
 resizeContent(h, w, function(dims){
 showBars(function(){
 setContent({
 tag: 'img',
 height: dims.i_height,
 width: dims.i_width,
 src: obj.content,
 style: 'position:absolute'
 });
 if(dims.enableDrag && options.handleLgImages == 'drag'){
 // listen for drag
 toggleDrag(true);
 SL.setStyle(SL.get('shadowbox_drag_layer'), {
 height: dims.i_height + 'px',
 width: dims.i_width + 'px'
 });
 }
 finishContent();
 });
 });

 preloader.onload = function(){}; // clear onload for IE
 };
 preloader.src = obj.content;
 break;

 case 'swf':
 case 'flv':
 case 'qt':
 case 'wmp':
 var markup = Shadowbox.movieMarkup(obj);
 resizeContent(markup.height, markup.width, function(){
 showBars(function(){
 setContent(markup);
 finishContent();
 });
 });
 break;

 case 'iframe':
 // iframes default to full viewport height and width
 var h = obj.height ? parseInt(obj.height, 10) : SL.getViewportHeight();
 var w = obj.width ? parseInt(obj.width, 10) : SL.getViewportWidth();
 var content = {
 tag: 'iframe',
 name: 'shadowbox_content',
 height: '100%',
 width: '100%',
 frameborder: '0',
 marginwidth: '0',
 marginheight: '0',
 scrolling: 'auto'
 };

 resizeContent(h, w, function(dims){
 showBars(function(){
 setContent(content);
 var win = (isIE)
 ? SL.get('shadowbox_content').contentWindow
 : window.frames['shadowbox_content'];
 win.location = obj.content;
 finishContent();
 });
 });
 break;

 case 'html':
 case 'inline':
 // HTML content defaults to full viewport height and width
 var h = obj.height ? parseInt(obj.height, 10) : SL.getViewportHeight();
 var w = obj.width ? parseInt(obj.width, 10) : SL.getViewportWidth();
 var content = {
 tag: 'div',
 cls: 'html', /* give special class to make scrollable */
 html: obj.content
 };
 resizeContent(h, w, function(){
 showBars(function(){
 setContent(content);
 finishContent();
 });
 });
 break;

 default:
 // should never happen
 throw 'Shadowbox cannot open content of type ' + obj.type;
 }

 // preload neighboring images
 if(current_gallery.length > 0){
 var next = current_gallery[current + 1];
 if(!next){
 next = current_gallery[0];
 }
 if(next.type == 'img'){
 var preload_next = new Image();
 preload_next.src = next.href;
 }

 var prev = current_gallery[current - 1];
 if(!prev){
 prev = current_gallery[current_gallery.length - 1];
 }
 if(prev.type == 'img'){
 var preload_prev = new Image();
 preload_prev.src = prev.href;
 }
 }
 };

 /**
 * Removes old content and sets the new content of the Shadowbox.
 *
 * @param {Object} obj The content to set (appropriate to pass
 * directly to Shadowbox.createHTML())
 * @return {HTMLElement} The newly appended element (or null if
 * none is provided)
 * @private
 */
 var setContent = function(obj){
 var id = 'shadowbox_content';
 var content = SL.get(id);
 if(content){
 // remove old content first
 switch(content.tagName.toUpperCase()){
 case 'OBJECT':
 // if we're in a gallery (i.e. changing and there's a new
 // object) we want the LAST link object
 var link = current_gallery[(obj ? current - 1 : current)];
 if(link.type == 'wmp' && isIE){
 try{
 shadowbox_content.controls.stop(); // stop the movie
 shadowbox_content.URL = 'non-existent.wmv'; // force player refresh
 window.shadowbox_content = function(){}; // remove from window
 }catch(e){}
 }else if(link.type == 'qt' && isSafari){
 try{
 document.shadowbox_content.Stop(); // stop QT movie
 }catch(e){}
 // stop QT audio stream for movies that have not yet loaded
 content.innerHTML = '';
 // console.log(document.shadowbox_content);
 }
 setTimeout(function(){ // using setTimeout prevents browser crashes with WMP
 SL.remove(content);
 }, 10);
 break;
 case 'IFRAME':
 SL.remove(content);
 if(isGecko) delete window.frames[id]; // needed for Firefox
 break;
 default:
 SL.remove(content);
 }
 }
 if(obj){
 if(!obj.id) obj.id = id;
 return appendHTML('shadowbox_body_inner', Shadowbox.createHTML(obj));
 }
 return null;
 };

 /**
 * This function is used as the callback after the Shadowbox has been
 * positioned, resized, and loaded with content.
 *
 * @return void
 * @private
 */
 var finishContent = function(){
 var obj = current_gallery[current];
 if(!obj) return; // invalid
 hideLoading(function(){
 listenKeyboard(true);
 // fire onFinish handler
 if(options.onFinish && typeof options.onFinish == 'function'){
 options.onFinish(obj);
 }
 });
 };

 /**
 * Resizes and positions the content box using the given height and width.
 * If the callback parameter is missing, the transition will not be
 * animated. If the callback parameter is present, it will be passed the
 * new calculated dimensions object as its first parameter. Note: the height
 * and width here should represent the optimal height and width of the box.
 *
 * @param {Function} callback A callback function to use when the
 * resize completes
 * @return void
 * @private
 */
 var resizeContent = function(height, width, callback){
 // update optimal height and width
 optimal_height = height;
 optimal_width = width;
 var resizable = RE.resize.test(current_gallery[current].type);
 var dims = getDimensions(optimal_height, optimal_width, resizable);
 if(callback){
 var cb = function(){ callback(dims); };
 switch(options.animSequence){
 case 'hw':
 adjustHeight(dims.height, dims.top, true, function(){
 adjustWidth(dims.width, true, cb);
 });
 break;
 case 'wh':
 adjustWidth(dims.width, true, function(){
 adjustHeight(dims.height, dims.top, true, cb);
 });
 break;
 default: // sync
 adjustWidth(dims.width, true);
 adjustHeight(dims.height, dims.top, true, cb);
 }
 }else{ // window resize
 adjustWidth(dims.width, false);
 adjustHeight(dims.height, dims.top, false);
 // resize content images & flash in 'resize' mode
 if(options.handleLgImages == 'resize' && resizable){
 var content = SL.get('shadowbox_content');
 if(content){ // may be animating, not present
 content.height = dims.i_height;
 content.width = dims.i_width;
 }
 }
 }
 };

 /**
 * Calculates the dimensions for Shadowbox, taking into account the borders,
 * margins, and surrounding elements of the shadowbox_body. If the image
 * is still to large for Shadowbox, and options.handleLgImages is 'resize',
 * the resized dimensions will be returned (preserving the original aspect
 * ratio). Otherwise, the originally calculated dimensions will be returned.
 * The returned object will have the following properties:
 *
 * - height: The height to use for shadowbox_body_inner
 * - width: The width to use for shadowbox
 * - i_height: The height to use for resizable content
 * - i_width: The width to use for resizable content
 * - top: The top to use for shadowbox
 * - enableDrag: True if dragging should be enabled (image is oversized)
 *
 * @param {Number} o_height The optimal height
 * @param {Number} o_width The optimal width
 * @param {Boolean} resizable True if the content is able to be
 * resized. Defaults to false.
 * @return {Object} The resize dimensions (see above)
 * @private
 */
 var getDimensions = function(o_height, o_width, resizable){
 if(typeof resizable == 'undefined') resizable = false;

 var height = o_height = parseInt(o_height);
 var width = o_width = parseInt(o_width);
 var shadowbox_b = SL.get('shadowbox_body');

 // calculate the max height
 var view_height = SL.getViewportHeight();
 var extra_height = parseInt(SL.getStyle(shadowbox_b, 'border-top-width'), 10)
 + parseInt(SL.getStyle(shadowbox_b, 'border-bottom-width'), 10)
 + parseInt(SL.getStyle(shadowbox_b, 'margin-top'), 10)
 + parseInt(SL.getStyle(shadowbox_b, 'margin-bottom'), 10)
 + getComputedHeight(SL.get('shadowbox_title'))
 + getComputedHeight(SL.get('shadowbox_toolbar'))
 + (2 * options.viewportPadding);
 if((height + extra_height) >= view_height){
 height = view_height - extra_height;
 }

 // calculate the max width
 var view_width = SL.getViewportWidth();
 var extra_body_width = parseInt(SL.getStyle(shadowbox_b, 'border-left-width'), 10)
 + parseInt(SL.getStyle(shadowbox_b, 'border-right-width'), 10)
 + parseInt(SL.getStyle(shadowbox_b, 'margin-left'), 10)
 + parseInt(SL.getStyle(shadowbox_b, 'margin-right'), 10);
 var extra_width = extra_body_width + (2 * options.viewportPadding);
 if((width + extra_width) >= view_width){
 width = view_width - extra_width;
 }

 // handle oversized images & flash
 var enableDrag = false;
 var i_height = o_height;
 var i_width = o_width;
 var handle = options.handleLgImages;
 if(resizable && (handle == 'resize' || handle == 'drag')){
 var change_h = (o_height - height) / o_height;
 var change_w = (o_width - width) / o_width;
 if(handle == 'resize'){
 if(change_h > change_w){
 width = Math.round((o_width / o_height) * height);
 }else if(change_w > change_h){
 height = Math.round((o_height / o_width) * width);
 }
 // adjust image height or width accordingly
 i_width = width;
 i_height = height;
 }else{
 // drag on oversized images only
 var link = current_gallery[current];
 if(link) enableDrag = link.type == 'img' && (change_h > 0 || change_w > 0);
 }
 }

 return {
 height: height,
 width: width + extra_body_width,
 i_height: i_height,
 i_width: i_width,
 top: ((view_height - (height + extra_height)) / 2) + options.viewportPadding,
 enableDrag: enableDrag
 };
 };

 /**
 * Centers Shadowbox vertically in the viewport. Needs to be called on
 * scroll in IE6 because it does not support fixed positioning.
 *
 * @return void
 * @private
 */
 var centerVertically = function(){
 var shadowbox = SL.get('shadowbox');
 var scroll = document.documentElement.scrollTop;
 var s_top = scroll + Math.round((SL.getViewportHeight() - (shadowbox.offsetHeight || 0)) / 2);
 SL.setStyle(shadowbox, 'top', s_top + 'px');
 };

 /**
 * Adjusts the height of shadowbox_body_inner and centers Shadowbox
 * vertically in the viewport.
 *
 * @param {Number} height The height of shadowbox_body_inner
 * @param {Number} top The top of the Shadowbox
 * @param {Boolean} animate True to animate the transition
 * @param {Function} callback A callback to use when the animation completes
 * @return void
 * @private
 */
 var adjustHeight = function(height, top, animate, callback){
 height = parseInt(height);

 // update current_height
 current_height = height;

 // adjust the height
 var sbi = SL.get('shadowbox_body_inner');
 if(animate && options.animate){
 SL.animate(sbi, {
 height: { to: height }
 }, options.resizeDuration, callback);
 }else{
 SL.setStyle(sbi, 'height', height + 'px');
 if(typeof callback == 'function') callback();
 }

 // manually adjust the top because we're using fixed positioning in IE6
 if(absolute_pos){
 // listen for scroll so we can adjust
 centerVertically();
 SL.addEvent(window, 'scroll', centerVertically);

 // add scroll to top
 top += document.documentElement.scrollTop;
 }

 // adjust the top
 var shadowbox = SL.get('shadowbox');
 if(animate && options.animate){
 SL.animate(shadowbox, {
 top: { to: top }
 }, options.resizeDuration);
 }else{
 SL.setStyle(shadowbox, 'top', top + 'px');
 }
 };

 /**
 * Adjusts the width of shadowbox.
 *
 * @param {Number} width The width to use
 * @param {Boolean} animate True to animate the transition
 * @param {Function} callback A callback to use when the animation completes
 * @return void
 * @private
 */
 var adjustWidth = function(width, animate, callback){
 width = parseInt(width);

 // update current_width
 current_width = width;

 var shadowbox = SL.get('shadowbox');
 if(animate && options.animate){
 SL.animate(shadowbox, {
 width: { to: width }
 }, options.resizeDuration, callback);
 }else{
 SL.setStyle(shadowbox, 'width', width + 'px');
 if(typeof callback == 'function') callback();
 }
 };

 /**
 * Sets up a listener on the document for keystrokes.
 *
 * @param {Boolean} on True to enable the listner, false to turn
 * it off
 * @return void
 * @private
 */
 var listenKeyboard = function(on){
 if(!options.enableKeys) return;
 if(on){
 document.onkeydown = handleKey;
 }else{
 document.onkeydown = '';
 }
 };

 /**
 * Asserts the given key or code is present in the array of valid keys.
 *
 * @param {Array} valid An array of valid keys and codes
 * @param {String} key The character that was pressed
 * @param {Number} code The key code that was pressed
 * @return {Boolean} True if the key is valid
 * @private
 */
 var assertKey = function(valid, key, code){
 return (valid.indexOf(key) != -1 || valid.indexOf(code) != -1);
 };

 /**
 * A listener function that will act on a key pressed.
 *
 * @param {Event} e The event object
 * @return void
 * @private
 */
 var handleKey = function(e){
 var code = e ? e.which : event.keyCode;
 var key = String.fromCharCode(code).toLowerCase();
 if(assertKey(options.keysClose, key, code)){
 Shadowbox.close();
 }else if(assertKey(options.keysPrev, key, code)){
 Shadowbox.previous();
 }else if(assertKey(options.keysNext, key, code)){
 Shadowbox.next();
 }
 };

 /**
 * Shows and hides elements that are troublesome for modal overlays.
 *
 * @param {Boolean} on True to show the elements, false otherwise
 * @return void
 * @private
 */
 var toggleTroubleElements = function(on){
 var vis = (on ? 'visible' : 'hidden');
 var selects = document.getElementsByTagName('select');
 for(i = 0, len = selects.length; i < len; ++i){
 selects[i].style.visibility = vis;
 }
 var objects = document.getElementsByTagName('object');
 for(i = 0, len = objects.length; i < len; ++i){
 objects[i].style.visibility = vis;
 }
 var embeds = document.getElementsByTagName('embed');
 for(i = 0, len = embeds.length; i < len; ++i){
 embeds[i].style.visibility = vis;
 }
 };

 /**
 * Fills the Shadowbox with the loading skin.
 *
 * @return void
 * @private
 */
 var showLoading = function(){
 var loading = SL.get('shadowbox_loading');
 overwriteHTML(loading, String.format(options.skin.loading,
 options.assetURL + options.loadingImage,
 options.text.loading,
 options.text.cancel));
 loading.style.visibility = 'visible';
 };

 /**
 * Hides the Shadowbox loading skin.
 *
 * @param {Function} callback The callback function to call after
 * hiding the loading skin
 * @return void
 * @private
 */
 var hideLoading = function(callback){
 var t = current_gallery[current].type;
 var anim = (t == 'img' || t == 'html'); // fade on images & html
 var loading = SL.get('shadowbox_loading');
 if(anim){
 fadeOut(loading, 0.35, callback);
 }else{
 loading.style.visibility = 'hidden';
 callback();
 }
 };

 /**
 * Sets the size of the overlay to the size of the document.
 *
 * @return void
 * @private
 */
 var resizeOverlay = function(){
 var overlay = SL.get('shadowbox_overlay');
 SL.setStyle(overlay, {
 height: '100%',
 width: '100%'
 });
 SL.setStyle(overlay, 'height', SL.getDocumentHeight() + 'px');
 if(!isSafari3){
 // Safari3 includes vertical scrollbar in SL.getDocumentWidth()!
 // Leave overlay width at 100% for now...
 SL.setStyle(overlay, 'width', SL.getDocumentWidth() + 'px');
 }
 };

 /**
 * Used to determine if the pre-made overlay background image is needed
 * instead of using the trasparent background overlay. A pre-made background
 * image is used for all but image pieces in FF Mac because it has problems
 * displaying correctly if the background layer is not 100% opaque. When
 * displaying a gallery, if any piece in the gallery meets these criteria,
 * the pre-made background image will be used.
 *
 * @return {Boolean} Whether or not an overlay image is needed
 * @private
 */
 var checkOverlayImgNeeded = function(){
 if(!(isGecko && isMac)) return false;
 for(var i = 0, len = current_gallery.length; i < len; ++i){
 if(!RE.overlay.exec(current_gallery[i].type)) return true;
 }
 return false;
 };

 /**
 * Activates (or deactivates) the Shadowbox overlay. If a callback function
 * is provided, we know we're activating. Otherwise, deactivate the overlay.
 *
 * @param {Function} callback A callback to call after activation
 * @return void
 * @private
 */
 var toggleOverlay = function(callback){
 var overlay = SL.get('shadowbox_overlay');
 if(overlay_img_needed == null){
 overlay_img_needed = checkOverlayImgNeeded();
 }

 if(callback){
 resizeOverlay(); // size the overlay before showing
 if(overlay_img_needed){
 SL.setStyle(overlay, {
 visibility: 'visible',
 backgroundColor: 'transparent',
 backgroundImage: 'url(' + options.assetURL + options.overlayBgImage + ')',
 backgroundRepeat: 'repeat',
 opacity: 1
 });
 callback();
 }else{
 SL.setStyle(overlay, {
 visibility: 'visible',
 backgroundColor: options.overlayColor,
 backgroundImage: 'none'
 });
 fadeIn(overlay, options.overlayOpacity, options.fadeDuration,
 callback);
 }
 }else{
 if(overlay_img_needed){
 SL.setStyle(overlay, 'visibility', 'hidden');
 }else{
 fadeOut(overlay, options.fadeDuration);
 }

 // reset for next time
 overlay_img_needed = null;
 }
 };

 /**
 * Initializes the Shadowbox environment. Appends Shadowbox' HTML to the
 * document and sets up listeners on the window and overlay element.
 *
 * @param {Object} opts The default options to use
 * @return void
 * @public
 * @static
 */
 Shadowbox.init = function(opts){
 if(initialized) return; // don't initialize twice
 options = apply(options, opts || {});

 // add markup
 appendHTML(document.body, options.skin.main);

 // compile file type regular expressions here for speed
 RE.img = new RegExp('\.(' + options.ext.img.join('|') + ')\s*$', 'i');
 RE.qt = new RegExp('\.(' + options.ext.qt.join('|') + ')\s*$', 'i');
 RE.wmp = new RegExp('\.(' + options.ext.wmp.join('|') + ')\s*$', 'i');
 RE.qtwmp = new RegExp('\.(' + options.ext.qtwmp.join('|') + ')\s*$', 'i');
 RE.iframe = new RegExp('\.(' + options.ext.iframe.join('|') + ')\s*$', 'i');

 // handle window resize events
 var id = null;
 var resize = function(){
 clearInterval(id);
 id = null;
 resizeOverlay();
 resizeContent(optimal_height, optimal_width);
 };
 SL.addEvent(window, 'resize', function(){
 if(activated){
 // use event buffering to prevent jerky window resizing
 if(id){
 clearInterval(id);
 id = null;
 }
 if(!id) id = setInterval(resize, 50);
 }
 });

 if(options.listenOverlay){
 // add a listener to the overlay
 SL.addEvent(SL.get('shadowbox_overlay'), 'click', Shadowbox.close);
 }

 // adjust some positioning if needed
 if(absolute_pos){
 // give the container absolute positioning
 SL.setStyle(SL.get('shadowbox_container'), 'position', 'absolute');
 // give shadowbox_body "layout"...whatever that is
 SL.setStyle('shadowbox_body', 'zoom', 1);
 // need to listen to the container element because it covers the top
 // half of the page
 SL.addEvent(SL.get('shadowbox_container'), 'click', function(e){
 var target = SL.getTarget(e);
 if(target.id && target.id == 'shadowbox_container') Shadowbox.close();
 });
 }

 // skip setup, will need to be done manually later
 if(!options.skipSetup) Shadowbox.setup();
 initialized = true;
 };

 /**
 * Sets up listeners on the given links that will trigger Shadowbox. If no
 * links are given, this method will set up every anchor element on the page
 * with the appropriate rel attribute. Note: Because AREA elements do not
 * support the rel attribute, they must be explicitly passed to this method.
 *
 * @param {Array} links An array (or array-like) list of anchor
 * and/or area elements to set up
 * @param {Object} opts Some options to use for the given links
 * @return void
 * @public
 * @static
 */
 Shadowbox.setup = function(links, opts){
 // get links if none specified
 if(!links){
 var links = [];
 var a = document.getElementsByTagName('a'), rel;
 for(var i = 0, len = a.length; i < len; ++i){
 rel = a[i].getAttribute('rel');
 if(rel && RE.rel.test(rel)) links[links.length] = a[i];
 }
 }else if(!links.length){
 links = [links]; // one link
 }

 var link;
 for(var i = 0, len = links.length; i < len; ++i){
 link = links[i];
 if(typeof link.shadowboxCacheKey == 'undefined'){
 // assign cache key expando
 // use integer primitive to avoid memory leak in IE
 link.shadowboxCacheKey = cache.length;
 SL.addEvent(link, 'click', handleClick); // add listener
 }
 cache[link.shadowboxCacheKey] = this.buildCacheObj(link, opts);
 }
 };

 /**
 * Builds an object from the original link element data to store in cache.
 * These objects contain (most of) the following keys:
 *
 * - el: the link element
 * - title: the linked file title
 * - type: the linked file type
 * - content: the linked file's URL
 * - gallery: the gallery the file belongs to (optional)
 * - height: the height of the linked file (only necessary for movies)
 * - width: the width of the linked file (only necessary for movies)
 * - options: custom options to use (optional)
 *
 * @param {HTMLElement} link The link element to process
 * @return {Object} An object representing the link
 * @public
 * @static
 */
 Shadowbox.buildCacheObj = function(link, opts){
 var href = link.href; // don't use getAttribute() here
 var o = {
 el: link,
 title: link.getAttribute('title'),
 type: getPlayerType(href),
 options: apply({}, opts || {}), // break the reference
 content: href
 };

 // remove link-level options from top-level options
 var opt, l_opts = ['title', 'type', 'height', 'width', 'gallery'];
 for(var i = 0, len = l_opts.length; i < len; ++i){
 opt = l_opts[i];
 if(typeof o.options[opt] != 'undefined'){
 o[opt] = o.options[opt];
 delete o.options[opt];
 }
 }

 // HTML options always trump JavaScript options, so do these last
 var rel = link.getAttribute('rel');
 if(rel){
 // extract gallery name from shadowbox[name] format
 var match = rel.match(RE.gallery);
 if(match) o.gallery = escape(match[2]);

 // other parameters
 var params = rel.split(';');
 for(var i = 0, len = params.length; i < len; ++i){
 match = params[i].match(RE.param);
 if(match){
 if(match[1] == 'options'){
 eval('o.options = apply(o.options, ' + match[2] + ')');
 }else{
 o[match[1]] = match[2];
 }
 }
 }
 }

 return o;
 };

 /**
 * Applies the given set of options to those currently in use. Note: Options
 * will be reset on Shadowbox.open() so this function is only useful after
 * it has already been called (while Shadowbox is open).
 *
 * @param {Object} opts The options to apply
 * @return void
 * @public
 * @static
 */
 Shadowbox.applyOptions = function(opts){
 if(opts){
 // use apply here to break references
 default_options = apply({}, options); // store default options
 options = apply(options, opts); // apply options
 }
 };

 /**
 * Reverts Shadowbox' options to the last default set in use before
 * Shadowbox.applyOptions() was called.
 *
 * @return void
 * @public
 * @static
 */
 Shadowbox.revertOptions = function(){
 if(default_options){
 options = default_options; // revert to default options
 default_options = null; // erase for next time
 }
 };

 /**
 * Opens the given object in Shadowbox. This object may be either an
 * anchor/area element, or an object similar to the one created by
 * Shadowbox.buildCacheObj().
 *
 * @param {mixed} obj The object or link element that defines
 * what to display
 * @return void
 * @public
 * @static
 */
 Shadowbox.open = function(obj, opts){
 if(activated) return; // already open
 activated = true;

 // is it a link?
 if(isLink(obj)){
 if(typeof obj.shadowboxCacheKey == 'undefined' || typeof cache[obj.shadowboxCacheKey] == 'undefined'){
 // link element that hasn't been set up before
 // create an object on-the-fly
 obj = this.buildCacheObj(obj, opts);
 }else{
 // link element that has been set up before, get from cache
 obj = cache[obj.shadowboxCacheKey];
 }
 }

 this.revertOptions();
 if(obj.options || opts){
 // use apply here to break references
 this.applyOptions(apply(apply({}, obj.options || {}), opts || {}));
 }

 // update current & current_gallery
 setupGallery(obj);

 // anything to display?
 if(current_gallery.length){
 // fire onOpen hook
 if(options.onOpen && typeof options.onOpen == 'function'){
 options.onOpen(obj);
 }

 // display:block here helps with correct dimension calculations
 SL.setStyle(SL.get('shadowbox'), 'display', 'block');

 toggleTroubleElements(false);
 var dims = getDimensions(options.initialHeight, options.initialWidth);
 adjustHeight(dims.height, dims.top);
 adjustWidth(dims.width);
 hideBars(false);

 // show the overlay and load the content
 toggleOverlay(function(){
 SL.setStyle(SL.get('shadowbox'), 'visibility', 'visible');
 showLoading();
 loadContent();
 });
 }
 };

 /**
 * Jumps to the piece in the current gallery with index num.
 *
 * @param {Number} num The gallery index to view
 * @return void
 * @public
 * @static
 */
 Shadowbox.change = function(num){
 if(!current_gallery) return; // no current gallery
 if(!current_gallery[num]){ // index does not exist
 if(!options.continuous){
 return;
 }else{
 num = (num < 0) ? (current_gallery.length - 1) : 0; // loop
 }
 }

 // update current
 current = num;

 // stop listening for drag
 toggleDrag(false);
 // empty the content
 setContent(null);
 // turn this back on when done
 listenKeyboard(false);

 // fire onChange handler
 if(options.onChange && typeof options.onChange == 'function'){
 options.onChange(current_gallery[current]);
 }

 showLoading();
 hideBars(loadContent);
 };

 /**
 * Jumps to the next piece in the gallery.
 *
 * @return {Boolean} True if the gallery changed to next item, false
 * otherwise
 * @public
 * @static
 */
 Shadowbox.next = function(){
 return this.change(current + 1);
 };

 /**
 * Jumps to the previous piece in the gallery.
 *
 * @return {Boolean} True if the gallery changed to previous item,
 * false otherwise
 * @public
 * @static
 */
 Shadowbox.previous = function(){
 return this.change(current - 1);
 };

 /**
 * Deactivates Shadowbox.
 *
 * @return void
 * @public
 * @static
 */
 Shadowbox.close = function(){
 if(!activated) return; // already closed

 // stop listening for keys
 listenKeyboard(false);
 // hide
 SL.setStyle(SL.get('shadowbox'), {
 display: 'none',
 visibility: 'hidden'
 });
 // stop listening for scroll on IE
 if(absolute_pos) SL.removeEvent(window, 'scroll', centerVertically);
 // stop listening for drag
 toggleDrag(false);
 // empty the content
 setContent(null);
 // prevent old image requests from loading
 if(preloader){
 preloader.onload = function(){};
 preloader = null;
 }
 // hide the overlay
 toggleOverlay(false);
 // turn on trouble elements
 toggleTroubleElements(true);

 // fire onClose handler
 if(options.onClose && typeof options.onClose == 'function'){
 options.onClose(current_gallery[current]);
 }

 activated = false;
 };

 /**
 * Clears Shadowbox' cache and removes listeners and expandos from all
 * cached link elements. May be used to completely reset Shadowbox in case
 * links on a page change.
 *
 * @return void
 * @public
 * @static
 */
 Shadowbox.clearCache = function(){
 for(var i = 0, len = cache.length; i < len; ++i){
 if(cache[i].el){
 SL.removeEvent(cache[i].el, 'click', handleClick);
 delete cache[i].shadowboxCacheKey;
 }
 }
 cache = [];
 };

 /**
 * Generates the markup necessary to embed the movie file with the given
 * link element. This markup will be browser-specific. Useful for generating
 * the media test suite.
 *
 * @param {HTMLElement} link The link to the media file
 * @return {Object} The proper markup to use (see above)
 * @public
 * @static
 */
 Shadowbox.movieMarkup = function(obj){
 // movies default to 300x300 pixels
 var h = obj.height ? parseInt(obj.height, 10) : 300;
 var w = obj.width ? parseInt(obj.width, 10) : 300;

 var autoplay = options.autoplayMovies;
 var controls = options.showMovieControls;
 if(obj.options){
 if(obj.options.autoplayMovies != null){
 autoplay = obj.options.autoplayMovies;
 }
 if(obj.options.showMovieControls != null){
 controls = obj.options.showMovieControls;
 }
 }

 var markup = {
 tag: 'object',
 name: 'shadowbox_content'
 };

 switch(obj.type){
 case 'swf':
 var dims = getDimensions(h, w, true);
 h = dims.height;
 w = dims.width;
 markup.type = 'application/x-shockwave-flash';
 markup.data = obj.content;
 markup.children = [
 { tag: 'param', name: 'movie', value: obj.content }
 ];
 break;
 case 'flv':
 autoplay = autoplay ? 'true' : 'false';
 var showicons = 'false';
 var a = h/w; // aspect ratio
 if(controls){
 showicons = 'true';
 h += 20; // height of JW FLV player controller
 }
 var dims = getDimensions(h, h/a, true); // resize
 h = dims.height;
 w = (h-(controls?20:0))/a; // maintain aspect ratio
 var flashvars = [
 'file=' + obj.content,
 'height=' + h,
 'width=' + w,
 'autostart=' + autoplay,
 'displayheight=' + (h - (controls?20:0)),
 'showicons=' + showicons,
 'backcolor=0x000000&amp;frontcolor=0xCCCCCC&amp;lightcolor=0x557722'
 ];
 markup.type = 'application/x-shockwave-flash';
 markup.data = options.assetURL + options.flvPlayer;
 markup.children = [
 { tag: 'param', name: 'movie', value: options.assetURL + options.flvPlayer },
 { tag: 'param', name: 'flashvars', value: flashvars.join('&amp;') },
 { tag: 'param', name: 'allowfullscreen', value: 'true' }
 ];
 break;
 case 'qt':
 autoplay = autoplay ? 'true' : 'false';
 if(controls){
 controls = 'true';
 h += 16; // height of QuickTime controller
 }else{
 controls = 'false';
 }
 markup.children = [
 { tag: 'param', name: 'src', value: obj.content },
 { tag: 'param', name: 'scale', value: 'aspect' },
 { tag: 'param', name: 'controller', value: controls },
 { tag: 'param', name: 'autoplay', value: autoplay }
 ];
 if(isIE){
 markup.classid = 'clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B';
 markup.codebase = 'http://www.apple.com/qtactivex/qtplugin.cab#version=6,0,2,0';
 }else{
 markup.type = 'video/quicktime';
 markup.data = obj.content;
 }
 break;
 case 'wmp':
 autoplay = autoplay ? 1 : 0;
 markup.children = [
 { tag: 'param', name: 'autostart', value: autoplay }
 ];
 if(isIE){
 if(controls){
 controls = 'full';
 h += 70; // height of WMP controller in IE
 }else{
 controls = 'none';
 }
 // markup.type = 'application/x-oleobject';
 markup.classid = 'clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6';
 markup.children[markup.children.length] = { tag: 'param', name: 'url', value: obj.content };
 markup.children[markup.children.length] = { tag: 'param', name: 'uimode', value: controls };
 }else{
 if(controls){
 controls = 1;
 h += 45; // height of WMP controller in non-IE
 }else{
 controls = 0;
 }
 markup.type = 'video/x-ms-wmv';
 markup.data = obj.content;
 markup.children[markup.children.length] = { tag: 'param', name: 'showcontrols', value: controls };
 }
 break;
 }

 markup.height = h; // new height includes controller
 markup.width = w;

 return markup;
 };

 /**
 * Creates an HTML string from an object representing HTML elements. Based
 * on Ext.DomHelper's createHtml.
 *
 * @param {Object} obj The HTML definition object
 * @return {String} An HTML string
 * @public
 * @static
 */
 Shadowbox.createHTML = function(obj){
 var html = '<' + obj.tag;
 for(var attr in obj){
 if(attr == 'tag' || attr == 'html' || attr == 'children') continue;
 if(attr == 'cls'){
 html += ' class="' + obj['cls'] + '"';
 }else{
 html += ' ' + attr + '="' + obj[attr] + '"';
 }
 }
 if(RE.empty.test(obj.tag)){
 html += '/>\n';
 }else{
 html += '>\n';
 var cn = obj.children;
 if(cn){
 for(var i = 0, len = cn.length; i < len; ++i){
 html += this.createHTML(cn[i]);
 }
 }
 if(obj.html) html += obj.html;
 html += '</' + obj.tag + '>\n';
 }
 return html;
 };

 /**
 * Gets an object that lists which plugins are supported by the client. The
 * keys of this object will be:
 *
 * - fla: Adobe Flash Player
 * - qt: QuickTime Player
 * - wmp: Windows Media Player
 * - f4m: Flip4Mac QuickTime Player
 *
 * @return {Object} The plugins object
 * @public
 * @static
 */
 Shadowbox.getPlugins = function(){
 return plugins;
 };

 /**
 * Gets the current options object in use.
 *
 * @return {Object} The options object
 * @public
 * @static
 */
 Shadowbox.getOptions = function(){
 return options;
 };

 /**
 * Gets the current gallery object.
 *
 * @return {Object} The current gallery item
 * @public
 * @static
 */
 Shadowbox.getCurrent = function(){
 return current_gallery[current];
 };

 /**
 * Gets the current version number of Shadowbox.
 *
 * @return {String} The current version
 * @public
 * @static
 */
 Shadowbox.getVersion = function(){
 return version;
 };

})();

/**
 * Finds the index of the given object in this array.
 *
 * @param {mixed} o The object to search for
 * @return {Number} The index of the given object
 * @public
 */
Array.prototype.indexOf = Array.prototype.indexOf || function(o){
 for(var i = 0, len = this.length; i < len; ++i){
 if(this[i] == o) return i;
 }
 return -1;
};

/**
 * Formats a string with the given parameters. The string for format must have
 * placeholders that correspond to the numerical index of the arguments passed
 * in surrounded by curly braces (e.g. 'Some {0} string {1}').
 *
 * @param {String} format The string to format
 * @param ... The parameters to put inside the string
 * @return {String} The string with the specified parameters
 * replaced
 * @public
 * @static
 */
String.format = String.format || function(format){
 var args = Array.prototype.slice.call(arguments, 1);
 return format.replace(/\{(\d+)\}/g, function(m, i){
 return args[i];
 });
};

/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license http://opensource.org/licenses/afl-3.0.php Academic Free License (AFL 3.0)
 */
if(typeof Product=='undefined') {
 var Product = {};
}

/********************* IMAGE ZOOMER ***********************/

Product.Zoom = Class.create();
/**
 * Image zoom control
 *
 * @author Magento Core Team <core@magentocommerce.com>
 */
Product.Zoom.prototype = {
 initialize: function(imageEl, trackEl, handleEl, zoomInEl, zoomOutEl, hintEl){
 this.containerEl = $(imageEl).parentNode;
 this.imageEl = $(imageEl);
 this.handleEl = $(handleEl);
 this.trackEl = $(trackEl);
 this.hintEl = $(hintEl);

 this.containerDim = Element.getDimensions(this.containerEl);
 this.imageDim = Element.getDimensions(this.imageEl);

 this.imageDim.ratio = this.imageDim.width/this.imageDim.height;

 this.floorZoom = 1;

 if (this.imageDim.width > this.imageDim.height) {
 this.ceilingZoom = this.imageDim.width / this.containerDim.width;
 } else {
 this.ceilingZoom = this.imageDim.height / this.containerDim.height;
 }

 if (this.imageDim.width <= this.containerDim.width
 && this.imageDim.height <= this.containerDim.height) {
 this.trackEl.up().hide();
 this.hintEl.hide();
 this.containerEl.removeClassName('product-image-zoom');
 return;
 }

 this.imageX = 0;
 this.imageY = 0;
 this.imageZoom = 1;

 this.sliderSpeed = 0;
 this.sliderAccel = 0;
 this.zoomBtnPressed = false;

 this.showFull = false;

 this.selects = document.getElementsByTagName('select');

 this.draggable = new Draggable(imageEl, {
 starteffect:false,
 reverteffect:false,
 endeffect:false,
 snap:this.contain.bind(this)
 });

 this.slider = new Control.Slider(handleEl, trackEl, {
 axis:'horizontal',
 minimum:0,
 maximum:Element.getDimensions(this.trackEl).width,
 alignX:0,
 increment:1,
 sliderValue:0,
 onSlide:this.scale.bind(this),
 onChange:this.scale.bind(this)
 });

 this.scale(0);

 Event.observe(this.imageEl, 'dblclick', this.toggleFull.bind(this));

 Event.observe($(zoomInEl), 'mousedown', this.startZoomIn.bind(this));
 Event.observe($(zoomInEl), 'mouseup', this.stopZooming.bind(this));
 Event.observe($(zoomInEl), 'mouseout', this.stopZooming.bind(this));

 Event.observe($(zoomOutEl), 'mousedown', this.startZoomOut.bind(this));
 Event.observe($(zoomOutEl), 'mouseup', this.stopZooming.bind(this));
 Event.observe($(zoomOutEl), 'mouseout', this.stopZooming.bind(this));
 },

 toggleFull: function () {
 this.showFull = !this.showFull;
 //TODO: hide selects for IE only

 for (i=0; i<this.selects.length; i++) {
 this.selects[i].style.visibility = this.showFull ? 'hidden' : 'visible';
 }
 val_scale = !this.showFull ? this.slider.value : 1;
 this.scale(val_scale);

 this.trackEl.style.visibility = this.showFull ? 'hidden' : 'visible';
 this.containerEl.style.overflow = this.showFull ? 'visible' : 'hidden';
 this.containerEl.style.zIndex = this.showFull ? '1000' : '9';

 return this;
 },

 scale: function (v) {

 var centerX = (this.containerDim.width*(1-this.imageZoom)/2-this.imageX)/this.imageZoom;
 var centerY = (this.containerDim.height*(1-this.imageZoom)/2-this.imageY)/this.imageZoom;

 this.imageZoom = this.floorZoom+(v*(this.ceilingZoom-this.floorZoom));

 this.imageEl.style.width = (this.imageZoom*this.containerDim.width)+'px';
 if(this.containerDim.ratio){
 this.imageEl.style.height = (this.imageZoom*this.containerDim.width*this.containerDim.ratio)+'px'; // for safari
 }

 this.imageX = this.containerDim.width*(1-this.imageZoom)/2-centerX*this.imageZoom;
 this.imageY = this.containerDim.height*(1-this.imageZoom)/2-centerY*this.imageZoom;

 this.contain(this.imageX, this.imageY, this.draggable);

 return true;
 },

 startZoomIn: function()
 {
 this.zoomBtnPressed = true;
 this.sliderAccel = .002;
 this.periodicalZoom();
 this.zoomer = new PeriodicalExecuter(this.periodicalZoom.bind(this), .05);
 return this;
 },

 startZoomOut: function()
 {
 this.zoomBtnPressed = true;
 this.sliderAccel = -.002;
 this.periodicalZoom();
 this.zoomer = new PeriodicalExecuter(this.periodicalZoom.bind(this), .05);
 return this;
 },

 stopZooming: function()
 {
 if (!this.zoomer || this.sliderSpeed==0) {
 return;
 }
 this.zoomBtnPressed = false;
 this.sliderAccel = 0;
 },

 periodicalZoom: function()
 {
 if (!this.zoomer) {
 return this;
 }

 if (this.zoomBtnPressed) {
 this.sliderSpeed += this.sliderAccel;
 } else {
 this.sliderSpeed /= 1.5;
 if (Math.abs(this.sliderSpeed)<.001) {
 this.sliderSpeed = 0;
 this.zoomer.stop();
 this.zoomer = null;
 }
 }
 this.slider.value += this.sliderSpeed;

 this.slider.setValue(this.slider.value);
 this.scale(this.slider.value);

 return this;
 },

 contain: function (x,y,draggable) {

 var dim = Element.getDimensions(draggable.element);

 var xMin = 0, xMax = this.containerDim.width-dim.width;
 var yMin = 0, yMax = this.containerDim.height-dim.height;

 x = x>xMin ? xMin : x;
 x = x<xMax ? xMax : x;
 y = y>yMin ? yMin : y;
 y = y<yMax ? yMax : y;

 this.imageX = x;
 this.imageY = y;

 this.imageEl.style.left = this.imageX+'px';
 this.imageEl.style.top = this.imageY+'px';

 return [x,y];
 }
}

/**************************** CONFIGURABLE PRODUCT **************************/
Product.Config = Class.create();
Product.Config.prototype = {
 initialize: function(config){
 this.config = config;
 this.taxConfig = this.config.taxConfig;
 this.settings = $$('.super-attribute-select');
 this.state = new Hash();
 this.priceTemplate = new Template(this.config.template);
 this.prices = config.prices;

 this.settings.each(function(element){
 Event.observe(element, 'change', this.configure.bind(this))
 }.bind(this));

 // fill state
 this.settings.each(function(element){
 var attributeId = element.id.replace(/[a-z]*/, '');
 if(attributeId && this.config.attributes[attributeId]) {
 element.config = this.config.attributes[attributeId];
 element.attributeId = attributeId;
 this.state[attributeId] = false;
 }
 }.bind(this))

 // Init settings dropdown
 var childSettings = [];
 for(var i=this.settings.length-1;i>=0;i--){
 var prevSetting = this.settings[i-1] ? this.settings[i-1] : false;
 var nextSetting = this.settings[i+1] ? this.settings[i+1] : false;
 if(i==0){
 this.fillSelect(this.settings[i])
 }
 else {
 this.settings[i].disabled=true;
 }
 $(this.settings[i]).childSettings = childSettings.clone();
 $(this.settings[i]).prevSetting = prevSetting;
 $(this.settings[i]).nextSetting = nextSetting;
 childSettings.push(this.settings[i]);
 }

 // try retireve options from url
 var separatorIndex = window.location.href.indexOf('#');
 if (separatorIndex!=-1) {
 var paramsStr = window.location.href.substr(separatorIndex+1);
 this.values = paramsStr.toQueryParams();
 this.settings.each(function(element){
 var attributeId = element.attributeId;
 element.value = this.values[attributeId];
 this.configureElement(element);
 }.bind(this));
 }
 },

 configure: function(event){
 var element = Event.element(event);
 this.configureElement(element);
 },

 configureElement : function(element) {
 this.reloadOptionLabels(element);
 if(element.value){
 this.state[element.config.id] = element.value;
 if(element.nextSetting){
 element.nextSetting.disabled = false;
 this.fillSelect(element.nextSetting);
 this.resetChildren(element.nextSetting);
 }
 }
 else {
 this.resetChildren(element);
 }
 this.reloadPrice();
// Calculator.updatePrice();
 },

 reloadOptionLabels: function(element){
 var selectedPrice;
 if(element.options[element.selectedIndex].config){
 selectedPrice = parseFloat(element.options[element.selectedIndex].config.price)
 }
 else{
 selectedPrice = 0;
 }
 for(var i=0;i<element.options.length;i++){
 if(element.options[i].config){
 element.options[i].text = this.getOptionLabel(element.options[i].config, element.options[i].config.price-selectedPrice);
 }
 }
 },

 resetChildren : function(element){
 if(element.childSettings) {
 for(var i=0;i<element.childSettings.length;i++){
 element.childSettings[i].selectedIndex = 0;
 element.childSettings[i].disabled = true;
 if(element.config){
 this.state[element.config.id] = false;
 }
 }
 }
 },

 fillSelect: function(element){
 var attributeId = element.id.replace(/[a-z]*/, '');
 var options = this.getAttributeOptions(attributeId);
 this.clearSelect(element);
 element.options[0] = new Option(this.config.chooseText, '');

 var prevConfig = false;
 if(element.prevSetting){
 prevConfig = element.prevSetting.options[element.prevSetting.selectedIndex];
 }

 if(options) {
 var index = 1;
 for(var i=0;i<options.length;i++){
 var allowedProducts = [];
 if(prevConfig) {
 for(var j=0;j<options[i].products.length;j++){
 if(prevConfig.config.allowedProducts
 && prevConfig.config.allowedProducts.indexOf(options[i].products[j])>-1){
 allowedProducts.push(options[i].products[j]);
 }
 }
 } else {
 allowedProducts = options[i].products.clone();
 }

 if(allowedProducts.size()>0){
 options[i].allowedProducts = allowedProducts;
 element.options[index] = new Option(this.getOptionLabel(options[i], options[i].price), options[i].id);
 element.options[index].config = options[i];
 index++;
 }
 }
 }
 },

 getOptionLabel: function(option, price){
 var price = parseFloat(price);
 if (this.taxConfig.includeTax) {
 var tax = price / (100 + this.taxConfig.defaultTax) * this.taxConfig.defaultTax;
 var excl = price - tax;
 var incl = excl*(1+(this.taxConfig.currentTax/100));
 } else {
 var tax = price * (this.taxConfig.currentTax / 100);
 var excl = price;
 var incl = excl + tax;
 }

 if (this.taxConfig.showIncludeTax || this.taxConfig.showBothPrices) {
 price = incl;
 } else {
 price = excl;
 }

 var str = option.label;
 if(price){
 if (this.taxConfig.showBothPrices) {
 str+= ' ' + this.formatPrice(excl, true) + ' (' + this.formatPrice(price, true) + ' ' + this.taxConfig.inclTaxTitle + ')';
 } else {
 str+= ' ' + this.formatPrice(price, true);
 }
 }
 return str;
 },

 formatPrice: function(price, showSign){
 var str = '';
 price = parseFloat(price);
 if(showSign){
 if(price<0){
 str+= '-';
 price = -price;
 }
 else{
 str+= '+';
 }
 }

 var roundedPrice = (Math.round(price*100)/100).toString();

 if (this.prices && this.prices[roundedPrice]) {
 str+= this.prices[roundedPrice];
 }
 else {
 str+= this.priceTemplate.evaluate({price:price.toFixed(2)});
 }
 return str;
 },

 clearSelect: function(element){
 for(var i=element.options.length-1;i>=0;i--){
 element.remove(i);
 }
 },

 getAttributeOptions: function(attributeId){
 if(this.config.attributes[attributeId]){
 return this.config.attributes[attributeId].options;
 }
 },

 reloadPrice: function(){
 var price = 0;
 for(var i=this.settings.length-1;i>=0;i--){
 var selected = this.settings[i].options[this.settings[i].selectedIndex];
 if(selected.config){
 price += parseFloat(selected.config.price);
 }
 }

 optionsPrice.changePrice('config', price);
 optionsPrice.reload();

 return price;

 if($('product-price-'+this.config.productId)){
 $('product-price-'+this.config.productId).innerHTML = price;
 }
 this.reloadOldPrice();
 },

 reloadOldPrice: function(){
 if ($('old-price-'+this.config.productId)) {

 var price = parseFloat(this.config.oldPrice);
 for(var i=this.settings.length-1;i>=0;i--){
 var selected = this.settings[i].options[this.settings[i].selectedIndex];
 if(selected.config){
 price+= parseFloat(selected.config.price);
 }
 }
 if (price < 0)
 price = 0;
 price = this.formatPrice(price);

 if($('old-price-'+this.config.productId)){
 $('old-price-'+this.config.productId).innerHTML = price;
 }

 }
 }
}


/**************************** SUPER PRODUCTS ********************************/

Product.Super = {};
Product.Super.Configurable = Class.create();

Product.Super.Configurable.prototype = {
 initialize: function(container, observeCss, updateUrl, updatePriceUrl, priceContainerId) {
 this.container = $(container);
 this.observeCss = observeCss;
 this.updateUrl = updateUrl;
 this.updatePriceUrl = updatePriceUrl;
 this.priceContainerId = priceContainerId;
 this.registerObservers();
 },
 registerObservers: function() {
 var elements = this.container.getElementsByClassName(this.observeCss);
 elements.each(function(element){
 Event.observe(element, 'change', this.update.bindAsEventListener(this));
 }.bind(this));
 return this;
 },
 update: function(event) {
 var elements = this.container.getElementsByClassName(this.observeCss);
 var parameters = Form.serializeElements(elements, true);

 new Ajax.Updater(this.container, this.updateUrl + '?ajax=1', {
 parameters:parameters,
 onComplete:this.registerObservers.bind(this)
 });
 var priceContainer = $(this.priceContainerId);
 if(priceContainer) {
 new Ajax.Updater(priceContainer, this.updatePriceUrl + '?ajax=1', {
 parameters:parameters
 });
 }
 }
}

/**************************** PRICE RELOADER ********************************/
Product.OptionsPrice = Class.create();
Product.OptionsPrice.prototype = {
 initialize: function(config) {
 this.productId = config.productId;
 this.priceFormat = config.priceFormat;
 this.includeTax = config.includeTax;
 this.defaultTax = config.defaultTax;
 this.currentTax = config.currentTax;
 this.productPrice = config.productPrice;
 this.showIncludeTax = config.showIncludeTax;
 this.showBothPrices = config.showBothPrices;
 this.productPrice = config.productPrice;
 this.productOldPrice = config.productOldPrice;
 this.skipCalculate = config.skipCalculate;
 this.duplicateIdSuffix = config.idSuffix;

 this.oldPlusDisposition = config.oldPlusDisposition;
 this.plusDisposition = config.plusDisposition;

 this.oldMinusDisposition = config.oldMinusDisposition;
 this.minusDisposition = config.minusDisposition;

 this.optionPrices = {};
 this.containers = {};

 this.displayZeroPrice = true;

 this.initPrices();
 },

 setDuplicateIdSuffix: function(idSuffix) {
 this.duplicateIdSuffix = idSuffix;
 },

 initPrices: function() {
 this.containers[0] = 'product-price-' + this.productId;
 this.containers[1] = 'bundle-price-' + this.productId;
 this.containers[2] = 'price-including-tax-' + this.productId;
 this.containers[3] = 'price-excluding-tax-' + this.productId;
 this.containers[4] = 'old-price-' + this.productId;
 },

 changePrice: function(key, price) {
 this.optionPrices[key] = parseFloat(price);
 },

 getOptionPrices: function() {
 var result = 0;
 var nonTaxable = 0;
 $H(this.optionPrices).each(function(pair) {
 if (pair.key == 'nontaxable') {
 nonTaxable = pair.value;
 } else {
 result += pair.value;
 }
 });
 var r = new Array(result, nonTaxable);
 return r;
 },

 reload: function() {
 var price;
 var formattedPrice;
 var optionPrices = this.getOptionPrices();
 var nonTaxable = optionPrices[1];
 optionPrices = optionPrices[0];
 $H(this.containers).each(function(pair) {
 var _productPrice;
 var _plusDisposition;
 var _minusDisposition;
 if ($(pair.value)) {
 if (pair.value == 'old-price-'+this.productId && this.productOldPrice != this.productPrice) {
 _productPrice = this.productOldPrice;
 _plusDisposition = this.oldPlusDisposition;
 _minusDisposition = this.oldMinusDisposition;
 } else {
 _productPrice = this.productPrice;
 _plusDisposition = this.plusDisposition;
 _minusDisposition = this.minusDisposition;
 }

 var price = optionPrices+parseFloat(_productPrice)
 if (this.includeTax == 'true') {
 // tax = tax included into product price by admin
 var tax = price / (100 + this.defaultTax) * this.defaultTax;
 var excl = price - tax;
 var incl = excl*(1+(this.currentTax/100));
 } else {
 var tax = price * (this.currentTax / 100);
 var excl = price;
 var incl = excl + tax;
 }

 excl += parseFloat(_plusDisposition);
 incl += parseFloat(_plusDisposition);
 excl -= parseFloat(_minusDisposition);
 incl -= parseFloat(_minusDisposition);

 //adding nontaxlable part of options
 excl += parseFloat(nonTaxable);
 incl += parseFloat(nonTaxable);

 if (pair.value == 'price-including-tax-'+this.productId) {
 price = incl;
 } else if (pair.value == 'old-price-'+this.productId) {
 if (this.showIncludeTax || this.showBothPrices) {
 price = incl;
 } else {
 price = excl;
 }
 } else {
 if (this.showIncludeTax) {
 price = incl;
 } else {
 if (!this.skipCalculate || _productPrice == 0) {
 price = excl;
 } else {
 price = optionPrices+parseFloat(_productPrice);
 }
 }
 }

 if (price < 0) price = 0;

 if (price > 0 || this.displayZeroPrice) {
 formattedPrice = this.formatPrice(price);
 } else {
 formattedPrice = '';
 }

 if ($(pair.value).select('.price')[0]) {
 $(pair.value).select('.price')[0].innerHTML = formattedPrice;
 if ($(pair.value+this.duplicateIdSuffix) && $(pair.value+this.duplicateIdSuffix).select('.price')[0]) {
 $(pair.value+this.duplicateIdSuffix).select('.price')[0].innerHTML = formattedPrice;
 }
 } else {
 $(pair.value).innerHTML = formattedPrice;
 if ($(pair.value+this.duplicateIdSuffix)) {
 $(pair.value+this.duplicateIdSuffix).innerHTML = formattedPrice;
 }
 }
 };
 }.bind(this));
 },
 formatPrice: function(price) {
 return formatCurrency(price, this.priceFormat);
 }
}