/*  Prototype JavaScript framework, version 1.5.1.1
 *  (c) 2005-2007 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: '1.5.1.1',
 
 Browser: {
 IE:     !!(window.attachEvent && !window.opera),
 Opera:  !!window.opera,
 WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
 Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1
 },
 
 BrowserFeatures: {
 XPath: !!document.evaluate,
 ElementExtensions: !!window.HTMLElement,
 SpecificElementExtensions:
 (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 }
 }
 
 var Class = {
 create: function() {
 return function() {
 this.initialize.apply(this, arguments);
 }
 }
 }
 
 var Abstract = new Object();
 
 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 === undefined) return 'undefined';
 if (object === null) return 'null';
 return object.inspect ? object.inspect() : object.toString();
 } 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.ownerDocument === document) return;
 var results = [];
 for (var property in object) {
 var value = Object.toJSON(object[property]);
 if (value !== undefined)
 results.push(property.toJSON() + ': ' + value);
 }
 return '{' + results.join(', ') + '}';
 },
 
 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);
 }
 });
 
 Function.prototype.bind = function() {
 var __method = this, args = $A(arguments), object = args.shift();
 return function() {
 return __method.apply(object, args.concat($A(arguments)));
 }
 }
 
 Function.prototype.bindAsEventListener = function(object) {
 var __method = this, args = $A(arguments), object = args.shift();
 return function(event) {
 return __method.apply(object, [event || window.event].concat(args));
 }
 }
 
 Object.extend(Number.prototype, {
 toColorPart: function() {
 return this.toPaddedString(2, 16);
 },
 
 succ: function() {
 return this + 1;
 },
 
 times: function(iterator) {
 $R(0, this, true).each(iterator);
 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';
 }
 });
 
 Date.prototype.toJSON = function() {
 return '"' + this.getFullYear() + '-' +
 (this.getMonth() + 1).toPaddedString(2) + '-' +
 this.getDate().toPaddedString(2) + 'T' +
 this.getHours().toPaddedString(2) + ':' +
 this.getMinutes().toPaddedString(2) + ':' +
 this.getSeconds().toPaddedString(2) + '"';
 };
 
 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;
 }
 }
 
 /*--------------------------------------------------------------------------*/
 
 var PeriodicalExecuter = Class.create();
 PeriodicalExecuter.prototype = {
 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);
 },
 
 stop: function() {
 if (!this.timer) return;
 clearInterval(this.timer);
 this.timer = null;
 },
 
 onTimerEvent: function() {
 if (!this.currentlyExecuting) {
 try {
 this.currentlyExecuting = true;
 this.callback(this);
 } 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 = count === undefined ? 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 this;
 },
 
 truncate: function(length, truncation) {
 length = length || 30;
 truncation = truncation === undefined ? '...' : truncation;
 return this.length > length ?
 this.slice(0, length - truncation.length) + truncation : 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 = document.createElement('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 (hash[key].constructor != Array) 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) {
 var result = '';
 for (var i = 0; i < count; i++) result += this;
 return result;
 },
 
 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.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);
 }
 });
 
 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.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
 }
 });
 
 String.prototype.gsub.prepareReplacement = function(replacement) {
 if (typeof replacement == 'function') 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('')
 });
 
 with (String.prototype.escapeHTML) div.appendChild(text);
 
 var Template = Class.create();
 Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
 Template.prototype = {
 initialize: function(template, pattern) {
 this.template = template.toString();
 this.pattern  = pattern || Template.Pattern;
 },
 
 evaluate: function(object) {
 return this.template.gsub(this.pattern, function(match) {
 var before = match[1];
 if (before == '\\') return match[2];
 return before + String.interpret(object[match[3]]);
 });
 }
 }
 
 var $break = {}, $continue = new Error('"throw $continue" is deprecated, use "return" instead');
 
 var Enumerable = {
 each: function(iterator) {
 var index = 0;
 try {
 this._each(function(value) {
 iterator(value, index++);
 });
 } catch (e) {
 if (e != $break) throw e;
 }
 return this;
 },
 
 eachSlice: function(number, iterator) {
 var index = -number, slices = [], array = this.toArray();
 while ((index += number) < array.length)
 slices.push(array.slice(index, index+number));
 return slices.map(iterator);
 },
 
 all: function(iterator) {
 var result = true;
 this.each(function(value, index) {
 result = result && !!(iterator || Prototype.K)(value, index);
 if (!result) throw $break;
 });
 return result;
 },
 
 any: function(iterator) {
 var result = false;
 this.each(function(value, index) {
 if (result = !!(iterator || Prototype.K)(value, index))
 throw $break;
 });
 return result;
 },
 
 collect: function(iterator) {
 var results = [];
 this.each(function(value, index) {
 results.push((iterator || Prototype.K)(value, index));
 });
 return results;
 },
 
 detect: function(iterator) {
 var result;
 this.each(function(value, index) {
 if (iterator(value, index)) {
 result = value;
 throw $break;
 }
 });
 return result;
 },
 
 findAll: function(iterator) {
 var results = [];
 this.each(function(value, index) {
 if (iterator(value, index))
 results.push(value);
 });
 return results;
 },
 
 grep: function(pattern, iterator) {
 var results = [];
 this.each(function(value, index) {
 var stringValue = value.toString();
 if (stringValue.match(pattern))
 results.push((iterator || Prototype.K)(value, index));
 })
 return results;
 },
 
 include: function(object) {
 var found = false;
 this.each(function(value) {
 if (value == object) {
 found = true;
 throw $break;
 }
 });
 return found;
 },
 
 inGroupsOf: function(number, fillWith) {
 fillWith = fillWith === undefined ? null : fillWith;
 return this.eachSlice(number, function(slice) {
 while(slice.length < number) slice.push(fillWith);
 return slice;
 });
 },
 
 inject: function(memo, iterator) {
 this.each(function(value, index) {
 memo = iterator(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) {
 var result;
 this.each(function(value, index) {
 value = (iterator || Prototype.K)(value, index);
 if (result == undefined || value >= result)
 result = value;
 });
 return result;
 },
 
 min: function(iterator) {
 var result;
 this.each(function(value, index) {
 value = (iterator || Prototype.K)(value, index);
 if (result == undefined || value < result)
 result = value;
 });
 return result;
 },
 
 partition: function(iterator) {
 var trues = [], falses = [];
 this.each(function(value, index) {
 ((iterator || Prototype.K)(value, index) ?
 trues : falses).push(value);
 });
 return [trues, falses];
 },
 
 pluck: function(property) {
 var results = [];
 this.each(function(value, index) {
 results.push(value[property]);
 });
 return results;
 },
 
 reject: function(iterator) {
 var results = [];
 this.each(function(value, index) {
 if (!iterator(value, index))
 results.push(value);
 });
 return results;
 },
 
 sortBy: function(iterator) {
 return this.map(function(value, index) {
 return {value: value, criteria: iterator(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 (typeof args.last() == 'function')
 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,
 member:  Enumerable.include,
 entries: Enumerable.toArray
 });
 var $A = Array.from = function(iterable) {
 if (!iterable) return [];
 if (iterable.toArray) {
 return iterable.toArray();
 } else {
 var results = [];
 for (var i = 0, length = iterable.length; i < length; i++)
 results.push(iterable[i]);
 return results;
 }
 }
 
 if (Prototype.Browser.WebKit) {
 $A = Array.from = function(iterable) {
 if (!iterable) return [];
 if (!(typeof iterable == 'function' && iterable == '[object NodeList]') &&
 iterable.toArray) {
 return iterable.toArray();
 } else {
 var results = [];
 for (var i = 0, length = iterable.length; i < length; i++)
 results.push(iterable[i]);
 return results;
 }
 }
 }
 
 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(value && value.constructor == Array ?
 value.flatten() : [value]);
 });
 },
 
 without: function() {
 var values = $A(arguments);
 return this.select(function(value) {
 return !values.include(value);
 });
 },
 
 indexOf: function(object) {
 for (var i = 0, length = this.length; i < length; i++)
 if (this[i] == object) return i;
 return -1;
 },
 
 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;
 });
 },
 
 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 (value !== undefined) results.push(value);
 });
 return '[' + results.join(', ') + ']';
 }
 });
 
 Array.prototype.toArray = Array.prototype.clone;
 
 function $w(string) {
 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 (arguments[i].constructor == Array) {
 for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
 array.push(arguments[i][j]);
 } else {
 array.push(arguments[i]);
 }
 }
 return array;
 }
 }
 var Hash = function(object) {
 if (object instanceof Hash) this.merge(object);
 else Object.extend(this, object || {});
 };
 
 Object.extend(Hash, {
 toQueryString: function(obj) {
 var parts = [];
 parts.add = arguments.callee.addPair;
 
 this.prototype._each.call(obj, function(pair) {
 if (!pair.key) return;
 var value = pair.value;
 
 if (value && typeof value == 'object') {
 if (value.constructor == Array) value.each(function(value) {
 parts.add(pair.key, value);
 });
 return;
 }
 parts.add(pair.key, value);
 });
 
 return parts.join('&');
 },
 
 toJSON: function(object) {
 var results = [];
 this.prototype._each.call(object, function(pair) {
 var value = Object.toJSON(pair.value);
 if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value);
 });
 return '{' + results.join(', ') + '}';
 }
 });
 
 Hash.toQueryString.addPair = function(key, value, prefix) {
 key = encodeURIComponent(key);
 if (value === undefined) this.push(key);
 else this.push(key + '=' + (value == null ? '' : encodeURIComponent(value)));
 }
 
 Object.extend(Hash.prototype, Enumerable);
 Object.extend(Hash.prototype, {
 _each: function(iterator) {
 for (var key in this) {
 var value = this[key];
 if (value && value == Hash.prototype[key]) continue;
 
 var pair = [key, value];
 pair.key = key;
 pair.value = value;
 iterator(pair);
 }
 },
 
 keys: function() {
 return this.pluck('key');
 },
 
 values: function() {
 return this.pluck('value');
 },
 
 merge: function(hash) {
 return $H(hash).inject(this, function(mergedHash, pair) {
 mergedHash[pair.key] = pair.value;
 return mergedHash;
 });
 },
 
 remove: function() {
 var result;
 for(var i = 0, length = arguments.length; i < length; i++) {
 var value = this[arguments[i]];
 if (value !== undefined){
 if (result === undefined) result = value;
 else {
 if (result.constructor != Array) result = [result];
 result.push(value)
 }
 }
 delete this[arguments[i]];
 }
 return result;
 },
 
 toQueryString: function() {
 return Hash.toQueryString(this);
 },
 
 inspect: function() {
 return '#<Hash:{' + this.map(function(pair) {
 return pair.map(Object.inspect).join(': ');
 }).join(', ') + '}>';
 },
 
 toJSON: function() {
 return Hash.toJSON(this);
 }
 });
 
 function $H(object) {
 if (object instanceof Hash) return object;
 return new Hash(object);
 };
 
 // Safari iterates over shadowed properties
 if (function() {
 var i = 0, Test = function(value) { this.key = value };
 Test.prototype.key = 'foo';
 for (var property in new Test('bar')) i++;
 return i > 1;
 }()) Hash.prototype._each = function(iterator) {
 var cache = [];
 for (var key in this) {
 var value = this[key];
 if ((value && value == Hash.prototype[key]) || cache.include(key)) continue;
 cache.push(key);
 var pair = [key, value];
 pair.key = key;
 pair.value = value;
 iterator(pair);
 }
 };
 ObjectRange = Class.create();
 Object.extend(ObjectRange.prototype, Enumerable);
 Object.extend(ObjectRange.prototype, {
 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 (typeof responder[callback] == 'function') {
 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 = function() {};
 Ajax.Base.prototype = {
 setOptions: function(options) {
 this.options = {
 method:       'post',
 asynchronous: true,
 contentType:  'application/x-www-form-urlencoded',
 encoding:     'UTF-8',
 parameters:   ''
 }
 Object.extend(this.options, options || {});
 
 this.options.method = this.options.method.toLowerCase();
 if (typeof this.options.parameters == 'string')
 this.options.parameters = this.options.parameters.toQueryParams();
 }
 }
 
 Ajax.Request = Class.create();
 Ajax.Request.Events =
 ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
 
 Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
 _complete: false,
 
 initialize: function(url, options) {
 this.transport = Ajax.getTransport();
 this.setOptions(options);
 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 = Hash.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 {
 if (this.options.onCreate) this.options.onCreate(this.transport);
 Ajax.Responders.dispatch('onCreate', this, this.transport);
 
 this.transport.open(this.method.toUpperCase(), this.url,
 this.options.asynchronous);
 
 if (this.options.asynchronous)
 setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);
 
 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 (typeof extras.push == 'function')
 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() {
 return !this.transport.status
 || (this.transport.status >= 200 && this.transport.status < 300);
 },
 
 respondToReadyState: function(readyState) {
 var state = Ajax.Request.Events[readyState];
 var transport = this.transport, json = this.evalJSON();
 
 if (state == 'Complete') {
 try {
 this._complete = true;
 (this.options['on' + this.transport.status]
 || this.options['on' + (this.success() ? 'Success' : 'Failure')]
 || Prototype.emptyFunction)(transport, json);
 } catch (e) {
 this.dispatchException(e);
 }
 
 var contentType = this.getHeader('Content-type');
 if (contentType && contentType.strip().
 match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))
 this.evalResponse();
 }
 
 try {
 (this.options['on' + state] || Prototype.emptyFunction)(transport, json);
 Ajax.Responders.dispatch('on' + state, this, transport, json);
 } catch (e) {
 this.dispatchException(e);
 }
 
 if (state == 'Complete') {
 // avoid memory leak in MSIE: clean up
 this.transport.onreadystatechange = Prototype.emptyFunction;
 }
 },
 
 getHeader: function(name) {
 try {
 return this.transport.getResponseHeader(name);
 } catch (e) { return null }
 },
 
 evalJSON: function() {
 try {
 var json = this.getHeader('X-JSON');
 return json ? json.evalJSON() : 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.Updater = Class.create();
 
 Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
 initialize: function(container, url, options) {
 this.container = {
 success: (container.success || container),
 failure: (container.failure || (container.success ? null : container))
 }
 
 this.transport = Ajax.getTransport();
 this.setOptions(options);
 
 var onComplete = this.options.onComplete || Prototype.emptyFunction;
 this.options.onComplete = (function(transport, param) {
 this.updateContent();
 onComplete(transport, param);
 }).bind(this);
 
 this.request(url);
 },
 
 updateContent: function() {
 var receiver = this.container[this.success() ? 'success' : 'failure'];
 var response = this.transport.responseText;
 
 if (!this.options.evalScripts) response = response.stripScripts();
 
 if (receiver = $(receiver)) {
 if (this.options.insertion)
 new this.options.insertion(receiver, response);
 else
 receiver.update(response);
 }
 
 if (this.success()) {
 if (this.onComplete)
 setTimeout(this.onComplete.bind(this), 10);
 }
 }
 });
 
 Ajax.PeriodicalUpdater = Class.create();
 Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
 initialize: function(container, url, options) {
 this.setOptions(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(request) {
 if (this.options.decay) {
 this.decay = (request.responseText == this.lastText ?
 this.decay * this.options.decay : 1);
 
 this.lastText = request.responseText;
 }
 this.timer = setTimeout(this.onTimerEvent.bind(this),
 this.decay * this.frequency * 1000);
 },
 
 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 (typeof element == 'string')
 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(query.snapshotItem(i));
 return results;
 };
 
 document.getElementsByClassName = function(className, parentElement) {
 var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";
 return document._getElementsByXPath(q, parentElement);
 }
 
 } else document.getElementsByClassName = function(className, parentElement) {
 var children = ($(parentElement) || document.body).getElementsByTagName('*');
 var elements = [], child, pattern = new RegExp("(^|\\s)" + className + "(\\s|$)");
 for (var i = 0, length = children.length; i < length; i++) {
 child = children[i];
 var elementClassName = child.className;
 if (elementClassName.length == 0) continue;
 if (elementClassName == className || elementClassName.match(pattern))
 elements.push(Element.extend(child));
 }
 return elements;
 };
 
 /*--------------------------------------------------------------------------*/
 
 if (!window.Element) var Element = {};
 
 Element.extend = function(element) {
 var F = Prototype.BrowserFeatures;
 if (!element || !element.tagName || element.nodeType == 3 ||
 element._extended || F.SpecificElementExtensions || element == window)
 return element;
 
 var methods = {}, tagName = element.tagName, cache = Element.extend.cache,
 T = Element.Methods.ByTag;
 
 // extend methods for all tags (Safari doesn't need this)
 if (!F.ElementExtensions) {
 Object.extend(methods, Element.Methods),
 Object.extend(methods, Element.Methods.Simulated);
 }
 
 // extend methods for specific tags
 if (T[tagName]) Object.extend(methods, T[tagName]);
 
 for (var property in methods) {
 var value = methods[property];
 if (typeof value == 'function' && !(property in element))
 element[property] = cache.findOrStore(value);
 }
 
 element._extended = Prototype.emptyFunction;
 return element;
 };
 
 Element.extend.cache = {
 findOrStore: function(value) {
 return this[value] = this[value] || function() {
 return value.apply(null, [this].concat($A(arguments)));
 }
 }
 };
 
 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).style.display = 'none';
 return element;
 
 },
 
 show: function(element) {
 $(element).style.display = '';
 return element;
 },
 
 remove: function(element) {
 element = $(element);
 element.parentNode.removeChild(element);
 return element;
 },
 
 update: function(element, html) {
 html = typeof html == 'undefined' ? '' : html.toString();
 $(element).innerHTML = html.stripScripts();
 setTimeout(function() {html.evalScripts()}, 10);
 return element;
 },
 
 replace: function(element, html) {
 element = $(element);
 html = typeof html == 'undefined' ? '' : html.toString();
 if (element.outerHTML) {
 element.outerHTML = html.stripScripts();
 } else {
 var range = element.ownerDocument.createRange();
 range.selectNodeContents(element);
 element.parentNode.replaceChild(
 range.createContextualFragment(html.stripScripts()), element);
 }
 setTimeout(function() {html.evalScripts()}, 10);
 return element;
 },
 
 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 $A($(element).getElementsByTagName('*')).each(Element.extend);
 },
 
 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 (typeof selector == 'string')
 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 expression ? Selector.findElement(ancestors, expression, index) :
 ancestors[index || 0];
 },
 
 down: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return element.firstDescendant();
 var descendants = element.descendants();
 return expression ? Selector.findElement(descendants, expression, index) :
 descendants[index || 0];
 },
 
 previous: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
 var previousSiblings = element.previousSiblings();
 return expression ? Selector.findElement(previousSiblings, expression, index) :
 previousSiblings[index || 0];
 },
 
 next: function(element, expression, index) {
 element = $(element);
 if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
 var nextSiblings = element.nextSiblings();
 return expression ? Selector.findElement(nextSiblings, expression, index) :
 nextSiblings[index || 0];
 },
 
 getElementsBySelector: function() {
 var args = $A(arguments), element = $(args.shift());
 return Selector.findChildElements(element, args);
 },
 
 getElementsByClassName: function(element, className) {
 return document.getElementsByClassName(className, element);
 },
 
 readAttribute: function(element, name) {
 element = $(element);
 if (Prototype.Browser.IE) {
 if (!element.attributes) return null;
 var t = Element._attributeTranslations;
 if (t.values[name]) return t.values[name](element, name);
 if (t.names[name])  name = t.names[name];
 var attribute = element.attributes[name];
 return attribute ? attribute.nodeValue : null;
 }
 return element.getAttribute(name);
 },
 
 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 = $(element))) return;
 var elementClassName = element.className;
 if (elementClassName.length == 0) return false;
 if (elementClassName == className ||
 elementClassName.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
 return true;
 return false;
 },
 
 addClassName: function(element, className) {
 if (!(element = $(element))) return;
 Element.classNames(element).add(className);
 return element;
 },
 
 removeClassName: function(element, className) {
 if (!(element = $(element))) return;
 Element.classNames(element).remove(className);
 return element;
 },
 
 toggleClassName: function(element, className) {
 if (!(element = $(element))) return;
 Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className);
 return element;
 },
 
 observe: function() {
 Event.observe.apply(Event, arguments);
 return $A(arguments).first();
 },
 
 stopObserving: function() {
 Event.stopObserving.apply(Event, arguments);
 return $A(arguments).first();
 },
 
 // 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);
 while (element = element.parentNode)
 if (element == ancestor) return true;
 return false;
 },
 
 scrollTo: function(element) {
 element = $(element);
 var pos = Position.cumulativeOffset(element);
 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) {
 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, camelized) {
 element = $(element);
 var elementStyle = element.style;
 
 for (var property in styles)
 if (property == 'opacity') element.setOpacity(styles[property])
 else
 elementStyle[(property == 'float' || property == 'cssFloat') ?
 (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :
 (camelized ? property : property.camelize())] = 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 (window.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.style.overflow || 'auto';
 if ((Element.getStyle(element, 'overflow') || 'visible') != '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;
 }
 };
 
 Object.extend(Element.Methods, {
 childOf: Element.Methods.descendantOf,
 childElements: Element.Methods.immediateDescendants
 });
 
 if (Prototype.Browser.Opera) {
 Element.Methods._getStyle = Element.Methods.getStyle;
 Element.Methods.getStyle = function(element, style) {
 switch(style) {
 case 'left':
 case 'top':
 case 'right':
 case 'bottom':
 if (Element._getStyle(element, 'position') == 'static') return null;
 default: return Element._getStyle(element, style);
 }
 };
 }
 else if (Prototype.Browser.IE) {
 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) {
 element = $(element);
 var filter = element.getStyle('filter'), style = element.style;
 if (value == 1 || value === '') {
 style.filter = filter.replace(/alpha\([^\)]*\)/gi,'');
 return element;
 } else if (value < 0.00001) value = 0;
 style.filter = filter.replace(/alpha\([^\)]*\)/gi, '') +
 'alpha(opacity=' + (value * 100) + ')';
 return element;
 };
 
 // IE is missing .innerHTML support for TABLE-related elements
 Element.Methods.update = function(element, html) {
 element = $(element);
 html = typeof html == 'undefined' ? '' : html.toString();
 var tagName = element.tagName.toUpperCase();
 if (['THEAD','TBODY','TR','TD'].include(tagName)) {
 var div = document.createElement('div');
 switch (tagName) {
 case 'THEAD':
 case 'TBODY':
 div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';
 depth = 2;
 break;
 case 'TR':
 div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';
 depth = 3;
 break;
 case 'TD':
 div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';
 depth = 4;
 }
 $A(element.childNodes).each(function(node) { element.removeChild(node) });
 depth.times(function() { div = div.firstChild });
 $A(div.childNodes).each(function(node) { element.appendChild(node) });
 } else {
 element.innerHTML = html.stripScripts();
 }
 setTimeout(function() { html.evalScripts() }, 10);
 return element;
 }
 }
 else if (Prototype.Browser.Gecko) {
 Element.Methods.setOpacity = function(element, value) {
 element = $(element);
 element.style.opacity = (value == 1) ? 0.999999 :
 (value === '') ? '' : (value < 0.00001) ? 0 : value;
 return element;
 };
 }
 
 Element._attributeTranslations = {
 names: {
 colspan:   "colSpan",
 rowspan:   "rowSpan",
 valign:    "vAlign",
 datetime:  "dateTime",
 accesskey: "accessKey",
 tabindex:  "tabIndex",
 enctype:   "encType",
 maxlength: "maxLength",
 readonly:  "readOnly",
 longdesc:  "longDesc"
 },
 values: {
 _getAttr: function(element, attribute) {
 return element.getAttribute(attribute, 2);
 },
 _flag: function(element, attribute) {
 return $(element).hasAttribute(attribute) ? attribute : null;
 },
 style: function(element) {
 return element.style.cssText.toLowerCase();
 },
 title: function(element) {
 var node = element.getAttributeNode('title');
 return node.specified ? node.nodeValue : null;
 }
 }
 };
 
 (function() {
 Object.extend(this, {
 href: this._getAttr,
 src:  this._getAttr,
 type: this._getAttr,
 disabled: this._flag,
 checked:  this._flag,
 readonly: this._flag,
 multiple: this._flag
 });
 }).call(Element._attributeTranslations.values);
 
 Element.Methods.Simulated = {
 hasAttribute: function(element, attribute) {
 var t = Element._attributeTranslations, node;
 attribute = t.names[attribute] || attribute;
 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.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 (tagName.constructor == Array) 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;
 var cache = Element.extend.cache;
 for (var property in methods) {
 var value = methods[property];
 if (!onlyIfAbsent || !(property in destination))
 destination[property] = cache.findOrStore(value);
 }
 }
 
 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 (typeof klass == "undefined") continue;
 copy(T[tag], klass.prototype);
 }
 }
 
 Object.extend(Element, Element.Methods);
 delete Element.ByTag;
 };
 
 var Toggle = { display: Element.toggle };
 
 /*--------------------------------------------------------------------------*/
 
 Abstract.Insertion = function(adjacency) {
 this.adjacency = adjacency;
 }
 
 Abstract.Insertion.prototype = {
 initialize: function(element, content) {
 this.element = $(element);
 this.content = content.stripScripts();
 
 if (this.adjacency && this.element.insertAdjacentHTML) {
 try {
 this.element.insertAdjacentHTML(this.adjacency, this.content);
 } catch (e) {
 var tagName = this.element.tagName.toUpperCase();
 if (['TBODY', 'TR'].include(tagName)) {
 this.insertContent(this.contentFromAnonymousTable());
 } else {
 throw e;
 }
 }
 } else {
 this.range = this.element.ownerDocument.createRange();
 if (this.initializeRange) this.initializeRange();
 this.insertContent([this.range.createContextualFragment(this.content)]);
 }
 
 setTimeout(function() {content.evalScripts()}, 10);
 },
 
 contentFromAnonymousTable: function() {
 var div = document.createElement('div');
 div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
 return $A(div.childNodes[0].childNodes[0].childNodes);
 }
 }
 
 var Insertion = new Object();
 
 Insertion.Before = Class.create();
 Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
 initializeRange: function() {
 this.range.setStartBefore(this.element);
 },
 
 insertContent: function(fragments) {
 fragments.each((function(fragment) {
 this.element.parentNode.insertBefore(fragment, this.element);
 }).bind(this));
 }
 });
 
 Insertion.Top = Class.create();
 Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
 initializeRange: function() {
 this.range.selectNodeContents(this.element);
 this.range.collapse(true);
 },
 
 insertContent: function(fragments) {
 fragments.reverse(false).each((function(fragment) {
 this.element.insertBefore(fragment, this.element.firstChild);
 }).bind(this));
 }
 });
 
 Insertion.Bottom = Class.create();
 Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
 initializeRange: function() {
 this.range.selectNodeContents(this.element);
 this.range.collapse(this.element);
 },
 
 insertContent: function(fragments) {
 fragments.each((function(fragment) {
 this.element.appendChild(fragment);
 }).bind(this));
 }
 });
 
 Insertion.After = Class.create();
 Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
 initializeRange: function() {
 this.range.setStartAfter(this.element);
 },
 
 insertContent: function(fragments) {
 fragments.each((function(fragment) {
 this.element.parentNode.insertBefore(fragment,
 this.element.nextSibling);
 }).bind(this));
 }
 });
 
 /*--------------------------------------------------------------------------*/
 
 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);
 /* 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();
 
 Selector.prototype = {
 initialize: function(expression) {
 this.expression = expression.strip();
 this.compileMatcher();
 },
 
 compileMatcher: function() {
 // Selectors with namespaced attributes can't use the XPath version
 if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression))
 return this.compileXPathMatcher();
 
 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(typeof c[i] == 'function' ? 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(typeof x[i] == 'function' ? 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;
 if (this.xpath) return document._getElementsByXPath(this.xpath, root);
 return this.matcher(root);
 },
 
 match: function(element) {
 return this.findElements(document).include(element);
 },
 
 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: "[@#{1}]",
 attr: function(m) {
 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 (typeof h === 'function') 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 or translate(text(), ' \t\r\n', '') = '')]",
 'checked':     "[@checked]",
 'disabled':    "[@disabled]",
 'enabled':     "[not(@disabled)]",
 'not': function(m) {
 var e = m[6], p = Selector.patterns,
 x = Selector.xpath, le, m, v;
 
 var exclusion = [];
 while (e && le != e && (/\S/).test(e)) {
 le = e;
 for (var i in p) {
 if (m = e.match(p[i])) {
 v = typeof x[i] == 'function' ? 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 = false;',
 attr: function(m) {
 m[3] = (m[5] || m[6]);
 return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); 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: /^\[([\w]+)\]/,
 attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\]]*?)\4|([^'"][^\]]*?)))?\]/
 },
 
 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) {
 for (var i = 0, node; node = nodes[i]; i++)
 node._counted = true;
 return nodes;
 },
 
 unmark: function(nodes) {
 for (var i = 0, node; node = nodes[i]; i++)
 node._counted = 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._counted = true;
 if (reverse) {
 for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
 node = nodes[i];
 if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
 }
 } else {
 for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
 if (node.nodeType == 1 && (!ofType || node._counted)) 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])._counted) {
 n._counted = true;
 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, children = [], 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) {
 tagName = 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() == tagName) results.push(node);
 return results;
 } else return root.getElementsByTagName(tagName);
 },
 
 id: function(nodes, root, id, combinator) {
 var targetNode = $(id), h = Selector.handlers;
 if (!nodes && root == document) return targetNode ? [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) {
 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) {
 if (!nodes) nodes = root.getElementsByTagName("*");
 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._counted) {
 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 && !node.innerHTML.match(/^\s*$/))) 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._counted) 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) 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.startsWith(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() + '-'); }
 },
 
 matchElements: function(elements, expression) {
 var matches = new Selector(expression).findElements(), h = Selector.handlers;
 h.mark(matches);
 for (var i = 0, results = [], element; element = elements[i]; i++)
 if (element._counted) results.push(element);
 h.unmark(matches);
 return results;
 },
 
 findElement: function(elements, expression, index) {
 if (typeof expression == 'number') {
 index = expression; expression = false;
 }
 return Selector.matchElements(elements, expression || '*')[index || 0];
 },
 
 findChildElements: function(element, expressions) {
 var exprs = expressions.join(','), expressions = [];
 exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
 expressions.push(m[1].strip());
 });
 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;
 }
 });
 
 function $$() {
 return Selector.findChildElements(document, $A(arguments));
 }
 var Form = {
 reset: function(form) {
 $(form).reset();
 return form;
 },
 
 serializeElements: function(elements, getHash) {
 var data = elements.inject({}, function(result, element) {
 if (!element.disabled && element.name) {
 var key = element.name, value = $(element).getValue();
 if (value != null) {
 if (key in result) {
 if (result[key].constructor != Array) result[key] = [result[key]];
 result[key].push(value);
 }
 else result[key] = value;
 }
 }
 return result;
 });
 
 return getHash ? data : Hash.toQueryString(data);
 }
 };
 
 Form.Methods = {
 serialize: function(form, getHash) {
 return Form.serializeElements(Form.getElements(form), getHash);
 },
 
 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) {
 return $(form).getElements().find(function(element) {
 return element.type != 'hidden' && !element.disabled &&
 ['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;
 options.parameters = form.serialize(true);
 
 if (params) {
 if (typeof params == 'string') params = params.toQueryParams();
 Object.extend(options.parameters, params);
 }
 
 if (form.hasAttribute('method') && !options.method)
 options.method = form.method;
 
 return new Ajax.Request(form.readAttribute('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 Hash.toQueryString(pair);
 }
 }
 return '';
 },
 
 getValue: function(element) {
 element = $(element);
 var method = element.tagName.toLowerCase();
 return Form.Element.Serializers[method](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.blur();
 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) {
 switch (element.type.toLowerCase()) {
 case 'checkbox':
 case 'radio':
 return Form.Element.Serializers.inputSelector(element);
 default:
 return Form.Element.Serializers.textarea(element);
 }
 },
 
 inputSelector: function(element) {
 return element.checked ? element.value : null;
 },
 
 textarea: function(element) {
 return element.value;
 },
 
 select: function(element) {
 return this[element.type == 'select-one' ?
 'selectOne' : 'selectMany'](element);
 },
 
 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 = function() {}
 Abstract.TimedObserver.prototype = {
 initialize: function(element, frequency, callback) {
 this.frequency = frequency;
 this.element   = $(element);
 this.callback  = callback;
 
 this.lastValue = this.getValue();
 this.registerCallback();
 },
 
 registerCallback: function() {
 setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
 },
 
 onTimerEvent: function() {
 var value = this.getValue();
 var changed = ('string' == typeof this.lastValue && 'string' == typeof value
 ? this.lastValue != value : String(this.lastValue) != String(value));
 if (changed) {
 this.callback(this.element, value);
 this.lastValue = value;
 }
 }
 }
 
 Form.Element.Observer = Class.create();
 Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
 getValue: function() {
 return Form.Element.getValue(this.element);
 }
 });
 
 Form.Observer = Class.create();
 Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
 getValue: function() {
 return Form.serialize(this.element);
 }
 });
 
 /*--------------------------------------------------------------------------*/
 
 Abstract.EventObserver = function() {}
 Abstract.EventObserver.prototype = {
 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.bind(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();
 Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
 getValue: function() {
 return Form.Element.getValue(this.element);
 }
 });
 
 Form.EventObserver = Class.create();
 Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
 getValue: function() {
 return Form.serialize(this.element);
 }
 });
 if (!window.Event) {
 var Event = new Object();
 }
 
 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,
 
 element: function(event) {
 return $(event.target || event.srcElement);
 },
 
 isLeftClick: function(event) {
 return (((event.which) && (event.which == 1)) ||
 ((event.button) && (event.button == 1)));
 },
 
 pointerX: function(event) {
 return event.pageX || (event.clientX +
 (document.documentElement.scrollLeft || document.body.scrollLeft));
 },
 
 pointerY: function(event) {
 return event.pageY || (event.clientY +
 (document.documentElement.scrollTop || document.body.scrollTop));
 },
 
 stop: function(event) {
 if (event.preventDefault) {
 event.preventDefault();
 event.stopPropagation();
 } else {
 event.returnValue = false;
 event.cancelBubble = true;
 }
 },
 
 // find the first node with the given tagName, starting from the
 // node the event was triggered on; traverses the DOM upwards
 findElement: function(event, tagName) {
 var element = Event.element(event);
 while (element.parentNode && (!element.tagName ||
 (element.tagName.toUpperCase() != tagName.toUpperCase())))
 element = element.parentNode;
 return element;
 },
 
 observers: false,
 
 _observeAndCache: function(element, name, observer, useCapture) {
 if (!this.observers) this.observers = [];
 if (element.addEventListener) {
 this.observers.push([element, name, observer, useCapture]);
 element.addEventListener(name, observer, useCapture);
 } else if (element.attachEvent) {
 this.observers.push([element, name, observer, useCapture]);
 element.attachEvent('on' + name, observer);
 }
 },
 
 unloadCache: function() {
 if (!Event.observers) return;
 for (var i = 0, length = Event.observers.length; i < length; i++) {
 Event.stopObserving.apply(this, Event.observers[i]);
 Event.observers[i][0] = null;
 }
 Event.observers = false;
 },
 
 observe: function(element, name, observer, useCapture) {
 element = $(element);
 useCapture = useCapture || false;
 
 if (name == 'keypress' &&
 (Prototype.Browser.WebKit || element.attachEvent))
 name = 'keydown';
 
 Event._observeAndCache(element, name, observer, useCapture);
 },
 
 stopObserving: function(element, name, observer, useCapture) {
 element = $(element);
 useCapture = useCapture || false;
 
 if (name == 'keypress' &&
 (Prototype.Browser.WebKit || element.attachEvent))
 name = 'keydown';
 
 if (element.removeEventListener) {
 element.removeEventListener(name, observer, useCapture);
 } else if (element.detachEvent) {
 try {
 element.detachEvent('on' + name, observer);
 } catch (e) {}
 }
 }
 });
 
 /* prevent memory leaks in IE */
 if (Prototype.Browser.IE)
 Event.observe(window, 'unload', Event.unloadCache, false);
 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;
 },
 
 realOffset: function(element) {
 var valueT = 0, valueL = 0;
 do {
 valueT += element.scrollTop  || 0;
 valueL += element.scrollLeft || 0;
 element = element.parentNode;
 } while (element);
 return [valueL, valueT];
 },
 
 cumulativeOffset: function(element) {
 var valueT = 0, valueL = 0;
 do {
 valueT += element.offsetTop  || 0;
 valueL += element.offsetLeft || 0;
 element = element.offsetParent;
 } while (element);
 return [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=='BODY') break;
 var p = Element.getStyle(element, 'position');
 if (p == 'relative' || p == 'absolute') break;
 }
 } while (element);
 return [valueL, valueT];
 },
 
 offsetParent: 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;
 },
 
 // 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 = this.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 = this.realOffset(element);
 
 this.xcomp = x + offsetcache[0] - this.deltaX;
 this.ycomp = y + offsetcache[1] - this.deltaY;
 this.offset = this.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;
 },
 
 page: 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)
 if (Element.getStyle(element,'position')=='absolute') break;
 
 } while (element = element.offsetParent);
 
 element = forElement;
 do {
 if (!window.opera || element.tagName=='BODY') {
 valueT -= element.scrollTop  || 0;
 valueL -= element.scrollLeft || 0;
 }
 } while (element = element.parentNode);
 
 return [valueL, valueT];
 },
 
 clone: function(source, target) {
 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 = Position.page(source);
 
 // find coordinate system to use
 target = $(target);
 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(target,'position') == 'absolute') {
 parent = Position.offsetParent(target);
 delta = Position.page(parent);
 }
 
 // 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)   target.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
 if(options.setTop)    target.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
 if(options.setWidth)  target.style.width = source.offsetWidth + 'px';
 if(options.setHeight) target.style.height = source.offsetHeight + 'px';
 },
 
 absolutize: function(element) {
 element = $(element);
 if (element.style.position == 'absolute') return;
 Position.prepare();
 
 var offsets = Position.positionedOffset(element);
 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';
 },
 
 relativize: function(element) {
 element = $(element);
 if (element.style.position == 'relative') return;
 Position.prepare();
 
 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;
 }
 }
 
 // Safari returns margins on body which is incorrect if the child is absolutely
 // positioned.  For performance reasons, redefine Position.cumulativeOffset for
 // KHTML/WebKit only.
 if (Prototype.Browser.WebKit) {
 Position.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 [valueL, valueT];
 }
 }
 
 Element.addMethods();// script.aculo.us scriptaculous.js v1.7.1_beta2, Sat Apr 28 15:20:12 CEST 2007
 
 // Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
 // 
 // 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.
 //
 // For details, see the script.aculo.us web site: http://script.aculo.us/
 
 var Scriptaculous = {
 Version: '1.7.1_beta2',
 require: function(libraryName) {
 // inserting via DOM fails in Safari 2.0, so brute force approach
 document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
 },
 REQUIRED_PROTOTYPE: '1.5.1',
 load: function() {
 function convertVersionString(versionString){
 var r = versionString.split('.');
 return parseInt(r[0])*100000 + parseInt(r[1])*1000 + parseInt(r[2]);
 }
 
 if((typeof Prototype=='undefined') || 
 (typeof Element == 'undefined') || 
 (typeof Element.Methods=='undefined') ||
 (convertVersionString(Prototype.Version) < 
 convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
 throw("script.aculo.us requires the Prototype JavaScript framework >= " +
 Scriptaculous.REQUIRED_PROTOTYPE);
 
 $A(document.getElementsByTagName("script")).findAll( function(s) {
 return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/))
 }).each( function(s) {
 var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,'');
 var includes = s.src.match(/\?.*load=([a-z,]*)/);
 (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each(
 function(include) { Scriptaculous.require(path+include+'.js') });
 });
 }
 }
 
 Scriptaculous.load();// script.aculo.us effects.js v1.7.1_beta2, Sat Apr 28 15:20:12 CEST 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();// lightwindow.js v2.0
 //
 // Copyright (c) 2007 stickmanlabs
 // Author: Kevin P Miller | http://www.stickmanlabs.com
 // 
 // LightWindow is freely distributable under the terms of an MIT-style license.
 //
 // I don't care what you think about the file size...
 //   Be a pro: 
 //     http://www.thinkvitamin.com/features/webapps/serving-javascript-fast
 //      http://rakaz.nl/item/make_your_pages_load_faster_by_combining_and_compressing_javascript_and_css_files
 //
 
 /*-----------------------------------------------------------------------------------------------*/
 
 if(typeof Effect == 'undefined')
 throw("lightwindow.js requires including script.aculo.us' effects.js library!");
 
 // This will stop image flickering in IE6 when elements with images are moved
 try {
 document.execCommand("BackgroundImageCache", false, true);
 } catch(e) {}
 
 var lightwindow = Class.create(); 
 lightwindow.prototype = {
 //
 // Setup Variables
 //
 element : null,
 contentToFetch : null,
 windowActive : false,
 dataEffects : [],
 dimensions : {
 cruft : null,
 container : null,
 viewport : {
 height : null,
 width : null,
 offsetTop : null,
 offsetLeft : null
 }
 },
 pagePosition : {
 x : 0,
 y : 0
 },
 pageDimensions : {
 width : null,
 height : null
 },
 preloadImage : [],
 preloadedImage : [],
 galleries : [],
 resizeTo : {
 height : null,
 heightPercent : null,
 width : null,
 widthPercent : null,
 fixedTop : null,
 fixedLeft : null
 },
 scrollbarOffset : 18,
 navigationObservers : {
 previous : null,
 next : null
 },
 containerChange : {
 height : 0,
 width : 0
 },
 activeGallery : false,
 galleryLocation : {
 current : 0,
 total : 0
 },
 //
 // Initialize the lightwindow.
 //
 initialize : function(options) {
 this.options = Object.extend({
 resizeSpeed : 8,
 contentOffset : {
 height : 20,
 width : 20
 },
 dimensions : {
 image : {height : 250, width : 250},
 page : {height : 250, width : 250},
 inline : {height : 250, width : 250},
 media : {height : 250, width : 250},
 external : {height : 250, width : 250},
 titleHeight : 25
 },
 classNames : { 
 standard : 'lightwindow',
 action : 'lightwindow_action'
 },
 fileTypes : {
 page : ['asp', 'aspx', 'cgi', 'cfm', 'htm', 'html'