/*  Prototype JavaScript framework, version 1.7
 *  (c) 2005-2010 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:'1.7',

	Browser:(function ()
	{
		var ua = navigator.userAgent;
		var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
		return {
			IE:!!window.attachEvent && !isOpera,
			Opera:isOpera,
			WebKit:ua.indexOf('AppleWebKit/') > -1,
			Gecko:ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
			MobileSafari:/Apple.*Mobile/.test(ua)
		}
	})(),

	BrowserFeatures:{
		XPath:!!document.evaluate,

		SelectorsAPI:!!document.querySelector,

		ElementExtensions:(function ()
		{
			var constructor = window.Element || window.HTMLElement;
			return !!(constructor && constructor.prototype);
		})(),
		SpecificElementExtensions:(function ()
		{
			if (typeof window.HTMLDivElement !== 'undefined')
				return true;

			var div = document.createElement('div'),
					form = document.createElement('form'),
					isSupported = false;

			if (div['__proto__'] && (div['__proto__'] !== form['__proto__']))
			{
				isSupported = true;
			}

			div = form = null;

			return isSupported;
		})()
	},

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

	emptyFunction:function ()
	{
	},

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

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

var Abstract = { };

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;
	}
};

/* Based on Alex Arnell's inheritance implementation. */

var Class = (function ()
{

	var IS_DONTENUM_BUGGY = (function ()
	{
		for (var p in { toString:1 })
		{
			if (p === 'toString') return false;
		}
		return true;
	})();

	function subclass()
	{
	}

	;
	function create()
	{
		var parent = null, properties = $A(arguments);
		if (Object.isFunction(properties[0]))
			parent = properties.shift();

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

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

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

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

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

		klass.prototype.constructor = klass;
		return klass;
	}

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

		if (IS_DONTENUM_BUGGY)
		{
			if (source.toString != Object.prototype.toString)
				properties.push("toString");
			if (source.valueOf != Object.prototype.valueOf)
				properties.push("valueOf");
		}

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

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

		return this;
	}

	return {
		create:create,
		Methods:{
			addMethods:addMethods
		}
	};
})();
(function ()
{

	var _toString = Object.prototype.toString,
			NULL_TYPE = 'Null',
			UNDEFINED_TYPE = 'Undefined',
			BOOLEAN_TYPE = 'Boolean',
			NUMBER_TYPE = 'Number',
			STRING_TYPE = 'String',
			OBJECT_TYPE = 'Object',
			FUNCTION_CLASS = '[object Function]',
			BOOLEAN_CLASS = '[object Boolean]',
			NUMBER_CLASS = '[object Number]',
			STRING_CLASS = '[object String]',
			ARRAY_CLASS = '[object Array]',
			DATE_CLASS = '[object Date]',
			NATIVE_JSON_STRINGIFY_SUPPORT = window.JSON &&
					typeof JSON.stringify === 'function' &&
					JSON.stringify(0) === '0' &&
					typeof JSON.stringify(Prototype.K) === 'undefined';

	function Type(o)
	{
		switch (o)
		{
			case null:
				return NULL_TYPE;
			case (void 0):
				return UNDEFINED_TYPE;
		}
		var type = typeof o;
		switch (type)
		{
			case 'boolean':
				return BOOLEAN_TYPE;
			case 'number':
				return NUMBER_TYPE;
			case 'string':
				return STRING_TYPE;
		}
		return OBJECT_TYPE;
	}

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

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

	function toJSON(value)
	{
		return Str('', { '':value }, []);
	}

	function Str(key, holder, stack)
	{
		var value = holder[key],
				type = typeof value;

		if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function')
		{
			value = value.toJSON(key);
		}

		var _class = _toString.call(value);

		switch (_class)
		{
			case NUMBER_CLASS:
			case BOOLEAN_CLASS:
			case STRING_CLASS:
				value = value.valueOf();
		}

		switch (value)
		{
			case null:
				return 'null';
			case true:
				return 'true';
			case false:
				return 'false';
		}

		type = typeof value;
		switch (type)
		{
			case 'string':
				return value.inspect(true);
			case 'number':
				return isFinite(value) ? String(value) : 'null';
			case 'object':

				for (var i = 0, length = stack.length; i < length; i++)
				{
					if (stack[i] === value)
					{
						throw new TypeError();
					}
				}
				stack.push(value);

				var partial = [];
				if (_class === ARRAY_CLASS)
				{
					for (var i = 0, length = value.length; i < length; i++)
					{
						var str = Str(i, value, stack);
						partial.push(typeof str === 'undefined' ? 'null' : str);
					}
					partial = '[' + partial.join(',') + ']';
				}
				else
				{
					var keys = Object.keys(value);
					for (var i = 0, length = keys.length; i < length; i++)
					{
						var key = keys[i], str = Str(key, value, stack);
						if (typeof str !== "undefined")
						{
							partial.push(key.inspect(true) + ':' + str);
						}
					}
					partial = '{' + partial.join(',') + '}';
				}
				stack.pop();
				return partial;
		}
	}

	function stringify(object)
	{
		return JSON.stringify(object);
	}

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

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

	function keys(object)
	{
		if (Type(object) !== OBJECT_TYPE)
		{
			throw new TypeError();
		}
		var results = [];
		for (var property in object)
		{
			if (object.hasOwnProperty(property))
			{
				results.push(property);
			}
		}
		return results;
	}

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

	function clone(object)
	{
		return extend({ }, object);
	}

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

	function isArray(object)
	{
		return _toString.call(object) === ARRAY_CLASS;
	}

	var hasNativeIsArray = (typeof Array.isArray == 'function')
			&& Array.isArray([]) && !Array.isArray({});

	if (hasNativeIsArray)
	{
		isArray = Array.isArray;
	}

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

	function isFunction(object)
	{
		return _toString.call(object) === FUNCTION_CLASS;
	}

	function isString(object)
	{
		return _toString.call(object) === STRING_CLASS;
	}

	function isNumber(object)
	{
		return _toString.call(object) === NUMBER_CLASS;
	}

	function isDate(object)
	{
		return _toString.call(object) === DATE_CLASS;
	}

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

	extend(Object, {
		extend:extend,
		inspect:inspect,
		toJSON:NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON,
		toQueryString:toQueryString,
		toHTML:toHTML,
		keys:Object.keys || keys,
		values:values,
		clone:clone,
		isElement:isElement,
		isArray:isArray,
		isHash:isHash,
		isFunction:isFunction,
		isString:isString,
		isNumber:isNumber,
		isDate:isDate,
		isUndefined:isUndefined
	});
})();
Object.extend(Function.prototype, (function ()
{
	var slice = Array.prototype.slice;

	function update(array, args)
	{
		var arrayLength = array.length, length = args.length;
		while (length--) array[arrayLength + length] = args[length];
		return array;
	}

	function merge(array, args)
	{
		array = slice.call(array, 0);
		return update(array, args);
	}

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

	function bind(context)
	{
		if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
		var __method = this, args = slice.call(arguments, 1);
		return function ()
		{
			var a = merge(args, arguments);
			return __method.apply(context, a);
		}
	}

	function bindAsEventListener(context)
	{
		var __method = this, args = slice.call(arguments, 1);
		return function (event)
		{
			var a = update([event || window.event], args);
			return __method.apply(context, a);
		}
	}

	function curry()
	{
		if (!arguments.length) return this;
		var __method = this, args = slice.call(arguments, 0);
		return function ()
		{
			var a = merge(args, arguments);
			return __method.apply(this, a);
		}
	}

	function delay(timeout)
	{
		var __method = this, args = slice.call(arguments, 1);
		timeout = timeout * 1000;
		return window.setTimeout(function ()
		                         {
			                         return __method.apply(__method, args);
		                         }, timeout);
	}

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

	function wrap(wrapper)
	{
		var __method = this;
		return function ()
		{
			var a = update([__method.bind(this)], arguments);
			return wrapper.apply(this, a);
		}
	}

	function methodize()
	{
		if (this._methodized) return this._methodized;
		var __method = this;
		return this._methodized = function ()
		{
			var a = update([this], arguments);
			return __method.apply(null, a);
		};
	}

	return {
		argumentNames:argumentNames,
		bind:bind,
		bindAsEventListener:bindAsEventListener,
		curry:curry,
		delay:delay,
		defer:defer,
		wrap:wrap,
		methodize:methodize
	}
})());

(function (proto)
{

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

	function toJSON()
	{
		return this.toISOString();
	}

	if (!proto.toISOString) proto.toISOString = toISOString;
	if (!proto.toJSON) proto.toJSON = toJSON;

})(Date.prototype);

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

RegExp.escape = function (str)
{
	return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
var PeriodicalExecuter = Class.create({
	                                      initialize:function (callback, frequency)
	                                      {
		                                      this.callback = callback;
		                                      this.frequency = frequency;
		                                      this.currentlyExecuting = false;

		                                      this.registerCallback();
	                                      },

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

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

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

	                                      onTimerEvent:function ()
	                                      {
		                                      if (!this.currentlyExecuting)
		                                      {
			                                      try
			                                      {
				                                      this.currentlyExecuting = true;
				                                      this.execute();
				                                      this.currentlyExecuting = false;
			                                      }
			                                      catch (e)
			                                      {
				                                      this.currentlyExecuting = false;
				                                      throw e;
			                                      }
		                                      }
	                                      }
                                      });
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, (function ()
{
	var NATIVE_JSON_PARSE_SUPPORT = window.JSON &&
			typeof JSON.parse === 'function' &&
			JSON.parse('{"test": true}').test;

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

	function gsub(pattern, replacement)
	{
		var result = '', source = this, match;
		replacement = prepareReplacement(replacement);

		if (Object.isString(pattern))
			pattern = RegExp.escape(pattern);

		if (!(pattern.length || pattern.source))
		{
			replacement = replacement('');
			return replacement + source.split('').join(replacement) + 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;
	}

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

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

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

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

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

	function stripTags()
	{
		return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
	}

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

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

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

	function escapeHTML()
	{
		return this.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
	}

	function unescapeHTML()
	{
		return this.stripTags().replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&amp;/g, '&');
	}

	function toQueryParams(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()),
						value = pair.length > 1 ? pair.join('=') : pair[0];

				if (value != undefined) value = decodeURIComponent(value);

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

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

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

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

	function camelize()
	{
		return this.replace(/-+(.)?/g, function (match, chr)
		{
			return chr ? chr.toUpperCase() : '';
		});
	}

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

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

	function dasherize()
	{
		return this.replace(/_/g, '-');
	}

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

	function unfilterJSON(filter)
	{
		return this.replace(filter || Prototype.JSONFilter, '$1');
	}

	function isJSON()
	{
		var str = this;
		if (str.blank()) return false;
		str = str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@');
		str = str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
		str = str.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
		return (/^[\],:{}\s]*$/).test(str);
	}

	function evalJSON(sanitize)
	{
		var json = this.unfilterJSON(),
				cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
		if (cx.test(json))
		{
			json = json.replace(cx, function (a)
			{
				return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
			});
		}
		try
		{
			if (!sanitize || json.isJSON()) return eval('(' + json + ')');
		}
		catch (e)
		{
		}
		throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
	}

	function parseJSON()
	{
		var json = this.unfilterJSON();
		return JSON.parse(json);
	}

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

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

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

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

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

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

	return {
		gsub:gsub,
		sub:sub,
		scan:scan,
		truncate:truncate,
		strip:String.prototype.trim || strip,
		stripTags:stripTags,
		stripScripts:stripScripts,
		extractScripts:extractScripts,
		evalScripts:evalScripts,
		escapeHTML:escapeHTML,
		unescapeHTML:unescapeHTML,
		toQueryParams:toQueryParams,
		parseQuery:toQueryParams,
		toArray:toArray,
		succ:succ,
		times:times,
		camelize:camelize,
		capitalize:capitalize,
		underscore:underscore,
		dasherize:dasherize,
		inspect:inspect,
		unfilterJSON:unfilterJSON,
		isJSON:isJSON,
		evalJSON:NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON,
		include:include,
		startsWith:startsWith,
		endsWith:endsWith,
		empty:empty,
		blank:blank,
		interpolate:interpolate
	};
})());

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

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

		                            return this.template.gsub(this.pattern, function (match)
		                            {
			                            if (object == null) return (match[1] + '');

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

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

			                            match = pattern.exec(expr);
			                            if (match == null) return before;

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	return {
		each:each,
		eachSlice:eachSlice,
		all:all,
		every:all,
		any:any,
		some:any,
		collect:collect,
		map:collect,
		detect:detect,
		findAll:findAll,
		select:findAll,
		filter:findAll,
		grep:grep,
		include:include,
		member:include,
		inGroupsOf:inGroupsOf,
		inject:inject,
		invoke:invoke,
		max:max,
		min:min,
		partition:partition,
		pluck:pluck,
		reject:reject,
		sortBy:sortBy,
		toArray:toArray,
		entries:toArray,
		zip:zip,
		size:size,
		inspect:inspect,
		find:detect
	};
})();

function $A(iterable)
{
	if (!iterable) return [];
	if ('toArray' in Object(iterable)) return iterable.toArray();
	var length = iterable.length || 0, results = new Array(length);
	while (length--) results[length] = iterable[length];
	return results;
}

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

Array.from = $A;

(function ()
{
	var arrayProto = Array.prototype,
			slice = arrayProto.slice,
			_each = arrayProto.forEach; // use native browser JS 1.6 implementation if available

	function each(iterator, context)
	{
		for (var i = 0, length = this.length >>> 0; i < length; i++)
		{
			if (i in this) iterator.call(context, this[i], i, this);
		}
	}

	if (!_each) _each = each;

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

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

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

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

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

	function without()
	{
		var values = slice.call(arguments, 0);
		return this.select(function (value)
		                   {
			                   return !values.include(value);
		                   });
	}

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

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

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

	function clone()
	{
		return slice.call(this, 0);
	}

	function size()
	{
		return this.length;
	}

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

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

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

	function concat()
	{
		var array = slice.call(this, 0), item;
		for (var i = 0, length = arguments.length; i < length; i++)
		{
			item = arguments[i];
			if (Object.isArray(item) && !('callee' in item))
			{
				for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
					array.push(item[j]);
			}
			else
			{
				array.push(item);
			}
		}
		return array;
	}

	Object.extend(arrayProto, Enumerable);

	if (!arrayProto._reverse)
		arrayProto._reverse = arrayProto.reverse;

	Object.extend(arrayProto, {
		_each:_each,
		clear:clear,
		first:first,
		last:last,
		compact:compact,
		flatten:flatten,
		without:without,
		reverse:reverse,
		uniq:uniq,
		intersect:intersect,
		clone:clone,
		toArray:clone,
		size:size,
		inspect:inspect
	});

	var CONCAT_ARGUMENTS_BUGGY = (function ()
	{
		return [].concat(arguments)[0][0] !== 1;
	})(1, 2)

	if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

	if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
	if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
})();
function $H(object)
{
	return new Hash(object);
}
;

var Hash = Class.create(Enumerable, (function ()
{
	function initialize(object)
	{
		this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
	}

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

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

	function get(key)
	{
		if (this._object[key] !== Object.prototype[key])
			return this._object[key];
	}

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

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

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

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

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

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

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

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

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

			                   if (values && typeof values == 'object')
			                   {
				                   if (Object.isArray(values))
				                   {
					                   var queryValues = [];
					                   for (var i = 0, len = values.length, value; i < len; i++)
					                   {
						                   value = values[i];
						                   queryValues.push(toQueryPair(key, value));
					                   }
					                   return results.concat(queryValues);
				                   }
			                   }
			                   else results.push(toQueryPair(key, values));
			                   return results;
		                   }).join('&');
	}

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

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

	return {
		initialize:initialize,
		_each:_each,
		set:set,
		get:get,
		unset:unset,
		toObject:toObject,
		toTemplateReplacements:toObject,
		keys:keys,
		values:values,
		index:index,
		merge:merge,
		update:update,
		toQueryString:toQueryString,
		inspect:inspect,
		toJSON:toObject,
		clone:clone
	};
})());

Hash.from = $H;
Object.extend(Number.prototype, (function ()
{
	function toColorPart()
	{
		return this.toPaddedString(2, 16);
	}

	function succ()
	{
		return this + 1;
	}

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

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

	function abs()
	{
		return Math.abs(this);
	}

	function round()
	{
		return Math.round(this);
	}

	function ceil()
	{
		return Math.ceil(this);
	}

	function floor()
	{
		return Math.floor(this);
	}

	return {
		toColorPart:toColorPart,
		succ:succ,
		times:times,
		toPaddedString:toPaddedString,
		abs:abs,
		round:round,
		ceil:ceil,
		floor:floor
	};
})());

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

var ObjectRange = Class.create(Enumerable, (function ()
{
	function initialize(start, end, exclusive)
	{
		this.start = start;
		this.end = end;
		this.exclusive = exclusive;
	}

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

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

	return {
		initialize:initialize,
		_each:_each,
		include:include
	};
})());

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

	activeRequestCount:0
};

Ajax.Responders = {
	responders:[],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

		                         if (Object.isHash(this.options.parameters))
			                         this.options.parameters = this.options.parameters.toObject();
	                         }
                         });
Ajax.Request = Class.create(Ajax.Base, {
	_complete:false,

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

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

		if (!['get', 'post'].include(this.method))
		{
			params += (params ? '&' : '') + "_method=" + this.method;
			this.method = 'post';
		}

		if (params && this.method === 'get')
		{
			this.url += (this.url.include('?') ? '&' : '?') + params;
		}

		this.parameters = params.toQueryParams();

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

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

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

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

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

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

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

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

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

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

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

		if (typeof this.options.requestHeaders == 'object')
		{
			var extras = this.options.requestHeaders;

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

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

	success:function ()
	{
		var status = this.getStatus();
		return !status || (status >= 200 && status < 300) || status == 304;
	},

	getStatus:function ()
	{
		try
		{
			if (this.transport.status === 1223) return 204;
			return this.transport.status || 0;
		}
		catch (e)
		{
			return 0
		}
	},

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

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

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

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

		if (state == 'Complete')
		{
			this.transport.onreadystatechange = Prototype.emptyFunction;
		}
	},

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

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

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

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

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

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

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

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

	                             status:0,

	                             statusText:'',

	                             getStatus:Ajax.Request.prototype.getStatus,

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

	                             getHeader:Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

		$super(url, options);
	},

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

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

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

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

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

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

		this.start();
	},

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

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

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

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

	onTimerEvent:function ()
	{
		this.updater = new Ajax.Updater(this.container, this.url, this.options);
	}
});

function $(element)
{
	if (arguments.length > 1)
	{
		for (var i = 0, elements = [], length = arguments.length; i < length; i++)
			elements.push($(arguments[i]));
		return elements;
	}
	if (Object.isString(element))
		element = document.getElementById(element);
	return Element.extend(element);
}

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

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

if (!Node) var Node = { };

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

(function (global)
{
	function shouldUseCache(tagName, attributes)
	{
		if (tagName === 'select') return false;
		if ('type' in attributes) return false;
		return true;
	}

	var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function ()
	{
		try
		{
			var el = document.createElement('<input name="x">');
			return el.tagName.toLowerCase() === 'input' && el.name === 'x';
		}
		catch (err)
		{
			return false;
		}
	})();

	var element = global.Element;

	global.Element = function (tagName, attributes)
	{
		attributes = attributes || { };
		tagName = tagName.toLowerCase();
		var cache = Element.cache;

		if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name)
		{
			tagName = '<' + tagName + ' name="' + attributes.name + '">';
			delete attributes.name;
			return Element.writeAttribute(document.createElement(tagName), attributes);
		}

		if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));

		var node = shouldUseCache(tagName, attributes) ?
		           cache[tagName].cloneNode(false) : document.createElement(tagName);

		return Element.writeAttribute(node, attributes);
	};

	Object.extend(global.Element, element || { });
	if (element) global.Element.prototype = element.prototype;

})(this);

Element.idCounter = 1;
Element.cache = { };

Element._purgeElement = function (element)
{
	var uid = element._prototypeUID;
	if (uid)
	{
		Element.stopObserving(element);
		element._prototypeUID = void 0;
		delete Element.Storage[uid];
	}
}

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

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

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

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

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

	update:(function ()
	{

		var SELECT_ELEMENT_INNERHTML_BUGGY = (function ()
		{
			var el = document.createElement("select"),
					isBuggy = true;
			el.innerHTML = "<option value=\"test\">test</option>";
			if (el.options && el.options[0])
			{
				isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
			}
			el = null;
			return isBuggy;
		})();

		var TABLE_ELEMENT_INNERHTML_BUGGY = (function ()
		{
			try
			{
				var el = document.createElement("table");
				if (el && el.tBodies)
				{
					el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
					var isBuggy = typeof el.tBodies[0] == "undefined";
					el = null;
					return isBuggy;
				}
			}
			catch (e)
			{
				return true;
			}
		})();

		var LINK_ELEMENT_INNERHTML_BUGGY = (function ()
		{
			try
			{
				var el = document.createElement('div');
				el.innerHTML = "<link>";
				var isBuggy = (el.childNodes.length === 0);
				el = null;
				return isBuggy;
			}
			catch (e)
			{
				return true;
			}
		})();

		var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY ||
				TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;

		var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function ()
		{
			var s = document.createElement("script"),
					isBuggy = false;
			try
			{
				s.appendChild(document.createTextNode(""));
				isBuggy = !s.firstChild ||
						s.firstChild && s.firstChild.nodeType !== 3;
			}
			catch (e)
			{
				isBuggy = true;
			}
			s = null;
			return isBuggy;
		})();

		function update(element, content)
		{
			element = $(element);
			var purgeElement = Element._purgeElement;

			var descendants = element.getElementsByTagName('*'),
					i = descendants.length;
			while (i--) purgeElement(descendants[i]);

			if (content && content.toElement)
				content = content.toElement();

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

			content = Object.toHTML(content);

			var tagName = element.tagName.toUpperCase();

			if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING)
			{
				element.text = content;
				return element;
			}

			if (ANY_INNERHTML_BUGGY)
			{
				if (tagName in Element._insertionTranslations.tags)
				{
					while (element.firstChild)
					{
						element.removeChild(element.firstChild);
					}
					Element._getContentFromAnonymousElement(tagName, content.stripScripts())
							.each(function (node)
							      {
								      element.appendChild(node)
							      });
				} else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1)
				{
					while (element.firstChild)
					{
						element.removeChild(element.firstChild);
					}
					var nodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts(), true);
					nodes.each(function (node)
					           {
						           element.appendChild(node)
					           });
				}
				else
				{
					element.innerHTML = content.stripScripts();
				}
			}
			else
			{
				element.innerHTML = content.stripScripts();
			}

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

		return update;
	})(),

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

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

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

		var content, insert, tagName, childNodes;

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

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

			content = Object.toHTML(content);

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

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

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

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

		return element;
	},

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

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

	recursivelyCollect:function (element, property, maximumLength)
	{
		element = $(element);
		maximumLength = maximumLength || -1;
		var elements = [];

		while (element = element[property])
		{
			if (element.nodeType == 1)
				elements.push(Element.extend(element));
			if (elements.length == maximumLength)
				break;
		}

		return elements;
	},

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

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

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

	immediateDescendants:function (element)
	{
		var results = [], child = $(element).firstChild;
		while (child)
		{
			if (child.nodeType === 1)
			{
				results.push(Element.extend(child));
			}
			child = child.nextSibling;
		}
		return results;
	},

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

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

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

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

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

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

	previous:function (element, expression, index)
	{
		element = $(element);
		if (Object.isNumber(expression)) index = expression, expression = false;
		if (!Object.isNumber(index)) index = 0;

		if (expression)
		{
			return Prototype.Selector.find(element.previousSiblings(), expression, index);
		}
		else
		{
			return element.recursivelyCollect("previousSibling", index + 1)[index];
		}
	},

	next:function (element, expression, index)
	{
		element = $(element);
		if (Object.isNumber(expression)) index = expression, expression = false;
		if (!Object.isNumber(index)) index = 0;

		if (expression)
		{
			return Prototype.Selector.find(element.nextSiblings(), expression, index);
		}
		else
		{
			var maximumLength = Object.isNumber(index) ? index + 1 : 1;
			return element.recursivelyCollect("nextSibling", index + 1)[index];
		}
	},

	select:function (element)
	{
		element = $(element);
		var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
		return Prototype.Selector.select(expressions, element);
	},

	adjacent:function (element)
	{
		element = $(element);
		var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
		return Prototype.Selector.select(expressions, element.parentNode).without(element);
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return false;
	},

	scrollTo:function (element)
	{
		element = $(element);
		var pos = Element.cumulativeOffset(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 || value == 'auto')
		{
			var css = document.defaultView.getComputedStyle(element, null);
			value = css ? css[style] : null;
		}
		if (style == 'opacity') return value ? parseFloat(value) : 1.0;
		return value == 'auto' ? null : value;
	},

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

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

		return element;
	},

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

	makePositioned:function (element)
	{
		element = $(element);
		var pos = Element.getStyle(element, 'position');
		if (pos == 'static' || !pos)
		{
			element._madePositioned = true;
			element.style.position = 'relative';
			if (Prototype.Browser.Opera)
			{
				element.style.top = 0;
				element.style.left = 0;
			}
		}
		return element;
	},

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

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

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

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

		source = $(source);
		var p = Element.viewportOffset(source), delta = [0, 0], parent = null;

		element = $(element);

		if (Element.getStyle(element, 'position') == 'absolute')
		{
			parent = Element.getOffsetParent(element);
			delta = Element.viewportOffset(parent);
		}

		if (parent == document.body)
		{
			delta[0] -= document.body.offsetLeft;
			delta[1] -= document.body.offsetTop;
		}

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

Object.extend(Element.Methods, {
	getElementsBySelector:Element.Methods.select,

	childElements:Element.Methods.immediateDescendants
});

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

if (Prototype.Browser.Opera)
{
	Element.Methods.getStyle = Element.Methods.getStyle.wrap(
			function (proceed, element, style)
			{
				switch (style)
				{
					case 'height':
					case 'width':
						if (!Element.visible(element)) return null;

						var dim = parseInt(proceed(element, style), 10);

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

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

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

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

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

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

	Element.Methods.setOpacity = function (element, value)
	{
		function stripAlpha(filter)
		{
			return filter.replace(/alpha\([^\)]*\)/gi, '');
		}

		element = $(element);
		var currentStyle = element.currentStyle;
		if ((currentStyle && !currentStyle.hasLayout) ||
				(!currentStyle && element.style.zoom == 'normal'))
			element.style.zoom = 1;

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

	Element._attributeTranslations = (function ()
	{

		var classProp = 'className',
				forProp = 'for',
				el = document.createElement('div');

		el.setAttribute(classProp, 'x');

		if (el.className !== 'x')
		{
			el.setAttribute('class', 'x');
			if (el.className === 'x')
			{
				classProp = 'class';
			}
		}
		el = null;

		el = document.createElement('label');
		el.setAttribute(forProp, 'x');
		if (el.htmlFor !== 'x')
		{
			el.setAttribute('htmlFor', 'x');
			if (el.htmlFor === 'x')
			{
				forProp = 'htmlFor';
			}
		}
		el = null;

		return {
			read:{
				names:{
					'class':classProp,
					'className':classProp,
					'for':forProp,
					'htmlFor':forProp
				},
				values:{
					_getAttr:function (element, attribute)
					{
						return element.getAttribute(attribute);
					},
					_getAttr2:function (element, attribute)
					{
						return element.getAttribute(attribute, 2);
					},
					_getAttrNode:function (element, attribute)
					{
						var node = element.getAttributeNode(attribute);
						return node ? node.value : "";
					},
					_getEv:(function ()
					{

						var el = document.createElement('div'), f;
						el.onclick = Prototype.emptyFunction;
						var value = el.getAttribute('onclick');

						if (String(value).indexOf('{') > -1)
						{
							f = function (element, attribute)
							{
								attribute = element.getAttribute(attribute);
								if (!attribute) return null;
								attribute = attribute.toString();
								attribute = attribute.split('{')[1];
								attribute = attribute.split('}')[0];
								return attribute.strip();
							};
						}
						else if (value === '')
						{
							f = function (element, attribute)
							{
								attribute = element.getAttribute(attribute);
								if (!attribute) return null;
								return attribute.strip();
							};
						}
						el = null;
						return f;
					})(),
					_flag:function (element, attribute)
					{
						return $(element).hasAttribute(attribute) ? attribute : null;
					},
					style:function (element)
					{
						return element.style.cssText.toLowerCase();
					},
					title:function (element)
					{
						return element.title;
					}
				}
			}
		}
	})();

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

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

	Element._attributeTranslations.has = {};

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

	(function (v)
	{
		Object.extend(v, {
			href:v._getAttr2,
			src:v._getAttr2,
			type:v._getAttr,
			action:v._getAttrNode,
			disabled:v._flag,
			checked:v._flag,
			readonly:v._flag,
			multiple:v._flag,
			onload:v._getEv,
			onunload:v._getEv,
			onclick:v._getEv,
			ondblclick:v._getEv,
			onmousedown:v._getEv,
			onmouseup:v._getEv,
			onmouseover:v._getEv,
			onmousemove:v._getEv,
			onmouseout:v._getEv,
			onfocus:v._getEv,
			onblur:v._getEv,
			onkeypress:v._getEv,
			onkeydown:v._getEv,
			onkeyup:v._getEv,
			onsubmit:v._getEv,
			onreset:v._getEv,
			onselect:v._getEv,
			onchange:v._getEv
		});
	})(Element._attributeTranslations.read.values);

	if (Prototype.BrowserFeatures.ElementExtensions)
	{
		(function ()
		{
			function _descendants(element)
			{
				var nodes = element.getElementsByTagName('*'), results = [];
				for (var i = 0, node; node = nodes[i]; i++)
					if (node.tagName !== "!") // Filter out comment nodes.
						results.push(node);
				return results;
			}

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

}

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

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

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

		return element;
	};
}

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

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

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

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

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

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

Element._getContentFromAnonymousElement = function (tagName, html, force)
{
	var div = new Element('div'),
			t = Element._insertionTranslations.tags[tagName];

	var workaround = false;
	if (t) workaround = true;
	else if (force)
	{
		workaround = true;
		t = ['', '', 0];
	}

	if (workaround)
	{
		div.innerHTML = '&nbsp;' + t[0] + html + t[1];
		div.removeChild(div.firstChild);
		for (var i = t[2]; i--;)
		{
			div = div.firstChild;
		}
	}
	else
	{
		div.innerHTML = html;
	}
	return $A(div.childNodes);
};

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

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

(function (div)
{

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

	div = null;

})(document.createElement('div'));

Element.extend = (function ()
{

	function checkDeficiency(tagName)
	{
		if (typeof window.Element != 'undefined')
		{
			var proto = window.Element.prototype;
			if (proto)
			{
				var id = '_' + (Math.random() + '').slice(2),
						el = document.createElement(tagName);
				proto[id] = 'x';
				var isBuggy = (el[id] !== 'x');
				delete proto[id];
				el = null;
				return isBuggy;
			}
		}
		return false;
	}

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

	var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

	if (Prototype.BrowserFeatures.SpecificElementExtensions)
	{
		if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY)
		{
			return function (element)
			{
				if (element && typeof element._extendedByPrototype == 'undefined')
				{
					var t = element.tagName;
					if (t && (/^(?:object|applet|embed)$/i.test(t)))
					{
						extendElementWith(element, Element.Methods);
						extendElementWith(element, Element.Methods.Simulated);
						extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
					}
				}
				return element;
			}
		}
		return Prototype.K;
	}

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

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

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

		                           if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

		                           extendElementWith(element, methods);

		                           element._extendedByPrototype = Prototype.emptyFunction;
		                           return element;

	                           }, {
		refresh:function ()
		{
			if (!Prototype.BrowserFeatures.ElementExtensions)
			{
				Object.extend(Methods, Element.Methods);
				Object.extend(Methods, Element.Methods.Simulated);
			}
		}
	});

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

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

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),
			"BUTTON":Object.clone(Form.Element.Methods)
		});
	}

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

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

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

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

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

		var element = document.createElement(tagName),
				proto = element['__proto__'] || element.constructor.prototype;

		element = null;
		return proto;
	}

	var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
	                       Element.prototype;

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

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

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

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

document.viewport = {

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

	getScrollOffsets:function ()
	{
		return Element._returnOffset(
				window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
				window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
	}
};

(function (viewport)
{
	var B = Prototype.Browser, doc = document, element, property = {};

	function getRootElement()
	{
		if (B.WebKit && !doc.evaluate)
			return document;

		if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
			return document.body;

		return document.documentElement;
	}

	function define(D)
	{
		if (!element) element = getRootElement();

		property[D] = 'client' + D;

		viewport['get' + D] = function ()
		{
			return element[property[D]]
		};
		return viewport['get' + D]();
	}

	viewport.getWidth = define.curry('Width');

	viewport.getHeight = define.curry('Height');
})(document.viewport);

Element.Storage = {
	UID:1
};

Element.addMethods({
	                   getStorage:function (element)
	                   {
		                   if (!(element = $(element))) return;

		                   var uid;
		                   if (element === window)
		                   {
			                   uid = 0;
		                   }
		                   else
		                   {
			                   if (typeof element._prototypeUID === "undefined")
				                   element._prototypeUID = Element.Storage.UID++;
			                   uid = element._prototypeUID;
		                   }

		                   if (!Element.Storage[uid])
			                   Element.Storage[uid] = $H();

		                   return Element.Storage[uid];
	                   },

	                   store:function (element, key, value)
	                   {
		                   if (!(element = $(element))) return;

		                   if (arguments.length === 2)
		                   {
			                   Element.getStorage(element).update(key);
		                   }
		                   else
		                   {
			                   Element.getStorage(element).set(key, value);
		                   }

		                   return element;
	                   },

	                   retrieve:function (element, key, defaultValue)
	                   {
		                   if (!(element = $(element))) return;
		                   var hash = Element.getStorage(element), value = hash.get(key);

		                   if (Object.isUndefined(value))
		                   {
			                   hash.set(key, defaultValue);
			                   value = defaultValue;
		                   }

		                   return value;
	                   },

	                   clone:function (element, deep)
	                   {
		                   if (!(element = $(element))) return;
		                   var clone = element.cloneNode(deep);
		                   clone._prototypeUID = void 0;
		                   if (deep)
		                   {
			                   var descendants = Element.select(clone, '*'),
					                   i = descendants.length;
			                   while (i--)
			                   {
				                   descendants[i]._prototypeUID = void 0;
			                   }
		                   }
		                   return Element.extend(clone);
	                   },

	                   purge:function (element)
	                   {
		                   if (!(element = $(element))) return;
		                   var purgeElement = Element._purgeElement;

		                   purgeElement(element);

		                   var descendants = element.getElementsByTagName('*'),
				                   i = descendants.length;

		                   while (i--) purgeElement(descendants[i]);

		                   return null;
	                   }
                   });

(function ()
{

	function toDecimal(pctString)
	{
		var match = pctString.match(/^(\d+)%?$/i);
		if (!match) return null;
		return (Number(match[1]) / 100);
	}

	function getPixelValue(value, property, context)
	{
		var element = null;
		if (Object.isElement(value))
		{
			element = value;
			value = element.getStyle(property);
		}

		if (value === null)
		{
			return null;
		}

		if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value))
		{
			return window.parseFloat(value);
		}

		var isPercentage = value.include('%'), isViewport = (context === document.viewport);

		if (/\d/.test(value) && element && element.runtimeStyle && !(isPercentage && isViewport))
		{
			var style = element.style.left, rStyle = element.runtimeStyle.left;
			element.runtimeStyle.left = element.currentStyle.left;
			element.style.left = value || 0;
			value = element.style.pixelLeft;
			element.style.left = style;
			element.runtimeStyle.left = rStyle;

			return value;
		}

		if (element && isPercentage)
		{
			context = context || element.parentNode;
			var decimal = toDecimal(value);
			var whole = null;
			var position = element.getStyle('position');

			var isHorizontal = property.include('left') || property.include('right') ||
					property.include('width');

			var isVertical = property.include('top') || property.include('bottom') ||
					property.include('height');

			if (context === document.viewport)
			{
				if (isHorizontal)
				{
					whole = document.viewport.getWidth();
				} else if (isVertical)
				{
					whole = document.viewport.getHeight();
				}
			}
			else
			{
				if (isHorizontal)
				{
					whole = $(context).measure('width');
				} else if (isVertical)
				{
					whole = $(context).measure('height');
				}
			}

			return (whole === null) ? 0 : whole * decimal;
		}

		return 0;
	}

	function toCSSPixels(number)
	{
		if (Object.isString(number) && number.endsWith('px'))
		{
			return number;
		}
		return number + 'px';
	}

	function isDisplayed(element)
	{
		var originalElement = element;
		while (element && element.parentNode)
		{
			var display = element.getStyle('display');
			if (display === 'none')
			{
				return false;
			}
			element = $(element.parentNode);
		}
		return true;
	}

	var hasLayout = Prototype.K;
	if ('currentStyle' in document.documentElement)
	{
		hasLayout = function (element)
		{
			if (!element.currentStyle.hasLayout)
			{
				element.style.zoom = 1;
			}
			return element;
		};
	}

	function cssNameFor(key)
	{
		if (key.include('border')) key = key + '-width';
		return key.camelize();
	}

	Element.Layout = Class.create(Hash, {
		initialize:function ($super, element, preCompute)
		{
			$super();
			this.element = $(element);

			Element.Layout.PROPERTIES.each(function (property)
			                               {
				                               this._set(property, null);
			                               }, this);

			if (preCompute)
			{
				this._preComputing = true;
				this._begin();
				Element.Layout.PROPERTIES.each(this._compute, this);
				this._end();
				this._preComputing = false;
			}
		},

		_set:function (property, value)
		{
			return Hash.prototype.set.call(this, property, value);
		},

		set:function (property, value)
		{
			throw "Properties of Element.Layout are read-only.";
		},

		get:function ($super, property)
		{
			var value = $super(property);
			return value === null ? this._compute(property) : value;
		},

		_begin:function ()
		{
			if (this._prepared) return;

			var element = this.element;
			if (isDisplayed(element))
			{
				this._prepared = true;
				return;
			}

			var originalStyles = {
				position:element.style.position || '',
				width:element.style.width || '',
				visibility:element.style.visibility || '',
				display:element.style.display || ''
			};

			element.store('prototype_original_styles', originalStyles);

			var position = element.getStyle('position'),
					width = element.getStyle('width');

			if (width === "0px" || width === null)
			{
				element.style.display = 'block';
				width = element.getStyle('width');
			}

			var context = (position === 'fixed') ? document.viewport :
			              element.parentNode;

			element.setStyle({
				                 position:'absolute',
				                 visibility:'hidden',
				                 display:'block'
			                 });

			var positionedWidth = element.getStyle('width');

			var newWidth;
			if (width && (positionedWidth === width))
			{
				newWidth = getPixelValue(element, 'width', context);
			} else if (position === 'absolute' || position === 'fixed')
			{
				newWidth = getPixelValue(element, 'width', context);
			}
			else
			{
				var parent = element.parentNode, pLayout = $(parent).getLayout();

				newWidth = pLayout.get('width') -
						this.get('margin-left') -
						this.get('border-left') -
						this.get('padding-left') -
						this.get('padding-right') -
						this.get('border-right') -
						this.get('margin-right');
			}

			element.setStyle({ width:newWidth + 'px' });

			this._prepared = true;
		},

		_end:function ()
		{
			var element = this.element;
			var originalStyles = element.retrieve('prototype_original_styles');
			element.store('prototype_original_styles', null);
			element.setStyle(originalStyles);
			this._prepared = false;
		},

		_compute:function (property)
		{
			var COMPUTATIONS = Element.Layout.COMPUTATIONS;
			if (!(property in COMPUTATIONS))
			{
				throw "Property not found.";
			}

			return this._set(property, COMPUTATIONS[property].call(this, this.element));
		},

		toObject:function ()
		{
			var args = $A(arguments);
			var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
			           args.join(' ').split(' ');
			var obj = {};
			keys.each(function (key)
			          {
				          if (!Element.Layout.PROPERTIES.include(key)) return;
				          var value = this.get(key);
				          if (value != null) obj[key] = value;
			          }, this);
			return obj;
		},

		toHash:function ()
		{
			var obj = this.toObject.apply(this, arguments);
			return new Hash(obj);
		},

		toCSS:function ()
		{
			var args = $A(arguments);
			var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
			           args.join(' ').split(' ');
			var css = {};

			keys.each(function (key)
			          {
				          if (!Element.Layout.PROPERTIES.include(key)) return;
				          if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return;

				          var value = this.get(key);
				          if (value != null) css[cssNameFor(key)] = value + 'px';
			          }, this);
			return css;
		},

		inspect:function ()
		{
			return "#<Element.Layout>";
		}
	});

	Object.extend(Element.Layout, {
		PROPERTIES:$w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'),

		COMPOSITE_PROPERTIES:$w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'),

		COMPUTATIONS:{
			'height':function (element)
			{
				if (!this._preComputing) this._begin();

				var bHeight = this.get('border-box-height');
				if (bHeight <= 0)
				{
					if (!this._preComputing) this._end();
					return 0;
				}

				var bTop = this.get('border-top'),
						bBottom = this.get('border-bottom');

				var pTop = this.get('padding-top'),
						pBottom = this.get('padding-bottom');

				if (!this._preComputing) this._end();

				return bHeight - bTop - bBottom - pTop - pBottom;
			},

			'width':function (element)
			{
				if (!this._preComputing) this._begin();

				var bWidth = this.get('border-box-width');
				if (bWidth <= 0)
				{
					if (!this._preComputing) this._end();
					return 0;
				}

				var bLeft = this.get('border-left'),
						bRight = this.get('border-right');

				var pLeft = this.get('padding-left'),
						pRight = this.get('padding-right');

				if (!this._preComputing) this._end();

				return bWidth - bLeft - bRight - pLeft - pRight;
			},

			'padding-box-height':function (element)
			{
				var height = this.get('height'),
						pTop = this.get('padding-top'),
						pBottom = this.get('padding-bottom');

				return height + pTop + pBottom;
			},

			'padding-box-width':function (element)
			{
				var width = this.get('width'),
						pLeft = this.get('padding-left'),
						pRight = this.get('padding-right');

				return width + pLeft + pRight;
			},

			'border-box-height':function (element)
			{
				if (!this._preComputing) this._begin();
				var height = element.offsetHeight;
				if (!this._preComputing) this._end();
				return height;
			},

			'border-box-width':function (element)
			{
				if (!this._preComputing) this._begin();
				var width = element.offsetWidth;
				if (!this._preComputing) this._end();
				return width;
			},

			'margin-box-height':function (element)
			{
				var bHeight = this.get('border-box-height'),
						mTop = this.get('margin-top'),
						mBottom = this.get('margin-bottom');

				if (bHeight <= 0) return 0;

				return bHeight + mTop + mBottom;
			},

			'margin-box-width':function (element)
			{
				var bWidth = this.get('border-box-width'),
						mLeft = this.get('margin-left'),
						mRight = this.get('margin-right');

				if (bWidth <= 0) return 0;

				return bWidth + mLeft + mRight;
			},

			'top':function (element)
			{
				var offset = element.positionedOffset();
				return offset.top;
			},

			'bottom':function (element)
			{
				var offset = element.positionedOffset(),
						parent = element.getOffsetParent(),
						pHeight = parent.measure('height');

				var mHeight = this.get('border-box-height');

				return pHeight - mHeight - offset.top;
			},

			'left':function (element)
			{
				var offset = element.positionedOffset();
				return offset.left;
			},

			'right':function (element)
			{
				var offset = element.positionedOffset(),
						parent = element.getOffsetParent(),
						pWidth = parent.measure('width');

				var mWidth = this.get('border-box-width');

				return pWidth - mWidth - offset.left;
			},

			'padding-top':function (element)
			{
				return getPixelValue(element, 'paddingTop');
			},

			'padding-bottom':function (element)
			{
				return getPixelValue(element, 'paddingBottom');
			},

			'padding-left':function (element)
			{
				return getPixelValue(element, 'paddingLeft');
			},

			'padding-right':function (element)
			{
				return getPixelValue(element, 'paddingRight');
			},

			'border-top':function (element)
			{
				return getPixelValue(element, 'borderTopWidth');
			},

			'border-bottom':function (element)
			{
				return getPixelValue(element, 'borderBottomWidth');
			},

			'border-left':function (element)
			{
				return getPixelValue(element, 'borderLeftWidth');
			},

			'border-right':function (element)
			{
				return getPixelValue(element, 'borderRightWidth');
			},

			'margin-top':function (element)
			{
				return getPixelValue(element, 'marginTop');
			},

			'margin-bottom':function (element)
			{
				return getPixelValue(element, 'marginBottom');
			},

			'margin-left':function (element)
			{
				return getPixelValue(element, 'marginLeft');
			},

			'margin-right':function (element)
			{
				return getPixelValue(element, 'marginRight');
			}
		}
	});

	if ('getBoundingClientRect' in document.documentElement)
	{
		Object.extend(Element.Layout.COMPUTATIONS, {
			'right':function (element)
			{
				var parent = hasLayout(element.getOffsetParent());
				var rect = element.getBoundingClientRect(),
						pRect = parent.getBoundingClientRect();

				return (pRect.right - rect.right).round();
			},

			'bottom':function (element)
			{
				var parent = hasLayout(element.getOffsetParent());
				var rect = element.getBoundingClientRect(),
						pRect = parent.getBoundingClientRect();

				return (pRect.bottom - rect.bottom).round();
			}
		});
	}

	Element.Offset = Class.create({
		                              initialize:function (left, top)
		                              {
			                              this.left = left.round();
			                              this.top = top.round();

			                              this[0] = this.left;
			                              this[1] = this.top;
		                              },

		                              relativeTo:function (offset)
		                              {
			                              return new Element.Offset(
					                              this.left - offset.left,
					                              this.top - offset.top
			                              );
		                              },

		                              inspect:function ()
		                              {
			                              return "#<Element.Offset left: #{left} top: #{top}>".interpolate(this);
		                              },

		                              toString:function ()
		                              {
			                              return "[#{left}, #{top}]".interpolate(this);
		                              },

		                              toArray:function ()
		                              {
			                              return [this.left, this.top];
		                              }
	                              });

	function getLayout(element, preCompute)
	{
		return new Element.Layout(element, preCompute);
	}

	function measure(element, property)
	{
		return $(element).getLayout().get(property);
	}

	function getDimensions(element)
	{
		element = $(element);
		var display = Element.getStyle(element, 'display');

		if (display && display !== 'none')
		{
			return { width:element.offsetWidth, height:element.offsetHeight };
		}

		var style = element.style;
		var originalStyles = {
			visibility:style.visibility,
			position:style.position,
			display:style.display
		};

		var newStyles = {
			visibility:'hidden',
			display:'block'
		};

		if (originalStyles.position !== 'fixed')
			newStyles.position = 'absolute';

		Element.setStyle(element, newStyles);

		var dimensions = {
			width:element.offsetWidth,
			height:element.offsetHeight
		};

		Element.setStyle(element, originalStyles);

		return dimensions;
	}

	function getOffsetParent(element)
	{
		element = $(element);

		if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
			return $(document.body);

		var isInline = (Element.getStyle(element, 'display') === 'inline');
		if (!isInline && element.offsetParent) return $(element.offsetParent);

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

		return $(document.body);
	}

	function cumulativeOffset(element)
	{
		element = $(element);
		var valueT = 0, valueL = 0;
		if (element.parentNode)
		{
			do {
				valueT += element.offsetTop || 0;
				valueL += element.offsetLeft || 0;
				element = element.offsetParent;
			}
			while (element);
		}
		return new Element.Offset(valueL, valueT);
	}

	function positionedOffset(element)
	{
		element = $(element);

		var layout = element.getLayout();

		var valueT = 0, valueL = 0;
		do {
			valueT += element.offsetTop || 0;
			valueL += element.offsetLeft || 0;
			element = element.offsetParent;
			if (element)
			{
				if (isBody(element)) break;
				var p = Element.getStyle(element, 'position');
				if (p !== 'static') break;
			}
		}
		while (element);

		valueL -= layout.get('margin-top');
		valueT -= layout.get('margin-left');

		return new Element.Offset(valueL, valueT);
	}

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

	function viewportOffset(forElement)
	{
		element = $(element);
		var valueT = 0, valueL = 0, docBody = document.body;

		var element = forElement;
		do {
			valueT += element.offsetTop || 0;
			valueL += element.offsetLeft || 0;
			if (element.offsetParent == docBody &&
					Element.getStyle(element, 'position') == 'absolute') break;
		}
		while (element = element.offsetParent);

		element = forElement;
		do {
			if (element != docBody)
			{
				valueT -= element.scrollTop || 0;
				valueL -= element.scrollLeft || 0;
			}
		}
		while (element = element.parentNode);
		return new Element.Offset(valueL, valueT);
	}

	function absolutize(element)
	{
		element = $(element);

		if (Element.getStyle(element, 'position') === 'absolute')
		{
			return element;
		}

		var offsetParent = getOffsetParent(element);
		var eOffset = element.viewportOffset(),
				pOffset = offsetParent.viewportOffset();

		var offset = eOffset.relativeTo(pOffset);
		var layout = element.getLayout();

		element.store('prototype_absolutize_original_styles', {
			left:element.getStyle('left'),
			top:element.getStyle('top'),
			width:element.getStyle('width'),
			height:element.getStyle('height')
		});

		element.setStyle({
			                 position:'absolute',
			                 top:offset.top + 'px',
			                 left:offset.left + 'px',
			                 width:layout.get('width') + 'px',
			                 height:layout.get('height') + 'px'
		                 });

		return element;
	}

	function relativize(element)
	{
		element = $(element);
		if (Element.getStyle(element, 'position') === 'relative')
		{
			return element;
		}

		var originalStyles =
				element.retrieve('prototype_absolutize_original_styles');

		if (originalStyles) element.setStyle(originalStyles);
		return element;
	}

	if (Prototype.Browser.IE)
	{
		getOffsetParent = getOffsetParent.wrap(
				function (proceed, element)
				{
					element = $(element);

					if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
						return $(document.body);

					var position = element.getStyle('position');
					if (position !== 'static') return proceed(element);

					element.setStyle({ position:'relative' });
					var value = proceed(element);
					element.setStyle({ position:position });
					return value;
				}
		);

		positionedOffset = positionedOffset.wrap(function (proceed, element)
		                                         {
			                                         element = $(element);
			                                         if (!element.parentNode) return new Element.Offset(0, 0);
			                                         var position = element.getStyle('position');
			                                         if (position !== 'static') return proceed(element);

			                                         var offsetParent = element.getOffsetParent();
			                                         if (offsetParent && offsetParent.getStyle('position') === 'fixed')
				                                         hasLayout(offsetParent);

			                                         element.setStyle({ position:'relative' });
			                                         var value = proceed(element);
			                                         element.setStyle({ position:position });
			                                         return value;
		                                         });
	} else if (Prototype.Browser.Webkit)
	{
		cumulativeOffset = function (element)
		{
			element = $(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 new Element.Offset(valueL, valueT);
		};
	}

	Element.addMethods({
		                   getLayout:getLayout,
		                   measure:measure,
		                   getDimensions:getDimensions,
		                   getOffsetParent:getOffsetParent,
		                   cumulativeOffset:cumulativeOffset,
		                   positionedOffset:positionedOffset,
		                   cumulativeScrollOffset:cumulativeScrollOffset,
		                   viewportOffset:viewportOffset,
		                   absolutize:absolutize,
		                   relativize:relativize
	                   });

	function isBody(element)
	{
		return element.nodeName.toUpperCase() === 'BODY';
	}

	function isHtml(element)
	{
		return element.nodeName.toUpperCase() === 'HTML';
	}

	function isDocument(element)
	{
		return element.nodeType === Node.DOCUMENT_NODE;
	}

	function isDetached(element)
	{
		return element !== document.body &&
				!Element.descendantOf(element, document.body);
	}

	if ('getBoundingClientRect' in document.documentElement)
	{
		Element.addMethods({
			                   viewportOffset:function (element)
			                   {
				                   element = $(element);
				                   if (isDetached(element)) return new Element.Offset(0, 0);

				                   var rect = element.getBoundingClientRect(),
						                   docEl = document.documentElement;
				                   return new Element.Offset(rect.left - docEl.clientLeft,
				                                             rect.top - docEl.clientTop);
			                   }
		                   });
	}
})();
window.$$ = function ()
{
	var expression = $A(arguments).join(', ');
	return Prototype.Selector.select(expression, document);
};

Prototype.Selector = (function ()
{

	function select()
	{
		throw new Error('Method "Prototype.Selector.select" must be defined.');
	}

	function match()
	{
		throw new Error('Method "Prototype.Selector.match" must be defined.');
	}

	function find(elements, expression, index)
	{
		index = index || 0;
		var match = Prototype.Selector.match, length = elements.length, matchIndex = 0, i;

		for (i = 0; i < length; i++)
		{
			if (match(elements[i], expression) && index == matchIndex++)
			{
				return Element.extend(elements[i]);
			}
		}
	}

	function extendElements(elements)
	{
		for (var i = 0, length = elements.length; i < length; i++)
		{
			Element.extend(elements[i]);
		}
		return elements;
	}

	var K = Prototype.K;

	return {
		select:select,
		match:match,
		find:find,
		extendElements:(Element.extend === K) ? K : extendElements,
		extendElement:Element.extend
	};
})();
Prototype._original_property = window.Sizzle;
/*!
 * Sizzle CSS Selector Engine - v1.0
 *  Copyright 2009, The Dojo Foundation
 *  Released under the MIT, BSD, and GPL Licenses.
 *  More information: http://sizzlejs.com/
 */
(function ()
{

	var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
			done = 0,
			toString = Object.prototype.toString,
			hasDuplicate = false,
			baseHasDuplicate = true;

	[0, 0].sort(function ()
	            {
		            baseHasDuplicate = false;
		            return 0;
	            });

	var Sizzle = function (selector, context, results, seed)
	{
		results = results || [];
		var origContext = context = context || document;

		if (context.nodeType !== 1 && context.nodeType !== 9)
		{
			return [];
		}

		if (!selector || typeof selector !== "string")
		{
			return results;
		}

		var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context),
				soFar = selector;

		while ((chunker.exec(""), m = chunker.exec(soFar)) !== null)
		{
			soFar = m[3];

			parts.push(m[1]);

			if (m[2])
			{
				extra = m[3];
				break;
			}
		}

		if (parts.length > 1 && origPOS.exec(selector))
		{
			if (parts.length === 2 && Expr.relative[ parts[0] ])
			{
				set = posProcess(parts[0] + parts[1], context);
			}
			else
			{
				set = Expr.relative[ parts[0] ] ?
				      [ context ] :
				      Sizzle(parts.shift(), context);

				while (parts.length)
				{
					selector = parts.shift();

					if (Expr.relative[ selector ])
						selector += parts.shift();

					set = posProcess(selector, set);
				}
			}
		}
		else
		{
			if (!seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
					Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]))
			{
				var ret = Sizzle.find(parts.shift(), context, contextXML);
				context = ret.expr ? Sizzle.filter(ret.expr, ret.set)[0] : ret.set[0];
			}

			if (context)
			{
				var ret = seed ?
				          { expr:parts.pop(), set:makeArray(seed) } :
				          Sizzle.find(parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML);
				set = ret.expr ? Sizzle.filter(ret.expr, ret.set) : ret.set;

				if (parts.length > 0)
				{
					checkSet = makeArray(set);
				}
				else
				{
					prune = false;
				}

				while (parts.length)
				{
					var cur = parts.pop(), pop = cur;

					if (!Expr.relative[ cur ])
					{
						cur = "";
					}
					else
					{
						pop = parts.pop();
					}

					if (pop == null)
					{
						pop = context;
					}

					Expr.relative[ cur ](checkSet, pop, contextXML);
				}
			}
			else
			{
				checkSet = parts = [];
			}
		}

		if (!checkSet)
		{
			checkSet = set;
		}

		if (!checkSet)
		{
			throw "Syntax error, unrecognized expression: " + (cur || selector);
		}

		if (toString.call(checkSet) === "[object Array]")
		{
			if (!prune)
			{
				results.push.apply(results, checkSet);
			} else if (context && context.nodeType === 1)
			{
				for (var i = 0; checkSet[i] != null; i++)
				{
					if (checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])))
					{
						results.push(set[i]);
					}
				}
			}
			else
			{
				for (var i = 0; checkSet[i] != null; i++)
				{
					if (checkSet[i] && checkSet[i].nodeType === 1)
					{
						results.push(set[i]);
					}
				}
			}
		}
		else
		{
			makeArray(checkSet, results);
		}

		if (extra)
		{
			Sizzle(extra, origContext, results, seed);
			Sizzle.uniqueSort(results);
		}

		return results;
	};

	Sizzle.uniqueSort = function (results)
	{
		if (sortOrder)
		{
			hasDuplicate = baseHasDuplicate;
			results.sort(sortOrder);

			if (hasDuplicate)
			{
				for (var i = 1; i < results.length; i++)
				{
					if (results[i] === results[i - 1])
					{
						results.splice(i--, 1);
					}
				}
			}
		}

		return results;
	};

	Sizzle.matches = function (expr, set)
	{
		return Sizzle(expr, null, null, set);
	};

	Sizzle.find = function (expr, context, isXML)
	{
		var set, match;

		if (!expr)
		{
			return [];
		}

		for (var i = 0, l = Expr.order.length; i < l; i++)
		{
			var type = Expr.order[i], match;

			if ((match = Expr.leftMatch[ type ].exec(expr)))
			{
				var left = match[1];
				match.splice(1, 1);

				if (left.substr(left.length - 1) !== "\\")
				{
					match[1] = (match[1] || "").replace(/\\/g, "");
					set = Expr.find[ type ](match, context, isXML);
					if (set != null)
					{
						expr = expr.replace(Expr.match[ type ], "");
						break;
					}
				}
			}
		}

		if (!set)
		{
			set = context.getElementsByTagName("*");
		}

		return {set:set, expr:expr};
	};

	Sizzle.filter = function (expr, set, inplace, not)
	{
		var old = expr, result = [], curLoop = set, match, anyFound,
				isXMLFilter = set && set[0] && isXML(set[0]);

		while (expr && set.length)
		{
			for (var type in Expr.filter)
			{
				if ((match = Expr.match[ type ].exec(expr)) != null)
				{
					var filter = Expr.filter[ type ], found, item;
					anyFound = false;

					if (curLoop == result)
					{
						result = [];
					}

					if (Expr.preFilter[ type ])
					{
						match = Expr.preFilter[ type ](match, curLoop, inplace, result, not, isXMLFilter);

						if (!match)
						{
							anyFound = found = true;
						} else if (match === true)
						{
							continue;
						}
					}

					if (match)
					{
						for (var i = 0; (item = curLoop[i]) != null; i++)
						{
							if (item)
							{
								found = filter(item, match, i, curLoop);
								var pass = not ^ !!found;

								if (inplace && found != null)
								{
									if (pass)
									{
										anyFound = true;
									}
									else
									{
										curLoop[i] = false;
									}
								} else if (pass)
								{
									result.push(item);
									anyFound = true;
								}
							}
						}
					}

					if (found !== undefined)
					{
						if (!inplace)
						{
							curLoop = result;
						}

						expr = expr.replace(Expr.match[ type ], "");

						if (!anyFound)
						{
							return [];
						}

						break;
					}
				}
			}

			if (expr == old)
			{
				if (anyFound == null)
				{
					throw "Syntax error, unrecognized expression: " + expr;
				}
				else
				{
					break;
				}
			}

			old = expr;
		}

		return curLoop;
	};

	var Expr = Sizzle.selectors = {
		order:[ "ID", "NAME", "TAG" ],
		match:{
			ID:/#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
			CLASS:/\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
			NAME:/\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
			ATTR:/\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
			TAG:/^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
			CHILD:/:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
			POS:/:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
			PSEUDO:/:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
		},
		leftMatch:{},
		attrMap:{
			"class":"className",
			"for":"htmlFor"
		},
		attrHandle:{
			href:function (elem)
			{
				return elem.getAttribute("href");
			}
		},
		relative:{
			"+":function (checkSet, part, isXML)
			{
				var isPartStr = typeof part === "string",
						isTag = isPartStr && !/\W/.test(part),
						isPartStrNotTag = isPartStr && !isTag;

				if (isTag && !isXML)
				{
					part = part.toUpperCase();
				}

				for (var i = 0, l = checkSet.length, elem; i < l; i++)
				{
					if ((elem = checkSet[i]))
					{
						while ((elem = elem.previousSibling) && elem.nodeType !== 1)
						{
						}

						checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
						              elem || false :
						              elem === part;
					}
				}

				if (isPartStrNotTag)
				{
					Sizzle.filter(part, checkSet, true);
				}
			},
			">":function (checkSet, part, isXML)
			{
				var isPartStr = typeof part === "string";

				if (isPartStr && !/\W/.test(part))
				{
					part = isXML ? part : part.toUpperCase();

					for (var i = 0, l = checkSet.length; i < l; i++)
					{
						var elem = checkSet[i];
						if (elem)
						{
							var parent = elem.parentNode;
							checkSet[i] = parent.nodeName === part ? parent : false;
						}
					}
				}
				else
				{
					for (var i = 0, l = checkSet.length; i < l; i++)
					{
						var elem = checkSet[i];
						if (elem)
						{
							checkSet[i] = isPartStr ?
							              elem.parentNode :
							              elem.parentNode === part;
						}
					}

					if (isPartStr)
					{
						Sizzle.filter(part, checkSet, true);
					}
				}
			},
			"":function (checkSet, part, isXML)
			{
				var doneName = done++, checkFn = dirCheck;

				if (!/\W/.test(part))
				{
					var nodeCheck = part = isXML ? part : part.toUpperCase();
					checkFn = dirNodeCheck;
				}

				checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
			},
			"~":function (checkSet, part, isXML)
			{
				var doneName = done++, checkFn = dirCheck;

				if (typeof part === "string" && !/\W/.test(part))
				{
					var nodeCheck = part = isXML ? part : part.toUpperCase();
					checkFn = dirNodeCheck;
				}

				checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
			}
		},
		find:{
			ID:function (match, context, isXML)
			{
				if (typeof context.getElementById !== "undefined" && !isXML)
				{
					var m = context.getElementById(match[1]);
					return m ? [m] : [];
				}
			},
			NAME:function (match, context, isXML)
			{
				if (typeof context.getElementsByName !== "undefined")
				{
					var ret = [], results = context.getElementsByName(match[1]);

					for (var i = 0, l = results.length; i < l; i++)
					{
						if (results[i].getAttribute("name") === match[1])
						{
							ret.push(results[i]);
						}
					}

					return ret.length === 0 ? null : ret;
				}
			},
			TAG:function (match, context)
			{
				return context.getElementsByTagName(match[1]);
			}
		},
		preFilter:{
			CLASS:function (match, curLoop, inplace, result, not, isXML)
			{
				match = " " + match[1].replace(/\\/g, "") + " ";

				if (isXML)
				{
					return match;
				}

				for (var i = 0, elem; (elem = curLoop[i]) != null; i++)
				{
					if (elem)
					{
						if (not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0))
						{
							if (!inplace)
								result.push(elem);
						} else if (inplace)
						{
							curLoop[i] = false;
						}
					}
				}

				return false;
			},
			ID:function (match)
			{
				return match[1].replace(/\\/g, "");
			},
			TAG:function (match, curLoop)
			{
				for (var i = 0; curLoop[i] === false; i++)
				{
				}
				return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
			},
			CHILD:function (match)
			{
				if (match[1] == "nth")
				{
					var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
							match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
									!/\D/.test(match[2]) && "0n+" + match[2] || match[2]);

					match[2] = (test[1] + (test[2] || 1)) - 0;
					match[3] = test[3] - 0;
				}

				match[0] = done++;

				return match;
			},
			ATTR:function (match, curLoop, inplace, result, not, isXML)
			{
				var name = match[1].replace(/\\/g, "");

				if (!isXML && Expr.attrMap[name])
				{
					match[1] = Expr.attrMap[name];
				}

				if (match[2] === "~=")
				{
					match[4] = " " + match[4] + " ";
				}

				return match;
			},
			PSEUDO:function (match, curLoop, inplace, result, not)
			{
				if (match[1] === "not")
				{
					if (( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]))
					{
						match[3] = Sizzle(match[3], null, null, curLoop);
					}
					else
					{
						var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
						if (!inplace)
						{
							result.push.apply(result, ret);
						}
						return false;
					}
				} else if (Expr.match.POS.test(match[0]) || Expr.match.CHILD.test(match[0]))
				{
					return true;
				}

				return match;
			},
			POS:function (match)
			{
				match.unshift(true);
				return match;
			}
		},
		filters:{
			enabled:function (elem)
			{
				return elem.disabled === false && elem.type !== "hidden";
			},
			disabled:function (elem)
			{
				return elem.disabled === true;
			},
			checked:function (elem)
			{
				return elem.checked === true;
			},
			selected:function (elem)
			{
				elem.parentNode.selectedIndex;
				return elem.selected === true;
			},
			parent:function (elem)
			{
				return !!elem.firstChild;
			},
			empty:function (elem)
			{
				return !elem.firstChild;
			},
			has:function (elem, i, match)
			{
				return !!Sizzle(match[3], elem).length;
			},
			header:function (elem)
			{
				return /h\d/i.test(elem.nodeName);
			},
			text:function (elem)
			{
				return "text" === elem.type;
			},
			radio:function (elem)
			{
				return "radio" === elem.type;
			},
			checkbox:function (elem)
			{
				return "checkbox" === elem.type;
			},
			file:function (elem)
			{
				return "file" === elem.type;
			},
			password:function (elem)
			{
				return "password" === elem.type;
			},
			submit:function (elem)
			{
				return "submit" === elem.type;
			},
			image:function (elem)
			{
				return "image" === elem.type;
			},
			reset:function (elem)
			{
				return "reset" === elem.type;
			},
			button:function (elem)
			{
				return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
			},
			input:function (elem)
			{
				return /input|select|textarea|button/i.test(elem.nodeName);
			}
		},
		setFilters:{
			first:function (elem, i)
			{
				return i === 0;
			},
			last:function (elem, i, match, array)
			{
				return i === array.length - 1;
			},
			even:function (elem, i)
			{
				return i % 2 === 0;
			},
			odd:function (elem, i)
			{
				return i % 2 === 1;
			},
			lt:function (elem, i, match)
			{
				return i < match[3] - 0;
			},
			gt:function (elem, i, match)
			{
				return i > match[3] - 0;
			},
			nth:function (elem, i, match)
			{
				return match[3] - 0 == i;
			},
			eq:function (elem, i, match)
			{
				return match[3] - 0 == i;
			}
		},
		filter:{
			PSEUDO:function (elem, match, i, array)
			{
				var name = match[1], filter = Expr.filters[ name ];

				if (filter)
				{
					return filter(elem, i, match, array);
				} else if (name === "contains")
				{
					return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
				} else if (name === "not")
				{
					var not = match[3];

					for (var i = 0, l = not.length; i < l; i++)
					{
						if (not[i] === elem)
						{
							return false;
						}
					}

					return true;
				}
			},
			CHILD:function (elem, match)
			{
				var type = match[1], node = elem;
				switch (type)
				{
					case 'only':
					case 'first':
						while ((node = node.previousSibling))
						{
							if (node.nodeType === 1) return false;
						}
						if (type == 'first') return true;
						node = elem;
					case 'last':
						while ((node = node.nextSibling))
						{
							if (node.nodeType === 1) return false;
						}
						return true;
					case 'nth':
						var first = match[2], last = match[3];

						if (first == 1 && last == 0)
						{
							return true;
						}

						var doneName = match[0],
								parent = elem.parentNode;

						if (parent && (parent.sizcache !== doneName || !elem.nodeIndex))
						{
							var count = 0;
							for (node = parent.firstChild; node; node = node.nextSibling)
							{
								if (node.nodeType === 1)
								{
									node.nodeIndex = ++count;
								}
							}
							parent.sizcache = doneName;
						}

						var diff = elem.nodeIndex - last;
						if (first == 0)
						{
							return diff == 0;
						}
						else
						{
							return ( diff % first == 0 && diff / first >= 0 );
						}
				}
			},
			ID:function (elem, match)
			{
				return elem.nodeType === 1 && elem.getAttribute("id") === match;
			},
			TAG:function (elem, match)
			{
				return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
			},
			CLASS:function (elem, match)
			{
				return (" " + (elem.className || elem.getAttribute("class")) + " ")
						.indexOf(match) > -1;
			},
			ATTR:function (elem, match)
			{
				var name = match[1],
						result = Expr.attrHandle[ name ] ?
						         Expr.attrHandle[ name ](elem) :
						         elem[ name ] != null ?
						         elem[ name ] :
						         elem.getAttribute(name),
						value = result + "",
						type = match[2],
						check = match[4];

				return result == null ?
				       type === "!=" :
				       type === "=" ?
				       value === check :
				       type === "*=" ?
				       value.indexOf(check) >= 0 :
				       type === "~=" ?
				       (" " + value + " ").indexOf(check) >= 0 :
				       !check ?
				       value && result !== false :
				       type === "!=" ?
				       value != check :
				       type === "^=" ?
				       value.indexOf(check) === 0 :
				       type === "$=" ?
				       value.substr(value.length - check.length) === check :
				       type === "|=" ?
				       value === check || value.substr(0, check.length + 1) === check + "-" :
				       false;
			},
			POS:function (elem, match, i, array)
			{
				var name = match[2], filter = Expr.setFilters[ name ];

				if (filter)
				{
					return filter(elem, i, match, array);
				}
			}
		}
	};

	var origPOS = Expr.match.POS;

	for (var type in Expr.match)
	{
		Expr.match[ type ] = new RegExp(Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source);
		Expr.leftMatch[ type ] = new RegExp(/(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source);
	}

	var makeArray = function (array, results)
	{
		array = Array.prototype.slice.call(array, 0);

		if (results)
		{
			results.push.apply(results, array);
			return results;
		}

		return array;
	};

	try
	{
		Array.prototype.slice.call(document.documentElement.childNodes, 0);

	}
	catch (e)
	{
		makeArray = function (array, results)
		{
			var ret = results || [];

			if (toString.call(array) === "[object Array]")
			{
				Array.prototype.push.apply(ret, array);
			}
			else
			{
				if (typeof array.length === "number")
				{
					for (var i = 0, l = array.length; i < l; i++)
					{
						ret.push(array[i]);
					}
				}
				else
				{
					for (var i = 0; array[i]; i++)
					{
						ret.push(array[i]);
					}
				}
			}

			return ret;
		};
	}

	var sortOrder;

	if (document.documentElement.compareDocumentPosition)
	{
		sortOrder = function (a, b)
		{
			if (!a.compareDocumentPosition || !b.compareDocumentPosition)
			{
				if (a == b)
				{
					hasDuplicate = true;
				}
				return 0;
			}

			var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
			if (ret === 0)
			{
				hasDuplicate = true;
			}
			return ret;
		};
	} else if ("sourceIndex" in document.documentElement)
	{
		sortOrder = function (a, b)
		{
			if (!a.sourceIndex || !b.sourceIndex)
			{
				if (a == b)
				{
					hasDuplicate = true;
				}
				return 0;
			}

			var ret = a.sourceIndex - b.sourceIndex;
			if (ret === 0)
			{
				hasDuplicate = true;
			}
			return ret;
		};
	} else if (document.createRange)
	{
		sortOrder = function (a, b)
		{
			if (!a.ownerDocument || !b.ownerDocument)
			{
				if (a == b)
				{
					hasDuplicate = true;
				}
				return 0;
			}

			var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
			aRange.setStart(a, 0);
			aRange.setEnd(a, 0);
			bRange.setStart(b, 0);
			bRange.setEnd(b, 0);
			var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
			if (ret === 0)
			{
				hasDuplicate = true;
			}
			return ret;
		};
	}

	(function ()
	{
		var form = document.createElement("div"),
				id = "script" + (new Date).getTime();
		form.innerHTML = "<a name='" + id + "'/>";

		var root = document.documentElement;
		root.insertBefore(form, root.firstChild);

		if (!!document.getElementById(id))
		{
			Expr.find.ID = function (match, context, isXML)
			{
				if (typeof context.getElementById !== "undefined" && !isXML)
				{
					var m = context.getElementById(match[1]);
					return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
				}
			};

			Expr.filter.ID = function (elem, match)
			{
				var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
				return elem.nodeType === 1 && node && node.nodeValue === match;
			};
		}

		root.removeChild(form);
		root = form = null; // release memory in IE
	})();

	(function ()
	{

		var div = document.createElement("div");
		div.appendChild(document.createComment(""));

		if (div.getElementsByTagName("*").length > 0)
		{
			Expr.find.TAG = function (match, context)
			{
				var results = context.getElementsByTagName(match[1]);

				if (match[1] === "*")
				{
					var tmp = [];

					for (var i = 0; results[i]; i++)
					{
						if (results[i].nodeType === 1)
						{
							tmp.push(results[i]);
						}
					}

					results = tmp;
				}

				return results;
			};
		}

		div.innerHTML = "<a href='#'></a>";
		if (div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
				div.firstChild.getAttribute("href") !== "#")
		{
			Expr.attrHandle.href = function (elem)
			{
				return elem.getAttribute("href", 2);
			};
		}

		div = null; // release memory in IE
	})();

	if (document.querySelectorAll) (function ()
	{
		var oldSizzle = Sizzle, div = document.createElement("div");
		div.innerHTML = "<p class='TEST'></p>";

		if (div.querySelectorAll && div.querySelectorAll(".TEST").length === 0)
		{
			return;
		}

		Sizzle = function (query, context, extra, seed)
		{
			context = context || document;

			if (!seed && context.nodeType === 9 && !isXML(context))
			{
				try
				{
					return makeArray(context.querySelectorAll(query), extra);
				}
				catch (e)
				{
				}
			}

			return oldSizzle(query, context, extra, seed);
		};

		for (var prop in oldSizzle)
		{
			Sizzle[ prop ] = oldSizzle[ prop ];
		}

		div = null; // release memory in IE
	})();

	if (document.getElementsByClassName && document.documentElement.getElementsByClassName) (function ()
	{
		var div = document.createElement("div");
		div.innerHTML = "<div class='test e'></div><div class='test'></div>";

		if (div.getElementsByClassName("e").length === 0)
			return;

		div.lastChild.className = "e";

		if (div.getElementsByClassName("e").length === 1)
			return;

		Expr.order.splice(1, 0, "CLASS");
		Expr.find.CLASS = function (match, context, isXML)
		{
			if (typeof context.getElementsByClassName !== "undefined" && !isXML)
			{
				return context.getElementsByClassName(match[1]);
			}
		};

		div = null; // release memory in IE
	})();

	function dirNodeCheck(dir, cur, doneName, checkSet, nodeCheck, isXML)
	{
		var sibDir = dir == "previousSibling" && !isXML;
		for (var i = 0, l = checkSet.length; i < l; i++)
		{
			var elem = checkSet[i];
			if (elem)
			{
				if (sibDir && elem.nodeType === 1)
				{
					elem.sizcache = doneName;
					elem.sizset = i;
				}
				elem = elem[dir];
				var match = false;

				while (elem)
				{
					if (elem.sizcache === doneName)
					{
						match = checkSet[elem.sizset];
						break;
					}

					if (elem.nodeType === 1 && !isXML)
					{
						elem.sizcache = doneName;
						elem.sizset = i;
					}

					if (elem.nodeName === cur)
					{
						match = elem;
						break;
					}

					elem = elem[dir];
				}

				checkSet[i] = match;
			}
		}
	}

	function dirCheck(dir, cur, doneName, checkSet, nodeCheck, isXML)
	{
		var sibDir = dir == "previousSibling" && !isXML;
		for (var i = 0, l = checkSet.length; i < l; i++)
		{
			var elem = checkSet[i];
			if (elem)
			{
				if (sibDir && elem.nodeType === 1)
				{
					elem.sizcache = doneName;
					elem.sizset = i;
				}
				elem = elem[dir];
				var match = false;

				while (elem)
				{
					if (elem.sizcache === doneName)
					{
						match = checkSet[elem.sizset];
						break;
					}

					if (elem.nodeType === 1)
					{
						if (!isXML)
						{
							elem.sizcache = doneName;
							elem.sizset = i;
						}
						if (typeof cur !== "string")
						{
							if (elem === cur)
							{
								match = true;
								break;
							}

						} else if (Sizzle.filter(cur, [elem]).length > 0)
						{
							match = elem;
							break;
						}
					}

					elem = elem[dir];
				}

				checkSet[i] = match;
			}
		}
	}

	var contains = document.compareDocumentPosition ? function (a, b)
	{
		return a.compareDocumentPosition(b) & 16;
	} : function (a, b)
	{
		return a !== b && (a.contains ? a.contains(b) : true);
	};

	var isXML = function (elem)
	{
		return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
				!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
	};

	var posProcess = function (selector, context)
	{
		var tmpSet = [], later = "", match,
				root = context.nodeType ? [context] : context;

		while ((match = Expr.match.PSEUDO.exec(selector)))
		{
			later += match[0];
			selector = selector.replace(Expr.match.PSEUDO, "");
		}

		selector = Expr.relative[selector] ? selector + "*" : selector;

		for (var i = 0, l = root.length; i < l; i++)
		{
			Sizzle(selector, root[i], tmpSet);
		}

		return Sizzle.filter(later, tmpSet);
	};

	window.Sizzle = Sizzle;

})();

;
(function (engine)
{
	var extendElements = Prototype.Selector.extendElements;

	function select(selector, scope)
	{
		return extendElements(engine(selector, scope || document));
	}

	function match(element, selector)
	{
		return engine.matches(selector, [element]).length == 1;
	}

	Prototype.Selector.engine = engine;
	Prototype.Selector.select = select;
	Prototype.Selector.match = match;
})(Sizzle);

window.Sizzle = Prototype._original_property;
delete Prototype._original_property;

var Form = {
	reset:function (form)
	{
		form = $(form);
		form.reset();
		return form;
	},

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

		if (options.hash)
		{
			initial = {};
			accumulator = function (result, key, value)
			{
				if (key in result)
				{
					if (!Object.isArray(result[key])) result[key] = [result[key]];
					result[key].push(value);
				}
				else result[key] = value;
				return result;
			};
		}
		else
		{
			initial = '';
			accumulator = function (result, key, value)
			{
				return result + (result ? '&' : '') + encodeURIComponent(key) + '=' + encodeURIComponent(value);
			}
		}

		return elements.inject(initial, function (result, element)
		{
			if (!element.disabled && element.name)
			{
				key = element.name;
				value = $(element).getValue();
				if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
						submit !== false && (!submit || key == submit) && (submitted = true))))
				{
					result = accumulator(result, key, value);
				}
			}
			return result;
		});
	}
};

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

	getElements:function (form)
	{
		var elements = $(form).getElementsByTagName('*'),
				element,
				arr = [ ],
				serializers = Form.Element.Serializers;
		for (var i = 0; element = elements[i]; i++)
		{
			arr.push(element);
		}
		return arr.inject([], function (elements, child)
		{
			if (serializers[child.tagName.toLowerCase()])
				elements.push(Element.extend(child));
			return elements;
		})
	},

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

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

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

		return matchingInputs;
	},

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

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

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

		return firstByIndex ? firstByIndex : elements.find(function (element)
		                                                   {
			                                                   return /^(?:input|select|textarea)$/i.test(element.tagName);
		                                                   });
	},

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

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

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

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

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

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

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

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

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

Form.Element.Methods = {

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

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

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

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

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

	activate:function (element)
	{
		element = $(element);
		try
		{
			element.focus();
			if (element.select && (element.tagName.toLowerCase() != 'input' ||
					!(/^(?:button|reset|submit)$/i.test(element.type))))
				element.select();
		}
		catch (e)
		{
		}
		return element;
	},

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

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

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

var Field = Form.Element;

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

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

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

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

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

	function select(element, value)
	{
		if (Object.isUndefined(value))
			return (element.type === 'select-one' ? selectOne : selectMany)(element);

		var opt, currentValue, single = !Object.isArray(value);
		for (var i = 0, length = element.length; i < length; i++)
		{
			opt = element.options[i];
			currentValue = this.optionValue(opt);
			if (single)
			{
				if (currentValue == value)
				{
					opt.selected = true;
					return;
				}
			}
			else opt.selected = value.include(currentValue);
		}
	}

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

	function selectMany(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(optionValue(opt));
		}
		return values;
	}

	function optionValue(opt)
	{
		return Element.hasAttribute(opt, 'value') ? opt.value : opt.text;
	}

	return {
		input:input,
		inputSelector:inputSelector,
		textarea:valueSelector,
		select:select,
		selectOne:selectOne,
		selectMany:selectMany,
		optionValue:optionValue,
		button:valueSelector
	};
})();

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		cache:{}
	};

	var docEl = document.documentElement;
	var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
			&& 'onmouseleave' in docEl;

	var isIELegacyEvent = function (event)
	{
		return false;
	};

	if (window.attachEvent)
	{
		if (window.addEventListener)
		{
			isIELegacyEvent = function (event)
			{
				return !(event instanceof window.Event);
			};
		}
		else
		{
			isIELegacyEvent = function (event)
			{
				return true;
			};
		}
	}

	var _isButton;

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

	var legacyButtonMap = { 0:1, 1:4, 2:2 };

	function _isButtonForLegacyEvents(event, code)
	{
		return event.button === legacyButtonMap[code];
	}

	function _isButtonForWebKit(event, code)
	{
		switch (code)
		{
			case 0:
				return event.which == 1 && !event.metaKey;
			case 1:
				return event.which == 2 || (event.which == 1 && event.metaKey);
			case 2:
				return event.which == 3;
			default:
				return false;
		}
	}

	if (window.attachEvent)
	{
		if (!window.addEventListener)
		{
			_isButton = _isButtonForLegacyEvents;
		}
		else
		{
			_isButton = function (event, code)
			{
				return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) :
				       _isButtonForDOMEvents(event, code);
			}
		}
	} else if (Prototype.Browser.WebKit)
	{
		_isButton = _isButtonForWebKit;
	}
	else
	{
		_isButton = _isButtonForDOMEvents;
	}

	function isLeftClick(event)
	{
		return _isButton(event, 0)
	}

	function isMiddleClick(event)
	{
		return _isButton(event, 1)
	}

	function isRightClick(event)
	{
		return _isButton(event, 2)
	}

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

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

		if (currentTarget && currentTarget.tagName)
		{
			if (type === 'load' || type === 'error' ||
					(type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
							&& currentTarget.type === 'radio'))
				node = currentTarget;
		}

		if (node.nodeType == Node.TEXT_NODE)
			node = node.parentNode;

		return Element.extend(node);
	}

	function findElement(event, expression)
	{
		var element = Event.element(event);

		if (!expression) return element;
		while (element)
		{
			if (Object.isElement(element) && Prototype.Selector.match(element, expression))
			{
				return Element.extend(element);
			}
			element = element.parentNode;
		}
	}

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

	function pointerX(event)
	{
		var docElement = document.documentElement,
				body = document.body || { scrollLeft:0 };

		return event.pageX || (event.clientX +
				(docElement.scrollLeft || body.scrollLeft) -
				(docElement.clientLeft || 0));
	}

	function pointerY(event)
	{
		var docElement = document.documentElement,
				body = document.body || { scrollTop:0 };

		return  event.pageY || (event.clientY +
				(docElement.scrollTop || body.scrollTop) -
				(docElement.clientTop || 0));
	}

	function stop(event)
	{
		Event.extend(event);
		event.preventDefault();
		event.stopPropagation();

		event.stopped = true;
	}

	Event.Methods = {
		isLeftClick:isLeftClick,
		isMiddleClick:isMiddleClick,
		isRightClick:isRightClick,

		element:element,
		findElement:findElement,

		pointer:pointer,
		pointerX:pointerX,
		pointerY:pointerY,

		stop:stop
	};

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

	if (window.attachEvent)
	{
		function _relatedTarget(event)
		{
			var element;
			switch (event.type)
			{
				case 'mouseover':
				case 'mouseenter':
					element = event.fromElement;
					break;
				case 'mouseout':
				case 'mouseleave':
					element = event.toElement;
					break;
				default:
					return null;
			}
			return Element.extend(element);
		}

		var additionalMethods = {
			stopPropagation:function ()
			{
				this.cancelBubble = true
			},
			preventDefault:function ()
			{
				this.returnValue = false
			},
			inspect:function ()
			{
				return '[object Event]'
			}
		};

		Event.extend = function (event, element)
		{
			if (!event) return false;

			if (!isIELegacyEvent(event)) return event;

			if (event._extendedByPrototype) return event;
			event._extendedByPrototype = Prototype.emptyFunction;

			var pointer = Event.pointer(event);

			Object.extend(event, {
				target:event.srcElement || element,
				relatedTarget:_relatedTarget(event),
				pageX:pointer.x,
				pageY:pointer.y
			});

			Object.extend(event, methods);
			Object.extend(event, additionalMethods);

			return event;
		};
	}
	else
	{
		Event.extend = Prototype.K;
	}

	if (window.addEventListener)
	{
		Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
		Object.extend(Event.prototype, methods);
	}

	function _createResponder(element, eventName, handler)
	{
		var registry = Element.retrieve(element, 'prototype_event_registry');

		if (Object.isUndefined(registry))
		{
			CACHE.push(element);
			registry = Element.retrieve(element, 'prototype_event_registry', $H());
		}

		var respondersForEvent = registry.get(eventName);
		if (Object.isUndefined(respondersForEvent))
		{
			respondersForEvent = [];
			registry.set(eventName, respondersForEvent);
		}

		if (respondersForEvent.pluck('handler').include(handler)) return false;

		var responder;
		if (eventName.include(":"))
		{
			responder = function (event)
			{
				if (Object.isUndefined(event.eventName))
					return false;

				if (event.eventName !== eventName)
					return false;

				Event.extend(event, element);
				handler.call(element, event);
			};
		}
		else
		{
			if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
					(eventName === "mouseenter" || eventName === "mouseleave"))
			{
				if (eventName === "mouseenter" || eventName === "mouseleave")
				{
					responder = function (event)
					{
						Event.extend(event, element);

						var parent = event.relatedTarget;
						while (parent && parent !== element)
						{
							try
							{
								parent = parent.parentNode;
							}
							catch (e)
							{
								parent = element;
							}
						}

						if (parent === element) return;

						handler.call(element, event);
					};
				}
			}
			else
			{
				responder = function (event)
				{
					Event.extend(event, element);
					handler.call(element, event);
				};
			}
		}

		responder.handler = handler;
		respondersForEvent.push(responder);
		return responder;
	}

	function _destroyCache()
	{
		for (var i = 0, length = CACHE.length; i < length; i++)
		{
			Event.stopObserving(CACHE[i]);
			CACHE[i] = null;
		}
	}

	var CACHE = [];

	if (Prototype.Browser.IE)
		window.attachEvent('onunload', _destroyCache);

	if (Prototype.Browser.WebKit)
		window.addEventListener('unload', Prototype.emptyFunction, false);

	var _getDOMEventName = Prototype.K,
			translations = { mouseenter:"mouseover", mouseleave:"mouseout" };

	if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED)
	{
		_getDOMEventName = function (eventName)
		{
			return (translations[eventName] || eventName);
		};
	}

	function observe(element, eventName, handler)
	{
		element = $(element);

		var responder = _createResponder(element, eventName, handler);

		if (!responder) return element;

		if (eventName.include(':'))
		{
			if (element.addEventListener)
				element.addEventListener("dataavailable", responder, false);
			else
			{
				element.attachEvent("ondataavailable", responder);
				element.attachEvent("onlosecapture", responder);
			}
		}
		else
		{
			var actualEventName = _getDOMEventName(eventName);

			if (element.addEventListener)
				element.addEventListener(actualEventName, responder, false);
			else
				element.attachEvent("on" + actualEventName, responder);
		}

		return element;
	}

	function stopObserving(element, eventName, handler)
	{
		element = $(element);

		var registry = Element.retrieve(element, 'prototype_event_registry');
		if (!registry) return element;

		if (!eventName)
		{
			registry.each(function (pair)
			              {
				              var eventName = pair.key;
				              stopObserving(element, eventName);
			              });
			return element;
		}

		var responders = registry.get(eventName);
		if (!responders) return element;

		if (!handler)
		{
			responders.each(function (r)
			                {
				                stopObserving(element, eventName, r.handler);
			                });
			return element;
		}

		var i = responders.length, responder;
		while (i--)
		{
			if (responders[i].handler === handler)
			{
				responder = responders[i];
				break;
			}
		}
		if (!responder) return element;

		if (eventName.include(':'))
		{
			if (element.removeEventListener)
				element.removeEventListener("dataavailable", responder, false);
			else
			{
				element.detachEvent("ondataavailable", responder);
				element.detachEvent("onlosecapture", responder);
			}
		}
		else
		{
			var actualEventName = _getDOMEventName(eventName);
			if (element.removeEventListener)
				element.removeEventListener(actualEventName, responder, false);
			else
				element.detachEvent('on' + actualEventName, responder);
		}

		registry.set(eventName, responders.without(responder));

		return element;
	}

	function fire(element, eventName, memo, bubble)
	{
		element = $(element);

		if (Object.isUndefined(bubble))
			bubble = true;

		if (element == document && document.createEvent && !element.dispatchEvent)
			element = document.documentElement;

		var event;
		if (document.createEvent)
		{
			event = document.createEvent('HTMLEvents');
			event.initEvent('dataavailable', bubble, true);
		}
		else
		{
			event = document.createEventObject();
			event.eventType = bubble ? 'ondataavailable' : 'onlosecapture';
		}

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

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

		return Event.extend(event);
	}

	Event.Handler = Class.create({
		                             initialize:function (element, eventName, selector, callback)
		                             {
			                             this.element = $(element);
			                             this.eventName = eventName;
			                             this.selector = selector;
			                             this.callback = callback;
			                             this.handler = this.handleEvent.bind(this);
		                             },

		                             start:function ()
		                             {
			                             Event.observe(this.element, this.eventName, this.handler);
			                             return this;
		                             },

		                             stop:function ()
		                             {
			                             Event.stopObserving(this.element, this.eventName, this.handler);
			                             return this;
		                             },

		                             handleEvent:function (event)
		                             {
			                             var element = Event.findElement(event, this.selector);
			                             if (element) this.callback.call(this.element, event, element);
		                             }
	                             });

	function on(element, eventName, selector, callback)
	{
		element = $(element);
		if (Object.isFunction(selector) && Object.isUndefined(callback))
		{
			callback = selector, selector = null;
		}

		return new Event.Handler(element, eventName, selector, callback).start();
	}

	Object.extend(Event, Event.Methods);

	Object.extend(Event, {
		fire:fire,
		observe:observe,
		stopObserving:stopObserving,
		on:on
	});

	Element.addMethods({
		                   fire:fire,

		                   observe:observe,

		                   stopObserving:stopObserving,

		                   on:on
	                   });

	Object.extend(document, {
		fire:fire.methodize(),

		observe:observe.methodize(),

		stopObserving:stopObserving.methodize(),

		on:on.methodize(),

		loaded:false
	});

	if (window.Event) Object.extend(window.Event, Event);
	else window.Event = Event;
})();

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

	var timer;

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

	function checkReadyState()
	{
		if (document.readyState === 'complete')
		{
			document.stopObserving('readystatechange', checkReadyState);
			fireContentLoadedEvent();
		}
	}

	function pollDoScroll()
	{
		try
		{
			document.documentElement.doScroll('left');
		}
		catch (e)
		{
			timer = pollDoScroll.defer();
			return;
		}
		fireContentLoadedEvent();
	}

	if (document.addEventListener)
	{
		document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
	}
	else
	{
		document.observe('readystatechange', checkReadyState);
		if (window == top)
			timer = pollDoScroll.defer();
	}

	Event.observe(window, 'load', fireContentLoadedEvent);
})();

Element.addMethods();

/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display:Element.toggle };

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

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

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

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

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

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

var Position = {
	includeScrollOffsets:false,

	prepare:function ()
	{
		this.deltaX = window.pageXOffset
				|| document.documentElement.scrollLeft
				|| document.body.scrollLeft
				|| 0;
		this.deltaY = window.pageYOffset
				|| document.documentElement.scrollTop
				|| document.body.scrollTop
				|| 0;
	},

	within:function (element, x, y)
	{
		if (this.includeScrollOffsets)
			return this.withinIncludingScrolloffsets(element, x, y);
		this.xcomp = x;
		this.ycomp = y;
		this.offset = Element.cumulativeOffset(element);

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

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

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

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

	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;
	},

	cumulativeOffset:Element.Methods.cumulativeOffset,

	positionedOffset:Element.Methods.positionedOffset,

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

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

	realOffset:Element.Methods.cumulativeScrollOffset,

	offsetParent:Element.Methods.getOffsetParent,

	page:Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

(function ()
{
	window.Selector = Class.create({
		                               initialize:function (expression)
		                               {
			                               this.expression = expression.strip();
		                               },

		                               findElements:function (rootElement)
		                               {
			                               return Prototype.Selector.select(this.expression, rootElement);
		                               },

		                               match:function (element)
		                               {
			                               return Prototype.Selector.match(element, this.expression);
		                               },

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

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

	Object.extend(Selector, {
		matchElements:function (elements, expression)
		{
			var match = Prototype.Selector.match,
					results = [];

			for (var i = 0, length = elements.length; i < length; i++)
			{
				var element = elements[i];
				if (match(element, expression))
				{
					results.push(Element.extend(element));
				}
			}
			return results;
		},

		findElement:function (elements, expression, index)
		{
			index = index || 0;
			var matchIndex = 0, element;
			for (var i = 0, length = elements.length; i < length; i++)
			{
				element = elements[i];
				if (Prototype.Selector.match(element, expression) && index === matchIndex++)
				{
					return Element.extend(element);
				}
			}
		},

		findChildElements:function (element, expressions)
		{
			var selector = expressions.toArray().join(', ');
			return Prototype.Selector.select(selector, element || document);
		}
	});
})();// script.aculo.us scriptaculous.js v1.8.0, Tue Nov 06 15:01:40 +0300 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: '1.8.0',
	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: '1.6.0',
	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 v1.8.0, Tue Nov 06 15:01:40 +0300 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)
	{
	}
};

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

var Effect = {
	_elementDoesNotExistError: {
		name: 'ElementDoesNotExistError',
		message: 'The specified DOM element does not exist, but is required for this effect to operate'
	},
	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 (
					((pos % (1 / pulses)) * pulses).round() == 0 ?
					((pos * pulses * 2) - (pos * pulses * 2).floor()) :
					1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
					);
		},
		spring: function(pos)
		{
			return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
		},
		none: function(pos)
		{
			return 0;
		},
		full: function(pos)
		{
			return 1;
		}
	},
	DefaultOptions: {
		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'
	},
	tagifyText: function(element)
	{
		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(
							new Element('span', {style: tagifyStyle}).update(
									character == ' ' ? String.fromCharCode(160) : character),
							child);
				});
				Element.remove(child);
			}
		});
	},
	multiple: function(element, effect)
	{
		var elements;
		if (((typeof element == 'object') ||
		     Object.isFunction(element)) &&
		    (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);
	}
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

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

Effect.ScopedQueue = Class.create(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 = Object.isString(effect.options.queue) ?
		               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 (!Object.isString(queueName)) return queueName;

		return this.instances.get(queueName) ||
		       this.instances.set(queueName, new Effect.ScopedQueue());
	}
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
	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 && 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(this.options, 'beforeSetup') +
		     (this.setup ? 'this.setup();' : '') +
		     codeForEvent(this.options, 'afterSetup') +
		     '};if (this.state=="running"){' +
		     'pos=this.options.transition(pos)*' + this.fromToDelta + '+' + this.options.from + ';' +
		     'this.position=pos;' +
		     codeForEvent(this.options, 'beforeUpdate') +
		     (this.update ? 'this.update(pos);' : '') +
		     codeForEvent(this.options, 'afterUpdate') +
		     '}}');

		this.event('beforeStart');
		if (!this.options.sync)
			Effect.Queues.get(Object.isString(this.options.queue) ?
			                  '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 = (pos * this.totalFrames).round();
			if (frame > this.currentFrame)
			{
				this.render(pos);
				this.currentFrame = frame;
			}
		}
	},
	cancel: function()
	{
		if (!this.options.sync)
			Effect.Queues.get(Object.isString(this.options.queue) ?
			                  '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 (!Object.isFunction(this[property])) data.set(property, this[property]);
		return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
	}
});

Effect.Parallel = Class.create(Effect.Base, {
	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.Tween = Class.create(Effect.Base, {
	initialize: function(object, from, to)
	{
		object = Object.isString(object) ? $(object) : object;
		var args = $A(arguments), method = args.last(),
				options = args.length == 5 ? args[3] : null;
		this.method = Object.isFunction(method) ? method.bind(object) :
		              Object.isFunction(object[method]) ? object[method].bind(object) :
		              function(value)
		              {
			              object[method] = value
		              };
		this.start(Object.extend({ from: from, to: to }, options || { }));
	},
	update: function(position)
	{
		this.method(position);
	}
});

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

Effect.Opacity = Class.create(Effect.Base, {
	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(Effect.Base, {
	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()
	{
		this.element.makePositioned();
		this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
		this.originalTop = parseFloat(this.element.getStyle('top') || '0');
		if (this.options.mode == 'absolute')
		{
			this.options.x = this.options.x - this.originalLeft;
			this.options.y = this.options.y - this.originalTop;
		}
	},
	update: function(position)
	{
		this.element.setStyle({
			left: (this.options.x * position + this.originalLeft).round() + 'px',
			top:  (this.options.y * position + this.originalTop).round() + '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(Effect.Base, {
	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 = width.round() + 'px';
		if (this.options.scaleY) d.height = height.round() + '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(Effect.Base, {
	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 + ((this._base[i] + (this._delta[i] * position)).round().toColorPart());
		}.bind(this)) });
	},
	finish: function()
	{
		this.element.setStyle(Object.extend(this.oldStyle, {
			backgroundColor: this.options.restorecolor
		}));
	}
});

Effect.ScrollTo = function(element)
{
	var options = arguments[1] || { },
			scrollOffsets = document.viewport.getScrollOffsets(),
			elementOffsets = $(element).cumulativeOffset(),
			max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();

	if (options.offset) elementOffsets[1] += options.offset;

	return new Effect.Tween(null,
			scrollOffsets.top,
			elementOffsets[1] > max ? max : elementOffsets[1],
			options,
			function(p)
			{
				scrollTo(scrollOffsets.left, p.round())
			}
			);
};

/* ------------- 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 options = Object.extend({
		distance: 20,
		duration: 0.5
	}, arguments[1] || {});
	var distance = parseFloat(options.distance);
	var split = parseFloat(options.duration) / 10.0;
	var oldStyle = {
		top: element.getStyle('top'),
		left: element.getStyle('left') };
	return new Effect.Move(element,
	{ x:  distance, y: 0, duration: split, afterFinishInternal: function(effect)
	{
		new Effect.Move(effect.element,
		{ x: -distance * 2, y: 0, duration: split * 2,  afterFinishInternal: function(effect)
		{
			new Effect.Move(effect.element,
			{ x:  distance * 2, y: 0, duration: split * 2,  afterFinishInternal: function(effect)
			{
				new Effect.Move(effect.element,
				{ x: -distance * 2, y: 0, duration: split * 2,  afterFinishInternal: function(effect)
				{
					new Effect.Move(effect.element,
					{ x:  distance * 2, y: 0, duration: split * 2,  afterFinishInternal: function(effect)
					{
						new Effect.Move(effect.element,
						{ x: -distance, y: 0, duration: split, 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');
	var elementDimensions = element.getDimensions();
	return new Effect.Scale(element, window.opera ? 0 : 1,
			Object.extend({ scaleContent: false,
				scaleX: false,
				scaleMode: 'box',
				scaleFrom: 100,
				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().show();
				},
				afterUpdateInternal: function(effect)
				{
					effect.element.down().setStyle({bottom:
							(effect.dims[0] - effect.element.clientHeight) + 'px' });
				},
				afterFinishInternal: function(effect)
				{
					effect.element.hide().undoClipping().undoPositioned();
					effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
				}
			}, 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(Effect.Base, {
	initialize: function(element)
	{
		this.element = $(element);
		if (!this.element) throw(Effect._elementDoesNotExistError);
		var options = Object.extend({
			style: { }
		}, arguments[1] || { });

		if (!Object.isString(options.style)) this.style = $H(options.style);
		else
		{
			if (options.style.include(':'))
				this.style = options.style.parseStyle();
			else
			{
				this.element.addClassName(options.style);
				this.style = $H(this.element.getStyles());
				this.element.removeClassName(options.style);
				var css = this.element.getStyles();
				this.style = this.style.reject(function(style)
				{
					return style.value == css[style.key];
				});
				options.afterFinishInternal = function(effect)
				{
					effect.element.addClassName(effect.options.style);
					effect.transforms.each(function(transform)
					{
						effect.element.style[transform.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 +
			 (transform.targetValue - transform.originalValue) * position).toFixed(3) +
			(transform.unit === null ? '' : transform.unit);
		this.element.setStyle(style, true);
	}
});

Effect.Transform = Class.create({
	initialize: function(tracks)
	{
		this.tracks = [];
		this.options = arguments[1] || { };
		this.addTracks(tracks);
	},
	addTracks: function(tracks)
	{
		tracks.each(function(track)
		{
			track = $H(track);
			var data = track.values().first();
			this.tracks.push($H({
				ids:     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 ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
					var elements = [$(ids) || $$(ids)].flatten();
					return elements.map(function(e)
					{
						return new effect(e, Object.extend({ sync:true }, 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.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function()
{
	var style, styleRules = $H();
	if (Prototype.Browser.WebKit)
		style = new Element('div', {style:this}).style;
	else
	{
		String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
		style = String.__parseStyleElement.childNodes[0].style;
	}

	Element.CSS_PROPERTIES.each(function(property)
	{
		if (style[property]) styleRules.set(property, style[property]);
	});

	if (Prototype.Browser.IE && this.include('opacity'))
		styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

	return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle)
{
	Element.getStyles = function(element)
	{
		var css = document.defaultView.getComputedStyle($(element), null);
		return Element.CSS_PROPERTIES.inject({ }, function(styles, property)
		{
			styles[property] = css[property];
			return styles;
		});
	};
}
else
{
	Element.getStyles = function(element)
	{
		element = $(element);
		var css = element.currentStyle, styles;
		styles = Element.CSS_PROPERTIES.inject({ }, function(hash, property)
		{
			hash.set(property, css[property]);
			return hash;
		});
		if (!styles.opacity) styles.set('opacity', element.getOpacity());
		return styles;
	};
}
;

Effect.Methods = {
	morph: function(element, style)
	{
		element = $(element);
		new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
		return element;
	},
	visualEffect: function(element, effect, options)
	{
		element = $(element)
		var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
		new Effect[klass](element, options);
		return element;
	},
	highlight: function(element, options)
	{
		element = $(element);
		new Effect.Highlight(element, options);
		return element;
	}
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown ' +
   'pulsate shake puff squish switchOff dropOut').each(
		function(effect)
		{
			Effect.Methods[effect] = function(element, options)
			{
				element = $(element);
				Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
				return element;
			}
		}
		);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(
		function(f)
		{
			Effect.Methods[f] = Element[f];
		}
		);

Element.addMethods(Effect.Methods);
// script.aculo.us dragdrop.js v1.8.0, Tue Nov 06 15:01:40 +0300 2007

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

if (Object.isUndefined(Effect))
	throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
	drops: [],

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

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

    // cache containers
		if (options.containment)
		{
			options._containers = [];
			var containment = options.containment;
			if (Object.isArray(containment))
			{
				containment.each(function(c)
				{
					options._containers.push($(c))
				});
			}
			else
			{
				options._containers.push($(containment));
			}
		}

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

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

		this.drops.push(options);
	},

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

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

		return deepest;
	},

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

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

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

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

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

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

		if (affected.length > 0)
			drop = Droppables.findDeepestChild(affected);

		if (this.last_active && this.last_active != drop) this.deactivate(this.last_active);
		if (drop)
		{
			Position.within(drop.element, point[0], point[1]);
			if (drop.onHover)
				drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

			if (drop != this.last_active) Droppables.activate(drop);
		}
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		this.element = $(element);

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

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

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

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

		this.options = options;
		this.dragging = false;

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

		Draggables.register(this);
	},

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

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

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

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

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

	startDrag: function(event)
	{
		this.dragging = true;
		if (!this.delta)
			this.delta = this.currentDelta();

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

		if (this.options.ghosting)
		{
			this._clone = this.element.cloneNode(true);
			this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
			if (!this.element._originallyAbsolute)
				Position.absolutize(this.element);
			this.element.parentNode.insertBefore(this._clone, this.element);
		}

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

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

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

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

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

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

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

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

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

		Event.stop(event);
	},

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

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

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

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

		var revert = this.options.revert;
		if (revert && Object.isFunction(revert)) revert = revert(this.element);

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

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

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

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

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

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

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

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

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

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

		if (this.options.snap)
		{
			if (Object.isFunction(this.options.snap))
			{
				p = this.options.snap(p[0], p[1], this);
			}
			else
			{
				if (Object.isArray(this.options.snap))
				{
					p = p.map(function(v, i)
					{
						return (v / this.options.snap[i]).round() * this.options.snap[i]
					}.bind(this))
				}
				else
				{
					p = p.map(function(v)
					{
						return (v / this.options.snap).round() * this.options.snap
					}.bind(this))
				}
			}
		}

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

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

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

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

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

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

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

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

Draggable._dragging = { };

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

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

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

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

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

	sortables: { },

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

	options: function(element)
	{
		element = Sortable._findRootElement($(element));
		if (!element) return;
		return Sortable.sortables[element.id];
	},

	destroy: function(element)
	{
		var s = Sortable.options(element);

		if (s)
		{
			Draggables.removeObserver(s.element);
			s.droppables.each(function(d)
			{
				Droppables.remove(d)
			});
			s.draggables.invoke('destroy');

			delete Sortable.sortables[s.element.id];
		}
	},

	create: function(element)
	{
		element = $(element);
		var options = Object.extend({
			element:     element,
			tag:         'li',       // assumes li children, override with tag: 'tagname'
			dropOnEmpty: false,
			tree:        false,
			treeTag:     'ul',
			overlap:     'vertical', // one of 'vertical', 'horizontal'
			constraint:  'vertical', // one of 'vertical', 'horizontal', false
			containment: element,    // also takes array of elements (or id's); or false
			handle:      false,      // or a CSS class
			only:        false,
			delay:       0,
			hoverclass:  null,
			ghosting:    false,
			quiet:       false,
			scroll:      false,
			scrollSensitivity: 20,
			scrollSpeed: 15,
			format:      this.SERIALIZE_RULE,

			// these take arrays of elements or ids and can be
			// used for better initialization performance
			elements:    false,
			handles:     false,

			onChange:    Prototype.emptyFunction,
			onUpdate:    Prototype.emptyFunction
		}, arguments[1] || { });

    // clear any old sortable with same element
		this.destroy(element);

    // build options for the draggables
		var options_for_draggable = {
			revert:      true,
			quiet:       options.quiet,
			scroll:      options.scroll,
			scrollSpeed: options.scrollSpeed,
			scrollSensitivity: options.scrollSensitivity,
			delay:       options.delay,
			ghosting:    options.ghosting,
			constraint:  options.constraint,
			handle:      options.handle };

		if (options.starteffect)
			options_for_draggable.starteffect = options.starteffect;

		if (options.reverteffect)
			options_for_draggable.reverteffect = options.reverteffect;
		else
			if (options.ghosting) options_for_draggable.reverteffect = function(element)
			{
				element.style.top = 0;
				element.style.left = 0;
			};

		if (options.endeffect)
			options_for_draggable.endeffect = options.endeffect;

		if (options.zindex)
			options_for_draggable.zindex = options.zindex;

    // build options for the droppables  
		var options_for_droppable = {
			overlap:     options.overlap,
			containment: options.containment,
			tree:        options.tree,
			hoverclass:  options.hoverclass,
			onHover:     Sortable.onHover
		}

		var options_for_tree = {
			onHover:      Sortable.onEmptyHover,
			overlap:      options.overlap,
			containment:  options.containment,
			hoverclass:   options.hoverclass
		}

    // fix for gecko engine
		Element.cleanWhitespace(element);

		options.draggables = [];
		options.droppables = [];

    // drop on empty handling
		if (options.dropOnEmpty || options.tree)
		{
			Droppables.add(element, options_for_tree);
			options.droppables.push(element);
		}

		(options.elements || this.findElements(element, options) || []).each(function(e, i)
		{
			var handle = options.handles ? $(options.handles[i]) :
			             (options.handle ? $(e).select('.' + options.handle)[0] : e);
			options.draggables.push(
					new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
			Droppables.add(e, options_for_droppable);
			if (options.tree) e.treeNode = element;
			options.droppables.push(e);
		});

		if (options.tree)
		{
			(Sortable.findTreeElements(element, options) || []).each(function(e)
			{
				Droppables.add(e, options_for_tree);
				e.treeNode = element;
				options.droppables.push(e);
			});
		}

    // keep reference
		this.sortables[element.id] = options;

    // for onupdate
		Draggables.addObserver(new SortableObserver(element, options.onUpdate));

	},

	// return all suitable-for-sortable elements in a guaranteed order
	findElements: function(element, options)
	{
		return Element.findChildren(
				element, options.only, options.tree ? true : false, options.tag);
	},

	findTreeElements: function(element, options)
	{
		return Element.findChildren(
				element, options.only, options.tree ? true : false, options.treeTag);
	},

	onHover: function(element, dropon, overlap)
	{
		if (Element.isParent(dropon, element)) return;

		if (overlap > .33 && overlap < .66 && Sortable.options(dropon).tree)
		{
			return;
		}
		else if (overlap > 0.5)
		{
			Sortable.mark(dropon, 'before');
			if (dropon.previousSibling != element)
			{
				var oldParentNode = element.parentNode;
				element.style.visibility = "hidden"; // fix gecko rendering
				dropon.parentNode.insertBefore(element, dropon);
				if (dropon.parentNode != oldParentNode)
					Sortable.options(oldParentNode).onChange(element);
				Sortable.options(dropon.parentNode).onChange(element);
			}
		}
		else
		{
			Sortable.mark(dropon, 'after');
			var nextElement = dropon.nextSibling || null;
			if (nextElement != element)
			{
				var oldParentNode = element.parentNode;
				element.style.visibility = "hidden"; // fix gecko rendering
				dropon.parentNode.insertBefore(element, nextElement);
				if (dropon.parentNode != oldParentNode)
					Sortable.options(oldParentNode).onChange(element);
				Sortable.options(dropon.parentNode).onChange(element);
			}
		}
	},

	onEmptyHover: function(element, dropon, overlap)
	{
		var oldParentNode = element.parentNode;
		var droponOptions = Sortable.options(dropon);

		if (!Element.isParent(dropon, element))
		{
			var index;

			var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
			var child = null;

			if (children)
			{
				var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

				for (index = 0; index < children.length; index += 1)
				{
					if (offset - Element.offsetSize(children[index], droponOptions.overlap) >= 0)
					{
						offset -= Element.offsetSize(children[index], droponOptions.overlap);
					}
					else if (offset - (Element.offsetSize(children[index], droponOptions.overlap) / 2) >= 0)
					{
						child = index + 1 < children.length ? children[index + 1] : null;
						break;
					}
					else
					{
						child = children[index];
						break;
					}
				}
			}

			dropon.insertBefore(element, child);

			Sortable.options(oldParentNode).onChange(element);
			droponOptions.onChange(element);
		}
	},

	unmark: function()
	{
		if (Sortable._marker) Sortable._marker.hide();
	},

	mark: function(dropon, position)
	{
		// mark on ghosting only
		var sortable = Sortable.options(dropon.parentNode);
		if (sortable && !sortable.ghosting) return;

		if (!Sortable._marker)
		{
			Sortable._marker =
			($('dropmarker') || Element.extend(document.createElement('DIV'))).
					hide().addClassName('dropmarker').setStyle({position:'absolute'});
			document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
		}
		var offsets = Position.cumulativeOffset(dropon);
		Sortable._marker.setStyle({left: offsets[0] + 'px', top: offsets[1] + 'px'});

		if (position == 'after')
			if (sortable.overlap == 'horizontal')
				Sortable._marker.setStyle({left: (offsets[0] + dropon.clientWidth) + 'px'});
			else
				Sortable._marker.setStyle({top: (offsets[1] + dropon.clientHeight) + 'px'});

		Sortable._marker.show();
	},

	_tree: function(element, options, parent)
	{
		var children = Sortable.findElements(element, options) || [];

		for (var i = 0; i < children.length; ++i)
		{
			var match = children[i].id.match(options.format);

			if (!match) continue;

			var child = {
				id: encodeURIComponent(match ? match[1] : null),
				element: element,
				parent: parent,
				children: [],
				position: parent.children.length,
				container: $(children[i]).down(options.treeTag)
			}

			/* Get the element containing the children and recurse over it */
			if (child.container)
				this._tree(child.container, options, child)

			parent.children.push(child);
		}

		return parent;
	},

	tree: function(element)
	{
		element = $(element);
		var sortableOptions = this.options(element);
		var options = Object.extend({
			tag: sortableOptions.tag,
			treeTag: sortableOptions.treeTag,
			only: sortableOptions.only,
			name: element.id,
			format: sortableOptions.format
		}, arguments[1] || { });

		var root = {
			id: null,
			parent: null,
			children: [],
			container: element,
			position: 0
		}

		return Sortable._tree(element, options, root);
	},

	/* Construct a [i] index for a particular node */
	_constructIndex: function(node)
	{
		var index = '';
		do {
			if (node.id) index = '[' + node.position + ']' + index;
		}
		while ((node = node.parent) != null);
		return index;
	},

	sequence: function(element)
	{
		element = $(element);
		var options = Object.extend(this.options(element), arguments[1] || { });

		return $(this.findElements(element, options) || []).map(function(item)
		{
			return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
		});
	},

	setSequence: function(element, new_sequence)
	{
		element = $(element);
		var options = Object.extend(this.options(element), arguments[2] || { });

		var nodeMap = { };
		this.findElements(element, options).each(function(n)
		{
			if (n.id.match(options.format))
				nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
			n.parentNode.removeChild(n);
		});

		new_sequence.each(function(ident)
		{
			var n = nodeMap[ident];
			if (n)
			{
				n[1].appendChild(n[0]);
				delete nodeMap[ident];
			}
		});
	},

	serialize: function(element)
	{
		element = $(element);
		var options = Object.extend(Sortable.options(element), arguments[1] || { });
		var name = encodeURIComponent(
				(arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

		if (options.tree)
		{
			return Sortable.tree(element, arguments[1]).children.map(function (item)
			{
				return [name + Sortable._constructIndex(item) + "[id]=" +
				        encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
			}).flatten().join('&');
		}
		else
		{
			return Sortable.sequence(element, arguments[1]).map(function(item)
			{
				return name + "[]=" + encodeURIComponent(item);
			}).join('&');
		}
	}
}

// Returns true if child is contained within element
Element.isParent = function(child, element)
{
	if (!child.parentNode || child == element) return false;
	if (child.parentNode == element) return true;
	return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName)
{
	if (!element.hasChildNodes()) return null;
	tagName = tagName.toUpperCase();
	if (only) only = [only].flatten();
	var elements = [];
	$A(element.childNodes).each(function(e)
	{
		if (e.tagName && e.tagName.toUpperCase() == tagName &&
		    (!only || (Element.classNames(e).detect(function(v)
		    {
			    return only.include(v)
		    }))))
			elements.push(e);
		if (recursive)
		{
			var grandchildren = Element.findChildren(e, only, recursive, tagName);
			if (grandchildren) elements.push(grandchildren);
		}
	});

	return (elements.length > 0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type)
{
	return element['offset' + ((type == 'vertical' || type == 'height') ? 'Height' : 'Width')];
}
// script.aculo.us controls.js v1.8.0, Tue Nov 06 15:01:40 +0300 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
// Contributors:
//  Richard Livsey
//  Rahul Bhargava
//  Rob Wills
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality 
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least, 
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method 
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most 
// useful when one of the tokens is \n (a newline), as it 
// allows smart autocompletion after linebreaks.

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

var Autocompleter = { }
Autocompleter.Base = Class.create({
	baseInitialize: function(element, update, options)
	{
		element = $(element)
		this.element = element;
		this.update = $(update);
		this.hasFocus = false;
		this.changed = false;
		this.active = false;
		this.index = 0;
		this.entryCount = 0;
		this.oldElementValue = this.element.value;

		if (this.setOptions)
			this.setOptions(options);
		else
			this.options = options || { };

		this.options.paramName = this.options.paramName || this.element.name;
		this.options.tokens = this.options.tokens || [];
		this.options.frequency = this.options.frequency || 0.4;
		this.options.minChars = this.options.minChars || 1;
		this.options.onShow = this.options.onShow ||
		                      function(element, update)
		                      {
			                      if (!update.style.position || update.style.position == 'absolute')
			                      {
				                      update.style.position = 'absolute';
				                      Position.clone(element, update, {
					                      setHeight: false,
					                      offsetTop: element.offsetHeight
				                      });
			                      }
			                      Effect.Appear(update, {duration:0.15});
		                      };
		this.options.onHide = this.options.onHide ||
		                      function(element, update)
		                      {
			                      new Effect.Fade(update, {duration:0.15})
		                      };

		if (typeof(this.options.tokens) == 'string')
			this.options.tokens = new Array(this.options.tokens);
    // Force carriage returns as token delimiters anyway
		if (!this.options.tokens.include('\n'))
			this.options.tokens.push('\n');

		this.observer = null;

		this.element.setAttribute('autocomplete', 'off');

		Element.hide(this.update);

		Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
		Event.observe(this.element, 'keypress', this.onKeyPress.bindAsEventListener(this));
	},

	show: function()
	{
		if (Element.getStyle(this.update, 'display') == 'none') this.options.onShow(this.element, this.update);
		if (!this.iefix &&
		    (Prototype.Browser.IE) &&
		    (Element.getStyle(this.update, 'position') == 'absolute'))
		{
			new Insertion.After(this.update,
					'<iframe id="' + this.update.id + '_iefix" ' +
					'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
					'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
			this.iefix = $(this.update.id + '_iefix');
		}
		if (this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
	},

	fixIEOverlapping: function()
	{
		Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
		this.iefix.style.zIndex = 1;
		this.update.style.zIndex = 2;
		Element.show(this.iefix);
	},

	hide: function()
	{
		this.stopIndicator();
		if (Element.getStyle(this.update, 'display') != 'none') this.options.onHide(this.element, this.update);
		if (this.iefix) Element.hide(this.iefix);
	},

	startIndicator: function()
	{
		if (this.options.indicator) Element.show(this.options.indicator);
	},

	stopIndicator: function()
	{
		if (this.options.indicator) Element.hide(this.options.indicator);
	},

	onKeyPress: function(event)
	{
		if (this.active)
			switch (event.keyCode)
					{
				case Event.KEY_TAB:
				case Event.KEY_RETURN:
					this.selectEntry();
					Event.stop(event);
				case Event.KEY_ESC:
					this.hide();
					this.active = false;
					Event.stop(event);
					return;
				case Event.KEY_LEFT:
				case Event.KEY_RIGHT:
					return;
				case Event.KEY_UP:
					this.markPrevious();
					this.render();
					if (Prototype.Browser.WebKit) Event.stop(event);
					return;
				case Event.KEY_DOWN:
					this.markNext();
					this.render();
					if (Prototype.Browser.WebKit) Event.stop(event);
					return;
			}
		else
			if (event.keyCode == Event.KEY_TAB || event.keyCode == Event.KEY_RETURN ||
			    (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

		this.changed = true;
		this.hasFocus = true;

		if (this.observer) clearTimeout(this.observer);
		this.observer =
		setTimeout(this.onObserverEvent.bind(this), this.options.frequency * 1000);
	},

	activate: function()
	{
		this.changed = false;
		this.hasFocus = true;
		this.getUpdatedChoices();
	},

	onHover: function(event)
	{
		var element = Event.findElement(event, 'LI');
		if (this.index != element.autocompleteIndex)
		{
			this.index = element.autocompleteIndex;
			this.render();
		}
		Event.stop(event);
	},

	onClick: function(event)
	{
		var element = Event.findElement(event, 'LI');
		this.index = element.autocompleteIndex;
		this.selectEntry();
		this.hide();
	},

	onBlur: function(event)
	{
		// needed to make click events working
		setTimeout(this.hide.bind(this), 250);
		this.hasFocus = false;
		this.active = false;
	},

	render: function()
	{
		if (this.entryCount > 0)
		{
			for (var i = 0; i < this.entryCount; i++)
				this.index == i ?
				Element.addClassName(this.getEntry(i), "selected") :
				Element.removeClassName(this.getEntry(i), "selected");
			if (this.hasFocus)
			{
				this.show();
				this.active = true;
			}
		}
		else
		{
			this.active = false;
			this.hide();
		}
	},

	markPrevious: function()
	{
		if (this.index > 0) this.index--
		else this.index = this.entryCount - 1;
		this.getEntry(this.index).scrollIntoView(true);
	},

	markNext: function()
	{
		if (this.index < this.entryCount - 1) this.index++
		else this.index = 0;
		this.getEntry(this.index).scrollIntoView(false);
	},

	getEntry: function(index)
	{
		return this.update.firstChild.childNodes[index];
	},

	getCurrentEntry: function()
	{
		return this.getEntry(this.index);
	},

	selectEntry: function()
	{
		this.active = false;
		this.updateElement(this.getCurrentEntry());
	},

	updateElement: function(selectedElement)
	{
		if (this.options.updateElement)
		{
			this.options.updateElement(selectedElement);
			return;
		}
		var value = '';
		if (this.options.select)
		{
			var nodes = $(selectedElement).select('.' + this.options.select) || [];
			if (nodes.length > 0) value = Element.collectTextNodes(nodes[0], this.options.select);
		}
		else
			value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');

		var bounds = this.getTokenBounds();
		if (bounds[0] != -1)
		{
			var newValue = this.element.value.substr(0, bounds[0]);
			var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
			if (whitespace)
				newValue += whitespace[0];
			this.element.value = newValue + value + this.element.value.substr(bounds[1]);
		}
		else
		{
			this.element.value = value;
		}
		this.oldElementValue = this.element.value;
		this.element.focus();

		if (this.options.afterUpdateElement)
			this.options.afterUpdateElement(this.element, selectedElement);
	},

	updateChoices: function(choices)
	{
		if (!this.changed && this.hasFocus)
		{
			this.update.innerHTML = choices;
			Element.cleanWhitespace(this.update);
			Element.cleanWhitespace(this.update.down());

			if (this.update.firstChild && this.update.down().childNodes)
			{
				this.entryCount =
				this.update.down().childNodes.length;
				for (var i = 0; i < this.entryCount; i++)
				{
					var entry = this.getEntry(i);
					entry.autocompleteIndex = i;
					this.addObservers(entry);
				}
			}
			else
			{
				this.entryCount = 0;
			}

			this.stopIndicator();
			this.index = 0;

			if (this.entryCount == 1 && this.options.autoSelect)
			{
				this.selectEntry();
				this.hide();
			}
			else
			{
				this.render();
			}
		}
	},

	addObservers: function(element)
	{
		Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
		Event.observe(element, "click", this.onClick.bindAsEventListener(this));
	},

	onObserverEvent: function()
	{
		this.changed = false;
		this.tokenBounds = null;
		if (this.getToken().length >= this.options.minChars)
		{
			this.getUpdatedChoices();
		}
		else
		{
			this.active = false;
			this.hide();
		}
		this.oldElementValue = this.element.value;
	},

	getToken: function()
	{
		var bounds = this.getTokenBounds();
		return this.element.value.substring(bounds[0], bounds[1]).strip();
	},

	getTokenBounds: function()
	{
		if (null != this.tokenBounds) return this.tokenBounds;
		var value = this.element.value;
		if (value.strip().empty()) return [-1, 0];
		var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
		var offset = (diff == this.oldElementValue.length ? 1 : 0);
		var prevTokenPos = -1, nextTokenPos = value.length;
		var tp;
		for (var index = 0, l = this.options.tokens.length; index < l; ++index)
		{
			tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
			if (tp > prevTokenPos) prevTokenPos = tp;
			tp = value.indexOf(this.options.tokens[index], diff + offset);
			if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
		}
		return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
	}
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS)
{
	var boundary = Math.min(newS.length, oldS.length);
	for (var index = 0; index < boundary; ++index)
		if (newS[index] != oldS[index])
			return index;
	return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
	initialize: function(element, update, url, options)
	{
		this.baseInitialize(element, update, options);
		this.options.asynchronous = true;
		this.options.onComplete = this.onComplete.bind(this);
		this.options.defaultParams = this.options.parameters || null;
		this.url = url;
	},

	getUpdatedChoices: function()
	{
		this.startIndicator();

		var entry = encodeURIComponent(this.options.paramName) + '=' +
		            encodeURIComponent(this.getToken());

		this.options.parameters = this.options.callback ?
		                          this.options.callback(this.element, entry) : entry;

		if (this.options.defaultParams)
			this.options.parameters += '&' + this.options.defaultParams;

		new Ajax.Request(this.url, this.options);
	},

	onComplete: function(request)
	{
		this.updateChoices(request.responseText);
	}
});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
//                    text only at the beginning of strings in the 
//                    autocomplete array. Defaults to true, which will
//                    match text at the beginning of any *word* in the
//                    strings in the autocomplete array. If you want to
//                    search anywhere in the string, additionally set
//                    the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
//                   a partial match (unlike minChars, which defines
//                   how many characters are required to do any match
//                   at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
//                 Defaults to true.
//
// It's possible to pass in a custom function as the 'selector' 
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
	initialize: function(element, update, array, options)
	{
		this.baseInitialize(element, update, options);
		this.options.array = array;
	},

	getUpdatedChoices: function()
	{
		this.updateChoices(this.options.selector(this));
	},

	setOptions: function(options)
	{
		this.options = Object.extend({
			choices: 10,
			partialSearch: true,
			partialChars: 2,
			ignoreCase: true,
			fullSearch: false,
			selector: function(instance)
			{
				var ret = []; // Beginning matches
				var partial = []; // Inside matches
				var entry = instance.getToken();
				var count = 0;

				for (var i = 0; i < instance.options.array.length &&
				                ret.length < instance.options.choices; i++)
				{

					var elem = instance.options.array[i];
					var foundPos = instance.options.ignoreCase ?
					               elem.toLowerCase().indexOf(entry.toLowerCase()) :
					               elem.indexOf(entry);

					while (foundPos != -1)
					{
						if (foundPos == 0 && elem.length != entry.length)
						{
							ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
							         elem.substr(entry.length) + "</li>");
							break;
						}
						else if (entry.length >= instance.options.partialChars &&
						         instance.options.partialSearch && foundPos != -1)
						{
							if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos - 1, 1)))
							{
								partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
								             elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
										foundPos + entry.length) + "</li>");
								break;
							}
						}

						foundPos = instance.options.ignoreCase ?
						           elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
						           elem.indexOf(entry, foundPos + 1);

					}
				}
				if (partial.length)
					ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
				return "<ul>" + ret.join('') + "</ul>";
			}
		}, options || { });
	}
});

// AJAX in-place editor and collection editor
// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field)
{
	setTimeout(function()
	{
		Field.activate(field);
	}, 1);
}

Ajax.InPlaceEditor = Class.create({
	initialize: function(element, url, options)
	{
		this.url = url;
		this.element = element = $(element);
		this.prepareOptions();
		this._controls = { };
		arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
		Object.extend(this.options, options || { });
		if (!this.options.formId && this.element.id)
		{
			this.options.formId = this.element.id + '-inplaceeditor';
			if ($(this.options.formId))
				this.options.formId = '';
		}
		if (this.options.externalControl)
			this.options.externalControl = $(this.options.externalControl);
		if (!this.options.externalControl)
			this.options.externalControlOnly = false;
		this._originalBackground = this.element.getStyle('background-color') || 'transparent';
		this.element.title = this.options.clickToEditText;
		this._boundCancelHandler = this.handleFormCancellation.bind(this);
		this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
		this._boundFailureHandler = this.handleAJAXFailure.bind(this);
		this._boundSubmitHandler = this.handleFormSubmission.bind(this);
		this._boundWrapperHandler = this.wrapUp.bind(this);
		this.registerListeners();
	},
	checkForEscapeOrReturn: function(e)
	{
		if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
		if (Event.KEY_ESC == e.keyCode)
			this.handleFormCancellation(e);
		else if (Event.KEY_RETURN == e.keyCode)
			this.handleFormSubmission(e);
	},
	createControl: function(mode, handler, extraClasses)
	{
		var control = this.options[mode + 'Control'];
		var text = this.options[mode + 'Text'];
		if ('button' == control)
		{
			var btn = document.createElement('input');
			btn.type = 'submit';
			btn.value = text;
			btn.className = 'editor_' + mode + '_button';
			if ('cancel' == mode)
				btn.onclick = this._boundCancelHandler;
			this._form.appendChild(btn);
			this._controls[mode] = btn;
		}
		else if ('link' == control)
		{
			var link = document.createElement('a');
			link.href = '#';
			link.appendChild(document.createTextNode(text));
			link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
			link.className = 'editor_' + mode + '_link';
			if (extraClasses)
				link.className += ' ' + extraClasses;
			this._form.appendChild(link);
			this._controls[mode] = link;
		}
	},
	createEditField: function()
	{
		var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
		var fld;
		if (1 >= this.options.rows && !/\r|\n/.test(this.getText()))
		{
			fld = document.createElement('input');
			fld.type = 'text';
			var size = this.options.size || this.options.cols || 0;
			if (0 < size) fld.size = size;
		}
		else
		{
			fld = document.createElement('textarea');
			fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
			fld.cols = this.options.cols || 40;
		}
		fld.name = this.options.paramName;
		fld.value = text; // No HTML breaks conversion anymore
		fld.className = 'editor_field';
		if (this.options.submitOnBlur)
			fld.onblur = this._boundSubmitHandler;
		this._controls.editor = fld;
		if (this.options.loadTextURL)
			this.loadExternalText();
		this._form.appendChild(this._controls.editor);
	},
	createForm: function()
	{
		var ipe = this;
		function addText(mode, condition)
		{
			var text = ipe.options['text' + mode + 'Controls'];
			if (!text || condition === false) return;
			ipe._form.appendChild(document.createTextNode(text));
		}
		;
		this._form = $(document.createElement('form'));
		this._form.id = this.options.formId;
		this._form.addClassName(this.options.formClassName);
		this._form.onsubmit = this._boundSubmitHandler;
		this.createEditField();
		if ('textarea' == this._controls.editor.tagName.toLowerCase())
			this._form.appendChild(document.createElement('br'));
		if (this.options.onFormCustomization)
			this.options.onFormCustomization(this, this._form);
		addText('Before', this.options.okControl || this.options.cancelControl);
		this.createControl('ok', this._boundSubmitHandler);
		addText('Between', this.options.okControl && this.options.cancelControl);
		this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
		addText('After', this.options.okControl || this.options.cancelControl);
	},
	destroy: function()
	{
		if (this._oldInnerHTML)
			this.element.innerHTML = this._oldInnerHTML;
		this.leaveEditMode();
		this.unregisterListeners();
	},
	enterEditMode: function(e)
	{
		if (this._saving || this._editing) return;
		this._editing = true;
		this.triggerCallback('onEnterEditMode');
		if (this.options.externalControl)
			this.options.externalControl.hide();
		this.element.hide();
		this.createForm();
		this.element.parentNode.insertBefore(this._form, this.element);
		if (!this.options.loadTextURL)
			this.postProcessEditField();
		if (e) Event.stop(e);
	},
	enterHover: function(e)
	{
		if (this.options.hoverClassName)
			this.element.addClassName(this.options.hoverClassName);
		if (this._saving) return;
		this.triggerCallback('onEnterHover');
	},
	getText: function()
	{
		return this.element.innerHTML;
	},
	handleAJAXFailure: function(transport)
	{
		this.triggerCallback('onFailure', transport);
		if (this._oldInnerHTML)
		{
			this.element.innerHTML = this._oldInnerHTML;
			this._oldInnerHTML = null;
		}
	},
	handleFormCancellation: function(e)
	{
		this.wrapUp();
		if (e) Event.stop(e);
	},
	handleFormSubmission: function(e)
	{
		var form = this._form;
		var value = $F(this._controls.editor);
		this.prepareSubmission();
		var params = this.options.callback(form, value) || '';
		if (Object.isString(params))
			params = params.toQueryParams();
		params.editorId = this.element.id;
		if (this.options.htmlResponse)
		{
			var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
			Object.extend(options, {
				parameters: params,
				onComplete: this._boundWrapperHandler,
				onFailure: this._boundFailureHandler
			});
			new Ajax.Updater({ success: this.element }, this.url, options);
		}
		else
		{
			var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
			Object.extend(options, {
				parameters: params,
				onComplete: this._boundWrapperHandler,
				onFailure: this._boundFailureHandler
			});
			new Ajax.Request(this.url, options);
		}
		if (e) Event.stop(e);
	},
	leaveEditMode: function()
	{
		this.element.removeClassName(this.options.savingClassName);
		this.removeForm();
		this.leaveHover();
		this.element.style.backgroundColor = this._originalBackground;
		this.element.show();
		if (this.options.externalControl)
			this.options.externalControl.show();
		this._saving = false;
		this._editing = false;
		this._oldInnerHTML = null;
		this.triggerCallback('onLeaveEditMode');
	},
	leaveHover: function(e)
	{
		if (this.options.hoverClassName)
			this.element.removeClassName(this.options.hoverClassName);
		if (this._saving) return;
		this.triggerCallback('onLeaveHover');
	},
	loadExternalText: function()
	{
		this._form.addClassName(this.options.loadingClassName);
		this._controls.editor.disabled = true;
		var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
		Object.extend(options, {
			parameters: 'editorId=' + encodeURIComponent(this.element.id),
			onComplete: Prototype.emptyFunction,
			onSuccess: function(transport)
			{
				this._form.removeClassName(this.options.loadingClassName);
				var text = transport.responseText;
				if (this.options.stripLoadedTextTags)
					text = text.stripTags();
				this._controls.editor.value = text;
				this._controls.editor.disabled = false;
				this.postProcessEditField();
			}.bind(this),
			onFailure: this._boundFailureHandler
		});
		new Ajax.Request(this.options.loadTextURL, options);
	},
	postProcessEditField: function()
	{
		var fpc = this.options.fieldPostCreation;
		if (fpc)
			$(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
	},
	prepareOptions: function()
	{
		this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
		Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
		[this._extraDefaultOptions].flatten().compact().each(function(defs)
		{
			Object.extend(this.options, defs);
		}.bind(this));
	},
	prepareSubmission: function()
	{
		this._saving = true;
		this.removeForm();
		this.leaveHover();
		this.showSaving();
	},
	registerListeners: function()
	{
		this._listeners = { };
		var listener;
		$H(Ajax.InPlaceEditor.Listeners).each(function(pair)
		{
			listener = this[pair.value].bind(this);
			this._listeners[pair.key] = listener;
			if (!this.options.externalControlOnly)
				this.element.observe(pair.key, listener);
			if (this.options.externalControl)
				this.options.externalControl.observe(pair.key, listener);
		}.bind(this));
	},
	removeForm: function()
	{
		if (!this._form) return;
		this._form.remove();
		this._form = null;
		this._controls = { };
	},
	showSaving: function()
	{
		this._oldInnerHTML = this.element.innerHTML;
		this.element.innerHTML = this.options.savingText;
		this.element.addClassName(this.options.savingClassName);
		this.element.style.backgroundColor = this._originalBackground;
		this.element.show();
	},
	triggerCallback: function(cbName, arg)
	{
		if ('function' == typeof this.options[cbName])
		{
			this.options[cbName](this, arg);
		}
	},
	unregisterListeners: function()
	{
		$H(this._listeners).each(function(pair)
		{
			if (!this.options.externalControlOnly)
				this.element.stopObserving(pair.key, pair.value);
			if (this.options.externalControl)
				this.options.externalControl.stopObserving(pair.key, pair.value);
		}.bind(this));
	},
	wrapUp: function(transport)
	{
		this.leaveEditMode();
    // Can't use triggerCallback due to backward compatibility: requires
		// binding + direct element
		this._boundComplete(transport, this.element);
	}
});

Object.extend(Ajax.InPlaceEditor.prototype, {
	dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
	initialize: function($super, element, url, options)
	{
		this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
		$super(element, url, options);
	},

	createEditField: function()
	{
		var list = document.createElement('select');
		list.name = this.options.paramName;
		list.size = 1;
		this._controls.editor = list;
		this._collection = this.options.collection || [];
		if (this.options.loadCollectionURL)
			this.loadCollection();
		else
			this.checkForExternalText();
		this._form.appendChild(this._controls.editor);
	},

	loadCollection: function()
	{
		this._form.addClassName(this.options.loadingClassName);
		this.showLoadingText(this.options.loadingCollectionText);
		var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
		Object.extend(options, {
			parameters: 'editorId=' + encodeURIComponent(this.element.id),
			onComplete: Prototype.emptyFunction,
			onSuccess: function(transport)
			{
				var js = transport.responseText.strip();
				if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
					throw 'Server returned an invalid collection representation.';
				this._collection = eval(js);
				this.checkForExternalText();
			}.bind(this),
			onFailure: this.onFailure
		});
		new Ajax.Request(this.options.loadCollectionURL, options);
	},

	showLoadingText: function(text)
	{
		this._controls.editor.disabled = true;
		var tempOption = this._controls.editor.firstChild;
		if (!tempOption)
		{
			tempOption = document.createElement('option');
			tempOption.value = '';
			this._controls.editor.appendChild(tempOption);
			tempOption.selected = true;
		}
		tempOption.update((text || '').stripScripts().stripTags());
	},

	checkForExternalText: function()
	{
		this._text = this.getText();
		if (this.options.loadTextURL)
			this.loadExternalText();
		else
			this.buildOptionList();
	},

	loadExternalText: function()
	{
		this.showLoadingText(this.options.loadingText);
		var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
		Object.extend(options, {
			parameters: 'editorId=' + encodeURIComponent(this.element.id),
			onComplete: Prototype.emptyFunction,
			onSuccess: function(transport)
			{
				this._text = transport.responseText.strip();
				this.buildOptionList();
			}.bind(this),
			onFailure: this.onFailure
		});
		new Ajax.Request(this.options.loadTextURL, options);
	},

	buildOptionList: function()
	{
		this._form.removeClassName(this.options.loadingClassName);
		this._collection = this._collection.map(function(entry)
		{
			return 2 === entry.length ? entry : [entry, entry].flatten();
		});
		var marker = ('value' in this.options) ? this.options.value : this._text;
		var textFound = this._collection.any(function(entry)
		{
			return entry[0] == marker;
		}.bind(this));
		this._controls.editor.update('');
		var option;
		this._collection.each(function(entry, index)
		{
			option = document.createElement('option');
			option.value = entry[0];
			option.selected = textFound ? entry[0] == marker : 0 == index;
			option.appendChild(document.createTextNode(entry[1]));
			this._controls.editor.appendChild(option);
		}.bind(this));
		this._controls.editor.disabled = false;
		Field.scrollFreeActivate(this._controls.editor);
	}
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options)
{
	if (!options) return;
	function fallback(name, expr)
	{
		if (name in options || expr === undefined) return;
		options[name] = expr;
	}
	;
	fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
	                                                          options.cancelLink == options.cancelButton == false ? false : undefined)));
	fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
	                                                  options.okLink == options.okButton == false ? false : undefined)));
	fallback('highlightColor', options.highlightcolor);
	fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
	DefaultOptions: {
		ajaxOptions: { },
		autoRows: 3,                                // Use when multi-line w/ rows == 1
		cancelControl: 'link',                      // 'link'|'button'|false
		cancelText: 'cancel',
		clickToEditText: 'Click to edit',
		externalControl: null,                      // id|elt
		externalControlOnly: false,
		fieldPostCreation: 'activate',              // 'activate'|'focus'|false
		formClassName: 'inplaceeditor-form',
		formId: null,                               // id|elt
		highlightColor: '#ffff99',
		highlightEndColor: '#ffffff',
		hoverClassName: '',
		htmlResponse: true,
		loadingClassName: 'inplaceeditor-loading',
		loadingText: 'Loading...',
		okControl: 'button',                        // 'link'|'button'|false
		okText: 'ok',
		paramName: 'value',
		rows: 1,                                    // If 1 and multi-line, uses autoRows
		savingClassName: 'inplaceeditor-saving',
		savingText: 'Saving...',
		size: 0,
		stripLoadedTextTags: false,
		submitOnBlur: false,
		textAfterControls: '',
		textBeforeControls: '',
		textBetweenControls: ''
	},
	DefaultCallbacks: {
		callback: function(form)
		{
			return Form.serialize(form);
		},
		onComplete: function(transport, element)
		{
			// For backward compatibility, this one is bound to the IPE, and passes
			// the element directly.  It was too often customized, so we don't break it.
			new Effect.Highlight(element, {
				startcolor: this.options.highlightColor, keepBackgroundImage: true });
		},
		onEnterEditMode: null,
		onEnterHover: function(ipe)
		{
			ipe.element.style.backgroundColor = ipe.options.highlightColor;
			if (ipe._effect)
				ipe._effect.cancel();
		},
		onFailure: function(transport, ipe)
		{
			alert('Error communication with the server: ' + transport.responseText.stripTags());
		},
		onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
		onLeaveEditMode: null,
		onLeaveHover: function(ipe)
		{
			ipe._effect = new Effect.Highlight(ipe.element, {
				startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
				restorecolor: ipe._originalBackground, keepBackgroundImage: true
			});
		}
	},
	Listeners: {
		click: 'enterEditMode',
		keydown: 'checkForEscapeOrReturn',
		mouseover: 'enterHover',
		mouseout: 'leaveHover'
	}
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
	loadingCollectionText: 'Loading options...'
};

// Delayed observer, like Form.Element.Observer, 
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
	initialize: function(element, delay, callback)
	{
		this.delay = delay || 0.5;
		this.element = $(element);
		this.callback = callback;
		this.timer = null;
		this.lastValue = $F(this.element);
		Event.observe(this.element, 'keyup', this.delayedListener.bindAsEventListener(this));
	},
	delayedListener: function(event)
	{
		if (this.lastValue == $F(this.element)) return;
		if (this.timer) clearTimeout(this.timer);
		this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
		this.lastValue = $F(this.element);
	},
	onTimerEvent: function()
	{
		this.timer = null;
		this.callback(this.element, $F(this.element));
	}
});
// script.aculo.us builder.js v1.8.0, Tue Nov 06 15:01:40 +0300 2007

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

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

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

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

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

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

	_attributes: function(attributes)
	{
		var attrs = [];
		for (attribute in attributes)
			attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
			           '="' + attributes[attribute].toString().escapeHTML().gsub(/"/, '&quot;') + '"');
		return attrs.join(" ");
	},
	_children: function(element, children)
	{
		if (children.tagName)
		{
			element.appendChild(children);
			return;
		}
		if (typeof children == 'object')
		{ // array can hold nodes and text
			children.flatten().each(function(e)
			{
				if (typeof e == 'object')
					element.appendChild(e)
				else
					if (Builder._isStringOrNumber(e))
						element.appendChild(Builder._text(e));
			});
		}
		else
			if (Builder._isStringOrNumber(children))
				element.appendChild(Builder._text(children));
	},
	_isStringOrNumber: function(param)
	{
		return(typeof param == 'string' || typeof param == 'number');
	},
	build: function(html)
	{
		var element = this.node('div');
		$(element).update(html.strip());
		return element.down();
	},
	dump: function(scope)
	{
		if (typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope

		var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
		            "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
		            "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX " +
		            "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P " +
		            "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD " +
		            "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);

		tags.each(function(tag)
		{
			scope[tag] = function()
			{
				return Builder.node.apply(Builder, [tag].concat($A(arguments)));
			}
		});
	}
}
// Additional scriptaculous-like effects

Effect.SlideInLeft = function(element)
{
	element = $(element);
	element.cleanWhitespace();
	var parent = $(element.parentNode);
	var parentWidth = parent.getWidth();
	parent.makeClipping();
	return new Effect.Move(element, Object.extend({
		x: -parentWidth,
		y: 0,
		restoreAfterFinish: true,
		afterSetup: function(effect)
		{
			effect.element.makePositioned();
			if (effect.element.firstChild)
				effect.element.firstChild.makePositioned();
			var marginLeft = Effect.stripPx(effect.element.getStyle('marginLeft'));
			var paddingLeft = Effect.stripPx(effect.element.parentNode.getStyle('paddingLeft'));
			effect.originalLeft += parentWidth + marginLeft + paddingLeft;
			var marginTop = Effect.stripPx(effect.element.getStyle('marginTop'));
			var paddingTop = Effect.stripPx(effect.element.parentNode.getStyle('paddingTop'));
			effect.originalTop = marginTop + paddingTop;
		},
		afterUpdateInternal: function(effect)
		{
			if (effect.element.style.position != 'absolute')
				Position.absolutize(effect.element);
		},
		afterFinishInternal: function(effect)
		{
			parent.undoClipping();
			// IE will crash if child is undoPositioned first
			if (/MSIE/.test(navigator.userAgent))
			{
				effect.element.undoPositioned();
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
			}
			else
			{
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
				effect.element.undoPositioned();
			}
			effect.element.style.position = '';
		}
	}, arguments[1] || {}));
};

Effect.SlideInRight = function(element)
{
	element = $(element);
	element.cleanWhitespace();
	var parent = $(element.parentNode);
	var parentWidth = parent.getWidth();
	parent.makeClipping();
	return new Effect.Move(element, Object.extend({
		x: parentWidth,
		y: 0,
		restoreAfterFinish: true,
		afterSetup: function(effect)
		{
			effect.element.makePositioned();
			if (effect.element.firstChild)
				effect.element.firstChild.makePositioned();
			var marginLeft = Effect.stripPx(effect.element.getStyle('marginLeft'));
			var paddingLeft = Effect.stripPx(effect.element.parentNode.getStyle('paddingLeft'));
			effect.originalLeft -= parentWidth - marginLeft - paddingLeft;
			var marginTop = Effect.stripPx(effect.element.getStyle('marginTop'));
			var paddingTop = Effect.stripPx(effect.element.parentNode.getStyle('paddingTop'));
			effect.originalTop = marginTop + paddingTop;
			Position.absolutize(effect.element);
		},
		afterUpdateInternal: function(effect)
		{
			if (effect.element.style.position != 'absolute')
				Position.absolutize(effect.element);
		},
		afterFinishInternal: function(effect)
		{
			parent.undoClipping();
			// IE will crash if child is undoPositioned first
			if (/MSIE/.test(navigator.userAgent))
			{
				effect.element.undoPositioned();
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
			}
			else
			{
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
				effect.element.undoPositioned();
			}
			effect.element.style.position = '';
		}
	}, arguments[1] || {}));
};

Effect.SlideOutLeft = function(element)
{
	element = $(element);
	element.cleanWhitespace();
	var parent = $(element.parentNode);
	var parentWidth = parent.getWidth();
	parent.makeClipping();
	return new Effect.Move(element, Object.extend({
		x: -parentWidth,
		y: 0,
		restoreAfterFinish: true,
		afterSetup: function(effect)
		{
			effect.element.makePositioned();
			if (effect.element.firstChild)
				effect.element.firstChild.makePositioned();
		},
		afterFinishInternal: function(effect)
		{
			parent.undoClipping();
			// IE will crash if child is undoPositioned first
			if (/MSIE/.test(navigator.userAgent))
			{
				effect.element.undoPositioned();
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
			}
			else
			{
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
				effect.element.undoPositioned();
			}
			effect.element.hide();
		}
	}, arguments[1] || {}));
};

Effect.SlideOutRight = function(element)
{
	element = $(element);
	element.cleanWhitespace();
	var parent = $(element.parentNode);
	var parentWidth = parent.getWidth();
	parent.makeClipping();
	return new Effect.Move(element, Object.extend({
		x: parentWidth,
		y: 0,
		restoreAfterFinish: true,
		afterSetup: function(effect)
		{
			effect.element.makePositioned();
			if (effect.element.firstChild)
				effect.element.firstChild.makePositioned();
		},
		afterFinishInternal: function(effect)
		{
			parent.undoClipping();
			// IE will crash if child is undoPositioned first
			if (/MSIE/.test(navigator.userAgent))
			{
				effect.element.undoPositioned();
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
			}
			else
			{
				if (effect.element.firstChild)
					effect.element.firstChild.undoPositioned();
				effect.element.undoPositioned();
			}
			effect.element.hide();
		}
	}, arguments[1] || {}));
};

Effect.Exchange = function(hideElement, showElement, hideEffect, showEffect)
{
	hideElement = $(hideElement);
	showElement = $(showElement);
	var parent = $(hideElement.parentNode);
	var parentHeight = parent.getHeight();
	var effects = [];
	effects.push(new hideEffect(hideElement, { sync: true }));
	effects.push(new showEffect(showElement, { sync: true }));
	var oldParentHeightStyle = parent.style.height;
	parent.setStyle({height:parentHeight + 'px'});

	var resizing = parent.hasClassName('resize');
	if (resizing)
	{
		effects.push(new Effect.Scale(parent, showElement.getHeight() / hideElement.getHeight() * 100,
		{
			sync: true,
			scaleX: false,
			scaleContent: false
		}));
	}
	parent.makeClipping();
	parent.makePositioned();
	return new Effect.Parallel(effects,
	{
		restoreAfterFinish: false,
		beforeSetup: function()
		{
		},
		afterSetup: function()
		{
			showElement.show();
		},
		afterFinish: function()
		{
			parent.style.height = oldParentHeightStyle;
		}
	});
};

Effect.SlideExchangeLeft = function(hideElement, showElement)
{
	return new Effect.Exchange(hideElement, showElement, Effect.SlideOutLeft, Effect.SlideInLeft);
};

Effect.SlideExchangeRight = function(hideElement, showElement)
{
	return new Effect.Exchange(hideElement, showElement, Effect.SlideOutRight, Effect.SlideInRight);
};

Effect.stripPx = function(length)
{
	if (length == null || length == '0')
		return 0;
	var matches = length.match(/([0-9]+)px/);
	if (matches)
		return new Number(matches[1]);
	else
		throw 'no "px" units found on value "' + length + '"';
}
		;// -----------------------------------------------------------------------------------
//
//	Lightbox v2.02
//	by Lokesh Dhakar - http://www.huddletogether.com
//	3/31/06
//
//	For more information on this script, visit:
//	http://huddletogether.com/projects/lightbox2/
//
//	Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//	
//	Credit also due to those who have helped, inspired, and made their code available to the public.
//	Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.org), Thomas Fuchs(mir.aculo.us), and others.
//
//
// -----------------------------------------------------------------------------------
/*

 Table of Contents
 -----------------
 Configuration
 Global Variables

 Extending Built-in Objects
 - Object.extend(Element)
 - Array.prototype.removeDuplicates()
 - Array.prototype.empty()

 Lightbox Class Declaration
 - initialize()
 - start()
 - changeImage()
 - resizeImageContainer()
 - showImage()
 - updateDetails()
 - updateNav()
 - enableKeyboardNav()
 - disableKeyboardNav()
 - keyboardAction()
 - preloadNeighborImages()
 - end()

 Miscellaneous Functions
 - getPageScroll()
 - getPageSize()
 - getKey()
 - listenKey()
 - showSelectBoxes()
 - hideSelectBoxes()
 - pause()
 - initLightbox()

 Function Calls
 - addLoadEvent(initLightbox)

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

//
//	Configuration
//
var fileLoadingImage = "/includes/lightbox/images/loading.gif";
var fileBottomNavCloseImage = "/includes/lightbox/images/closelabel.gif";

var resizeSpeed = 7;
// controls the speed of the image resizing (1=slowest and 10=fastest)

var borderSize = 10;
//if you adjust the padding in the CSS, you will need to update this variable

// -----------------------------------------------------------------------------------

//
//	Global Variables
//
var imageArray = new Array;
var activeImage;

if (resizeSpeed > 10)
{
	resizeSpeed = 10;
}
if (resizeSpeed < 1)
{
	resizeSpeed = 1;
}
var resizeDuration = (11 - resizeSpeed) * 0.15;

// -----------------------------------------------------------------------------------

//
//	Additional methods for Element added by SU, Couloir
//	- further additions by Lokesh Dhakar (huddletogether.com)
//
Object.extend(Element, {
	getWidth: function(element)
		{
		element = $(element);
		return element.offsetWidth;
	},
	setWidth: function(element, w)
		{
		element = $(element);
		element.style.width = w + "px";
	},
	setHeight: function(element, h)
		{
		element = $(element);
		element.style.height = h + "px";
	},
	setTop: function(element, t)
		{
		element = $(element);
		element.style.top = t + "px";
	},
	setSrc: function(element, src)
		{
		element = $(element);
		element.src = src;
	},
	setHref: function(element, href)
		{
		element = $(element);
		element.href = href;
	},
	setInnerHTML: function(element, content)
		{
		element = $(element);
		element.innerHTML = content;
	}
});

// -----------------------------------------------------------------------------------

//
//	Extending built-in Array object
//	- array.removeDuplicates()
//	- array.empty()
//
Array.prototype.removeDuplicates = function ()
	{
	for (var i = 1; i < this.length; i++)
	{
		if (this[i][0] == this[i - 1][0])
		{
			this.splice(i, 1);
		}
	}
}

// -----------------------------------------------------------------------------------

Array.prototype.empty = function ()
	{
	for (var i = 0; i <= this.length; i++)
	{
		this.shift();
	}
}

// -----------------------------------------------------------------------------------

//
//	Lightbox Class Declaration
//	- initialize()
//	- start()
//	- changeImage()
//	- resizeImageContainer()
//	- showImage()
//	- updateDetails()
//	- updateNav()
//	- enableKeyboardNav()
//	- disableKeyboardNav()
//	- keyboardNavAction()
//	- preloadNeighborImages()
//	- end()
//
//	Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();

Lightbox.prototype = {

	// initialize()
	// Constructor runs on completion of the DOM loading. Loops through anchor tags looking for
	// 'lightbox' references and applies onclick events to appropriate links. The 2nd section of
	// the function inserts html at the bottom of the page which is used to display the shadow
	// overlay and the image container.
	//
	initialize: function()
		{
		if (!document.getElementsByTagName)
		{
			return;
		}
		var anchors = document.getElementsByTagName('a');

		// loop through all anchor tags
		for (var i = 0; i < anchors.length; i++)
		{
			var anchor = anchors[i];

			var relAttribute = String(anchor.getAttribute('rel'));

			// use the string.match() method to catch 'lightbox' references in the rel attribute
			if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox')))
			{
				Element.observe(anchor, 'click', function (event)
					{
					event.stop();
					myLightbox.start(this);
					return false;
				});
			}
		}

		// The rest of this code inserts html at the bottom of the page that looks similar to this:
		//
		//	<div id="overlay"></div>
		//	<div id="lightbox">
		//		<div id="imageDataContainer">
		//			<div id="imageData">
		//				<div id="imageDetails">
		//    	  	<a href="#" id="closeButton">
		//	      		<img src="images/close.gif">
		//	      	</a>
		//					<span id="caption"></span>
		//					<span id="numberDisplay"></span>
		//				</div>
		//			</div>
		//		</div>
		//		<div id="outerImageContainer">
		//			<div id="imageContainer">
		//				<img id="lightboxImage">
		//				<div style="" id="hoverNav">
		//					<a href="#" id="prevLink"></a>
		//					<a href="#" id="nextLink"></a>
		//				</div>
		//				<div id="loading">
		//					<a href="#" id="loadingLink">
		//						<img src="images/loading.gif">
		//					</a>
		//				</div>
		//			</div>
		//		</div>
		//	</div>

		var objBody = document.getElementsByTagName("body").item(0);

		var objOverlay = document.createElement("div");
		objOverlay.setAttribute('id', 'overlay');
		objOverlay.style.display = 'none';
		objOverlay.onclick = function()
			{
			myLightbox.end();
			return false;
		}
		objBody.appendChild(objOverlay);

		var objLightbox = document.createElement("div");
		objLightbox.setAttribute('id', 'lightbox');
		objLightbox.style.display = 'none';
		objBody.appendChild(objLightbox);

		var objImageDataContainer = document.createElement("div");
		objImageDataContainer.setAttribute('id', 'imageDataContainer');
		objImageDataContainer.className = 'clearfix';
		objLightbox.appendChild(objImageDataContainer);

		var objImageData = document.createElement("div");
		objImageData.setAttribute('id', 'imageData');
		objImageDataContainer.appendChild(objImageData);

		var objBottomNav = document.createElement("div");
		objBottomNav.setAttribute('id', 'bottomNav');
		objImageData.appendChild(objBottomNav);

		var objImageDetails = document.createElement("div");
		objImageDetails.setAttribute('id', 'imageDetails');
		objImageData.appendChild(objImageDetails);

		var objCloseButton = document.createElement("a");
		objCloseButton.setAttribute('id', 'closeButton');
		objCloseButton.setAttribute('href', '#');
		objCloseButton.onclick = function()
			{
			myLightbox.end();
			return false;
		}
		objImageDetails.appendChild(objCloseButton);

		var objCloseButtonImage = document.createElement("img");
		objCloseButtonImage.setAttribute('src', fileBottomNavCloseImage);
		objCloseButton.appendChild(objCloseButtonImage);

		var objCaption = document.createElement("span");
		objCaption.setAttribute('id', 'caption');
		objImageDetails.appendChild(objCaption);

		var objNumberDisplay = document.createElement("span");
		objNumberDisplay.setAttribute('id', 'numberDisplay');
		objImageDetails.appendChild(objNumberDisplay);

		var objOuterImageContainer = document.createElement("div");
		objOuterImageContainer.setAttribute('id', 'outerImageContainer');
		objLightbox.appendChild(objOuterImageContainer);

		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id', 'imageContainer');
		objOuterImageContainer.appendChild(objImageContainer);

		var objLightboxImage = document.createElement("img");
		objLightboxImage.setAttribute('id', 'lightboxImage');
		objImageContainer.appendChild(objLightboxImage);

		var objHoverNav = document.createElement("div");
		objHoverNav.setAttribute('id', 'hoverNav');
		objImageContainer.appendChild(objHoverNav);

		var objPrevLink = document.createElement("a");
		objPrevLink.setAttribute('id', 'prevLink');
		objPrevLink.setAttribute('href', '#');
		objHoverNav.appendChild(objPrevLink);

		var objNextLink = document.createElement("a");
		objNextLink.setAttribute('id', 'nextLink');
		objNextLink.setAttribute('href', '#');
		objHoverNav.appendChild(objNextLink);

		var objLoading = document.createElement("div");
		objLoading.setAttribute('id', 'loading');
		objImageContainer.appendChild(objLoading);

		var objLoadingLink = document.createElement("a");
		objLoadingLink.setAttribute('id', 'loadingLink');
		objLoadingLink.setAttribute('href', '#');
		objLoadingLink.onclick = function()
			{
			myLightbox.end();
			return false;
		}
		objLoading.appendChild(objLoadingLink);

		var objLoadingImage = document.createElement("img");
		objLoadingImage.setAttribute('src', fileLoadingImage);
		objLoadingLink.appendChild(objLoadingImage);
	},

	//
	//	start()
	//	Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
	//
	start: function(imageLink)
		{

		hideSelectBoxes();

		// stretch overlay to fill page and fade in
		var arrayPageSize = getPageSize();
		Element.setHeight('overlay', arrayPageSize[1]);
		new Effect.Appear('overlay', { duration: 0.2, from: 0.0, to: 0.8 });

		imageArray = [];
		var imageNum = 0;

		if (!document.getElementsByTagName)
		{
			return;
		}
		var anchors = document.getElementsByTagName('a');

		// if image is NOT part of a set..
		if ((imageLink.getAttribute('rel') == 'lightbox'))
		{
			// add single image to imageArray
			imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));
		}
		else
		{
			// if image is part of a set..

			// loop through anchors, find other images in set, and add them to imageArray
			for (var i = 0; i < anchors.length; i++)
			{
				var anchor = anchors[i];
				if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel')))
				{
					imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
				}
			}
			imageArray.removeDuplicates();
			while (imageArray[imageNum][0] != imageLink.getAttribute('href'))
			{
				imageNum++;
			}
		}

		// calculate top offset for the lightbox and display 
		arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);

		Element.setTop('lightbox', lightboxTop);
		Element.show('lightbox');

		this.changeImage(imageNum);
	},

	//
	//	changeImage()
	//	Hide most elements and preload image in preparation for resizing image container.
	//
	changeImage: function(imageNum)
		{

		activeImage = imageNum;
		// update global var

		// hide elements during transition
		Element.show('loading');
		Element.hide('lightboxImage');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('imageDataContainer');
		Element.hide('numberDisplay');

		var imgPreloader = new Image();

		// once image is preloaded, resize image container
		imgPreloader.onload = function()
			{
			Element.setSrc('lightboxImage', imageArray[activeImage][0]);
			myLightbox.resizeImageContainer(imgPreloader.width, imgPreloader.height);
		}
		imgPreloader.src = imageArray[activeImage][0];
	},

	//
	//	resizeImageContainer()
	//
	resizeImageContainer: function(imgWidth, imgHeight)
		{

		// get current height and width
		this.wCur = Element.getWidth('outerImageContainer');
		this.hCur = Element.getHeight('outerImageContainer');

		// scalars based on change from old to new
		this.xScale = ((imgWidth + (borderSize * 2)) / this.wCur) * 100;
		this.yScale = ((imgHeight + (borderSize * 2)) / this.hCur) * 100;

		// calculate size difference between new and old image, and resize if necessary
		var wDiff = (this.wCur - borderSize * 2) - imgWidth;
		var hDiff = (this.hCur - borderSize * 2) - imgHeight;

		if (!( hDiff == 0))
		{
			new Effect.Scale('outerImageContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'});
		}
		if (!( wDiff == 0))
		{
			new Effect.Scale('outerImageContainer', this.xScale,
			{scaleY: false, delay: resizeDuration, duration: resizeDuration});
		}

		// if new and old image are same size and no scaling transition is necessary, 
		// do a quick pause to prevent image flicker.
		if ((hDiff == 0) && (wDiff == 0))
		{
			if (navigator.appVersion.indexOf("MSIE") != -1)
			{
				pause(250);
			}
			else
			{
				pause(100);
			}
		}

		Element.setHeight('prevLink', imgHeight);
		Element.setHeight('nextLink', imgHeight);
		Element.setWidth('imageDataContainer', imgWidth + (borderSize * 2));

		this.showImage();
	},

	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showImage: function()
		{
		Element.hide('loading');
		new Effect.Appear('lightboxImage', { duration: 0.5, queue: 'end', afterFinish: function()
			{
			myLightbox.updateDetails();
		} });
		this.preloadNeighborImages();
	},

	//
	//	updateDetails()
	//	Display caption, image number, and bottom nav.
	//
	updateDetails: function()
		{

		Element.show('caption');
		Element.setInnerHTML('caption', imageArray[activeImage][1]);

		// if image is part of set display 'Image x of x' 
		if (imageArray.length > 1)
		{
			Element.show('numberDisplay');
			Element.setInnerHTML('numberDisplay', "Image " + eval(activeImage + 1) + " of " + imageArray.length);
		}

		new Effect.Parallel(
				[ new Effect.SlideDown('imageDataContainer',
				{ sync: true, duration: resizeDuration + 0.25, from: 0.0, to: 1.0 }),
				  new Effect.Appear('imageDataContainer', { sync: true, duration: 1.0 }) ],
		{ duration: 0.65, afterFinish: function()
			{
			myLightbox.updateNav();
		} }
				);
	},

	//
	//	updateNav()
	//	Display appropriate previous and next hover navigation.
	//
	updateNav: function()
		{

		Element.show('hoverNav');

		// if not first image in set, display prev image button
		if (activeImage != 0)
		{
			Element.show('prevLink');
			document.getElementById('prevLink').onclick = function()
				{
				myLightbox.changeImage(activeImage - 1);
				return false;
			}
		}

		// if not last image in set, display next image button
		if (activeImage != (imageArray.length - 1))
		{
			Element.show('nextLink');
			document.getElementById('nextLink').onclick = function()
				{
				myLightbox.changeImage(activeImage + 1);
				return false;
			}
		}

		this.enableKeyboardNav();
	},

	//
	//	enableKeyboardNav()
	//
	enableKeyboardNav: function()
		{
		document.onkeydown = this.keyboardAction;
	},

	//
	//	disableKeyboardNav()
	//
	disableKeyboardNav: function()
		{
		document.onkeydown = '';
	},

	//
	//	keyboardAction()
	//
	keyboardAction: function(e)
		{
		var keycode;
		if (e == null)
		{ // ie
			keycode = event.keyCode;
		}
		else
		{ // mozilla
			keycode = e.which;
		}

		var key = String.fromCharCode(keycode).toLowerCase();

		if ((key == 'x') || (key == 'o') || (key == 'c'))
		{	// close lightbox
			myLightbox.end();
		}
		else if (key == 'p')
		{	// display previous image
			if (activeImage != 0)
			{
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage - 1);
			}
		}
		else if (key == 'n')
		{	// display next image
			if (activeImage != (imageArray.length - 1))
			{
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage + 1);
			}
		}

	},

	//
	//	preloadNeighborImages()
	//	Preload previous and next images.
	//
	preloadNeighborImages: function()
		{
		if ((imageArray.length - 1) > activeImage)
		{
			var preloadNextImage = new Image();
			preloadNextImage.src = imageArray[activeImage + 1][0];
		}
		if (activeImage > 0)
		{
			var preloadPrevImage = new Image();
			preloadPrevImage.src = imageArray[activeImage - 1][0];
		}
	},

	//
	//	end()
	//
	end: function()
		{
		this.disableKeyboardNav();
		Element.hide('lightbox');
		new Effect.Fade('overlay', { duration: 0.2});
		showSelectBoxes();
	}
}

// -----------------------------------------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll()
{

	var yScroll;

	if (self.pageYOffset)
	{
		yScroll = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop)
	{	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	}
	else if (document.body)
	{// all other Explorers
		yScroll = document.body.scrollTop;
	}

	var arrayPageScroll = new Array('', yScroll)
	return arrayPageScroll;
}

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize()
{

	var xScroll, yScroll;

	if (window.innerHeight && window.scrollMaxY)
	{
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	}
	else if (document.body.scrollHeight > document.body.offsetHeight)
	{ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	}
	else
	{ // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

	var windowWidth, windowHeight;
	if (self.innerHeight)
	{	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight)
	{ // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	}
	else if (document.body)
	{ // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	// for small pages with total height less then height of the viewport
	var pageHeight, pageWidth;
	if (yScroll < windowHeight)
	{
		pageHeight = windowHeight;
	}
	else
	{
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if (xScroll < windowWidth)
	{
		pageWidth = windowWidth;
	}
	else
	{
		pageWidth = xScroll;
	}

	return new Array(pageWidth, pageHeight, windowWidth, windowHeight)
}

// -----------------------------------------------------------------------------------

//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e)
{
	var keycode;
	if (e == null)
	{ // ie
		keycode = event.keyCode;
	}
	else
	{ // mozilla
		keycode = e.which;
	}
	var key = String.fromCharCode(keycode).toLowerCase();

	if (key == 'x')
	{
	}
}

// -----------------------------------------------------------------------------------

//
// listenKey()
//
function listenKey()
{
	document.onkeypress = getKey;
}

// ---------------------------------------------------

function showSelectBoxes()
{
	var selects = document.getElementsByTagName("select");
	for (var i = 0; i != selects.length; i++)
	{
		selects[i].style.visibility = "visible";
	}
}

// ---------------------------------------------------

function hideSelectBoxes()
{
	var selects = document.getElementsByTagName("select");
	for (var i = 0; i != selects.length; i++)
	{
		selects[i].style.visibility = "hidden";
	}
}

// ---------------------------------------------------

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis)
{
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true)
	{
		now = new Date();
		if (now.getTime() > exitTime)
			return;
	}
}

// ---------------------------------------------------

var myLightbox;
function initLightbox()
{
	myLightbox = new Lightbox();
}
Event.observe(window, 'load', initLightbox, false);
var Navigation =
{
	toggle: function(event)
	{
		var element = Event.element(event);
		var subBar = Element.getChildWithNodeName(element.parentNode, 'ul');
		if (subBar)
		{
			if (Element.visible(subBar))
			{
				Element.removeClassName(element, 'open');
				Element.addClassName(element, 'closed');
			}
			else
			{
				Element.removeClassName(element, 'closed');
				Element.addClassName(element, 'open');
			}
			var effect = this.getEffect(subBar);
			if (effect && typeof Effect != 'undefined')
				Effect.toggle(subBar, effect, {duration:0.5});
			else
				Element.toggle(subBar);
		}
		Event.stop(event);
	},

	getEffect: function(menu)
	{
		if (Element.hasClassName(menu, 'blind'))
			return 'blind';
		else if (menu.parentNode && menu.parentNode.classNames)
			return this.getEffect(menu.parentNode);
		else
			return null;
	},

	initDropdown: function(menu)
	{
		menu = $(menu);
		menu.select('.sub-bar').each(function(subBar)
		{
			subBar.firstChild.removeAttribute('onclick');
			Event.observe(subBar, 'click', function(event)
			{
				Event.stop(event);
				this.showDropdown(subBar);
			}.bindAsEventListener(this));
			Event.observe(subBar, 'mouseover', function()
			{
				this.showDropdown(subBar);
			}.bind(this));
			Event.observe(subBar, 'mouseout', function()
			{
				subBar.timeout = window.setTimeout(function()
				{
					this.hideDropdown(subBar);
				}.bind(this), 200);
				this.hideDropdown(subBar);
			}.bind(this));
		}.bind(this));
	},

	showDropdown: function(parent)
	{
		var subBar = parent.subBar;
		if (!subBar)
		{
			subBar = Element.getChildWithNodeName(parent, 'ul');
		}
		Position.prepare();
		var offset = Position.cumulativeOffset(parent);
		var dimensions = Element.getDimensions(parent);
		Element.setStyle(subBar,
		{
			position: 'absolute',
			left: offset[0] + 'px',
			top: (offset[1] + dimensions.height) + 'px'
		});
		Element.show(subBar);
		parent.subBar = subBar;
	},

	hideDropdown: function(subBar)
	{

	}
};/*******************************************************************************************************
 * shadower.js
 * Author: Erik Rasmussen
 * Email: erikwordpressplugins -at- gmail
 * Info: http://www.erik-rasmussen.com/blog/2006/12/04/the-shadower-realistic-drop-shadows-in-javascript/
 *******************************************************************************************************/
var Shadower =
{
	shadow: function(element)
	{
		element = $(element);
		var options = Object.extend(
		{
			distance: 8,
			angle: 130,
			opacity: 0.7,
			nestedShadows: 4,
			color: '#000000'
		}, arguments[1] || {});
		var positionStyle = Element.getStyle(element, 'position');
		var parent = element.parentNode;
		if (!element.shadowZIndex)
		{
			if (positionStyle != 'absolute' && positionStyle != 'fixed')
			{
				var placeHolder = this.idSafeClone(element);
				placeHolder.id = null;
				parent.insertBefore(placeHolder, element);
				Position.absolutize(element);
				Position.clone(placeHolder, element);
				element.style.margin = '0';
				placeHolder.style.visibility = 'hidden';
				positionStyle = 'absolute';
			}
			element.shadowZIndex = new Number(Element.getStyle(element, 'zIndex') ? Element.getStyle(element, 'zIndex') : 1);
			element.style.zIndex = element.shadowZIndex + options.nestedShadows;
		}
		if (arguments[2])  // force recreate
			this.deshadow(element);
		// create shadows
		if (!element.shadows)
		{
			element.shadows = new Array(options.nestedShadows);
			for (var i = 0; i < options.nestedShadows; i++)
			{
				var shadow = document.createElement('div');
				Element.hide(shadow);
				shadow.appendChild(document.createTextNode(' '));
				if (parent)
					parent.appendChild(shadow);
				shadow.style.position = positionStyle;
				shadow.style.backgroundColor = options.color;
				Element.setOpacity(shadow, options.opacity / options.nestedShadows);
				shadow.style.zIndex = element.shadowZIndex + i;
				element.shadows[i] = shadow;
			}
		}
		var legendHeight = this.getLegendHeight(element);
		// position shadows
		Position.prepare();
		var offsets = Position.positionedOffset(element);
		var topOffset = -Math.cos(-options.angle * Math.PI / 180) * options.distance;
		var leftOffset = -Math.sin(-options.angle * Math.PI / 180) * options.distance;
		element.shadows.each(function(shadow, i)
		{
			shadow.style.top = Math.ceil(offsets[1] + topOffset + i + (legendHeight / 2)) + 'px';
			shadow.style.left = (offsets[0] + leftOffset + i) + 'px';
			shadow.style.width = (element.offsetWidth - (2 * i)) + 'px';
			shadow.style.height = (element.offsetHeight - (2 * i) - (legendHeight / 2)) + 'px';
			Element.show(shadow);
		});
	},

	idSafeClone: function(node)
	{
		var clone = node.cloneNode(false);
		if (clone.hasAttribute && clone.hasAttribute('id'))
			clone.removeAttribute('id');
		var clonedChildren = $A(node.childNodes).collect(this.idSafeClone.bind(this));
		clonedChildren.each(function(child)
		{
			clone.appendChild(child);
		});
		return clone;
	},

	getLegendHeight: function(element)
	{
		if (element.nodeName.toLowerCase() == 'fieldset')
		{
			var legend;
			$A(element.childNodes).each(function(child)
			{
				if (child.nodeName.toLowerCase() == 'legend')
				{
					legend = child;
					throw $break;
				}
			});
			if (legend)
				return Element.getDimensions(legend).height;
		}
		return 0;
	},

	deshadow: function(element)
	{
		element = $(element);
		if (element.shadows)
		{
			element.shadows.each(Element.remove);
			element.shadows = null;
		}
	},

	shadowWithClass: function(cssClass, options)
	{
		$$('.' + cssClass).each(function(element)
		{
			this.shadow(element, options);
		}.bind(this));
	}
};

// check for prototype.js
if ((typeof Prototype == 'undefined') ||
    (typeof Element == 'undefined') ||
    (typeof Element.Methods == 'undefined') ||
    parseFloat(Prototype.Version.split(".")[0] + "." +
               Prototype.Version.split(".")[1]) < 1.5)
	throw("Shadower requires the Prototype JavaScript framework >= 1.5.0");

// the cross-browser opacity code below is borrowed from script.aculo.us
Element.getOpacity = function(element)
{
	var opacity;
	if (opacity = Element.getStyle(element, 'opacity'))
		return parseFloat(opacity);
	if (opacity = (Element.getStyle(element, 'filter') || '').match(/alpha\(opacity=(.*)\)/))
		if (opacity[1]) return parseFloat(opacity[1]) / 100;
	return 1.0;
};

Element.setOpacity = function(element, value)
{
	element = $(element);
	if (value == 1)
	{
		Element.setStyle(element, { opacity:
				(/Gecko/.test(navigator.userAgent) && !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ?
				0.999999 : null });
		if (/MSIE/.test(navigator.userAgent))
			Element.setStyle(element, {filter: Element.getStyle(element, 'filter').replace(/alpha\([^\)]*\)/gi, '')});
	}
	else
	{
		if (value < 0.00001) value = 0;
		Element.setStyle(element, {opacity: value});
		if (/MSIE/.test(navigator.userAgent))
			Element.setStyle(element,
			{ filter: Element.getStyle(element, 'filter').replace(/alpha\([^\)]*\)/gi, '') +
			          'alpha(opacity=' + value * 100 + ')' });
	}
}
		;// blank line needed for js concatenation
var Tooltip = Class.create();

Object.extend(Tooltip,
{
	useScriptaculous : false,
	delay: 200,
	hideDelay: 2000,
	tooltip: null,
	tooltippedClass: 'tooltipped',

	init: function()
	{
		$$('.' + Tooltip.tooltippedClass).each(function(element)
		{
			if (element.title)
			{
				this.set(element, element.title);
				element.removeAttribute('title');
				element.removeAttribute('alt');
			}
		}.bind(this));
	},
	set: function(element, tooltip)
	{
		new Tooltip(element, tooltip);
	},
	remove: function(element)
	{
		element = $(element);
		if (element)
		{
			if (element.tooltip && element.tooltip.unregister)
				element.tooltip.unregister();
			element.tooltip = null;
			Element.removeClassName(element, Tooltip.tooltippedClass);
		}
	},
	hide: function()
	{
		for (var div = $('tooltip'); div; div = $('tooltip'))
		{
			if (div.tooltip)
				div.tooltip.hide();
			else
			{
				if (typeof Shadower != 'undefined')
					Shadower.deshadow(div);
				Element.remove(div);
			}
		}
	}
});

Tooltip.prototype =
{
	initialize: function(element, tooltip)
	{
		this.element = $(element);
		if (tooltip)
			this.tooltip = tooltip;
		else if (this.element.title)
			this.tooltip = this.element.title;
		if (!Element.hasClassName(this.element, Tooltip.tooltippedClass))
			Element.addClassName(this.element, Tooltip.tooltippedClass);
		this.element.tooltip = this;
		this.register();
	},

	register: function()
	{
		Event.observe(this.element, 'mouseover', this.mouseover.bindAsEventListener(this));
		Event.observe(this.element, 'mouseout', this.mouseout.bindAsEventListener(this));
	},

	unregister: function()
	{
		this.hide();
		Event.stopObserving(this.element, 'mouseover', this.mouseover.bindAsEventListener(this));
		Event.stopObserving(this.element, 'mouseout', this.mouseout.bindAsEventListener(this));
	},

	mouseover: function(event)
	{
		// reset hide delay, used for cases when mouseout isn't called,
		// like when this.element getting overwritten via innerHTML
		if (this.hideTimout)
		{
			window.clearTimeout(this.hideTimout);
			this.hideTimout = window.setTimeout(this.hide.bind(this), Tooltip.hideDelay);
		}
		var mouse =
		{
			x: Event.pointerX(event),
			y: Event.pointerY(event)
		};
		// schedule show()
		this.timeout = window.setTimeout(function()
		{
			this.show(mouse);
		}.bind(this), Tooltip.delay);
	},

	mouseout: function()
	{
		if (this.timeout)
			window.clearTimeout(this.timeout);
		this.hide();
	},

	show: function(mouse)
	{
		if (this.tooltip)
		{
			window.clearTimeout(this.timeout);
			this.timeout = null;
			// hide any other tooltip
			new Insertion.Top(document.body, '<div id="tooltip" style="position:absolute;display:none;">' + this.tooltip + '</div>');
			this.div = $('tooltip');
			if (typeof P4 != 'undefined' && typeof P4.onTop != 'undefined')
				P4.onTop(this.div);
			if (Element.hasClassName(this.element, "tooltip-fixed"))
				this.div.style.bottom = 45 + 'px';
			else
				this.div.style.top = (mouse.y + 15) + 'px';
			this.div.style.left = mouse.x + 'px';

			if (this.useScriptaculous && typeof Effect != 'undefined' && typeof Effect.BlindDown != 'undefined')
			{
				new Effect.BlindDown(this.div,
				{
					duration: 0.3,
					scaleX: false,
					afterFinish: function()
					{
						var div = $('tooltip');
						if (div && typeof Shadower != 'undefined')
							Shadower.shadow(div);
					}
				});
			}
			else
			{
				Element.show(this.div);
				if (typeof Shadower != 'undefined')
					Shadower.shadow(this.div);
			}
		}
	},

	hide : function()
	{
		window.clearTimeout(this.hideTimout);
		this.hideTimout = null;
		if (this.div)
		{
			if (typeof Shadower != 'undefined')
				Shadower.deshadow(this.div);
			if (this.div.parentNode)
				Element.remove(this.div);
			this.div = null;
			return true;
		}
		else
			return false;
	}
};
var ImageSwitcher = Class.create({
	initialize: function(button, destination, alternateImage)
	{
		button = $(button);
		destination = $(destination);
		var image = new Image();
		image.observe('load', function()
		{
			button.observe('click', function(event)
			{
				event.stop();
				destination.src = image.src;
				var parent = destination.parentNode;
				if (parent.nodeName.toLowerCase() == 'a' && parent.rel == 'lightbox')
					parent.href = alternateImage;
			});
		});
		image.src = alternateImage;
	}
});//clump 
var Coupon = {
	chain:"",
	events:
	{
		issued: {name:'Instant Coupon Issued',event:'event15'}
	},
	issueInstantCoupons: function(link, chain, closeMsg)
	{
		var displayed = $('instantCoupons');
		if (! displayed || chain != this.chain)
		{
			this.chain = chain;
			if (displayed)
				Element.remove(displayed);
			var iframe = '<div id="instantCoupons"><a href="javascript:Coupon.close()">' + closeMsg + '</a><br/><iframe style="width:100%" src="' + link.href + '" frameborder="0"/></div>';
			this.insertCoupons(iframe);
			window.scrollTo(0, 0);
			this.sendOmnitureEvent('issued', link);
		}
		return false;
	},
	insertCoupons: function(content)
	{
		$('content').insert({before:content});
	},
	close: function()
	{
		Element.remove($('instantCoupons'));
	},
	sendOmnitureEvent: function(eventId, element)
	{
		if (eventId && typeof s_account != 'undefined' && typeof s_gi != 'undefined')
		{
			var event = this.events[eventId];
			var s = s_gi(s_account);
			s.linkTrackVars = 'events';
			s.linkTrackEvents = event.event;
			if (this.pageName)
				s.prop1 = this.pageName;
			s.tl(element ? element : true, 'o', event.name);
		}
	}
};
function ClickableRating(element)
{
	var displayed = 0;
	var ratingInput = $('rating');
	var rating = ratingInput.value ? ratingInput.value : 0;
	var description = $('ratingDescription');
	var display = function(value)
		{
		element.removeClassName('r' + displayed);
		displayed = value;
		element.addClassName('r' + displayed);
		var desc = ClickableRating.description[value];
		description.innerHTML = desc ? desc : '';
	};
	display(rating);
	element.select('.star').each(function(star, index)
		{
		star.observe('mouseover', function()
			{
			display(index + 1);
		});
		star.observe('mouseout', function()
			{
			display(rating ? rating : 0);
		});
		star.observe('click', function()
			{
			rating = index + 1;
			ratingInput.value = rating;
			display(rating);
		});
	});
}
document.observe('dom:loaded', function()
	{
	var ratingElement = $$('form#review .rating')[0];
	if (ratingElement)
		new ClickableRating(ratingElement);
	$$('.review-display').each(function(review)
		{
		var id = review.id.substring(6);
		var makeOnClick = function(helpful)
			{
			return function(event)
				{
				event.stop();
				new Ajax.Request("/reviewVote",
				{
					parameters: $H({
						id: review.id.substring(6),
						helpful: helpful
					}).toQueryString(),
					onSuccess: function(xmlResponse, xjson)
						{
						var json = eval(xmlResponse.responseText);
						if (json && json.results)
						{
							var vote = review.select('.vote')[0];
							if (vote)
								vote.remove();
							var results = review.select('.votingResults')[0];
							if (results)
								results.innerHTML = json.results;
							_gaq.push(['_trackEvent', 'Marketing', 'Review Vote', 'Helpful', helpful ? 1 : 0]);
						}
					}
				});

			}
		};
		var helpfulVote = review.select('.helpfulVote')[0];
		if (helpfulVote)
			helpfulVote.observe('click', makeOnClick(true));
		var unhelpfulVote = review.select('.unhelpfulVote')[0];
		if (unhelpfulVote)
			unhelpfulVote.observe('click', makeOnClick(false));
	});
	function setUriParams(params)
	{
		var location = document.location.href;
		var poundIndex = location.indexOf('#');
		if (poundIndex >= 0)
			location = location.substring(0, poundIndex);
		var questionIndex = location.indexOf('?');
		if (questionIndex >= 0)
			location = location.substring(0, questionIndex);
		document.location.href = location + '?' + $H(params).toQueryString() + '#reviews';
	}

	function prepSortButton(button, sort)
	{
		button = $(button);
		if (button)
		{
			button.observe('click', function(event)
				{
				event.stop();
				setUriParams({reviewSort:sort});
			});
		}
	}

	prepSortButton('reviews_sortByDate', 'date');
	prepSortButton('reviews_sortByHelpfulness', 'helpfulness');
	prepSortButton('reviews_sortByRating', 'rating');
});document.observe('dom:loaded', function()
	{
	function setUriParams(params)
	{
		var location = document.location.href;
		var poundIndex = location.indexOf('#');
		if (poundIndex >= 0)
			location = location.substring(0, poundIndex);
		var questionIndex = location.indexOf('?');
		if (questionIndex >= 0)
			location = location.substring(0, questionIndex);
		document.location.href = location + '?' + $H(params).toQueryString();
	}

	var select = $$('select.sort')[0];
	if (select)
	{
		select.observe('change', function()
			{
			setUriParams({sort: select.getValue()});
		})
	}
});
document.observe('dom:loaded', function()
{
	if (typeof facebookAppId != 'undefined')
	{
		$$("a.facebook-like").each(function(element)
		                           {
			                           var like = ['<fb:like href="'];
			                           like.push(element.href);
			                           like.push('"');
			                           if (element.hasClassName('button-count'))
				                           like.push(' layout="button_count"');
			                           else if (element.hasClassName('box-count'))
				                           like.push(' layout="box_count"');
			                           if (element.hasClassName('hide-faces'))
				                           like.push(' show_faces="false"');
			                           if (element.hasClassName('recommend'))
				                           like.push(' action="recommend"');
			                           if (!element.hasClassName('no-send'))
				                           like.push(' send="true"');
			                           var width = element.getStyle('width');
			                           if (width && width.indexOf('px') > 0)
				                           like.push(' width="' + width.substring(0, width.indexOf('px')) + '"');
			                           like.push('></fb:like>');
			                           var span = document.createElement('span');
			                           span.innerHTML = like.join('');
			                           element.parentNode.replaceChild(span, element);
		                           });
		window.fbAsyncInit = function()
		{
			FB.init({appId: facebookAppId, status: true, cookie: true, xfbml: true});
			FB.Event.subscribe('edge.create', function(href, response)
			{
				if (typeof _gaq != 'undefined' && fbLikeTitle)
					_gaq.push(['_trackEvent', 'Marketing', 'Facebook Like', fbLikeTitle]);
			});
		};
		var body = $$('body')[0];
		var fbRoot = document.createElement('div');
		fbRoot.id = 'fb-root';
		body.appendChild(fbRoot);
		(function()
		{
			var e = document.createElement('script');
			e.async = true;
			e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
			body.appendChild(e);
		}());
	}
});document.observe('dom:loaded', function()
{
	$$("div.g-plusone").each(function(element)
	                         {
		                         if (element.hasClassName('small'))
		                         {
			                         element.setAttribute('data-size', 'small');
			                         element.removeClassName('small');
		                         }
		                         else if (element.hasClassName('medium'))
		                         {
			                         element.setAttribute('data-size', 'medium');
			                         element.removeClassName('medium');
		                         }
		                         else if (element.hasClassName('tall'))
		                         {
			                         element.setAttribute('data-size', 'tall');
			                         element.removeClassName('tall');
		                         }
		                         if (element.hasClassName('hide-count'))
		                         {
			                         element.setAttribute('data-count', 'false');
			                         element.removeClassName('hide-count');
		                         }
	                         });
	var script = document.createElement('script');
	script.type = 'text/javascript';
	script.async = true;
	script.src = 'https://apis.google.com/js/plusone.js';
	var firstScript = document.getElementsByTagName('script')[0];
	firstScript.parentNode.insertBefore(script, firstScript);
});/***************************
 * Recommended use:
 *
 * Define a menu structure like this:
 * <ul id="mymenu">
 *	 <li>
 *		 <a href="#">First Dropdown</a>
 *		 <ul>
 *			 <li><a href="/first-item.html">First item</a></li>
 *			 <li><a href="/second-item.html">Second item</a></li>
 *		 </ul>
 *	 </li>
 *	 <li>
 *		 <a href="#">Second Dropdown</a>
 *		 <ul>
 *			 <li><a href="/third-item.html">Third item</a></li>
 *			 <li><a href="/fourth-item.html">Fourth item</a></li>
 *		 </ul>
 *	 </li>
 * </ul>
 *
 * and then call new Menu('mymenu').	If you want it to open sideways first, you initialize it with
 * new Menu('mymenu', {sidewaysDepth:1});
 *
 * If you want to use a different html structure, you must provide functions (findItems, findLink, and findSubmenu)
 * to the constructor to allow it to navigate through your structure.
 ***************************/
var Menu = Class.create();
Menu.prototype =
{
	initialize: function(baseNode, options)
	{
		baseNode = $(baseNode);
		this.options =
		{
			findItems: Menu.defaultFindItems, // allows for different menu structures
			findLink: Menu.defaultFindLink, // allows for different menu structures
			findSubmenu: Menu.defaultFindSubmenu, // allows for different menu structures
			sidewaysDepth: 2, // default to drop DOWN menu at root level, and sideways after that
			depth: 0
		};
		if (options) Object.extend(this.options, options);

		this.ul = baseNode.nodeName.toLowerCase() == 'ul' ? baseNode : this.options.findSubmenu(baseNode);
		this.submenus = [];
		this.options.findItems(this.ul).each(function(item)
		{
			var submenu = this.options.findSubmenu(item);
			if (submenu)
			{
				var menu = new Menu(submenu, Object.extend(Object.clone(this.options), {depth: this.options.depth + 1}));
				menu.listenToItem(item);
				menu.parentMenu = this;
				this.submenus.push(menu);
			}
		}.bind(this));
		for (var e = this.ul; e; e = e.parentNode)
		{
			if (e.hasClassName && e.hasClassName('positioning-disabled'))
			{
				this.isPositioningDisabled = true;
				break;
			}
		}
	},

	listenToItem: function(item)
	{
		this.triggerItem = item;
		item.observe('mouseover', this.mouseover.bindAsEventListener(this));
		item.observe('mouseout', this.mouseout.bindAsEventListener(this));
	},

	mouseover: function()
	{
		if (this.timeout)
		{
			window.clearTimeout(this.timeout);
			this.timeout = null;
		}
		// show menu
		var offset = Position.positionedOffset(this.triggerItem);
		var dimensions = this.triggerItem.getDimensions();
		var style = { position: 'absolute' };
		if (!this.ul.visible())	// showing first time
		{
			if (!this.isPositioningDisabled)
			{
				if (this.isSideways())
				{
					// figure if we need to open to left instead of right
					Position.prepare();
					var cumulativeOffset = Position.cumulativeOffset(this.triggerItem);
					var parentOffset = Position.cumulativeOffset(Position.offsetParent(this.triggerItem));
					var ulDimensions = this.ul.getDimensions();
					var scroll = Menu.getWindowScroll(window);
					var left;
					if (cumulativeOffset[0] + dimensions.width + ulDimensions.width > scroll.left + scroll.width)
					{
						// open to left
						left = offset[0] - ulDimensions.width;
					}
					else
					{
						// open to right
						left = offset[0] + dimensions.width;
					}
					// figure out if we need to move it up because it's off the screen
					var absTop = offset[1] + parentOffset[1];
					var toBottom = scroll.top + scroll.height - (absTop + ulDimensions.height);
					if (toBottom < 0)
						absTop += toBottom;  // move up
					if (absTop < scroll.top)
						absTop = scroll.top; // but not off the top of the screen!
					style.left = left + 'px';
					style.top = (absTop - parentOffset[1]) + 'px';
				}
				else
				{
					style.left = offset[0] + 'px';
					style.top = (offset[1] + dimensions.height) + 'px';
				}
				this.ul.setStyle(style);
			}
		}
		this.ul.show();
		this.triggerItem.removeClassName('closed');
		this.triggerItem.addClassName('open');
	},

	mouseout: function()
	{
		this.timeout = window.setTimeout(this.hide.bind(this), 50);
	},

	hide: function()
	{
		this.ul.hide();
		this.triggerItem.removeClassName('open');
		this.triggerItem.addClassName('closed');
	},

	isSideways: function()
	{
		return this.options.depth >= this.options.sidewaysDepth;
	}
};

Menu.defaultFindItems = function(menu)
{
	return menu.descendants();
};

Menu.defaultFindLink = function(menuItem)
{
	return menuItem.descendants().detect(function(child)
	{
		return child.nodeName.toLowerCase() == 'a';
	});
};

Menu.defaultFindSubmenu = function(menuItem)
{
	return menuItem.descendants().detect(function(child)
	{
		return child.nodeName.toLowerCase() == 'ul';
	});
};

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

Menu.jsDropdowns = {};
Menu.findSubmenuFromJs = function(item)
{
	var submenu = Menu.defaultFindSubmenu(item);
	if (!submenu && item.hasClassName('js-dropdown') && item.id)
	{
		var submenuHtml = Menu.jsDropdowns[item.id];
		if (submenuHtml)
		{
			new Insertion.Bottom(item, submenuHtml);
			submenu = Menu.defaultFindSubmenu(item);
		}
	}
	return submenu;
};// blank line needed for js concatenation
document.observe('dom:loaded', function()
{
	// if we want more than one panel/tab group on a page, we'll have to rework this
	var panels = $$('.panel');
	if (panels.length == 0)
		return;
	var outerContainer = $$('.panel-outer-container')[0];
	var container = $$('.panel-container')[0];
	var animate = Element.hasClassName(container, 'animate');
	var tabGroups = $$('.tab-group');
	var nextButtons = tabGroups.invoke('select', '.next').flatten();
	var previousButtons = tabGroups.invoke('select', '.previous').flatten();
	var selected;
	var eventTracking = null;
	if (container)
	{
		Element.classNames(container).each(function(className)
		                                   {
			                                   var result = /eventTracking-(.+)/.exec(className);
			                                   if (result)
				                                   eventTracking = result[1].gsub(/-/, ' ');
		                                   });
	}

	function select(panel, defaultSelected)
	{
		function after()
		{
			if (nextButtons.length)
			{
				if (panel.nextPanel)
					nextButtons.invoke('removeClassName', 'disabled');
				else
					nextButtons.invoke('addClassName', 'disabled');
			}
			if (previousButtons.length)
			{
				if (panel.previousPanel)
					previousButtons.invoke('removeClassName', 'disabled');
				else
					previousButtons.invoke('addClassName', 'disabled');
			}
			if (selected)
				selected.tabs.invoke('removeClassName', 'selected');
			panel.tabs.invoke('addClassName', 'selected');
			selected = panel;
			if (!defaultSelected && eventTracking && typeof _gaq != 'undefined')
				_gaq.push(['_trackEvent', 'Marketing', 'Panel Change', panel.eventName]);
		}

		if (animate)
		{
			new Effect.Parallel([
				                    new Effect.Morph(container, {
					                    style: 'left: ' + (-panel.left) + 'px;height:' + panel.height + 'px;',
					                    sync: true
				                    }),
				                    new Effect.Morph(outerContainer, {
					                    style: 'height:' + panel.height + 'px;',
					                    sync: true
				                    })
			                    ], { afterFinish: after });
		}
		else
		{
			if (container)
			{
				container.setStyle({
					                   left: -panel.left + 'px',
					                   height: panel.height + 'px'
				                   });
			}
			if (outerContainer)
			{
				outerContainer.setStyle({
					                        height: panel.height + 'px'
				                        });
			}
			after();
		}
	}

	function getText(element)
	{
		if (element.nodeName.toLowerCase() == '#text')
			return document.all ? element.data : element.textContent;
		else
		{
			for (var i = 0; i < element.childNodes.length; i++)
			{
				var text = getText(element.childNodes[i]);
				if (text)
					return text;
			}
			return null;
		}
	}

	panels.each(function(panel, i)
	            {
		            panel.tabs = [];
		            tabGroups.each(function(tabGroup)
		                           {
			                           panel.tabs.push(tabGroup.select('.tab')[i]);
		                           });
		            panel.left = panel.positionedOffset().left;
		            panel.height = panel.getDimensions().height;
		            if (panel.tabs[0].hasClassName('selected'))
			            selected = panel;
		            if (i > 0)
			            panel.previousPanel = panels[i - 1];
		            if (i + 1 < panels.length)
			            panel.nextPanel = panels[i + 1];
		            panel.tabs.each(function(tab)
		                            {
			                            panel.eventName = eventTracking ? eventTracking + ' - ' + getText(tab) : null;
			                            tab.observe('click', function(event)
			                            {
				                            event.stop();
				                            select(panel, false);
			                            })
		                            });
		            panel.selectPanel = function()
		            {
			            select(panel, false);
		            }
	            });
	select(selected ? selected : panels[0], true);

	function arrows(buttons, name)
	{
		buttons.each(function(button)
		             {
			             button.observe('click', function(event)
			             {
				             event.stop();
				             if (selected && selected[name + 'Panel'])
					             select(selected[name + 'Panel'], false);
			             });
		             });
	}

	arrows(nextButtons, 'next');
	arrows(previousButtons, 'previous');

	var hash = window.location.hash;
	if (hash.startsWith('#showPanel-'))
		selectContainingPanel(hash.substr(11));
});
function selectContainingPanel(element)
{
	element = $(element);
	while (element.parentNode)
	{
		if (Element.hasClassName(element, 'panel'))
		{
			element.selectPanel();
			Element.scrollTo(element);
			break;
		}
		element = element.parentNode;
	}
}