/*  Prototype JavaScript framework, version 1.6.0.2
 *  (c) 2005-2008 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
	Version: '1.6.0.2',

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

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

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

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

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


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

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

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

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

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

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

		klass.prototype.constructor = klass;

		return klass;
	}
};

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

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

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

		return this;
	}
};

var Abstract = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Function.prototype.defer = Function.prototype.delay.curry(0.01);

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

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

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

		return returnValue;
	}
};

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

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

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

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

		this.registerCallback();
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return camelized;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

if (Prototype.Browser.WebKit)
{
	$A = function(iterable)
	{
		if (!iterable) return [];
		if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
		    iterable.toArray) return iterable.toArray();
		var length = iterable.length || 0, results = new Array(length);
		while (length--) results[length] = iterable[length];
		return results;
	};
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		get: function(key)
		{
			return this._object[key];
		},

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

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

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

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

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

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

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

		toQueryString: function()
		{
			return this.map(function(pair)
			{
				var key = encodeURIComponent(pair.key), values = pair.value;

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

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

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

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

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

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

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

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

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

	activeRequestCount: 0
};

Ajax.Responders = {
	responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

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

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

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

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

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

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

		this.parameters = params;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	status:      0,
	statusText: '',

	getStatus: Ajax.Request.prototype.getStatus,

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

	getHeader: Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

		$super(url, options);
	},

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

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

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

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

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

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

		this.start();
	},

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

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

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

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

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

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

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

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

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

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

Element.cache = { };

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

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

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

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

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

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

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

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

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

		var content, insert, tagName, childNodes;

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

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

			content = Object.toHTML(content);

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

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

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

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

		return element;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		if (element.sourceIndex && !Prototype.Browser.Opera)
		{
			var e = element.sourceIndex, a = ancestor.sourceIndex,
					nextAncestor = ancestor.nextSibling;
			if (!nextAncestor)
			{
				do {
					ancestor = ancestor.parentNode;
				}
				while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
			}
			if (nextAncestor && nextAncestor.sourceIndex)
				return (e > a && e < nextAncestor.sourceIndex);
		}

		while (element = element.parentNode)
			if (element == originalAncestor) return true;
		return false;
	},

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

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

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

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

		return element;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return $(document.body);
	},

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

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

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

		}
		while (element = element.offsetParent);

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

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

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

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

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

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

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

Element.Methods.identify.counter = 1;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	Element._attributeTranslations.has = {};

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

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

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

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

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

		return element;
	};

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

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

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

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

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

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

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

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

		element._extendedByPrototype = Prototype.emptyFunction;
		return element;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

document.viewport = {
	getDimensions: function()
	{
		var dimensions = { };
		var B = Prototype.Browser;
		$w('width height').each(function(d)
		{
			var D = d.capitalize();
			dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
			                (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
		});
		return dimensions;
	},

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

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

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

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

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

		var e = this.expression;

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

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

		return true;
	},

	compileMatcher: function()
	{
		if (this.shouldUseXPath())
			return this.compileXPathMatcher();

		var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
				c = Selector.criteria, le, p, m;

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

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

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

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

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

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

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

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

	findElements: function(root)
	{
		root = root || document;
		if (this.xpath) return document._getElementsByXPath(this.xpath, root);
		return this.matcher(root);
	},

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

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

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

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

		return match;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return matchingInputs;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	cache: { },

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

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

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

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

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

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

		element: function(event)
		{
			var node = Event.extend(event).target;
			return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
		},

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

		pointer: function(event)
		{
			return {
				x: event.pageX || (event.clientX +
				                   (document.documentElement.scrollLeft || document.body.scrollLeft)),
				y: event.pageY || (event.clientY +
				                   (document.documentElement.scrollTop || document.body.scrollTop))
			};
		},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	if (window.attachEvent)
	{
		window.attachEvent("onunload", destroyCache);
	}

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

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

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

			return element;
		},

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

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

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

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

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

			destroyWrapper(id, eventName, handler);

			return element;
		},

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

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

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

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

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

Object.extend(Event, Event.Methods);

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

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

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

	var timer;

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

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

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

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

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

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	cumulativeOffset: Element.Methods.cumulativeOffset,

	positionedOffset: Element.Methods.positionedOffset,

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

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

	realOffset: Element.Methods.cumulativeScrollOffset,

	offsetParent: Element.Methods.getOffsetParent,

	page: Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.addMethods();// 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 ()
				{
					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 params =
			{
				o: chain,
				referrer: document.location
			};
			var iframe = '<div id="instantCoupons"><a href="javascript:Coupon.close()">' + closeMsg + '</a><br/><iframe style="width:100%" src="/issueInstantCoupons.html?' + $H(params).toQueryString() + '" frameborder="0"/></div>';
			this.insertCoupons(iframe);
			window.scrollTo(0, 0);
			this.sendOmnitureEvent('issued', link);
		}
	},
	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).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"');
			                           if (element.hasClassName('show-faces'))
				                           like.push(' show_faces="false"');
			                           if (element.hasClassName('recommend'))
				                           like.push(' action="recommend"');
			                           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);
		}());
	}
});// blank line needed for js concatenation
var SearchInPlace = Class.create({
	searchDelay: 1000,
	resultsId: 'searchInPlaceResults',

	initialize: function(searchBox)
	{
		if (!searchBox)
			searchBox = 'search';
		this.input = $(searchBox);
		if (!this.input)
			throw 'cannot find search box: "' + searchBox + '"';
		this.defaultValue = this.input.value;
		Event.observe(this.input, 'focus', this.focus.bind(this));
		Event.observe(this.input, 'blur', this.blur.bind(this));
		if (Element.hasClassName(this.input, 'search-in-place'))
			Event.observe(this.input, 'keyup', this.keyup.bindAsEventListener(this));
	},

	focus: function()
	{
		Element.addClassName(this.input, 'focused');
		if (this.input.value == this.defaultValue)
			this.input.value = '';
	},

	blur: function()
	{
		this.cancelSearch();
		window.setTimeout(this.hideResults.bind(this), 5);
		Element.removeClassName(this.input, 'focused');
		if (this.input.value == '')
			this.input.value = this.defaultValue;
	},

	keyup: function(event)
	{
		switch (event.keyCode)
				{
			case Event.KEY_UP:
				this.selectPrevious();
				break;
			case Event.KEY_DOWN:
				this.selectNext();
				break;
			case Event.KEY_RETURN:
				var selected = this.getSelected();
				if (selected)
					this.launch(selected.id);
				break;
			default:
				this.cancelSearch();
				this.timer = window.setTimeout(this.search.bind(this), this.searchDelay);
				break;
		}
		Event.stop(event);
	},

	getSelected: function()
	{
		return this.selectedIndex == null || !this.items ? null : this.items[this.selectedIndex];
	},

	selectNext: function()
	{
		if (this.items && this.items.length > 0)
		{
			if (this.selectedIndex == null)
			{
				this.selectedIndex = 0;
				Element.addClassName(this.items[this.selectedIndex], 'selected');
			}
			else
			{
				Element.removeClassName(this.items[this.selectedIndex], 'selected');
				this.selectedIndex = (this.selectedIndex + 1) % this.items.length;
				Element.addClassName(this.items[this.selectedIndex], 'selected');
			}
		}
	},

	selectPrevious: function()
	{
		if (this.items && this.items.length > 0)
		{
			if (this.selectedIndex == null)
			{
				this.selectedIndex = this.items.length - 1;
				Element.addClassName(this.items[this.selectedIndex], 'selected');
			}
			else if (this.selectedIndex == 0)
			{
				Element.removeClassName(this.items[this.selectedIndex], 'selected');
				this.selectedIndex = null;
			}
			else if (this.selectedIndex - 1 >= 0)
				{
					Element.removeClassName(this.items[this.selectedIndex], 'selected');
					this.selectedIndex--;
					Element.addClassName(this.items[this.selectedIndex], 'selected');
				}
		}
	},

	cancelSearch: function()
	{
		if (this.timer)
			window.clearTimeout(this.timer);
	},

	hideResults: function()
	{
		var results = $(this.resultsId);
		if (results)
			Element.remove(results);
	},

	launch: function(url)
	{
		if (url == 'showAll')
			$('quickSearch').submit();
		else
			document.location = url;
	},

	search: function()
	{
		var query = this.input.value;
		if (query && query.length > 0)
		{
			new Ajax.Request('/searchInPlace',
			{
				parameters: $H({q:query}).toQueryString(),
				onSuccess: function(transport)
				{
					this.hideResults();
					new Insertion.After(this.input, transport.responseText);
					var results = $(this.resultsId);
					this.items = results.select('selectable');
					this.selectedIndex = null;
					this.items.each(function(item, index)
					{
						Event.observe(item, 'mouseover', function()
						{
							if (index != this.selectedIndex)
							{
								if (this.selectedIndex != null)
									Element.removeClassName(this.items[this.selectedIndex], 'selected');
								this.selectedIndex = index;
								Element.addClassName(this.items[this.selectedIndex], 'selected');
							}
						}.bind(this));
						Event.observe(item, 'mousedown', function()
						{
							this.launch(item.id);
						}.bind(this));
					}.bind(this));
				}.bind(this)
			});
		}
	}
});/***************************
 * 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;
};