/*  Prototype JavaScript framework, version 1.7
 *  (c) 2005-2010 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/
 
/*global clearInterval: false, clearTimeout: false, document: false, event: false, frames: false, history: false, Image: false, location: false, name: false, navigator: false, Option: false, parent: false, screen: false, setInterval: false, setTimeout: false, window: false, XMLHttpRequest: false */
 
var Prototype = {

	Version: '1.7',

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

	BrowserFeatures: {
		XPath: !! document.evaluate,

		SelectorsAPI: !! document.querySelector,

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

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

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

			div = form = null;

			return isSupported;
		})()
	},

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

	emptyFunction: function () {},

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

if (Prototype.Browser.MobileSafari) Prototype.BrowserFeatures.SpecificElementExtensions = false; /* Based on Alex Arnell's inheritance implementation. */

var Class = (function () {

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

	function subclass() {};

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

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

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

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

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

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

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

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

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

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

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

		return this;
	}

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

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

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

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

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

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

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

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

		var _class = _toString.call(value);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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



(function (proto) {


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


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

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

})(Date.prototype);


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

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

		this.registerCallback();
	},

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

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

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

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

Object.extend(String.prototype, (function () {
	var NATIVE_JSON_PARSE_SUPPORT = window.JSON && typeof JSON.parse === 'function' && JSON.parse('{"test": true}').test;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

var $break = {};

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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









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

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


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

Array.from = $A;


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

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

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

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

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

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

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

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

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

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

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


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

	function size() {
		return this.length;
	}

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

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

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

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

	Object.extend(arrayProto, Enumerable);

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

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

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

	if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

	if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
	if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
})();

function $H(object) {
	return new Hash(object);
};

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


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

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

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

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

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



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

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

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

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

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

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

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

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

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

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

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

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

	function succ() {
		return this + 1;
	}

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

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

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

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

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

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

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

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

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

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

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

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



var Abstract = {};


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

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

		return returnValue;
	}
};

var Ajax = {
	getTransport: function () {
		return Try.these(

		function () {
			return new XMLHttpRequest()
		}, function () {
			return new ActiveXObject('Msxml2.XMLHTTP')
		}, function () {
			return new ActiveXObject('Microsoft.XMLHTTP')
		}) || false;
	},

	activeRequestCount: 0
};

Ajax.Responders = {
	responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

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

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

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

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

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

		this.parameters = params.toQueryParams();

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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








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

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

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

	status: 0,

	statusText: '',

	getStatus: Ajax.Request.prototype.getStatus,

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

	getHeader: Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

		$super(url, options);
	},

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

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

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

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

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

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

		this.start();
	},

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

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

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

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

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


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

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

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

if (!Node) var Node = {};

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



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

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

	var element = global.Element;

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

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

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

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

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

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

})(this);

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

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

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

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

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

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

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

	update: (function () {

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

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

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

		var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;

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


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

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

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

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

			content = Object.toHTML(content);

			var tagName = element.tagName.toUpperCase();

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

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

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

		return update;
	})(),

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

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

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

		var content, insert, tagName, childNodes;

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

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

			content = Object.toHTML(content);

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

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

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

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

		return element;
	},

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

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

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

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

		return elements;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return false;
	},

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

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

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

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

		return element;
	},

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

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

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

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

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

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

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

		element = $(element);

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

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

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

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

	childElements: Element.Methods.immediateDescendants
});

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

if (Prototype.Browser.Opera) {
	Element.Methods.getStyle = Element.Methods.getStyle.wrap(

	function (proceed, element, style) {
		switch (style) {
		case 'height':
		case 'width':
			if (!Element.visible(element)) return null;

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

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

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

	Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(

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

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

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

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

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

	Element._attributeTranslations = (function () {

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

		el.setAttribute(classProp, 'x');

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

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

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

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

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

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

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

	Element._attributeTranslations.has = {};

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

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

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

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

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

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

		return element;
	};
}

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

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

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

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

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

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

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

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

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

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

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

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

Element.Methods.ByTag = {};

Object.extend(Element, Element.Methods);

(function (div) {

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

	div = null;

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

Element.extend = (function () {

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

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

	var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

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

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

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

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

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

		extendElementWith(element, methods);

		element._extendedByPrototype = Prototype.emptyFunction;
		return element;

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

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

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

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

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

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

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

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

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

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

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

		element = null;
		return proto;
	}

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

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

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

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

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


document.viewport = {

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

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

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

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

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

		return document.documentElement;
	}

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

		property[D] = 'client' + D;

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

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

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


Element.Storage = {
	UID: 1
};

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

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

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

		return Element.Storage[uid];
	},

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

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

		return element;
	},

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

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

		return value;
	},

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

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

		purgeElement(element);

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

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

		return null;
	}
});

(function () {

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

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

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

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

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

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

			return value;
		}

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

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

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

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

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

		return 0;
	}

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

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

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

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

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

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

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

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

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

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

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

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

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

			element.store('prototype_original_styles', originalStyles);

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

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

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

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

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

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

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

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

			this._prepared = true;
		},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

				return height + pTop + pBottom;
			},

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

				return width + pLeft + pRight;
			},

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

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

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

				if (bHeight <= 0) return 0;

				return bHeight + mTop + mBottom;
			},

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

				if (bWidth <= 0) return 0;

				return bWidth + mLeft + mRight;
			},

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

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

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

				return pHeight - mHeight - offset.top;
			},

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

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

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

				return pWidth - mWidth - offset.left;
			},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		Element.setStyle(element, newStyles);

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

		Element.setStyle(element, originalStyles);

		return dimensions;
	}

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

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

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

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

		return $(document.body);
	}


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

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

		var layout = element.getLayout();

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

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

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

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

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

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

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

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

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

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

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

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

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

		return element;
	}

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

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

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

	if (Prototype.Browser.IE) {
		getOffsetParent = getOffsetParent.wrap(

		function (proceed, element) {
			element = $(element);

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

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

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

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

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

			element.setStyle({
				position: 'relative'
			});
			var value = proceed(element);
			element.setStyle({
				position: position
			});
			return value;
		});
	}
	else if (Prototype.Browser.Webkit) {
		cumulativeOffset = function (element) {
			element = $(element);
			var valueT = 0,
				valueL = 0;
			do {
				valueT += element.offsetTop || 0;
				valueL += element.offsetLeft || 0;
				if (element.offsetParent == document.body) if (Element.getStyle(element, 'position') == 'absolute') break;

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

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


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

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

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

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

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

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

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

Prototype.Selector = (function () {

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

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

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

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

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


	var K = Prototype.K;

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

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

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

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

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

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

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

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

				parts.push(m[1]);

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

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

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

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

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

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

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

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

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

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

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

			if (!checkSet) {
				checkSet = set;
			}

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

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

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

			return results;
		};

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

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

		return results;
	};

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

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

		if (!expr) {
			return [];
		}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

						if (!anyFound) {
							return [];
						}

						break;
					}
				}
			}

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

			old = expr;
		}

		return curLoop;
	};

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

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

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

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

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

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

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

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

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

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

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

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

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

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

				if (isXML) {
					return match;
				}

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

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

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

				match[0] = done++;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	var origPOS = Expr.match.POS;

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

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

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

			return array;
		};

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

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

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

			return ret;
		};
	}

	var sortOrder;

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

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

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

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

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

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

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

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

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

	(function () {

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

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

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

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

					results = tmp;
				}

				return results;
			};
		}

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

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

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

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

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

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

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

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

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

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

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

		div.lastChild.className = "e";

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

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

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

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

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

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

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

					elem = elem[dir];
				}

				checkSet[i] = match;
			}
		}
	}

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

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

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

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

					elem = elem[dir];
				}

				checkSet[i] = match;
			}
		}
	}

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

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

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

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

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

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

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


	window.Sizzle = Sizzle;

})();

Prototype._original_property = window.Sizzle;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return matchingInputs;
	},

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

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

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

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

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

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

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

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

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

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

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


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

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

Form.Element.Methods = {

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

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

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

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

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

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

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

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

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

var Field = Form.Element;

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

		cache: {}
	};

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



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

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

	var _isButton;

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

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

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

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

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

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

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

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

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

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

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

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

		return Element.extend(node);
	}

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

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

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

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

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

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

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


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

		event.stopped = true;
	}


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

		element: element,
		findElement: findElement,

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

		stop: stop
	};

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

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

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

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

			if (!isIELegacyEvent(event)) return event;

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

			var pointer = Event.pointer(event);

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

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

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

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

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

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

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

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

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

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

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

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

						if (parent === element) return;

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

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

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

	var CACHE = [];

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

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


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

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

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

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

		if (!responder) return element;

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

			if (element.addEventListener) element.addEventListener(actualEventName, responder, false);
			else element.attachEvent("on" + actualEventName, responder);
		}

		return element;
	}

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

		var registry = Element.retrieve(element, 'prototype_event_registry');
		if (!registry) return element;

		if (!eventName) {
			registry.each(function (pair) {
				var eventName = pair.key;
				stopObserving(element, eventName);
			});
			return element;
		}

		var responders = registry.get(eventName);
		if (!responders) return element;

		if (!handler) {
			responders.each(function (r) {
				stopObserving(element, eventName, r.handler);
			});
			return element;
		}

		var i = responders.length,
			responder;
		while (i--) {
			if (responders[i].handler === handler) {
				responder = responders[i];
				break;
			}
		}
		if (!responder) return element;

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

		registry.set(eventName, responders.without(responder));

		return element;
	}

	function fire(element, eventName, memo, bubble) {
		element = $(element);

		if (Object.isUndefined(bubble)) bubble = true;

		if (element == document && document.createEvent && !element.dispatchEvent) element = document.documentElement;

		var event;
		if (document.createEvent) {
			event = document.createEvent('HTMLEvents');
			event.initEvent('dataavailable', bubble, true);
		}
		else {
			event = document.createEventObject();
			event.eventType = bubble ? 'ondataavailable' : 'onlosecapture';
		}

		event.eventName = eventName;
		event.memo = memo || {};

		if (document.createEvent) element.dispatchEvent(event);
		else element.fireEvent(event.eventType, event);

		return Event.extend(event);
	}

	Event.Handler = Class.create({
		initialize: function (element, eventName, selector, callback) {
			this.element = $(element);
			this.eventName = eventName;
			this.selector = selector;
			this.callback = callback;
			this.handler = this.handleEvent.bind(this);
		},

		start: function () {
			Event.observe(this.element, this.eventName, this.handler);
			return this;
		},

		stop: function () {
			Event.stopObserving(this.element, this.eventName, this.handler);
			return this;
		},

		handleEvent: function (event) {
			var element = Event.findElement(event, this.selector);
			if (element) this.callback.call(this.element, event, element);
		}
	});

	function on(element, eventName, selector, callback) {
		element = $(element);
		if (Object.isFunction(selector) && Object.isUndefined(callback)) {
			callback = selector, selector = null;
		}

		return new Event.Handler(element, eventName, selector, callback).start();
	}

	Object.extend(Event, Event.Methods);

	Object.extend(Event, {
		fire: fire,
		observe: observe,
		stopObserving: stopObserving,
		on: on
	});

	Element.addMethods({
		fire: fire,

		observe: observe,

		stopObserving: stopObserving,

		on: on
	});

	Object.extend(document, {
		fire: fire.methodize(),

		observe: observe.methodize(),

		stopObserving: stopObserving.methodize(),

		on: on.methodize(),

		loaded: false
	});

	if (window.Event) Object.extend(window.Event, Event);
	else window.Event = Event;
})();

(function () {
/* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */

	var timer;

	function fireContentLoadedEvent() {
		if (document.loaded) return;
		if (timer) window.clearTimeout(timer);
		document.loaded = true;
		document.fire('dom:loaded');
	}

	function checkReadyState() {
		if (document.readyState === 'complete') {
			document.stopObserving('readystatechange', checkReadyState);
			fireContentLoadedEvent();
		}
	}

	function pollDoScroll() {
		try {
			document.documentElement.doScroll('left');
		}
		catch (e) {
			timer = pollDoScroll.defer();
			return;
		}
		fireContentLoadedEvent();
	}

	if (document.addEventListener) {
		document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
	}
	else {
		document.observe('readystatechange', checkReadyState);
		if (window == top) timer = pollDoScroll.defer();
	}

	Event.observe(window, 'load', fireContentLoadedEvent);
})();


Element.addMethods(); /*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = {
	display: Element.toggle
};

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
	Before: function (element, content) {
		return Element.insert(element, {
			before: content
		});
	},

	Top: function (element, content) {
		return Element.insert(element, {
			top: content
		});
	},

	Bottom: function (element, content) {
		return Element.insert(element, {
			bottom: content
		});
	},

	After: function (element, content) {
		return Element.insert(element, {
			after: content
		});
	}
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

var Position = {
	includeScrollOffsets: false,

	prepare: function () {
		this.deltaX = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0;
		this.deltaY = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
	},

	within: function (element, x, y) {
		if (this.includeScrollOffsets) return this.withinIncludingScrolloffsets(element, x, y);
		this.xcomp = x;
		this.ycomp = y;
		this.offset = Element.cumulativeOffset(element);

		return (y >= this.offset[1] && y < this.offset[1] + element.offsetHeight && x >= this.offset[0] && x < this.offset[0] + element.offsetWidth);
	},

	withinIncludingScrolloffsets: function (element, x, y) {
		var offsetcache = Element.cumulativeScrollOffset(element);

		this.xcomp = x + offsetcache[0] - this.deltaX;
		this.ycomp = y + offsetcache[1] - this.deltaY;
		this.offset = Element.cumulativeOffset(element);

		return (this.ycomp >= this.offset[1] && this.ycomp < this.offset[1] + element.offsetHeight && this.xcomp >= this.offset[0] && this.xcomp < this.offset[0] + element.offsetWidth);
	},

	overlap: function (mode, element) {
		if (!mode) return 0;
		if (mode == 'vertical') return ((this.offset[1] + element.offsetHeight) - this.ycomp) / element.offsetHeight;
		if (mode == 'horizontal') return ((this.offset[0] + element.offsetWidth) - this.xcomp) / element.offsetWidth;
	},


	cumulativeOffset: Element.Methods.cumulativeOffset,

	positionedOffset: Element.Methods.positionedOffset,

	absolutize: function (element) {
		Position.prepare();
		return Element.absolutize(element);
	},

	relativize: function (element) {
		Position.prepare();
		return Element.relativize(element);
	},

	realOffset: Element.Methods.cumulativeScrollOffset,

	offsetParent: Element.Methods.getOffsetParent,

	page: Element.Methods.viewportOffset,

	clone: function (source, target, options) {
		options = options || {};
		return Element.clonePosition(target, source, options);
	}
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function (instanceMethods) {
	function iter(name) {
		return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
	}

	instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
	function (element, className) {
		className = className.toString().strip();
		var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
		return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
	} : function (element, className) {
		className = className.toString().strip();
		var elements = [],
			classNames = (/\s/.test(className) ? $w(className) : null);
		if (!classNames && !className) return elements;

		var nodes = $(element).getElementsByTagName('*');
		className = ' ' + className + ' ';

		for (var i = 0, child, cn; child = nodes[i]; i++) {
			if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) || (classNames && classNames.all(function (name) {
				return !name.toString().blank() && cn.include(' ' + name + ' ');
			})))) elements.push(Element.extend(child));
		}
		return elements;
	};

	return function (className, parentElement) {
		return $(parentElement || document.body).getElementsByClassName(className);
	};
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
	initialize: function (element) {
		this.element = $(element);
	},

	_each: function (iterator) {
		this.element.className.split(/\s+/).select(function (name) {
			return name.length > 0;
		})._each(iterator);
	},

	set: function (className) {
		this.element.className = className;
	},

	add: function (classNameToAdd) {
		if (this.include(classNameToAdd)) return;
		this.set($A(this).concat(classNameToAdd).join(' '));
	},

	remove: function (classNameToRemove) {
		if (!this.include(classNameToRemove)) return;
		this.set($A(this).without(classNameToRemove).join(' '));
	},

	toString: function () {
		return $A(this).join(' ');
	}
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

(function () {
	window.Selector = Class.create({
		initialize: function (expression) {
			this.expression = expression.strip();
		},

		findElements: function (rootElement) {
			return Prototype.Selector.select(this.expression, rootElement);
		},

		match: function (element) {
			return Prototype.Selector.match(element, this.expression);
		},

		toString: function () {
			return this.expression;
		},

		inspect: function () {
			return "#<Selector: " + this.expression + ">";
		}
	});

	Object.extend(Selector, {
		matchElements: function (elements, expression) {
			var match = Prototype.Selector.match,
				results = [];

			for (var i = 0, length = elements.length; i < length; i++) {
				var element = elements[i];
				if (match(element, expression)) {
					results.push(Element.extend(element));
				}
			}
			return results;
		},

		findElement: function (elements, expression, index) {
			index = index || 0;
			var matchIndex = 0,
				element;
			for (var i = 0, length = elements.length; i < length; i++) {
				element = elements[i];
				if (Prototype.Selector.match(element, expression) && index === matchIndex++) {
					return Element.extend(element);
				}
			}
		},

		findChildElements: function (element, expressions) {
			var selector = expressions.toArray().join(', ');
			return Prototype.Selector.select(selector, element || document);
		}
	});
})();
// script.aculo.us scriptaculous.js v1.9.0, Thu Dec 23 16:54:48 -0500 2010

// Copyright (c) 2005-2010 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: '1.9.0',
  require: function(libraryName) {
    try{
      // inserting via DOM fails in Safari 2.0, so brute force approach
      document.write('<script type="text/javascript" src="'+libraryName+'"><\/script>');
    } catch(e) {
      // for xhtml+xml served content, fall back to DOM methods
      var script = document.createElement('script');
      script.type = 'text/javascript';
      script.src = libraryName;
      document.getElementsByTagName('head')[0].appendChild(script);
    }
  },
  REQUIRED_PROTOTYPE: '1.6.0.3',
  load: function() {
    function convertVersionString(versionString) {
      var v = versionString.replace(/_.*|\./g, '');
      v = parseInt(v + '0'.times(4-v.length));
      return versionString.indexOf('_') > -1 ? v-1 : v;
    }

    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);

    var js = /scriptaculous\.js(\?.*)?$/;
    $$('script[src]').findAll(function(s) {
      return s.src.match(js);
    }).each(function(s) {
      var path = s.src.replace(js, ''),
      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 v1.9.0, Thu Dec 23 16:54:48 -0500 2010

// Copyright (c) 2005-2010 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) + .5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
    },
    pulse: function(pos, pulses) {
      return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
    },
    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, options) {
    element = $(element);
    effect  = (effect || 'appear').toLowerCase();
    
    return Effect[ Effect.PAIRS[ effect ][ element.visible() ? 1 : 0 ] ](element, Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, 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) {
    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;

    this.render = (function() {
      function dispatch(effect, eventName) {
        if (effect.options[eventName + 'Internal'])
          effect.options[eventName + 'Internal'](effect);
        if (effect.options[eventName])
          effect.options[eventName](effect);
      }

      return function(pos) {
        if (this.state === "idle") {
          this.state = "running";
          dispatch(this, 'beforeSetup');
          if (this.setup) this.setup();
          dispatch(this, 'afterSetup');
        }
        if (this.state === "running") {
          pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
          this.position = pos;
          dispatch(this, 'beforeUpdate');
          if (this.update) this.update(pos);
          dispatch(this, '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();

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    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] || { },
    oldOpacity = element.getInlineOpacity(),
    transition = options.transition || Effect.Transitions.linear,
    reverser   = function(pos){
      return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
    };

  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(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.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 v1.9.0, Thu Dec 23 16:54:48 -0500 2010

// Copyright (c) 2005-2010 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/

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     = this.element.cumulativeOffset();
      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._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this._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).toArray();
        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._originallyAbsolute)
        Position.relativize(this.element);
      delete this._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 = this.element.cumulativeOffset();
    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){
    element = $(element);
    var s = Sortable.sortables[element.id];

    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.identify()] = 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 = dropon.cumulativeOffset();
    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 v1.9.0, Thu Dec 23 16:54:48 -0500 2010

// Copyright (c) 2005-2010 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2010 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2010 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, 'keydown', 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();
         Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         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.unescapeHTML();
  },
  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 v1.9.0, Thu Dec 23 16:54:48 -0500 2010

// Copyright (c) 2005-2010 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)));
      };
    });
  }
};
/**
 * Bitte unbedingt als letztes laden, da auf bestehende Sachen zurückgegriffen wird
 * @copy Andreas Pickmann / appcms
 * 2009-11-27
 */

Effect.TextColor = 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.endcolor)
      this.options.endcolor = this.element.getStyle('color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('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({color: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    /* this.element.setStyle(Object.extend(this.oldStyle, {
      color: this.options.restorecolor
    })); */
  }
});
var Lightbox=Class.create({imageArray:[],activeImage:undefined,initialize:function(c){var t=this;t.options=Object.extend({overlayOpacity:0.8,animate:true,resizeSpeed:9,borderSize:10,labelImage:"Bild",labelOf:"von",noScrollImage:true},c||{});t.maxImgWidth=document.viewport.getWidth();t.maxImgHeight=document.viewport.getHeight()-75;t.widthNew=-1;t.heightNew=-1;t.imageArray=[];if(t.options.images){t.initImages(t.options.images)}else{t.updateImageList()}t.keyboardAction=t.keyboardAction.bindAsEventListener(t);if(t.options.resizeSpeed>10)t.options.resizeSpeed=10;if(t.options.resizeSpeed<1)t.options.resizeSpeed=1;t.resizeDuration=t.options.animate?((11-t.options.resizeSpeed)*0.15):0;t.overlayDuration=t.options.animate?0.2:0;var d=(t.options.animate?250:1)+'px';if($('overlay')==null&&$('lightbox')==null){var e=$$('body')[0];e.appendChild(Builder.node('div',{id:'overlay'}));e.appendChild(Builder.node('div',{id:'lightbox'},[Builder.node('div',{id:'outerImageContainer'},Builder.node('div',{id:'imageContainer'},[Builder.node('img',{id:'lightboxImage'}),Builder.node('div',{id:'hoverNav'},[Builder.node('a',{id:'prevLink',href:'#'}),Builder.node('a',{id:'nextLink',href:'#'})]),Builder.node('div',{id:'loading'},Builder.node('a',{id:'loadingLink',href:'#'}))])),Builder.node('div',{id:'imageDataContainer'},Builder.node('div',{id:'imageData'},[Builder.node('div',{id:'imageDetails'},[Builder.node('span',{id:'caption'}),Builder.node('span',{id:'numberDisplay'})]),Builder.node('div',{id:'bottomNav'},Builder.node('a',{id:'bottomNavClose',href:'#'}))]))]));$('overlay').hide().observe('click',(function(){t.end()}).bind(t));$('lightbox').hide().observe('click',(function(a){if(a.element().id=='lightbox')t.end()}).bind(t));$('outerImageContainer').setStyle({width:d,height:d});$('loadingLink').observe('click',(function(a){a.stop();t.end()}).bind(t));$('bottomNavClose').observe('click',(function(a){a.stop();t.end()}).bind(t))}(function(){var b='overlay lightbox outerImageContainer imageContainer lightboxImage hoverNav prevLink nextLink loading loadingLink '+'imageDataContainer imageData imageDetails caption numberDisplay bottomNav bottomNavClose';$w(b).each(function(a){t[a]=$(a)})}).defer()},updateImageList:function(){this.updateImageList=Prototype.emptyFunction;document.observe('click',(function(a){var b=a.findElement('a[rel^=lightbox]')||a.findElement('area[rel^=lightbox]');if(b){a.stop();this.start(b)}}).bind(this))},initStart:function(b){$$('select','object','embed').each(function(a){a.style.visibility='hidden'});$('prevLink').stopObserving();$('nextLink').stopObserving();$('prevLink').observe('click',(function(a){a.stop();this.changeImage(this.activeImage-1)}).bindAsEventListener(this));$('nextLink').observe('click',(function(a){a.stop();this.changeImage(this.activeImage+1)}).bindAsEventListener(this));var c=this.getPageSize();this.overlay.setStyle({width:c[0]+'px',height:c[1]+'px'});new Effect.Appear(this.overlay,{duration:this.overlayDuration,from:0.0,to:this.options.overlayOpacity});var d=document.viewport.getScrollOffsets();var e=d[1]+(document.viewport.getHeight()/10);var f=d[0];this.lightbox.setStyle({top:e+'px',left:f+'px'}).show();this.changeImage(b)},start:function(b){this.imageArray=[];var c=0;if((b.rel=='lightbox')){this.imageArray.push([b.href,b.title])}else{this.imageArray=$$(b.tagName+'[href][rel="'+b.rel+'"]').collect(function(a){return[a.href,a.title]}).uniq();while(this.imageArray[c][0]!=b.href){c++}}this.initStart(c)},changeImage:function(a){this.activeImage=a;if(this.options.animate)this.loading.show();this.lightboxImage.hide();this.hoverNav.hide();this.prevLink.hide();this.nextLink.hide();this.imageDataContainer.setStyle({opacity:.0001});this.numberDisplay.hide();var b=new Image();b.onload=(function(){this.lightboxImage.src=this.imageArray[this.activeImage][0];this.resizeImageContainer(b.width,b.height)}).bind(this);b.src=this.imageArray[this.activeImage][0]},resizeImageContainer:function(a,b){var t=this;var c=t.outerImageContainer.getWidth();var d=t.outerImageContainer.getHeight();if(t.options.noScrollImage==true){if(t.maxImgHeight<b){a=Math.round(a*t.maxImgHeight/b);b=t.maxImgHeight;t.lightboxImage.width=a;t.lightboxImage.height=b;t.lightboxImage.setStyle({width:a+'px',height:b+'px'});var s=document.viewport.getScrollOffsets();t.lightbox.setStyle({top:Math.round(s.top+5)+'px'})}else{t.lightboxImage.writeAttribute({'width':'','height':''}).setStyle({'width':'','height':''})}}t.widthNew=(a+t.options.borderSize*2);t.heightNew=(b+t.options.borderSize*2);var e=(t.widthNew/c)*100;var f=(t.heightNew/d)*100;var g=c-t.widthNew;var h=d-t.heightNew;if(h!=0)new Effect.Scale(t.outerImageContainer,f,{scaleX:false,duration:t.resizeDuration,queue:'front'});if(g!=0)new Effect.Scale(t.outerImageContainer,e,{scaleY:false,duration:t.resizeDuration,delay:t.resizeDuration});var i=0;if((h==0)&&(g==0)){i=100;if(Prototype.Browser.IE)i=250}(function(){t.prevLink.setStyle({height:b+'px'});t.nextLink.setStyle({height:b+'px'});t.imageDataContainer.setStyle({width:t.widthNew+'px'});t.showImage()}).bind(t).delay(i/1000)},showImage:function(){this.loading.hide();new Effect.Appear(this.lightboxImage,{duration:this.resizeDuration,queue:'end',afterFinish:(function(){this.updateDetails()}).bind(this)});this.preloadNeighborImages()},updateDetails:function(){if(this.imageArray[this.activeImage][1]!=""){this.caption.update(this.imageArray[this.activeImage][1]).show()}if(this.imageArray.length>1){this.numberDisplay.update(this.options.labelImage+' '+(this.activeImage+1)+' '+this.options.labelOf+'  '+this.imageArray.length).show()}new Effect.Parallel([new Effect.SlideDown(this.imageDataContainer,{sync:true,duration:this.resizeDuration,from:0.0,to:1.0}),new Effect.Appear(this.imageDataContainer,{sync:true,duration:this.resizeDuration})],{duration:this.resizeDuration,afterFinish:(function(){var a=this.getPageSize();this.overlay.setStyle({height:a[1]+'px'});this.updateNav()}).bind(this)})},updateNav:function(){this.hoverNav.show();if(this.activeImage>0)this.prevLink.show();if(this.activeImage<(this.imageArray.length-1))this.nextLink.show();this.enableKeyboardNav()},enableKeyboardNav:function(){document.observe('keydown',this.keyboardAction)},disableKeyboardNav:function(){document.stopObserving('keydown',this.keyboardAction)},keyboardAction:function(a){var b=a.keyCode;var c;if(a.DOM_VK_ESCAPE){c=a.DOM_VK_ESCAPE}else{c=27}var d=String.fromCharCode(b).toLowerCase();if(d.match(/x|o|c/)||(b==c)){this.end()}else if((d=='p')||(b==37)){if(this.activeImage!=0){this.disableKeyboardNav();this.changeImage(this.activeImage-1)}}else if((d=='n')||(b==39)){if(this.activeImage!=(this.imageArray.length-1)){this.disableKeyboardNav();this.changeImage(this.activeImage+1)}}},preloadNeighborImages:function(){var a,preloadPrevImage;if(this.imageArray.length>this.activeImage+1){a=new Image();a.src=this.imageArray[this.activeImage+1][0]}if(this.activeImage>0){preloadPrevImage=new Image();preloadPrevImage.src=this.imageArray[this.activeImage-1][0]}},end:function(){this.disableKeyboardNav();this.lightbox.hide();new Effect.Fade(this.overlay,{duration:this.overlayDuration});$$('select','object','embed').each(function(a){a.style.visibility='visible'})},getPageSize:function(){var a,yScroll;if(window.innerHeight&&window.scrollMaxY){a=window.innerWidth+window.scrollMaxX;yScroll=window.innerHeight+window.scrollMaxY}else if(document.body.scrollHeight>document.body.offsetHeight){a=document.body.scrollWidth;yScroll=document.body.scrollHeight}else{a=document.body.offsetWidth;yScroll=document.body.offsetHeight}var b,windowHeight;if(self.innerHeight){if(document.documentElement.clientWidth){b=document.documentElement.clientWidth}else{b=self.innerWidth}windowHeight=self.innerHeight}else if(document.documentElement&&document.documentElement.clientHeight){b=document.documentElement.clientWidth;windowHeight=document.documentElement.clientHeight}else if(document.body){b=document.body.clientWidth;windowHeight=document.body.clientHeight}if(yScroll<windowHeight){pageHeight=windowHeight}else{pageHeight=yScroll}if(a<b){pageWidth=a}else{pageWidth=b}return[pageWidth,pageHeight]},initImages:function(a){a.each(function(s){this.imageArray.push([s.imagepath,s.title])}.bind(this))},sgstart:function(a){this.initStart(a)}});document.observe('dom:loaded',function(){var lb=new Lightbox()});