[Simexplorer-si-commits] r742 - in trunk/simexplorer-is-web/src/resources: . org org/apache org/apache/tapestry org/apache/tapestry/scriptaculous_1_8

8 Feb 2008

Author: glandais
Date: 2008-02-08 14:17:48 +0000 (Fri, 08 Feb 2008)
New Revision: 742

Added:
   trunk/simexplorer-is-web/src/resources/org/
   trunk/simexplorer-is-web/src/resources/org/apache/
   trunk/simexplorer-is-web/src/resources/org/apache/tapestry/
   trunk/simexplorer-is-web/src/resources/org/apache/tapestry/scriptaculous_1_8/
   trunk/simexplorer-is-web/src/resources/org/apache/tapestry/scriptaculous_1_8/prototype.js
Log:
Konqueror bug fix

Added: trunk/simexplorer-is-web/src/resources/org/apache/tapestry/scriptaculous_1_8/prototype.js
===================================================================

--- trunk/simexplorer-is-web/src/resources/org/apache/tapestry/scriptaculous_1_8/prototype.js	                        (rev 0)
+++ trunk/simexplorer-is-web/src/resources/org/apache/tapestry/scriptaculous_1_8/prototype.js	2008-02-08 14:17:48 UTC (rev 742)
@@ -0,0 +1,5065 @@
+/*  Prototype JavaScript framework, version 1.6.0
+ *  (c) 2005-2007 Sam Stephenson
+ *
+ *  Prototype is freely distributable under the terms of an MIT-style license.
+ *  For details, see the Prototype web site: http://www.prototypejs.org/
+ *
+ *--------------------------------------------------------------------------*/
+
+var Prototype = {
+    Version: '1.6.0',
+
+    Browser: {
+        IE:     !!(window.attachEvent && !window.opera),
+        Opera:  !!window.opera,
+        WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1 || navigator.userAgent.indexOf('KHTML') > -1,
+        Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
+        MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
+    },
+
+    BrowserFeatures: {
+        XPath: !!document.evaluate,
+        ElementExtensions: !!window.HTMLElement,
+        SpecificElementExtensions:
+                document.createElement('div').__proto__ &&
+                document.createElement('div').__proto__ !==
+                document.createElement('form').__proto__
+    },
+
+    ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
+    JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
+
+    emptyFunction: function()
+    {
+    },
+    K: function(x)
+    {
+        return x
+    }
+};
+
+if (Prototype.Browser.MobileSafari)
+    Prototype.BrowserFeatures.SpecificElementExtensions = false;
+
+if (Prototype.Browser.WebKit)
+    Prototype.BrowserFeatures.XPath = false;
+
+/* Based on Alex Arnell's inheritance implementation. */
+var Class = {
+    create: function()
+    {
+        var parent = null, properties = $A(arguments);
+        if (Object.isFunction(properties[0]))
+            parent = properties.shift();
+
+        function klass()
+        {
+            this.initialize.apply(this, arguments);
+        }
+
+        Object.extend(klass, Class.Methods);
+        klass.superclass = parent;
+        klass.subclasses = [];
+
+        if (parent)
+        {
+            var subclass = function()
+            {
+            };
+            subclass.prototype = parent.prototype;
+            klass.prototype = new subclass;
+            parent.subclasses.push(klass);
+        }
+
+        for (var i = 0; i < properties.length; i++)
+            klass.addMethods(properties[i]);
+
+        if (!klass.prototype.initialize)
+            klass.prototype.initialize = Prototype.emptyFunction;
+
+        klass.prototype.constructor = klass;
+
+        return klass;
+    }
+};
+
+Class.Methods = {
+    addMethods: function(source)
+    {
+        var ancestor = this.superclass && this.superclass.prototype;
+        var properties = Object.keys(source);
+
+        if (!Object.keys({ toString: true }).length)
+            properties.push("toString", "valueOf");
+
+        for (var i = 0, length = properties.length; i < length; i++)
+        {
+            var property = properties[i], value = source[property];
+            if (ancestor && Object.isFunction(value) &&
+                value.argumentNames().first() == "$super")
+            {
+                var method = value, value = Object.extend((function(m)
+                {
+                    return function()
+                    {
+                        return ancestor[m].apply(this, arguments)
+                    };
+                })(property).wrap(method), {
+                    valueOf:  function()
+                    {
+                        return method
+                    },
+                    toString: function()
+                    {
+                        return method.toString()
+                    }
+                });
+            }
+            this.prototype[property] = value;
+        }
+
+        return this;
+    }
+};
+
+var Abstract = { };
+
+Object.extend = function(destination, source)
+{
+    for (var property in source)
+        destination[property] = source[property];
+    return destination;
+};
+
+Object.extend(Object, {
+    inspect: function(object)
+    {
+        try
+        {
+            if (object === undefined) return 'undefined';
+            if (object === null) return 'null';
+            return object.inspect ? object.inspect() : object.toString();
+        }
+        catch (e)
+        {
+            if (e instanceof RangeError) return '...';
+            throw e;
+        }
+    },
+
+    toJSON: function(object)
+    {
+        var type = typeof object;
+        switch (type)
+                {
+            case 'undefined':
+            case 'function':
+            case 'unknown': return;
+            case 'boolean': return object.toString();
+        }
+
+        if (object === null) return 'null';
+        if (object.toJSON) return object.toJSON();
+        if (Object.isElement(object)) return;
+
+        var results = [];
+        for (var property in object)
+        {
+            var value = Object.toJSON(object[property]);
+            if (value !== undefined)
+                results.push(property.toJSON() + ': ' + value);
+        }
+
+        return '{' + results.join(', ') + '}';
+    },
+
+    toQueryString: function(object)
+    {
+        return $H(object).toQueryString();
+    },
+
+    toHTML: function(object)
+    {
+        return object && object.toHTML ? object.toHTML() : String.interpret(object);
+    },
+
+    keys: function(object)
+    {
+        var keys = [];
+        for (var property in object)
+            keys.push(property);
+        return keys;
+    },
+
+    values: function(object)
+    {
+        var values = [];
+        for (var property in object)
+            values.push(object[property]);
+        return values;
+    },
+
+    clone: function(object)
+    {
+        return Object.extend({ }, object);
+    },
+
+    isElement: function(object)
+    {
+        return object && object.nodeType == 1;
+    },
+
+    isArray: function(object)
+    {
+        return object && object.constructor === Array;
+    },
+
+    isHash: function(object)
+    {
+        return object instanceof Hash;
+    },
+
+    isFunction: function(object)
+    {
+        return typeof object == "function";
+    },
+
+    isString: function(object)
+    {
+        return typeof object == "string";
+    },
+
+    isNumber: function(object)
+    {
+        return typeof object == "number";
+    },
+
+    isUndefined: function(object)
+    {
+        return typeof object == "undefined";
+    }
+});
+
+Object.extend(Function.prototype, {
+    argumentNames: function()
+    {
+        var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
+        return names.length == 1 && !names[0] ? [] : names;
+    },
+
+    bind: function()
+    {
+        if (arguments.length < 2 && arguments[0] === undefined) return this;
+        var __method = this, args = $A(arguments), object = args.shift();
+        return function()
+        {
+            return __method.apply(object, args.concat($A(arguments)));
+        }
+    },
+
+    bindAsEventListener: function()
+    {
+        var __method = this, args = $A(arguments), object = args.shift();
+        return function(event)
+        {
+            return __method.apply(object, [event || window.event].concat(args));
+        }
+    },
+
+    curry: function()
+    {
+        if (!arguments.length) return this;
+        var __method = this, args = $A(arguments);
+        return function()
+        {
+            return __method.apply(this, args.concat($A(arguments)));
+        }
+    },
+
+    delay: function()
+    {
+        var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
+        return window.setTimeout(function()
+        {
+            return __method.apply(__method, args);
+        }, timeout);
+    },
+
+    wrap: function(wrapper)
+    {
+        var __method = this;
+        return function()
+        {
+            return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
+        }
+    },
+
+    methodize: function()
+    {
+        if (this._methodized) return this._methodized;
+        var __method = this;
+        return this._methodized = function()
+        {
+            return __method.apply(null, [this].concat($A(arguments)));
+        };
+    }
+});
+
+Function.prototype.defer = Function.prototype.delay.curry(0.01);
+
+Date.prototype.toJSON = function()
+{
+    return '"' + this.getUTCFullYear() + '-' +
+           (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
+           this.getUTCDate().toPaddedString(2) + 'T' +
+           this.getUTCHours().toPaddedString(2) + ':' +
+           this.getUTCMinutes().toPaddedString(2) + ':' +
+           this.getUTCSeconds().toPaddedString(2) + 'Z"';
+};
+
+var Try = {
+    these: function()
+    {
+        var returnValue;
+
+        for (var i = 0, length = arguments.length; i < length; i++)
+        {
+            var lambda = arguments[i];
+            try
+            {
+                returnValue = lambda();
+                break;
+            }
+            catch (e)
+            {
+            }
+        }
+
+        return returnValue;
+    }
+};
+
+RegExp.prototype.match = RegExp.prototype.test;
+
+RegExp.escape = function(str)
+{
+    return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
+};
+
+/*--------------------------------------------------------------------------*/
+
+var PeriodicalExecuter = Class.create({
+    initialize: function(callback, frequency)
+    {
+        this.callback = callback;
+        this.frequency = frequency;
+        this.currentlyExecuting = false;
+
+        this.registerCallback();
+    },
+
+    registerCallback: function()
+    {
+        this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
+    },
+
+    execute: function()
+    {
+        this.callback(this);
+    },
+
+    stop: function()
+    {
+        if (!this.timer) return;
+        clearInterval(this.timer);
+        this.timer = null;
+    },
+
+    onTimerEvent: function()
+    {
+        if (!this.currentlyExecuting)
+        {
+            try
+            {
+                this.currentlyExecuting = true;
+                this.execute();
+            }
+            finally
+            {
+                this.currentlyExecuting = false;
+            }
+        }
+    }
+});
+Object.extend(String, {
+    interpret: function(value)
+    {
+        return value == null ? '' : String(value);
+    },
+    specialChar: {
+        '\b': '\\b',
+        '\t': '\\t',
+        '\n': '\\n',
+        '\f': '\\f',
+        '\r': '\\r',
+        '\\': '\\\\'
+    }
+});
+
+Object.extend(String.prototype, {
+    gsub: function(pattern, replacement)
+    {
+        var result = '', source = this, match;
+        replacement = arguments.callee.prepareReplacement(replacement);
+
+        while (source.length > 0)
+        {
+            if (match = source.match(pattern))
+            {
+                result += source.slice(0, match.index);
+                result += String.interpret(replacement(match));
+                source = source.slice(match.index + match[0].length);
+            }
+            else
+            {
+                result += source,source = '';
+            }
+        }
+        return result;
+    },
+
+    sub: function(pattern, replacement, count)
+    {
+        replacement = this.gsub.prepareReplacement(replacement);
+        count = count === undefined ? 1 : count;
+
+        return this.gsub(pattern, function(match)
+        {
+            if (--count < 0) return match[0];
+            return replacement(match);
+        });
+    },
+
+    scan: function(pattern, iterator)
+    {
+        this.gsub(pattern, iterator);
+        return String(this);
+    },
+
+    truncate: function(length, truncation)
+    {
+        length = length || 30;
+        truncation = truncation === undefined ? '...' : truncation;
+        return this.length > length ?
+               this.slice(0, length - truncation.length) + truncation : String(this);
+    },
+
+    strip: function()
+    {
+        return this.replace(/^\s+/, '').replace(/\s+$/, '');
+    },
+
+    stripTags: function()
+    {
+        return this.replace(/<\/?[^>]+>/gi, '');
+    },
+
+    stripScripts: function()
+    {
+        return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
+    },
+
+    extractScripts: function()
+    {
+        var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
+        var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
+        return (this.match(matchAll) || []).map(function(scriptTag)
+        {
+            return (scriptTag.match(matchOne) || ['', ''])[1];
+        });
+    },
+
+    evalScripts: function()
+    {
+        return this.extractScripts().map(function(script)
+        {
+            return eval(script)
+        });
+    },
+
+    escapeHTML: function()
+    {
+        var self = arguments.callee;
+        self.text.data = this;
+        return self.div.innerHTML;
+    },
+
+    unescapeHTML: function()
+    {
+        var div = new Element('div');
+        div.innerHTML = this.stripTags();
+        return div.childNodes[0] ? (div.childNodes.length > 1 ?
+                                    $A(div.childNodes).inject('', function(memo, node)
+                                    {
+                                        return memo + node.nodeValue
+                                    }) :
+                                    div.childNodes[0].nodeValue) : '';
+    },
+
+    toQueryParams: function(separator)
+    {
+        var match = this.strip().match(/([^?#]*)(#.*)?$/);
+        if (!match) return { };
+
+        return match[1].split(separator || '&').inject({ }, function(hash, pair)
+        {
+            if ((pair = pair.split('='))[0])
+            {
+                var key = decodeURIComponent(pair.shift());
+                var value = pair.length > 1 ? pair.join('=') : pair[0];
+                if (value != undefined) value = decodeURIComponent(value);
+
+                if (key in hash)
+                {
+                    if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
+                    hash[key].push(value);
+                }
+                else hash[key] = value;
+            }
+            return hash;
+        });
+    },
+
+    toArray: function()
+    {
+        return this.split('');
+    },
+
+    succ: function()
+    {
+        return this.slice(0, this.length - 1) +
+               String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
+    },
+
+    times: function(count)
+    {
+        return count < 1 ? '' : new Array(count + 1).join(this);
+    },
+
+    camelize: function()
+    {
+        var parts = this.split('-'), len = parts.length;
+        if (len == 1) return parts[0];
+
+        var camelized = this.charAt(0) == '-'
+                ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
+                : parts[0];
+
+        for (var i = 1; i < len; i++)
+            camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
+
+        return camelized;
+    },
+
+    capitalize: function()
+    {
+        return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
+    },
+
+    underscore: function()
+    {
+        return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/, '#{1}_#{2}').gsub(/([a-z\d])([A-Z])/, '#{1}_#{2}').gsub(/-/, '_').toLowerCase();
+    },
+
+    dasherize: function()
+    {
+        return this.gsub(/_/, '-');
+    },
+
+    inspect: function(useDoubleQuotes)
+    {
+        var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match)
+        {
+            var character = String.specialChar[match[0]];
+            return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
+        });
+        if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
+        return "'" + escapedString.replace(/'/g, '\\\'') + "'";
+    },
+
+    toJSON: function()
+    {
+        return this.inspect(true);
+    },
+
+    unfilterJSON: function(filter)
+    {
+        return this.sub(filter || Prototype.JSONFilter, '#{1}');
+    },
+
+    isJSON: function()
+    {
+        var str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
+        return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
+    },
+
+    evalJSON: function(sanitize)
+    {
+        var json = this.unfilterJSON();
+        try
+        {
+            if (!sanitize || json.isJSON()) return eval('(' + json + ')');
+        }
+        catch (e)
+        {
+        }
+        throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
+    },
+
+    include: function(pattern)
+    {
+        return this.indexOf(pattern) > -1;
+    },
+
+    startsWith: function(pattern)
+    {
+        return this.indexOf(pattern) === 0;
+    },
+
+    endsWith: function(pattern)
+    {
+        var d = this.length - pattern.length;
+        return d >= 0 && this.lastIndexOf(pattern) === d;
+    },
+
+    empty: function()
+    {
+        return this == '';
+    },
+
+    blank: function()
+    {
+        return /^\s*$/.test(this);
+    },
+
+    interpolate: function(object, pattern)
+    {
+        return new Template(this, pattern).evaluate(object);
+    }
+});
+
+if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
+    escapeHTML: function()
+    {
+        return this.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
+    },
+    unescapeHTML: function()
+    {
+        return this.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
+    }
+});
+
+String.prototype.gsub.prepareReplacement = function(replacement)
+{
+    if (Object.isFunction(replacement)) return replacement;
+    var template = new Template(replacement);
+    return function(match)
+    {
+        return template.evaluate(match)
+    };
+};
+
+String.prototype.parseQuery = String.prototype.toQueryParams;
+
+Object.extend(String.prototype.escapeHTML, {
+    div:  document.createElement('div'),
+    text: document.createTextNode('')
+});
+
+with (String.prototype.escapeHTML) div.appendChild(text);
+
+var Template = Class.create({
+    initialize: function(template, pattern)
+    {
+        this.template = template.toString();
+        this.pattern = pattern || Template.Pattern;
+    },
+
+    evaluate: function(object)
+    {
+        if (Object.isFunction(object.toTemplateReplacements))
+            object = object.toTemplateReplacements();
+
+        return this.template.gsub(this.pattern, function(match)
+        {
+            if (object == null) return '';
+
+            var before = match[1] || '';
+            if (before == '\\') return match[2];
+
+            var ctx = object, expr = match[3];
+            var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/, match = pattern.exec(expr);
+            if (match == null) return before;
+
+            while (match != null)
+            {
+                var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
+                ctx = ctx[comp];
+                if (null == ctx || '' == match[3]) break;
+                expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
+                match = pattern.exec(expr);
+            }
+
+            return before + String.interpret(ctx);
+        }.bind(this));
+    }
+});
+Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
+
+var $break = { };
+
+var Enumerable = {
+    each: function(iterator, context)
+    {
+        var index = 0;
+        iterator = iterator.bind(context);
+        try
+        {
+            this._each(function(value)
+            {
+                iterator(value, index++);
+            });
+        }
+        catch (e)
+        {
+            if (e != $break) throw e;
+        }
+        return this;
+    },
+
+    eachSlice: function(number, iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var index = -number, slices = [], array = this.toArray();
+        while ((index += number) < array.length)
+            slices.push(array.slice(index, index + number));
+        return slices.collect(iterator, context);
+    },
+
+    all: function(iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var result = true;
+        this.each(function(value, index)
+        {
+            result = result && !!iterator(value, index);
+            if (!result) throw $break;
+        });
+        return result;
+    },
+
+    any: function(iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var result = false;
+        this.each(function(value, index)
+        {
+            if (result = !!iterator(value, index))
+                throw $break;
+        });
+        return result;
+    },
+
+    collect: function(iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var results = [];
+        this.each(function(value, index)
+        {
+            results.push(iterator(value, index));
+        });
+        return results;
+    },
+
+    detect: function(iterator, context)
+    {
+        iterator = iterator.bind(context);
+        var result;
+        this.each(function(value, index)
+        {
+            if (iterator(value, index))
+            {
+                result = value;
+                throw $break;
+            }
+        });
+        return result;
+    },
+
+    findAll: function(iterator, context)
+    {
+        iterator = iterator.bind(context);
+        var results = [];
+        this.each(function(value, index)
+        {
+            if (iterator(value, index))
+                results.push(value);
+        });
+        return results;
+    },
+
+    grep: function(filter, iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var results = [];
+
+        if (Object.isString(filter))
+            filter = new RegExp(filter);
+
+        this.each(function(value, index)
+        {
+            if (filter.match(value))
+                results.push(iterator(value, index));
+        });
+        return results;
+    },
+
+    include: function(object)
+    {
+        if (Object.isFunction(this.indexOf))
+            if (this.indexOf(object) != -1) return true;
+
+        var found = false;
+        this.each(function(value)
+        {
+            if (value == object)
+            {
+                found = true;
+                throw $break;
+            }
+        });
+        return found;
+    },
+
+    inGroupsOf: function(number, fillWith)
+    {
+        fillWith = fillWith === undefined ? null : fillWith;
+        return this.eachSlice(number, function(slice)
+        {
+            while (slice.length < number) slice.push(fillWith);
+            return slice;
+        });
+    },
+
+    inject: function(memo, iterator, context)
+    {
+        iterator = iterator.bind(context);
+        this.each(function(value, index)
+        {
+            memo = iterator(memo, value, index);
+        });
+        return memo;
+    },
+
+    invoke: function(method)
+    {
+        var args = $A(arguments).slice(1);
+        return this.map(function(value)
+        {
+            return value[method].apply(value, args);
+        });
+    },
+
+    max: function(iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var result;
+        this.each(function(value, index)
+        {
+            value = iterator(value, index);
+            if (result == undefined || value >= result)
+                result = value;
+        });
+        return result;
+    },
+
+    min: function(iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var result;
+        this.each(function(value, index)
+        {
+            value = iterator(value, index);
+            if (result == undefined || value < result)
+                result = value;
+        });
+        return result;
+    },
+
+    partition: function(iterator, context)
+    {
+        iterator = iterator ? iterator.bind(context) : Prototype.K;
+        var trues = [], falses = [];
+        this.each(function(value, index)
+        {
+            (iterator(value, index) ?
+             trues : falses).push(value);
+        });
+        return [trues, falses];
+    },
+
+    pluck: function(property)
+    {
+        var results = [];
+        this.each(function(value)
+        {
+            results.push(value[property]);
+        });
+        return results;
+    },
+
+    reject: function(iterator, context)
+    {
+        iterator = iterator.bind(context);
+        var results = [];
+        this.each(function(value, index)
+        {
+            if (!iterator(value, index))
+                results.push(value);
+        });
+        return results;
+    },
+
+    sortBy: function(iterator, context)
+    {
+        iterator = iterator.bind(context);
+        return this.map(function(value, index)
+        {
+            return {value: value, criteria: iterator(value, index)};
+        }).sort(function(left, right)
+        {
+            var a = left.criteria, b = right.criteria;
+            return a < b ? -1 : a > b ? 1 : 0;
+        }).pluck('value');
+    },
+
+    toArray: function()
+    {
+        return this.map();
+    },
+
+    zip: function()
+    {
+        var iterator = Prototype.K, args = $A(arguments);
+        if (Object.isFunction(args.last()))
+            iterator = args.pop();
+
+        var collections = [this].concat(args).map($A);
+        return this.map(function(value, index)
+        {
+            return iterator(collections.pluck(index));
+        });
+    },
+
+    size: function()
+    {
+        return this.toArray().length;
+    },
+
+    inspect: function()
+    {
+        return '#<Enumerable:' + this.toArray().inspect() + '>';
+    }
+};
+
+Object.extend(Enumerable, {
+    map:     Enumerable.collect,
+    find:    Enumerable.detect,
+    select:  Enumerable.findAll,
+    filter:  Enumerable.findAll,
+    member:  Enumerable.include,
+    entries: Enumerable.toArray,
+    every:   Enumerable.all,
+    some:    Enumerable.any
+});
+function $A(iterable)
+{
+    if (!iterable) return [];
+    if (iterable.toArray) return iterable.toArray();
+    var length = iterable.length, results = new Array(length);
+    while (length--) results[length] = iterable[length];
+    return results;
+}
+
+if (Prototype.Browser.WebKit)
+{
+    function $A(iterable)
+    {
+        if (!iterable) return [];
+        if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
+            iterable.toArray) return iterable.toArray();
+        var length = iterable.length, results = new Array(length);
+        while (length--) results[length] = iterable[length];
+        return results;
+    }
+}
+
+Array.from = $A;
+
+Object.extend(Array.prototype, Enumerable);
+
+if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
+
+Object.extend(Array.prototype, {
+    _each: function(iterator)
+    {
+        for (var i = 0, length = this.length; i < length; i++)
+            iterator(this[i]);
+    },
+
+    clear: function()
+    {
+        this.length = 0;
+        return this;
+    },
+
+    first: function()
+    {
+        return this[0];
+    },
+
+    last: function()
+    {
+        return this[this.length - 1];
+    },
+
+    compact: function()
+    {
+        return this.select(function(value)
+        {
+            return value != null;
+        });
+    },
+
+    flatten: function()
+    {
+        return this.inject([], function(array, value)
+        {
+            return array.concat(Object.isArray(value) ?
+                                value.flatten() : [value]);
+        });
+    },
+
+    without: function()
+    {
+        var values = $A(arguments);
+        return this.select(function(value)
+        {
+            return !values.include(value);
+        });
+    },
+
+    reverse: function(inline)
+    {
+        return (inline !== false ? this : this.toArray())._reverse();
+    },
+
+    reduce: function()
+    {
+        return this.length > 1 ? this : this[0];
+    },
+
+    uniq: function(sorted)
+    {
+        return this.inject([], function(array, value, index)
+        {
+            if (0 == index || (sorted ? array.last() != value : !array.include(value)))
+                array.push(value);
+            return array;
+        });
+    },
+
+    intersect: function(array)
+    {
+        return this.uniq().findAll(function(item)
+        {
+            return array.detect(function(value)
+            {
+                return item === value
+            });
+        });
+    },
+
+    clone: function()
+    {
+        return [].concat(this);
+    },
+
+    size: function()
+    {
+        return this.length;
+    },
+
+    inspect: function()
+    {
+        return '[' + this.map(Object.inspect).join(', ') + ']';
+    },
+
+    toJSON: function()
+    {
+        var results = [];
+        this.each(function(object)
+        {
+            var value = Object.toJSON(object);
+            if (value !== undefined) results.push(value);
+        });
+        return '[' + results.join(', ') + ']';
+    }
+});
+
+// use native browser JS 1.6 implementation if available
+if (Object.isFunction(Array.prototype.forEach))
+    Array.prototype._each = Array.prototype.forEach;
+
+if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i)
+{
+    i || (i = 0);
+    var length = this.length;
+    if (i < 0) i = length + i;
+    for (; i < length; i++)
+        if (this[i] === item) return i;
+    return -1;
+};
+
+if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i)
+{
+    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
+    var n = this.slice(0, i).reverse().indexOf(item);
+    return (n < 0) ? n : i - n - 1;
+};
+
+Array.prototype.toArray = Array.prototype.clone;
+
+function $w(string)
+{
+    if (!Object.isString(string)) return [];
+    string = string.strip();
+    return string ? string.split(/\s+/) : [];
+}
+
+if (Prototype.Browser.Opera)
+{
+    Array.prototype.concat = function()
+    {
+        var array = [];
+        for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
+        for (var i = 0, length = arguments.length; i < length; i++)
+        {
+            if (Object.isArray(arguments[i]))
+            {
+                for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
+                    array.push(arguments[i][j]);
+            }
+            else
+            {
+                array.push(arguments[i]);
+            }
+        }
+        return array;
+    };
+}
+Object.extend(Number.prototype, {
+    toColorPart: function()
+    {
+        return this.toPaddedString(2, 16);
+    },
+
+    succ: function()
+    {
+        return this + 1;
+    },
+
+    times: function(iterator)
+    {
+        $R(0, this, true).each(iterator);
+        return this;
+    },
+
+    toPaddedString: function(length, radix)
+    {
+        var string = this.toString(radix || 10);
+        return '0'.times(length - string.length) + string;
+    },
+
+    toJSON: function()
+    {
+        return isFinite(this) ? this.toString() : 'null';
+    }
+});
+
+$w('abs round ceil floor').each(function(method)
+{
+    Number.prototype[method] = Math[method].methodize();
+});
+function $H(object)
+{
+    return new Hash(object);
+}
+;
+
+var Hash = Class.create(Enumerable, (function()
+{
+    if (function()
+    {
+        var i = 0, Test = function(value)
+        {
+            this.key = value
+        };
+        Test.prototype.key = 'foo';
+        for (var property in new Test('bar')) i++;
+        return i > 1;
+    }())
+    {
+        function each(iterator)
+        {
+            var cache = [];
+            for (var key in this._object)
+            {
+                var value = this._object[key];
+                if (cache.include(key)) continue;
+                cache.push(key);
+                var pair = [key, value];
+                pair.key = key;
+                pair.value = value;
+                iterator(pair);
+            }
+        }
+    }
+    else
+    {
+        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 toQueryPair(key, value)
+    {
+        if (Object.isUndefined(value)) return key;
+        return key + '=' + encodeURIComponent(String.interpret(value));
+    }
+
+    return {
+        initialize: function(object)
+        {
+            this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
+        },
+
+        _each: each,
+
+        set: function(key, value)
+        {
+            return this._object[key] = value;
+        },
+
+        get: function(key)
+        {
+            return this._object[key];
+        },
+
+        unset: function(key)
+        {
+            var value = this._object[key];
+            delete this._object[key];
+            return value;
+        },
+
+        toObject: function()
+        {
+            return Object.clone(this._object);
+        },
+
+        keys: function()
+        {
+            return this.pluck('key');
+        },
+
+        values: function()
+        {
+            return this.pluck('value');
+        },
+
+        index: function(value)
+        {
+            var match = this.detect(function(pair)
+            {
+                return pair.value === value;
+            });
+            return match && match.key;
+        },
+
+        merge: function(object)
+        {
+            return this.clone().update(object);
+        },
+
+        update: function(object)
+        {
+            return new Hash(object).inject(this, function(result, pair)
+            {
+                result.set(pair.key, pair.value);
+                return result;
+            });
+        },
+
+        toQueryString: function()
+        {
+            return this.map(function(pair)
+            {
+                var key = encodeURIComponent(pair.key), values = pair.value;
+
+                if (values && typeof values == 'object')
+                {
+                    if (Object.isArray(values))
+                        return values.map(toQueryPair.curry(key)).join('&');
+                }
+                return toQueryPair(key, values);
+            }).join('&');
+        },
+
+        inspect: function()
+        {
+            return '#<Hash:{' + this.map(function(pair)
+            {
+                return pair.map(Object.inspect).join(': ');
+            }).join(', ') + '}>';
+        },
+
+        toJSON: function()
+        {
+            return Object.toJSON(this.toObject());
+        },
+
+        clone: function()
+        {
+            return new Hash(this);
+        }
+    }
+})());
+
+Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
+Hash.from = $H;
+var ObjectRange = Class.create(Enumerable, {
+    initialize: function(start, end, exclusive)
+    {
+        this.start = start;
+        this.end = end;
+        this.exclusive = exclusive;
+    },
+
+    _each: function(iterator)
+    {
+        var value = this.start;
+        while (this.include(value))
+        {
+            iterator(value);
+            value = value.succ();
+        }
+    },
+
+    include: function(value)
+    {
+        if (value < this.start)
+            return false;
+        if (this.exclusive)
+            return value < this.end;
+        return value <= this.end;
+    }
+});
+
+var $R = function(start, end, exclusive)
+{
+    return new ObjectRange(start, end, exclusive);
+};
+
+var Ajax = {
+    getTransport: function()
+    {
+        return Try.these(
+                function()
+                {
+                    return new XMLHttpRequest()
+                },
+                function()
+                {
+                    return new ActiveXObject('Msxml2.XMLHTTP')
+                },
+                function()
+                {
+                    return new ActiveXObject('Microsoft.XMLHTTP')
+                }
+                ) || false;
+    },
+
+    activeRequestCount: 0
+};
+
+Ajax.Responders = {
+    responders: [],
+
+    _each: function(iterator)
+    {
+        this.responders._each(iterator);
+    },
+
+    register: function(responder)
+    {
+        if (!this.include(responder))
+            this.responders.push(responder);
+    },
+
+    unregister: function(responder)
+    {
+        this.responders = this.responders.without(responder);
+    },
+
+    dispatch: function(callback, request, transport, json)
+    {
+        this.each(function(responder)
+        {
+            if (Object.isFunction(responder[callback]))
+            {
+                try
+                {
+                    responder[callback].apply(responder, [request, transport, json]);
+                }
+                catch (e)
+                {
+                }
+            }
+        });
+    }
+};
+
+Object.extend(Ajax.Responders, Enumerable);
+
+Ajax.Responders.register({
+    onCreate:   function()
+    {
+        Ajax.activeRequestCount++
+    },
+    onComplete: function()
+    {
+        Ajax.activeRequestCount--
+    }
+});
+
+Ajax.Base = Class.create({
+    initialize: function(options)
+    {
+        this.options = {
+            method:       'post',
+            asynchronous: true,
+            contentType:  'application/x-www-form-urlencoded',
+            encoding:     'UTF-8',
+            parameters:   '',
+            evalJSON:     true,
+            evalJS:       true
+        };
+        Object.extend(this.options, options || { });
+
+        this.options.method = this.options.method.toLowerCase();
+        if (Object.isString(this.options.parameters))
+            this.options.parameters = this.options.parameters.toQueryParams();
+    }
+});
+
+Ajax.Request = Class.create(Ajax.Base, {
+    _complete: false,
+
+    initialize: function($super, url, options)
+    {
+        $super(options);
+        this.transport = Ajax.getTransport();
+        this.request(url);
+    },
+
+    request: function(url)
+    {
+        this.url = url;
+        this.method = this.options.method;
+        var params = Object.clone(this.options.parameters);
+
+        if (!['get', 'post'].include(this.method))
+        {
+            // simulate other verbs over post
+            params['_method'] = this.method;
+            this.method = 'post';
+        }
+
+        this.parameters = params;
+
+        if (params = Object.toQueryString(params))
+        {
+            // when GET, append parameters to URL
+            if (this.method == 'get')
+                this.url += (this.url.include('?') ? '&' : '?') + params;
+            else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
+                params += '&_=';
+        }
+
+        try
+        {
+            var response = new Ajax.Response(this);
+            if (this.options.onCreate) this.options.onCreate(response);
+            Ajax.Responders.dispatch('onCreate', this, response);
+
+            this.transport.open(this.method.toUpperCase(), this.url,
+                    this.options.asynchronous);
+
+            if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
+
+            this.transport.onreadystatechange = this.onStateChange.bind(this);
+            this.setRequestHeaders();
+
+            this.body = this.method == 'post' ? (this.options.postBody || params) : null;
+            this.transport.send(this.body);
+
+            /* Force Firefox to handle ready state 4 for synchronous requests */
+            if (!this.options.asynchronous && this.transport.overrideMimeType)
+                this.onStateChange();
+
+        }
+        catch (e)
+        {
+            this.dispatchException(e);
+        }
+    },
+
+    onStateChange: function()
+    {
+        var readyState = this.transport.readyState;
+        if (readyState > 1 && !((readyState == 4) && this._complete))
+            this.respondToReadyState(this.transport.readyState);
+    },
+
+    setRequestHeaders: function()
+    {
+        var headers = {
+            'X-Requested-With': 'XMLHttpRequest',
+            'X-Prototype-Version': Prototype.Version,
+            'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
+        };
+
+        if (this.method == 'post')
+        {
+            headers['Content-type'] = this.options.contentType +
+                                      (this.options.encoding ? '; charset=' + this.options.encoding : '');
+
+            /* Force "Connection: close" for older Mozilla browsers to work
+            * around a bug where XMLHttpRequest sends an incorrect
+            * Content-length header. See Mozilla Bugzilla #246651.
+            */
+            if (this.transport.overrideMimeType &&
+                (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
+                headers['Connection'] = 'close';
+        }
+
+    // user-defined headers
+        if (typeof this.options.requestHeaders == 'object')
+        {
+            var extras = this.options.requestHeaders;
+
+            if (Object.isFunction(extras.push))
+                for (var i = 0, length = extras.length; i < length; i += 2)
+                    headers[extras[i]] = extras[i + 1];
+            else
+                $H(extras).each(function(pair)
+                {
+                    headers[pair.key] = pair.value
+                });
+        }
+
+        for (var name in headers)
+            this.transport.setRequestHeader(name, headers[name]);
+    },
+
+    success: function()
+    {
+        var status = this.getStatus();
+        return !status || (status >= 200 && status < 300);
+    },
+
+    getStatus: function()
+    {
+        try
+        {
+            return this.transport.status || 0;
+        }
+        catch (e)
+        {
+            return 0
+        }
+    },
+
+    respondToReadyState: function(readyState)
+    {
+        var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
+
+        if (state == 'Complete')
+        {
+            try
+            {
+                this._complete = true;
+                (this.options['on' + response.status]
+                        || this.options['on' + (this.success() ? 'Success' : 'Failure')]
+                        || Prototype.emptyFunction)(response, response.headerJSON);
+            }
+            catch (e)
+            {
+                this.dispatchException(e);
+            }
+
+            var contentType = response.getHeader('Content-type');
+            if (this.options.evalJS == 'force'
+                    || (this.options.evalJS && contentType
+                    && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
+                this.evalResponse();
+        }
+
+        try
+        {
+            (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
+            Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
+        }
+        catch (e)
+        {
+            this.dispatchException(e);
+        }
+
+        if (state == 'Complete')
+        {
+            // avoid memory leak in MSIE: clean up
+            this.transport.onreadystatechange = Prototype.emptyFunction;
+        }
+    },
+
+    getHeader: function(name)
+    {
+        try
+        {
+            return this.transport.getResponseHeader(name);
+        }
+        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 = xml === undefined ? 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);
+        }
+        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')))
+            return null;
+        try
+        {
+            return this.transport.responseText.evalJSON(options.sanitizeJSON);
+        }
+        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 = options || { };
+        var onComplete = options.onComplete;
+        options.onComplete = (function(response, param)
+        {
+            this.updateContent(response.responseText);
+            if (Object.isFunction(onComplete)) onComplete(response, param);
+        }).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 = $(receiver))
+        {
+            if (options.insertion)
+            {
+                if (Object.isString(options.insertion))
+                {
+                    var insertion = { };
+                    insertion[options.insertion] = responseText;
+                    receiver.insert(insertion);
+                }
+                else options.insertion(receiver, responseText);
+            }
+            else receiver.update(responseText);
+        }
+
+        if (this.success())
+        {
+            if (this.onComplete) this.onComplete.bind(this).defer();
+        }
+    }
+});
+
+Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
+    initialize: function($super, container, url, options)
+    {
+        $super(options);
+        this.onComplete = this.options.onComplete;
+
+        this.frequency = (this.options.frequency || 2);
+        this.decay = (this.options.decay || 1);
+
+        this.updater = { };
+        this.container = container;
+        this.url = url;
+
+        this.start();
+    },
+
+    start: function()
+    {
+        this.options.onComplete = this.updateComplete.bind(this);
+        this.onTimerEvent();
+    },
+
+    stop: function()
+    {
+        this.updater.options.onComplete = undefined;
+        clearTimeout(this.timer);
+        (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
+    },
+
+    updateComplete: function(response)
+    {
+        if (this.options.decay)
+        {
+            this.decay = (response.responseText == this.lastText ?
+                          this.decay * this.options.decay : 1);
+
+            this.lastText = response.responseText;
+        }
+        this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
+    },
+
+    onTimerEvent: function()
+    {
+        this.updater = new Ajax.Updater(this.container, this.url, this.options);
+    }
+});
+function $(element)
+{
+    if (arguments.length > 1)
+    {
+        for (var i = 0, elements = [], length = arguments.length; i < length; i++)
+            elements.push($(arguments[i]));
+        return elements;
+    }
+    if (Object.isString(element))
+        element = document.getElementById(element);
+    return Element.extend(element);
+}
+
+if (Prototype.BrowserFeatures.XPath)
+{
+    document._getElementsByXPath = function(expression, parentElement)
+    {
+        var results = [];
+        var query = document.evaluate(expression, $(parentElement) || document,
+                null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
+        for (var i = 0, length = query.snapshotLength; i < length; i++)
+            results.push(Element.extend(query.snapshotItem(i)));
+        return results;
+    };
+}
+
+/*--------------------------------------------------------------------------*/
+
+if (!window.Node) var Node = { };
+
+if (!Node.ELEMENT_NODE)
+{
+    // DOM level 2 ECMAScript Language Binding
+    Object.extend(Node, {
+        ELEMENT_NODE: 1,
+        ATTRIBUTE_NODE: 2,
+        TEXT_NODE: 3,
+        CDATA_SECTION_NODE: 4,
+        ENTITY_REFERENCE_NODE: 5,
+        ENTITY_NODE: 6,
+        PROCESSING_INSTRUCTION_NODE: 7,
+        COMMENT_NODE: 8,
+        DOCUMENT_NODE: 9,
+        DOCUMENT_TYPE_NODE: 10,
+        DOCUMENT_FRAGMENT_NODE: 11,
+        NOTATION_NODE: 12
+    });
+}
+
+(function()
+{
+    var element = this.Element;
+    this.Element = function(tagName, attributes)
+    {
+        attributes = attributes || { };
+        tagName = tagName.toLowerCase();
+        var cache = Element.cache;
+        if (Prototype.Browser.IE && attributes.name)
+        {
+            tagName = '<' + tagName + ' name="' + attributes.name + '">';
+            delete attributes.name;
+            return Element.writeAttribute(document.createElement(tagName), attributes);
+        }
+        if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
+        return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
+    };
+    Object.extend(this.Element, element || { });
+}).call(window);
+
+Element.cache = { };
+
+Element.Methods = {
+    visible: function(element)
+    {
+        return $(element).style.display != 'none';
+    },
+
+    toggle: function(element)
+    {
+        element = $(element);
+        Element[Element.visible(element) ? 'hide' : 'show'](element);
+        return element;
+    },
+
+    hide: function(element)
+    {
+        $(element).style.display = 'none';
+        return element;
+    },
+
+    show: function(element)
+    {
+        $(element).style.display = '';
+        return element;
+    },
+
+    remove: function(element)
+    {
+        element = $(element);
+        element.parentNode.removeChild(element);
+        return element;
+    },
+
+    update: function(element, content)
+    {
+        element = $(element);
+        if (content && content.toElement) content = content.toElement();
+        if (Object.isElement(content)) return element.update().insert(content);
+        content = Object.toHTML(content);
+        element.innerHTML = content.stripScripts();
+        content.evalScripts.bind(content).defer();
+        return element;
+    },
+
+    replace: function(element, content)
+    {
+        element = $(element);
+        if (content && content.toElement) content = content.toElement();
+        else if (!Object.isElement(content))
+        {
+            content = Object.toHTML(content);
+            var range = element.ownerDocument.createRange();
+            range.selectNode(element);
+            content.evalScripts.bind(content).defer();
+            content = range.createContextualFragment(content.stripScripts());
+        }
+        element.parentNode.replaceChild(content, element);
+        return element;
+    },
+
+    insert: function(element, insertions)
+    {
+        element = $(element);
+
+        if (Object.isString(insertions) || Object.isNumber(insertions) ||
+            Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
+            insertions = {bottom:insertions};
+
+        var content, t, range;
+
+        for (position in insertions)
+        {
+            content = insertions[position];
+            position = position.toLowerCase();
+            t = Element._insertionTranslations[position];
+
+            if (content && content.toElement) content = content.toElement();
+            if (Object.isElement(content))
+            {
+                t.insert(element, content);
+                continue;
+            }
+
+            content = Object.toHTML(content);
+
+            range = element.ownerDocument.createRange();
+            t.initializeRange(element, range);
+            t.insert(element, range.createContextualFragment(content.stripScripts()));
+
+            content.evalScripts.bind(content).defer();
+        }
+
+        return element;
+    },
+
+    wrap: function(element, wrapper, attributes)
+    {
+        element = $(element);
+        if (Object.isElement(wrapper))
+            $(wrapper).writeAttribute(attributes || { });
+        else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
+        else wrapper = new Element('div', wrapper);
+        if (element.parentNode)
+            element.parentNode.replaceChild(wrapper, element);
+        wrapper.appendChild(element);
+        return wrapper;
+    },
+
+    inspect: function(element)
+    {
+        element = $(element);
+        var result = '<' + element.tagName.toLowerCase();
+        $H({'id': 'id', 'className': 'class'}).each(function(pair)
+        {
+            var property = pair.first(), attribute = pair.last();
+            var value = (element[property] || '').toString();
+            if (value) result += ' ' + attribute + '=' + value.inspect(true);
+        });
+        return result + '>';
+    },
+
+    recursivelyCollect: function(element, property)
+    {
+        element = $(element);
+        var elements = [];
+        while (element = element[property])
+            if (element.nodeType == 1)
+                elements.push(Element.extend(element));
+        return elements;
+    },
+
+    ancestors: function(element)
+    {
+        return $(element).recursivelyCollect('parentNode');
+    },
+
+    descendants: function(element)
+    {
+        return $A($(element).getElementsByTagName('*')).each(Element.extend);
+    },
+
+    firstDescendant: function(element)
+    {
+        element = $(element).firstChild;
+        while (element && element.nodeType != 1) element = element.nextSibling;
+        return $(element);
+    },
+
+    immediateDescendants: function(element)
+    {
+        if (!(element = $(element).firstChild)) return [];
+        while (element && element.nodeType != 1) element = element.nextSibling;
+        if (element) return [element].concat($(element).nextSiblings());
+        return [];
+    },
+
+    previousSiblings: function(element)
+    {
+        return $(element).recursivelyCollect('previousSibling');
+    },
+
+    nextSiblings: function(element)
+    {
+        return $(element).recursivelyCollect('nextSibling');
+    },
+
+    siblings: function(element)
+    {
+        element = $(element);
+        return element.previousSiblings().reverse().concat(element.nextSiblings());
+    },
+
+    match: function(element, selector)
+    {
+        if (Object.isString(selector))
+            selector = new Selector(selector);
+        return selector.match($(element));
+    },
+
+    up: function(element, expression, index)
+    {
+        element = $(element);
+        if (arguments.length == 1) return $(element.parentNode);
+        var ancestors = element.ancestors();
+        return expression ? Selector.findElement(ancestors, expression, index) :
+               ancestors[index || 0];
+    },
+
+    down: function(element, expression, index)
+    {
+        element = $(element);
+        if (arguments.length == 1) return element.firstDescendant();
+        var descendants = element.descendants();
+        return expression ? Selector.findElement(descendants, expression, index) :
+               descendants[index || 0];
+    },
+
+    previous: function(element, expression, index)
+    {
+        element = $(element);
+        if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
+        var previousSiblings = element.previousSiblings();
+        return expression ? Selector.findElement(previousSiblings, expression, index) :
+               previousSiblings[index || 0];
+    },
+
+    next: function(element, expression, index)
+    {
+        element = $(element);
+        if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
+        var nextSiblings = element.nextSiblings();
+        return expression ? Selector.findElement(nextSiblings, expression, index) :
+               nextSiblings[index || 0];
+    },
+
+    select: function()
+    {
+        var args = $A(arguments), element = $(args.shift());
+        return Selector.findChildElements(element, args);
+    },
+
+    adjacent: function()
+    {
+        var args = $A(arguments), element = $(args.shift());
+        return Selector.findChildElements(element.parentNode, args).without(element);
+    },
+
+    identify: function(element)
+    {
+        element = $(element);
+        var id = element.readAttribute('id'), self = arguments.callee;
+        if (id) return id;
+        do {
+            id = 'anonymous_element_' + self.counter++
+        } while ($(id));
+        element.writeAttribute('id', id);
+        return id;
+    },
+
+    readAttribute: function(element, name)
+    {
+        element = $(element);
+        if (Prototype.Browser.IE)
+        {
+            var t = Element._attributeTranslations.read;
+            if (t.values[name]) return t.values[name](element, name);
+            if (t.names[name]) name = t.names[name];
+            if (name.include(':'))
+            {
+                return (!element.attributes || !element.attributes[name]) ? null :
+                       element.attributes[name].value;
+            }
+        }
+        return element.getAttribute(name);
+    },
+
+    writeAttribute: function(element, name, value)
+    {
+        element = $(element);
+        var attributes = { }, t = Element._attributeTranslations.write;
+
+        if (typeof name == 'object') attributes = name;
+        else attributes[name] = value === undefined ? true : value;
+
+        for (var attr in attributes)
+        {
+            var name = t.names[attr] || attr, value = attributes[attr];
+            if (t.values[attr]) name = t.values[attr](element, value);
+            if (value === false || value === null)
+                element.removeAttribute(name);
+            else if (value === true)
+                element.setAttribute(name, name);
+            else element.setAttribute(name, value);
+        }
+        return element;
+    },
+
+    getHeight: function(element)
+    {
+        return $(element).getDimensions().height;
+    },
+
+    getWidth: function(element)
+    {
+        return $(element).getDimensions().width;
+    },
+
+    classNames: function(element)
+    {
+        return new Element.ClassNames(element);
+    },
+
+    hasClassName: function(element, className)
+    {
+        if (!(element = $(element))) return;
+        var elementClassName = element.className;
+        return (elementClassName.length > 0 && (elementClassName == className ||
+                                                new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
+    },
+
+    addClassName: function(element, className)
+    {
+        if (!(element = $(element))) return;
+        if (!element.hasClassName(className))
+            element.className += (element.className ? ' ' : '') + className;
+        return element;
+    },
+
+    removeClassName: function(element, className)
+    {
+        if (!(element = $(element))) return;
+        element.className = element.className.replace(
+                new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
+        return element;
+    },
+
+    toggleClassName: function(element, className)
+    {
+        if (!(element = $(element))) return;
+        return element[element.hasClassName(className) ?
+                       'removeClassName' : 'addClassName'](className);
+    },
+
+// removes whitespace-only text node children
+    cleanWhitespace: function(element)
+    {
+        element = $(element);
+        var node = element.firstChild;
+        while (node)
+        {
+            var nextNode = node.nextSibling;
+            if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
+                element.removeChild(node);
+            node = nextNode;
+        }
+        return element;
+    },
+
+    empty: function(element)
+    {
+        return $(element).innerHTML.blank();
+    },
+
+    descendantOf: function(element, ancestor)
+    {
+        element = $(element),ancestor = $(ancestor);
+
+        if (element.compareDocumentPosition)
+            return (element.compareDocumentPosition(ancestor) & 8) === 8;
+
+        if (element.sourceIndex && !Prototype.Browser.Opera)
+        {
+            var e = element.sourceIndex, a = ancestor.sourceIndex,
+                    nextAncestor = ancestor.nextSibling;
+            if (!nextAncestor)
+            {
+                do {
+                    ancestor = ancestor.parentNode;
+                }
+                while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
+            }
+            if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
+        }
+
+        while (element = element.parentNode)
+            if (element == ancestor) return true;
+        return false;
+    },
+
+    scrollTo: function(element)
+    {
+        element = $(element);
+        var pos = element.cumulativeOffset();
+        window.scrollTo(pos[0], pos[1]);
+        return element;
+    },
+
+    getStyle: function(element, style)
+    {
+        element = $(element);
+        style = style == 'float' ? 'cssFloat' : style.camelize();
+        var value = element.style[style];
+        if (!value)
+        {
+            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') ?
+                             (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :
+                             property] = styles[property];
+
+        return element;
+    },
+
+    setOpacity: function(element, value)
+    {
+        element = $(element);
+        element.style.opacity = (value == 1 || value === '') ? '' :
+                                (value < 0.00001) ? 0 : value;
+        return element;
+    },
+
+    getDimensions: function(element)
+    {
+        element = $(element);
+        var display = $(element).getStyle('display');
+        if (display != 'none' && display != null) // Safari bug
+            return {width: element.offsetWidth, height: element.offsetHeight};
+
+    // All *Width and *Height properties give 0 on elements with display none,
+        // so enable the element temporarily
+        var els = element.style;
+        var originalVisibility = els.visibility;
+        var originalPosition = els.position;
+        var originalDisplay = els.display;
+        els.visibility = 'hidden';
+        els.position = 'absolute';
+        els.display = 'block';
+        var originalWidth = element.clientWidth;
+        var originalHeight = element.clientHeight;
+        els.display = originalDisplay;
+        els.position = originalPosition;
+        els.visibility = originalVisibility;
+        return {width: originalWidth, height: originalHeight};
+    },
+
+    makePositioned: function(element)
+    {
+        element = $(element);
+        var pos = Element.getStyle(element, 'position');
+        if (pos == 'static' || !pos)
+        {
+            element._madePositioned = true;
+            element.style.position = 'relative';
+      // Opera returns the offset relative to the positioning context, when an
+            // element is position relative but top and left have not been defined
+            if (window.opera)
+            {
+                element.style.top = 0;
+                element.style.left = 0;
+            }
+        }
+        return element;
+    },
+
+    undoPositioned: function(element)
+    {
+        element = $(element);
+        if (element._madePositioned)
+        {
+            element._madePositioned = undefined;
+            element.style.position =
+            element.style.top =
+            element.style.left =
+            element.style.bottom =
+            element.style.right = '';
+        }
+        return element;
+    },
+
+    makeClipping: function(element)
+    {
+        element = $(element);
+        if (element._overflow) return element;
+        element._overflow = Element.getStyle(element, 'overflow') || 'auto';
+        if (element._overflow !== 'hidden')
+            element.style.overflow = 'hidden';
+        return element;
+    },
+
+    undoClipping: function(element)
+    {
+        element = $(element);
+        if (!element._overflow) return element;
+        element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
+        element._overflow = null;
+        return element;
+    },
+
+    cumulativeOffset: function(element)
+    {
+        var valueT = 0, valueL = 0;
+        do {
+            valueT += element.offsetTop || 0;
+            valueL += element.offsetLeft || 0;
+            element = element.offsetParent;
+        } while (element);
+        return Element._returnOffset(valueL, valueT);
+    },
+
+    positionedOffset: function(element)
+    {
+        var valueT = 0, valueL = 0;
+        do {
+            valueT += element.offsetTop || 0;
+            valueL += element.offsetLeft || 0;
+            element = element.offsetParent;
+            if (element)
+            {
+                if (element.tagName == 'BODY') break;
+                var p = Element.getStyle(element, 'position');
+                if (p == 'relative' || p == 'absolute') break;
+            }
+        } while (element);
+        return Element._returnOffset(valueL, valueT);
+    },
+
+    absolutize: function(element)
+    {
+        element = $(element);
+        if (element.getStyle('position') == 'absolute') return;
+    // Position.prepare(); // To be done manually by Scripty when it needs it.
+
+        var offsets = element.positionedOffset();
+        var top = offsets[1];
+        var left = offsets[0];
+        var width = element.clientWidth;
+        var height = element.clientHeight;
+
+        element._originalLeft = left - parseFloat(element.style.left || 0);
+        element._originalTop = top - parseFloat(element.style.top || 0);
+        element._originalWidth = element.style.width;
+        element._originalHeight = element.style.height;
+
+        element.style.position = 'absolute';
+        element.style.top = top + 'px';
+        element.style.left = left + 'px';
+        element.style.width = width + 'px';
+        element.style.height = height + 'px';
+        return element;
+    },
+
+    relativize: function(element)
+    {
+        element = $(element);
+        if (element.getStyle('position') == 'relative') return;
+    // Position.prepare(); // To be done manually by Scripty when it needs it.
+
+        element.style.position = 'relative';
+        var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
+        var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
+
+        element.style.top = top + 'px';
+        element.style.left = left + 'px';
+        element.style.height = element._originalHeight;
+        element.style.width = element._originalWidth;
+        return element;
+    },
+
+    cumulativeScrollOffset: function(element)
+    {
+        var valueT = 0, valueL = 0;
+        do {
+            valueT += element.scrollTop || 0;
+            valueL += element.scrollLeft || 0;
+            element = element.parentNode;
+        } while (element);
+        return Element._returnOffset(valueL, valueT);
+    },
+
+    getOffsetParent: function(element)
+    {
+        if (element.offsetParent) return $(element.offsetParent);
+        if (element == document.body) return $(element);
+
+        while ((element = element.parentNode) && element != document.body)
+            if (Element.getStyle(element, 'position') != 'static')
+                return $(element);
+
+        return $(document.body);
+    },
+
+    viewportOffset: function(forElement)
+    {
+        var valueT = 0, valueL = 0;
+
+        var element = forElement;
+        do {
+            valueT += element.offsetTop || 0;
+            valueL += element.offsetLeft || 0;
+
+      // Safari fix
+            if (element.offsetParent == document.body &&
+                Element.getStyle(element, 'position') == 'absolute') break;
+
+        } while (element = element.offsetParent);
+
+        element = forElement;
+        do {
+            if (!Prototype.Browser.Opera || element.tagName == 'BODY')
+            {
+                valueT -= element.scrollTop || 0;
+                valueL -= element.scrollLeft || 0;
+            }
+        } while (element = element.parentNode);
+
+        return Element._returnOffset(valueL, valueT);
+    },
+
+    clonePosition: function(element, source)
+    {
+        var options = Object.extend({
+            setLeft:    true,
+            setTop:     true,
+            setWidth:   true,
+            setHeight:  true,
+            offsetTop:  0,
+            offsetLeft: 0
+        }, arguments[2] || { });
+
+    // find page position of source
+        source = $(source);
+        var p = source.viewportOffset();
+
+    // find coordinate system to use
+        element = $(element);
+        var delta = [0, 0];
+        var parent = null;
+    // delta [0,0] will do fine with position: fixed elements,
+        // position:absolute needs offsetParent deltas
+        if (Element.getStyle(element, 'position') == 'absolute')
+        {
+            parent = element.getOffsetParent();
+            delta = parent.viewportOffset();
+        }
+
+    // correct by body offsets (fixes Safari)
+        if (parent == document.body)
+        {
+            delta[0] -= document.body.offsetLeft;
+            delta[1] -= document.body.offsetTop;
+        }
+
+    // set position
+        if (options.setLeft)   element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
+        if (options.setTop)    element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
+        if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
+        if (options.setHeight) element.style.height = source.offsetHeight + 'px';
+        return element;
+    }
+};
+
+Element.Methods.identify.counter = 1;
+
+Object.extend(Element.Methods, {
+    getElementsBySelector: Element.Methods.select,
+    childElements: Element.Methods.immediateDescendants
+});
+
+Element._attributeTranslations = {
+    write: {
+        names: {
+            className: 'class',
+            htmlFor:   'for'
+        },
+        values: { }
+    }
+};
+
+
+if (!document.createRange || Prototype.Browser.Opera)
+{
+    Element.Methods.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 t = Element._insertionTranslations, content, position, pos, tagName;
+
+        for (position in insertions)
+        {
+            content = insertions[position];
+            position = position.toLowerCase();
+            pos = t[position];
+
+            if (content && content.toElement) content = content.toElement();
+            if (Object.isElement(content))
+            {
+                pos.insert(element, content);
+                continue;
+            }
+
+            content = Object.toHTML(content);
+            tagName = ((position == 'before' || position == 'after')
+                    ? element.parentNode : element).tagName.toUpperCase();
+
+            if (t.tags[tagName])
+            {
+                var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
+                if (position == 'top' || position == 'after') fragments.reverse();
+                fragments.each(pos.insert.curry(element));
+            }
+            else element.insertAdjacentHTML(pos.adjacency, content.stripScripts());
+
+            content.evalScripts.bind(content).defer();
+        }
+
+        return element;
+    };
+}
+
+if (Prototype.Browser.Opera)
+{
+    Element.Methods._getStyle = Element.Methods.getStyle;
+    Element.Methods.getStyle = function(element, style)
+    {
+        switch (style)
+                {
+            case 'left':
+            case 'top':
+            case 'right':
+            case 'bottom':
+                if (Element._getStyle(element, 'position') == 'static') return null;
+            default: return Element._getStyle(element, style);
+        }
+    };
+    Element.Methods._readAttribute = Element.Methods.readAttribute;
+    Element.Methods.readAttribute = function(element, attribute)
+    {
+        if (attribute == 'title') return element.title;
+        return Element._readAttribute(element, attribute);
+    };
+}
+
+else if (Prototype.Browser.IE)
+{
+    $w('positionedOffset getOffsetParent viewportOffset').each(function(method)
+    {
+        Element.Methods[method] = Element.Methods[method].wrap(
+                function(proceed, element)
+                {
+                    element = $(element);
+                    var position = element.getStyle('position');
+                    if (position != 'static') return proceed(element);
+                    element.setStyle({ position: 'relative' });
+                    var value = proceed(element);
+                    element.setStyle({ position: position });
+                    return value;
+                }
+                );
+    });
+
+    Element.Methods.getStyle = function(element, style)
+    {
+        element = $(element);
+        style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
+        var value = element.style[style];
+        if (!value && element.currentStyle) value = element.currentStyle[style];
+
+        if (style == 'opacity')
+        {
+            if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
+                if (value[1]) return parseFloat(value[1]) / 100;
+            return 1.0;
+        }
+
+        if (value == 'auto')
+        {
+            if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
+                return element['offset' + style.capitalize()] + 'px';
+            return null;
+        }
+        return value;
+    };
+
+    Element.Methods.setOpacity = function(element, value)
+    {
+        function stripAlpha(filter)
+        {
+            return filter.replace(/alpha\([^\)]*\)/gi, '');
+        }
+        element = $(element);
+        var currentStyle = element.currentStyle;
+        if ((currentStyle && !currentStyle.hasLayout) ||
+            (!currentStyle && element.style.zoom == 'normal'))
+            element.style.zoom = 1;
+
+        var filter = element.getStyle('filter'), style = element.style;
+        if (value == 1 || value === '')
+        {
+            (filter = stripAlpha(filter)) ?
+            style.filter = filter : style.removeAttribute('filter');
+            return element;
+        }
+        else if (value < 0.00001) value = 0;
+        style.filter = stripAlpha(filter) +
+                       'alpha(opacity=' + (value * 100) + ')';
+        return element;
+    };
+
+    Element._attributeTranslations = {
+        read: {
+            names: {
+                'class': 'className',
+                'for':   'htmlFor'
+            },
+            values: {
+                _getAttr: function(element, attribute)
+                {
+                    return element.getAttribute(attribute, 2);
+                },
+                _getAttrNode: function(element, attribute)
+                {
+                    var node = element.getAttributeNode(attribute);
+                    return node ? node.value : "";
+                },
+                _getEv: function(element, attribute)
+                {
+                    var attribute = element.getAttribute(attribute);
+                    return attribute ? attribute.toString().slice(23, -2) : null;
+                },
+                _flag: function(element, attribute)
+                {
+                    return $(element).hasAttribute(attribute) ? attribute : null;
+                },
+                style: function(element)
+                {
+                    return element.style.cssText.toLowerCase();
+                },
+                title: function(element)
+                {
+                    return element.title;
+                }
+            }
+        }
+    };
+
+    Element._attributeTranslations.write = {
+        names: Object.clone(Element._attributeTranslations.read.names),
+        values: {
+            checked: function(element, value)
+            {
+                element.checked = !!value;
+            },
+
+            style: function(element, value)
+            {
+                element.style.cssText = value ? value : '';
+            }
+        }
+    };
+
+    Element._attributeTranslations.has = {};
+
+    $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
+       'encType maxLength readOnly longDesc').each(function(attr)
+    {
+        Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
+        Element._attributeTranslations.has[attr.toLowerCase()] = attr;
+    });
+
+    (function(v)
+    {
+        Object.extend(v, {
+            href:        v._getAttr,
+            src:         v._getAttr,
+            type:        v._getAttr,
+            action:      v._getAttrNode,
+            disabled:    v._flag,
+            checked:     v._flag,
+            readonly:    v._flag,
+            multiple:    v._flag,
+            onload:      v._getEv,
+            onunload:    v._getEv,
+            onclick:     v._getEv,
+            ondblclick:  v._getEv,
+            onmousedown: v._getEv,
+            onmouseup:   v._getEv,
+            onmouseover: v._getEv,
+            onmousemove: v._getEv,
+            onmouseout:  v._getEv,
+            onfocus:     v._getEv,
+            onblur:      v._getEv,
+            onkeypress:  v._getEv,
+            onkeydown:   v._getEv,
+            onkeyup:     v._getEv,
+            onsubmit:    v._getEv,
+            onreset:     v._getEv,
+            onselect:    v._getEv,
+            onchange:    v._getEv
+        });
+    })(Element._attributeTranslations.read.values);
+}
+
+else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent))
+{
+    Element.Methods.setOpacity = function(element, value)
+    {
+        element = $(element);
+        element.style.opacity = (value == 1) ? 0.999999 :
+                                (value === '') ? '' : (value < 0.00001) ? 0 : value;
+        return element;
+    };
+}
+
+else if (Prototype.Browser.WebKit)
+{
+    Element.Methods.setOpacity = function(element, value)
+    {
+        element = $(element);
+        element.style.opacity = (value == 1 || value === '') ? '' :
+                                (value < 0.00001) ? 0 : value;
+
+        if (value == 1)
+            if (element.tagName == 'IMG' && element.width)
+            {
+                element.width++;
+                element.width--;
+            }
+            else try
+            {
+                var n = document.createTextNode(' ');
+                element.appendChild(n);
+                element.removeChild(n);
+            }
+            catch (e)
+            {
+            }
+
+        return element;
+    };
+
+  // Safari returns margins on body which is incorrect if the child is absolutely
+    // positioned.  For performance reasons, redefine Position.cumulativeOffset for
+    // KHTML/WebKit only.
+    Element.Methods.cumulativeOffset = function(element)
+    {
+        var valueT = 0, valueL = 0;
+        do {
+            valueT += element.offsetTop || 0;
+            valueL += element.offsetLeft || 0;
+            if (element.offsetParent == document.body)
+                if (Element.getStyle(element, 'position') == 'absolute') break;
+
+            element = element.offsetParent;
+        } while (element);
+
+        return Element._returnOffset(valueL, valueT);
+    };
+}
+
+if (Prototype.Browser.IE || Prototype.Browser.Opera)
+{
+    // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
+    Element.Methods.update = function(element, content)
+    {
+        element = $(element);
+
+        if (content && content.toElement) content = content.toElement();
+        if (Object.isElement(content)) return element.update().insert(content);
+
+        content = Object.toHTML(content);
+        var tagName = element.tagName.toUpperCase();
+
+        if (tagName in Element._insertionTranslations.tags)
+        {
+            $A(element.childNodes).each(function(node)
+            {
+                element.removeChild(node)
+            });
+            Element._getContentFromAnonymousElement(tagName, content.stripScripts())
+                    .each(function(node)
+            {
+                element.appendChild(node)
+            });
+        }
+        else element.innerHTML = content.stripScripts();
+
+        content.evalScripts.bind(content).defer();
+        return element;
+    };
+}
+
+if (document.createElement('div').outerHTML)
+{
+    Element.Methods.replace = function(element, content)
+    {
+        element = $(element);
+
+        if (content && content.toElement) content = content.toElement();
+        if (Object.isElement(content))
+        {
+            element.parentNode.replaceChild(content, element);
+            return element;
+        }
+
+        content = Object.toHTML(content);
+        var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
+
+        if (Element._insertionTranslations.tags[tagName])
+        {
+            var nextSibling = element.next();
+            var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
+            parent.removeChild(element);
+            if (nextSibling)
+                fragments.each(function(node)
+                {
+                    parent.insertBefore(node, nextSibling)
+                });
+            else
+                fragments.each(function(node)
+                {
+                    parent.appendChild(node)
+                });
+        }
+        else element.outerHTML = content.stripScripts();
+
+        content.evalScripts.bind(content).defer();
+        return element;
+    };
+}
+
+Element._returnOffset = function(l, t)
+{
+    var result = [l, t];
+    result.left = l;
+    result.top = t;
+    return result;
+};
+
+Element._getContentFromAnonymousElement = function(tagName, html)
+{
+    var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
+    div.innerHTML = t[0] + html + t[1];
+    t[2].times(function()
+    {
+        div = div.firstChild
+    });
+    return $A(div.childNodes);
+};
+
+Element._insertionTranslations = {
+    before: {
+        adjacency: 'beforeBegin',
+        insert: function(element, node)
+        {
+            element.parentNode.insertBefore(node, element);
+        },
+        initializeRange: function(element, range)
+        {
+            range.setStartBefore(element);
+        }
+    },
+    top: {
+        adjacency: 'afterBegin',
+        insert: function(element, node)
+        {
+            element.insertBefore(node, element.firstChild);
+        },
+        initializeRange: function(element, range)
+        {
+            range.selectNodeContents(element);
+            range.collapse(true);
+        }
+    },
+    bottom: {
+        adjacency: 'beforeEnd',
+        insert: function(element, node)
+        {
+            element.appendChild(node);
+        }
+    },
+    after: {
+        adjacency: 'afterEnd',
+        insert: function(element, node)
+        {
+            element.parentNode.insertBefore(node, element.nextSibling);
+        },
+        initializeRange: function(element, range)
+        {
+            range.setStartAfter(element);
+        }
+    },
+    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()
+{
+    this.bottom.initializeRange = this.top.initializeRange;
+    Object.extend(this.tags, {
+        THEAD: this.tags.TBODY,
+        TFOOT: this.tags.TBODY,
+        TH:    this.tags.TD
+    });
+}).call(Element._insertionTranslations);
+
+Element.Methods.Simulated = {
+    hasAttribute: function(element, attribute)
+    {
+        attribute = Element._attributeTranslations.has[attribute] || attribute;
+        var node = $(element).getAttributeNode(attribute);
+        return node && node.specified;
+    }
+};
+
+Element.Methods.ByTag = { };
+
+Object.extend(Element, Element.Methods);
+
+if (!Prototype.BrowserFeatures.ElementExtensions &&
+    document.createElement('div').__proto__)
+{
+    window.HTMLElement = { };
+    window.HTMLElement.prototype = document.createElement('div').__proto__;
+    Prototype.BrowserFeatures.ElementExtensions = true;
+}
+
+Element.extend = (function()
+{
+    if (Prototype.BrowserFeatures.SpecificElementExtensions)
+        return Prototype.K;
+
+    var Methods = { }, ByTag = Element.Methods.ByTag;
+
+    var extend = Object.extend(function(element)
+    {
+        if (!element || element._extendedByPrototype ||
+            element.nodeType != 1 || element == window) return element;
+
+        var methods = Object.clone(Methods),
+                tagName = element.tagName, property, value;
+
+    // extend methods for specific tags
+        if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
+
+        for (property in methods)
+        {
+            value = methods[property];
+            if (Object.isFunction(value) && !(property in element))
+                element[property] = value.methodize();
+        }
+
+        element._extendedByPrototype = Prototype.emptyFunction;
+        return element;
+
+    }, {
+        refresh: function()
+        {
+            // extend methods for all tags (Safari doesn't need this)
+            if (!Prototype.BrowserFeatures.ElementExtensions)
+            {
+                Object.extend(Methods, Element.Methods);
+                Object.extend(Methods, Element.Methods.Simulated);
+            }
+        }
+    });
+
+    extend.refresh();
+    return extend;
+})();
+
+Element.hasAttribute = function(element, attribute)
+{
+    if (element.hasAttribute) return element.hasAttribute(attribute);
+    return Element.Methods.Simulated.hasAttribute(element, attribute);
+};
+
+Element.addMethods = function(methods)
+{
+    var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
+
+    if (!methods)
+    {
+        Object.extend(Form, Form.Methods);
+        Object.extend(Form.Element, Form.Element.Methods);
+        Object.extend(Element.Methods.ByTag, {
+            "FORM":     Object.clone(Form.Methods),
+            "INPUT":    Object.clone(Form.Element.Methods),
+            "SELECT":   Object.clone(Form.Element.Methods),
+            "TEXTAREA": Object.clone(Form.Element.Methods)
+        });
+    }
+
+    if (arguments.length == 2)
+    {
+        var tagName = methods;
+        methods = arguments[1];
+    }
+
+    if (!tagName) Object.extend(Element.Methods, methods || { });
+    else
+    {
+        if (Object.isArray(tagName)) tagName.each(extend);
+        else extend(tagName);
+    }
+
+    function extend(tagName)
+    {
+        tagName = tagName.toUpperCase();
+        if (!Element.Methods.ByTag[tagName])
+            Element.Methods.ByTag[tagName] = { };
+        Object.extend(Element.Methods.ByTag[tagName], methods);
+    }
+
+    function copy(methods, destination, onlyIfAbsent)
+    {
+        onlyIfAbsent = onlyIfAbsent || false;
+        for (var property in methods)
+        {
+            var value = methods[property];
+            if (!Object.isFunction(value)) continue;
+            if (!onlyIfAbsent || !(property in destination))
+                destination[property] = value.methodize();
+        }
+    }
+
+    function findDOMClass(tagName)
+    {
+        var klass;
+        var trans = {
+            "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
+            "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
+            "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
+            "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
+            "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
+                "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
+                "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
+                "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
+                "FrameSet", "IFRAME": "IFrame"
+        };
+        if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
+        if (window[klass]) return window[klass];
+        klass = 'HTML' + tagName + 'Element';
+        if (window[klass]) return window[klass];
+        klass = 'HTML' + tagName.capitalize() + 'Element';
+        if (window[klass]) return window[klass];
+
+        window[klass] = { };
+        window[klass].prototype = document.createElement(tagName).__proto__;
+        return window[klass];
+    }
+
+    if (F.ElementExtensions)
+    {
+        copy(Element.Methods, HTMLElement.prototype);
+        copy(Element.Methods.Simulated, HTMLElement.prototype, true);
+    }
+
+    if (F.SpecificElementExtensions)
+    {
+        for (var tag in Element.Methods.ByTag)
+        {
+            var klass = findDOMClass(tag);
+            if (Object.isUndefined(klass)) continue;
+            copy(T[tag], klass.prototype);
+        }
+    }
+
+    Object.extend(Element, Element.Methods);
+    delete Element.ByTag;
+
+    if (Element.extend.refresh) Element.extend.refresh();
+    Element.cache = { };
+};
+
+document.viewport = {
+    getDimensions: function()
+    {
+        var dimensions = { };
+        $w('width height').each(function(d)
+        {
+            var D = d.capitalize();
+            dimensions[d] = self['inner' + D] ||
+                            (document.documentElement['client' + D] || document.body['client' + D]);
+        });
+        return dimensions;
+    },
+
+    getWidth: function()
+    {
+        return this.getDimensions().width;
+    },
+
+    getHeight: function()
+    {
+        return this.getDimensions().height;
+    },
+
+    getScrollOffsets: function()
+    {
+        return Element._returnOffset(
+                window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
+                window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
+    }
+};
+/* Portions of the Selector class are derived from Jack Slocum?s DomQuery,
+ * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
+ * license.  Please see http://www.yui-ext.com/ for more information. */
+
+var Selector = Class.create({
+    initialize: function(expression)
+    {
+        this.expression = expression.strip();
+        this.compileMatcher();
+    },
+
+    compileMatcher: function()
+    {
+        // Selectors with namespaced attributes can't use the XPath version
+        if (Prototype.BrowserFeatures.XPath && !(/(\[[\w-]*?:|:checked)/).test(this.expression))
+            return this.compileXPathMatcher();
+
+        var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
+                c = Selector.criteria, le, p, m;
+
+        if (Selector._cache[e])
+        {
+            this.matcher = Selector._cache[e];
+            return;
+        }
+
+        this.matcher = ["this.matcher = function(root) {",
+                "var r = root, h = Selector.handlers, c = false, n;"];
+
+        while (e && le != e && (/\S/).test(e))
+        {
+            le = e;
+            for (var i in ps)
+            {
+                p = ps[i];
+                if (m = e.match(p))
+                {
+                    this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
+                                      new Template(c[i]).evaluate(m));
+                    e = e.replace(m[0], '');
+                    break;
+                }
+            }
+        }
+
+        this.matcher.push("return h.unique(n);\n}");
+        eval(this.matcher.join('\n'));
+        Selector._cache[this.expression] = this.matcher;
+    },
+
+    compileXPathMatcher: function()
+    {
+        var e = this.expression, ps = Selector.patterns,
+                x = Selector.xpath, le, m;
+
+        if (Selector._cache[e])
+        {
+            this.xpath = Selector._cache[e];
+            return;
+        }
+
+        this.matcher = ['.//*'];
+        while (e && le != e && (/\S/).test(e))
+        {
+            le = e;
+            for (var i in ps)
+            {
+                if (m = e.match(ps[i]))
+                {
+                    this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
+                                      new Template(x[i]).evaluate(m));
+                    e = e.replace(m[0], '');
+                    break;
+                }
+            }
+        }
+
+        this.xpath = this.matcher.join('');
+        Selector._cache[this.expression] = this.xpath;
+    },
+
+    findElements: function(root)
+    {
+        root = root || document;
+        if (this.xpath) return document._getElementsByXPath(this.xpath, root);
+        return this.matcher(root);
+    },
+
+    match: function(element)
+    {
+        this.tokens = [];
+
+        var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
+        var le, p, m;
+
+        while (e && le !== e && (/\S/).test(e))
+        {
+            le = e;
+            for (var i in ps)
+            {
+                p = ps[i];
+                if (m = e.match(p))
+                {
+                    // use the Selector.assertions methods unless the selector
+                    // is too complex.
+                    if (as[i])
+                    {
+                        this.tokens.push([i, Object.clone(m)]);
+                        e = e.replace(m[0], '');
+                    }
+                    else
+                    {
+                        // reluctantly do a document-wide search
+                        // and look for a match in the array
+                        return this.findElements(document).include(element);
+                    }
+                }
+            }
+        }
+
+        var match = true, name, matches;
+        for (var i = 0, token; token = this.tokens[i]; i++)
+        {
+            name = token[0],matches = token[1];
+            if (!Selector.assertions[name](element, matches))
+            {
+                match = false;
+                break;
+            }
+        }
+
+        return match;
+    },
+
+    toString: function()
+    {
+        return this.expression;
+    },
+
+    inspect: function()
+    {
+        return "#<Selector:" + this.expression.inspect() + ">";
+    }
+});
+
+Object.extend(Selector, {
+    _cache: { },
+
+    xpath: {
+        descendant:   "//*",
+        child:        "/*",
+        adjacent:     "/following-sibling::*[1]",
+        laterSibling: '/following-sibling::*',
+        tagName:      function(m)
+        {
+            if (m[1] == '*') return '';
+            return "[local-name()='" + m[1].toLowerCase() +
+                   "' or local-name()='" + m[1].toUpperCase() + "']";
+        },
+        className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
+        id:           "[@id='#{1}']",
+        attrPresence: "[@#{1}]",
+        attr: function(m)
+        {
+            m[3] = m[5] || m[6];
+            return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
+        },
+        pseudo: function(m)
+        {
+            var h = Selector.xpath.pseudos[m[1]];
+            if (!h) return '';
+            if (Object.isFunction(h)) return h(m);
+            return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
+        },
+        operators: {
+            '=':  "[@#{1}='#{3}']",
+            '!=': "[@#{1}!='#{3}']",
+            '^=': "[starts-with(@#{1}, '#{3}')]",
+            '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
+            '*=': "[contains(@#{1}, '#{3}')]",
+            '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
+            '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
+        },
+        pseudos: {
+            'first-child': '[not(preceding-sibling::*)]',
+            'last-child':  '[not(following-sibling::*)]',
+            'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
+            'empty':       "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
+            'checked':     "[@checked]",
+            'disabled':    "[@disabled]",
+            'enabled':     "[not(@disabled)]",
+            'not': function(m)
+            {
+                var e = m[6], p = Selector.patterns,
+                        x = Selector.xpath, le, m, v;
+
+                var exclusion = [];
+                while (e && le != e && (/\S/).test(e))
+                {
+                    le = e;
+                    for (var i in p)
+                    {
+                        if (m = e.match(p[i]))
+                        {
+                            v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
+                            exclusion.push("(" + v.substring(1, v.length - 1) + ")");
+                            e = e.replace(m[0], '');
+                            break;
+                        }
+                    }
+                }
+                return "[not(" + exclusion.join(" and ") + ")]";
+            },
+            'nth-child':      function(m)
+            {
+                return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
+            },
+            'nth-last-child': function(m)
+            {
+                return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
+            },
+            'nth-of-type':    function(m)
+            {
+                return Selector.xpath.pseudos.nth("position() ", m);
+            },
+            'nth-last-of-type': function(m)
+            {
+                return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
+            },
+            'first-of-type':  function(m)
+            {
+                m[6] = "1";
+                return Selector.xpath.pseudos['nth-of-type'](m);
+            },
+            'last-of-type':   function(m)
+            {
+                m[6] = "1";
+                return Selector.xpath.pseudos['nth-last-of-type'](m);
+            },
+            'only-of-type':   function(m)
+            {
+                var p = Selector.xpath.pseudos;
+                return p['first-of-type'](m) + p['last-of-type'](m);
+            },
+            nth: function(fragment, m)
+            {
+                var mm, formula = m[6], predicate;
+                if (formula == 'even') formula = '2n+0';
+                if (formula == 'odd')  formula = '2n+1';
+                if (mm = formula.match(/^(\d+)$/)) // digit only
+                    return '[' + fragment + "= " + mm[1] + ']';
+                if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/))
+                { // an+b
+                    if (mm[1] == "-") mm[1] = -1;
+                    var a = mm[1] ? Number(mm[1]) : 1;
+                    var b = mm[2] ? Number(mm[2]) : 0;
+                    predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
+                                "((#{fragment} - #{b}) div #{a} >= 0)]";
+                    return new Template(predicate).evaluate({
+                        fragment: fragment, a: a, b: b });
+                }
+            }
+        }
+    },
+
+    criteria: {
+        tagName:      'n = h.tagName(n, r, "#{1}", c);   c = false;',
+        className:    'n = h.className(n, r, "#{1}", c); c = false;',
+        id:           'n = h.id(n, r, "#{1}", c);        c = false;',
+        attrPresence: 'n = h.attrPresence(n, r, "#{1}"); c = false;',
+        attr: function(m)
+        {
+            m[3] = (m[5] || m[6]);
+            return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); c = false;').evaluate(m);
+        },
+        pseudo: function(m)
+        {
+            if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
+            return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
+        },
+        descendant:   'c = "descendant";',
+        child:        'c = "child";',
+        adjacent:     'c = "adjacent";',
+        laterSibling: 'c = "laterSibling";'
+    },
+
+    patterns: {
+    // combinators must be listed first
+    // (and descendant needs to be last combinator)
+        laterSibling: /^\s*~\s*/,
+        child:        /^\s*>\s*/,
+        adjacent:     /^\s*\+\s*/,
+        descendant:   /^\s/,
+
+    // selectors follow
+        tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
+        id:           /^#([\w\-\*]+)(\b|$)/,
+        className:    /^\.([\w\-\*]+)(\b|$)/,
+        pseudo:       /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s)|(?=:))/,
+        attrPresence: /^\[([\w]+)\]/,
+        attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
+    },
+
+// for Selector.match and Element#match
+    assertions: {
+        tagName: function(element, matches)
+        {
+            return matches[1].toUpperCase() == element.tagName.toUpperCase();
+        },
+
+        className: function(element, matches)
+        {
+            return Element.hasClassName(element, matches[1]);
+        },
+
+        id: function(element, matches)
+        {
+            return element.id === matches[1];
+        },
+
+        attrPresence: function(element, matches)
+        {
+            return Element.hasAttribute(element, matches[1]);
+        },
+
+        attr: function(element, matches)
+        {
+            var nodeValue = Element.readAttribute(element, matches[1]);
+            return Selector.operators[matches[2]](nodeValue, matches[3]);
+        }
+    },
+
+    handlers: {
+    // UTILITY FUNCTIONS
+    // joins two collections
+        concat: function(a, b)
+        {
+            for (var i = 0, node; node = b[i]; i++)
+                a.push(node);
+            return a;
+        },
+
+    // marks an array of nodes for counting
+        mark: function(nodes)
+        {
+            for (var i = 0, node; node = nodes[i]; i++)
+                node._counted = true;
+            return nodes;
+        },
+
+        unmark: function(nodes)
+        {
+            for (var i = 0, node; node = nodes[i]; i++)
+                node._counted = undefined;
+            return nodes;
+        },
+
+    // mark each child node with its position (for nth calls)
+    // "ofType" flag indicates whether we're indexing for nth-of-type
+    // rather than nth-child
+        index: function(parentNode, reverse, ofType)
+        {
+            parentNode._counted = true;
+            if (reverse)
+            {
+                for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--)
+                {
+                    var node = nodes[i];
+                    if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
+                }
+            }
+            else
+            {
+                for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
+                    if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
+            }
+        },
+
+    // filters out duplicates and extends all nodes
+        unique: function(nodes)
+        {
+            if (nodes.length == 0) return nodes;
+            var results = [], n;
+            for (var i = 0, l = nodes.length; i < l; i++)
+                if (!(n = nodes[i])._counted)
+                {
+                    n._counted = true;
+                    results.push(Element.extend(n));
+                }
+            return Selector.handlers.unmark(results);
+        },
+
+    // COMBINATOR FUNCTIONS
+        descendant: function(nodes)
+        {
+            var h = Selector.handlers;
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                h.concat(results, node.getElementsByTagName('*'));
+            return results;
+        },
+
+        child: function(nodes)
+        {
+            var h = Selector.handlers;
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+            {
+                for (var j = 0, children = [], child; child = node.childNodes[j]; j++)
+                    if (child.nodeType == 1 && child.tagName != '!') results.push(child);
+            }
+            return results;
+        },
+
+        adjacent: function(nodes)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+            {
+                var next = this.nextElementSibling(node);
+                if (next) results.push(next);
+            }
+            return results;
+        },
+
+        laterSibling: function(nodes)
+        {
+            var h = Selector.handlers;
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                h.concat(results, Element.nextSiblings(node));
+            return results;
+        },
+
+        nextElementSibling: function(node)
+        {
+            while (node = node.nextSibling)
+                if (node.nodeType == 1) return node;
+            return null;
+        },
+
+        previousElementSibling: function(node)
+        {
+            while (node = node.previousSibling)
+                if (node.nodeType == 1) return node;
+            return null;
+        },
+
+    // TOKEN FUNCTIONS
+        tagName: function(nodes, root, tagName, combinator)
+        {
+            tagName = tagName.toUpperCase();
+            var results = [], h = Selector.handlers;
+            if (nodes)
+            {
+                if (combinator)
+                {
+                    // fastlane for ordinary descendant combinators
+                    if (combinator == "descendant")
+                    {
+                        for (var i = 0, node; node = nodes[i]; i++)
+                            h.concat(results, node.getElementsByTagName(tagName));
+                        return results;
+                    }
+                    else nodes = this[combinator](nodes);
+                    if (tagName == "*") return nodes;
+                }
+                for (var i = 0, node; node = nodes[i]; i++)
+                    if (node.tagName.toUpperCase() == tagName) results.push(node);
+                return results;
+            }
+            else return root.getElementsByTagName(tagName);
+        },
+
+        id: function(nodes, root, id, combinator)
+        {
+            var targetNode = $(id), h = Selector.handlers;
+            if (!targetNode) return [];
+            if (!nodes && root == document) return [targetNode];
+            if (nodes)
+            {
+                if (combinator)
+                {
+                    if (combinator == 'child')
+                    {
+                        for (var i = 0, node; node = nodes[i]; i++)
+                            if (targetNode.parentNode == node) return [targetNode];
+                    }
+                    else if (combinator == 'descendant')
+                    {
+                        for (var i = 0, node; node = nodes[i]; i++)
+                            if (Element.descendantOf(targetNode, node)) return [targetNode];
+                    }
+                    else if (combinator == 'adjacent')
+                    {
+                        for (var i = 0, node; node = nodes[i]; i++)
+                            if (Selector.handlers.previousElementSibling(targetNode) == node)
+                                return [targetNode];
+                    }
+                    else nodes = h[combinator](nodes);
+                }
+                for (var i = 0, node; node = nodes[i]; i++)
+                    if (node == targetNode) return [targetNode];
+                return [];
+            }
+            return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
+        },
+
+        className: function(nodes, root, className, combinator)
+        {
+            if (nodes && combinator) nodes = this[combinator](nodes);
+            return Selector.handlers.byClassName(nodes, root, className);
+        },
+
+        byClassName: function(nodes, root, className)
+        {
+            if (!nodes) nodes = Selector.handlers.descendant([root]);
+            var needle = ' ' + className + ' ';
+            for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++)
+            {
+                nodeClassName = node.className;
+                if (nodeClassName.length == 0) continue;
+                if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
+                    results.push(node);
+            }
+            return results;
+        },
+
+        attrPresence: function(nodes, root, attr)
+        {
+            if (!nodes) nodes = root.getElementsByTagName("*");
+            var results = [];
+            for (var i = 0, node; node = nodes[i]; i++)
+                if (Element.hasAttribute(node, attr)) results.push(node);
+            return results;
+        },
+
+        attr: function(nodes, root, attr, value, operator)
+        {
+            if (!nodes) nodes = root.getElementsByTagName("*");
+            var handler = Selector.operators[operator], results = [];
+            for (var i = 0, node; node = nodes[i]; i++)
+            {
+                var nodeValue = Element.readAttribute(node, attr);
+                if (nodeValue === null) continue;
+                if (handler(nodeValue, value)) results.push(node);
+            }
+            return results;
+        },
+
+        pseudo: function(nodes, name, value, root, combinator)
+        {
+            if (nodes && combinator) nodes = this[combinator](nodes);
+            if (!nodes) nodes = root.getElementsByTagName("*");
+            return Selector.pseudos[name](nodes, value, root);
+        }
+    },
+
+    pseudos: {
+        'first-child': function(nodes, value, root)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+            {
+                if (Selector.handlers.previousElementSibling(node)) continue;
+                results.push(node);
+            }
+            return results;
+        },
+        'last-child': function(nodes, value, root)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+            {
+                if (Selector.handlers.nextElementSibling(node)) continue;
+                results.push(node);
+            }
+            return results;
+        },
+        'only-child': function(nodes, value, root)
+        {
+            var h = Selector.handlers;
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
+                    results.push(node);
+            return results;
+        },
+        'nth-child':        function(nodes, formula, root)
+        {
+            return Selector.pseudos.nth(nodes, formula, root);
+        },
+        'nth-last-child':   function(nodes, formula, root)
+        {
+            return Selector.pseudos.nth(nodes, formula, root, true);
+        },
+        'nth-of-type':      function(nodes, formula, root)
+        {
+            return Selector.pseudos.nth(nodes, formula, root, false, true);
+        },
+        'nth-last-of-type': function(nodes, formula, root)
+        {
+            return Selector.pseudos.nth(nodes, formula, root, true, true);
+        },
+        'first-of-type':    function(nodes, formula, root)
+        {
+            return Selector.pseudos.nth(nodes, "1", root, false, true);
+        },
+        'last-of-type':     function(nodes, formula, root)
+        {
+            return Selector.pseudos.nth(nodes, "1", root, true, true);
+        },
+        'only-of-type':     function(nodes, formula, root)
+        {
+            var p = Selector.pseudos;
+            return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
+        },
+
+    // handles the an+b logic
+        getIndices: function(a, b, total)
+        {
+            if (a == 0) return b > 0 ? [b] : [];
+            return $R(1, total).inject([], function(memo, i)
+            {
+                if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
+                return memo;
+            });
+        },
+
+    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
+        nth: function(nodes, formula, root, reverse, ofType)
+        {
+            if (nodes.length == 0) return [];
+            if (formula == 'even') formula = '2n+0';
+            if (formula == 'odd')  formula = '2n+1';
+            var h = Selector.handlers, results = [], indexed = [], m;
+            h.mark(nodes);
+            for (var i = 0, node; node = nodes[i]; i++)
+            {
+                if (!node.parentNode._counted)
+                {
+                    h.index(node.parentNode, reverse, ofType);
+                    indexed.push(node.parentNode);
+                }
+            }
+            if (formula.match(/^\d+$/))
+            { // just a number
+                formula = Number(formula);
+                for (var i = 0, node; node = nodes[i]; i++)
+                    if (node.nodeIndex == formula) results.push(node);
+            }
+            else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/))
+            { // an+b
+                if (m[1] == "-") m[1] = -1;
+                var a = m[1] ? Number(m[1]) : 1;
+                var b = m[2] ? Number(m[2]) : 0;
+                var indices = Selector.pseudos.getIndices(a, b, nodes.length);
+                for (var i = 0, node, l = indices.length; node = nodes[i]; i++)
+                {
+                    for (var j = 0; j < l; j++)
+                        if (node.nodeIndex == indices[j]) results.push(node);
+                }
+            }
+            h.unmark(nodes);
+            h.unmark(indexed);
+            return results;
+        },
+
+        'empty': function(nodes, value, root)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+            {
+                // IE treats comments as element nodes
+                if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
+                results.push(node);
+            }
+            return results;
+        },
+
+        'not': function(nodes, selector, root)
+        {
+            var h = Selector.handlers, selectorType, m;
+            var exclusions = new Selector(selector).findElements(root);
+            h.mark(exclusions);
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                if (!node._counted) results.push(node);
+            h.unmark(exclusions);
+            return results;
+        },
+
+        'enabled': function(nodes, value, root)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                if (!node.disabled) results.push(node);
+            return results;
+        },
+
+        'disabled': function(nodes, value, root)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                if (node.disabled) results.push(node);
+            return results;
+        },
+
+        'checked': function(nodes, value, root)
+        {
+            for (var i = 0, results = [], node; node = nodes[i]; i++)
+                if (node.checked) results.push(node);
+            return results;
+        }
+    },
+
+    operators: {
+        '=':  function(nv, v)
+        {
+            return nv == v;
+        },
+        '!=': function(nv, v)
+        {
+            return nv != v;
+        },
+        '^=': function(nv, v)
+        {
+            return nv.startsWith(v);
+        },
+        '$=': function(nv, v)
+        {
+            return nv.endsWith(v);
+        },
+        '*=': function(nv, v)
+        {
+            return nv.include(v);
+        },
+        '~=': function(nv, v)
+        {
+            return (' ' + nv + ' ').include(' ' + v + ' ');
+        },
+        '|=': function(nv, v)
+        {
+            return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-');
+        }
+    },
+
+    matchElements: function(elements, expression)
+    {
+        var matches = new Selector(expression).findElements(), h = Selector.handlers;
+        h.mark(matches);
+        for (var i = 0, results = [], element; element = elements[i]; i++)
+            if (element._counted) results.push(element);
+        h.unmark(matches);
+        return results;
+    },
+
+    findElement: function(elements, expression, index)
+    {
+        if (Object.isNumber(expression))
+        {
+            index = expression;
+            expression = false;
+        }
+        return Selector.matchElements(elements, expression || '*')[index || 0];
+    },
+
+    findChildElements: function(element, expressions)
+    {
+        var exprs = expressions.join(','), expressions = [];
+        exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m)
+        {
+            expressions.push(m[1].strip());
+        });
+        var results = [], h = Selector.handlers;
+        for (var i = 0, l = expressions.length, selector; i < l; i++)
+        {
+            selector = new Selector(expressions[i].strip());
+            h.concat(results, selector.findElements(element));
+        }
+        return (l > 1) ? h.unique(results) : results;
+    }
+});
+
+function $$()
+{
+    return Selector.findChildElements(document, $A(arguments));
+}
+var Form = {
+    reset: function(form)
+    {
+        $(form).reset();
+        return form;
+    },
+
+    serializeElements: function(elements, options)
+    {
+        if (typeof options != 'object') options = { hash: !!options };
+        else if (options.hash === undefined) options.hash = true;
+        var key, value, submitted = false, submit = options.submit;
+
+        var data = elements.inject({ }, function(result, element)
+        {
+            if (!element.disabled && element.name)
+            {
+                key = element.name;
+                value = $(element).getValue();
+                if (value != null && (element.type != 'submit' || (!submitted &&
+                                                                   submit !== false && (!submit || key == submit) && (submitted = true))))
+                {
+                    if (key in result)
+                    {
+                        // a key is already present; construct an array of values
+                        if (!Object.isArray(result[key])) result[key] = [result[key]];
+                        result[key].push(value);
+                    }
+                    else result[key] = value;
+                }
+            }
+            return result;
+        });
+
+        return options.hash ? data : Object.toQueryString(data);
+    }
+};
+
+Form.Methods = {
+    serialize: function(form, options)
+    {
+        return Form.serializeElements(Form.getElements(form), options);
+    },
+
+    getElements: function(form)
+    {
+        return $A($(form).getElementsByTagName('*')).inject([],
+                function(elements, child)
+                {
+                    if (Form.Element.Serializers[child.tagName.toLowerCase()])
+                        elements.push(Element.extend(child));
+                    return elements;
+                }
+                );
+    },
+
+    getInputs: function(form, typeName, name)
+    {
+        form = $(form);
+        var inputs = form.getElementsByTagName('input');
+
+        if (!typeName && !name) return $A(inputs).map(Element.extend);
+
+        for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++)
+        {
+            var input = inputs[i];
+            if ((typeName && input.type != typeName) || (name && input.name != name))
+                continue;
+            matchingInputs.push(Element.extend(input));
+        }
+
+        return matchingInputs;
+    },
+
+    disable: function(form)
+    {
+        form = $(form);
+        Form.getElements(form).invoke('disable');
+        return form;
+    },
+
+    enable: function(form)
+    {
+        form = $(form);
+        Form.getElements(form).invoke('enable');
+        return form;
+    },
+
+    findFirstElement: function(form)
+    {
+        var elements = $(form).getElements().findAll(function(element)
+        {
+            return 'hidden' != element.type && !element.disabled;
+        });
+        var firstByIndex = elements.findAll(function(element)
+        {
+            return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
+        }).sortBy(function(element)
+        {
+            return element.tabIndex
+        }).first();
+
+        return firstByIndex ? firstByIndex : elements.find(function(element)
+        {
+            return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
+        });
+    },
+
+    focusFirstElement: function(form)
+    {
+        form = $(form);
+        form.findFirstElement().activate();
+        return form;
+    },
+
+    request: function(form, options)
+    {
+        form = $(form),options = Object.clone(options || { });
+
+        var params = options.parameters, action = form.readAttribute('action') || '';
+        if (action.blank()) action = window.location.href;
+        options.parameters = form.serialize(true);
+
+        if (params)
+        {
+            if (Object.isString(params)) params = params.toQueryParams();
+            Object.extend(options.parameters, params);
+        }
+
+        if (form.hasAttribute('method') && !options.method)
+            options.method = form.method;
+
+        return new Ajax.Request(action, options);
+    }
+};
+
+/*--------------------------------------------------------------------------*/
+
+Form.Element = {
+    focus: function(element)
+    {
+        $(element).focus();
+        return element;
+    },
+
+    select: function(element)
+    {
+        $(element).select();
+        return element;
+    }
+};
+
+Form.Element.Methods = {
+    serialize: function(element)
+    {
+        element = $(element);
+        if (!element.disabled && element.name)
+        {
+            var value = element.getValue();
+            if (value != undefined)
+            {
+                var pair = { };
+                pair[element.name] = value;
+                return Object.toQueryString(pair);
+            }
+        }
+        return '';
+    },
+
+    getValue: function(element)
+    {
+        element = $(element);
+        var method = element.tagName.toLowerCase();
+        return Form.Element.Serializers[method](element);
+    },
+
+    setValue: function(element, value)
+    {
+        element = $(element);
+        var method = element.tagName.toLowerCase();
+        Form.Element.Serializers[method](element, value);
+        return element;
+    },
+
+    clear: function(element)
+    {
+        $(element).value = '';
+        return element;
+    },
+
+    present: function(element)
+    {
+        return $(element).value != '';
+    },
+
+    activate: function(element)
+    {
+        element = $(element);
+        try
+        {
+            element.focus();
+            if (element.select && (element.tagName.toLowerCase() != 'input' ||
+                                   !['button', 'reset', 'submit'].include(element.type)))
+                element.select();
+        }
+        catch (e)
+        {
+        }
+        return element;
+    },
+
+    disable: function(element)
+    {
+        element = $(element);
+        element.blur();
+        element.disabled = true;
+        return element;
+    },
+
+    enable: function(element)
+    {
+        element = $(element);
+        element.disabled = false;
+        return element;
+    }
+};
+
+/*--------------------------------------------------------------------------*/
+
+var Field = Form.Element;
+var $F = Form.Element.Methods.getValue;
+
+/*--------------------------------------------------------------------------*/
+
+Form.Element.Serializers = {
+    input: function(element, value)
+    {
+        switch (element.type.toLowerCase())
+                {
+            case 'checkbox':
+            case 'radio':
+                return Form.Element.Serializers.inputSelector(element, value);
+            default:
+                return Form.Element.Serializers.textarea(element, value);
+        }
+    },
+
+    inputSelector: function(element, value)
+    {
+        if (value === undefined) return element.checked ? element.value : null;
+        else element.checked = !!value;
+    },
+
+    textarea: function(element, value)
+    {
+        if (value === undefined) return element.value;
+        else element.value = value;
+    },
+
+    select: function(element, index)
+    {
+        if (index === undefined)
+            return this[element.type == 'select-one' ?
+                        'selectOne' : 'selectMany'](element);
+        else
+        {
+            var opt, value, single = !Object.isArray(index);
+            for (var i = 0, length = element.length; i < length; i++)
+            {
+                opt = element.options[i];
+                value = this.optionValue(opt);
+                if (single)
+                {
+                    if (value == index)
+                    {
+                        opt.selected = true;
+                        return;
+                    }
+                }
+                else opt.selected = index.include(value);
+            }
+        }
+    },
+
+    selectOne: function(element)
+    {
+        var index = element.selectedIndex;
+        return index >= 0 ? this.optionValue(element.options[index]) : null;
+    },
+
+    selectMany: function(element)
+    {
+        var values, length = element.length;
+        if (!length) return null;
+
+        for (var i = 0, values = []; i < length; i++)
+        {
+            var opt = element.options[i];
+            if (opt.selected) values.push(this.optionValue(opt));
+        }
+        return values;
+    },
+
+    optionValue: function(opt)
+    {
+        // extend element because hasAttribute may not be native
+        return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
+    }
+};
+
+/*--------------------------------------------------------------------------*/
+
+Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
+    initialize: function($super, element, frequency, callback)
+    {
+        $super(callback, frequency);
+        this.element = $(element);
+        this.lastValue = this.getValue();
+    },
+
+    execute: function()
+    {
+        var value = this.getValue();
+        if (Object.isString(this.lastValue) && Object.isString(value) ?
+            this.lastValue != value : String(this.lastValue) != String(value))
+        {
+            this.callback(this.element, value);
+            this.lastValue = value;
+        }
+    }
+});
+
+Form.Element.Observer = Class.create(Abstract.TimedObserver, {
+    getValue: function()
+    {
+        return Form.Element.getValue(this.element);
+    }
+});
+
+Form.Observer = Class.create(Abstract.TimedObserver, {
+    getValue: function()
+    {
+        return Form.serialize(this.element);
+    }
+});
+
+/*--------------------------------------------------------------------------*/
+
+Abstract.EventObserver = Class.create({
+    initialize: function(element, callback)
+    {
+        this.element = $(element);
+        this.callback = callback;
+
+        this.lastValue = this.getValue();
+        if (this.element.tagName.toLowerCase() == 'form')
+            this.registerFormCallbacks();
+        else
+            this.registerCallback(this.element);
+    },
+
+    onElementEvent: function()
+    {
+        var value = this.getValue();
+        if (this.lastValue != value)
+        {
+            this.callback(this.element, value);
+            this.lastValue = value;
+        }
+    },
+
+    registerFormCallbacks: function()
+    {
+        Form.getElements(this.element).each(this.registerCallback, this);
+    },
+
+    registerCallback: function(element)
+    {
+        if (element.type)
+        {
+            switch (element.type.toLowerCase())
+                    {
+                case 'checkbox':
+                case 'radio':
+                    Event.observe(element, 'click', this.onElementEvent.bind(this));
+                    break;
+                default:
+                    Event.observe(element, 'change', this.onElementEvent.bind(this));
+                    break;
+            }
+        }
+    }
+});
+
+Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
+    getValue: function()
+    {
+        return Form.Element.getValue(this.element);
+    }
+});
+
+Form.EventObserver = Class.create(Abstract.EventObserver, {
+    getValue: function()
+    {
+        return Form.serialize(this.element);
+    }
+});
+if (!window.Event) var Event = { };
+
+Object.extend(Event, {
+    KEY_BACKSPACE: 8,
+    KEY_TAB:       9,
+    KEY_RETURN:   13,
+    KEY_ESC:      27,
+    KEY_LEFT:     37,
+    KEY_UP:       38,
+    KEY_RIGHT:    39,
+    KEY_DOWN:     40,
+    KEY_DELETE:   46,
+    KEY_HOME:     36,
+    KEY_END:      35,
+    KEY_PAGEUP:   33,
+    KEY_PAGEDOWN: 34,
+    KEY_INSERT:   45,
+
+    cache: { },
+
+    relatedTarget: function(event)
+    {
+        var element;
+        switch (event.type)
+                {
+            case 'mouseover': element = event.fromElement; break;
+            case 'mouseout':  element = event.toElement;   break;
+            default: return null;
+        }
+        return Element.extend(element);
+    }
+});
+
+Event.Methods = (function()
+{
+    var isButton;
+
+    if (Prototype.Browser.IE)
+    {
+        var buttonMap = { 0: 1, 1: 4, 2: 2 };
+        isButton = function(event, code)
+        {
+            return event.button == buttonMap[code];
+        };
+
+    }
+    else if (Prototype.Browser.WebKit)
+    {
+        isButton = function(event, code)
+        {
+            switch (code)
+                    {
+                case 0: return event.which == 1 && !event.metaKey;
+                case 1: return event.which == 1 && event.metaKey;
+                default: return false;
+            }
+        };
+
+    }
+    else
+    {
+        isButton = function(event, code)
+        {
+            return event.which ? (event.which === code + 1) : (event.button === code);
+        };
+    }
+
+    return {
+        isLeftClick:   function(event)
+        {
+            return isButton(event, 0)
+        },
+        isMiddleClick: function(event)
+        {
+            return isButton(event, 1)
+        },
+        isRightClick:  function(event)
+        {
+            return isButton(event, 2)
+        },
+
+        element: function(event)
+        {
+            var node = Event.extend(event).target;
+            return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
+        },
+
+        findElement: function(event, expression)
+        {
+            var element = Event.element(event);
+            return element.match(expression) ? element : element.up(expression);
+        },
+
+        pointer: function(event)
+        {
+            return {
+                x: event.pageX || (event.clientX +
+                                   (document.documentElement.scrollLeft || document.body.scrollLeft)),
+                y: event.pageY || (event.clientY +
+                                   (document.documentElement.scrollTop || document.body.scrollTop))
+            };
+        },
+
+        pointerX: function(event)
+        {
+            return Event.pointer(event).x
+        },
+        pointerY: function(event)
+        {
+            return Event.pointer(event).y
+        },
+
+        stop: function(event)
+        {
+            Event.extend(event);
+            event.preventDefault();
+            event.stopPropagation();
+            event.stopped = true;
+        }
+    };
+})();
+
+Event.extend = (function()
+{
+    var methods = Object.keys(Event.Methods).inject({ }, function(m, name)
+    {
+        m[name] = Event.Methods[name].methodize();
+        return m;
+    });
+
+    if (Prototype.Browser.IE)
+    {
+        Object.extend(methods, {
+            stopPropagation: function()
+            {
+                this.cancelBubble = true
+            },
+            preventDefault:  function()
+            {
+                this.returnValue = false
+            },
+            inspect: function()
+            {
+                return "[object Event]"
+            }
+        });
+
+        return function(event)
+        {
+            if (!event) return false;
+            if (event._extendedByPrototype) return event;
+
+            event._extendedByPrototype = Prototype.emptyFunction;
+            var pointer = Event.pointer(event);
+            Object.extend(event, {
+                target: event.srcElement,
+                relatedTarget: Event.relatedTarget(event),
+                pageX:  pointer.x,
+                pageY:  pointer.y
+            });
+            return Object.extend(event, methods);
+        };
+
+    }
+    else
+    {
+        Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
+        Object.extend(Event.prototype, methods);
+        return Prototype.K;
+    }
+})();
+
+Object.extend(Event, (function()
+{
+    var cache = Event.cache;
+
+    function getEventID(element)
+    {
+        if (element._eventID) return element._eventID;
+        arguments.callee.id = arguments.callee.id || 1;
+        return element._eventID = ++arguments.callee.id;
+    }
+
+    function getDOMEventName(eventName)
+    {
+        if (eventName && eventName.include(':')) return "dataavailable";
+        return eventName;
+    }
+
+    function getCacheForID(id)
+    {
+        return cache[id] = cache[id] || { };
+    }
+
+    function getWrappersForEventName(id, eventName)
+    {
+        var c = getCacheForID(id);
+        return c[eventName] = c[eventName] || [];
+    }
+
+    function createWrapper(element, eventName, handler)
+    {
+        var id = getEventID(element);
+        var c = getWrappersForEventName(id, eventName);
+        if (c.pluck("handler").include(handler)) return false;
+
+        var wrapper = function(event)
+        {
+            if (!Event || !Event.extend ||
+                (event.eventName && event.eventName != eventName))
+                return false;
+
+            Event.extend(event);
+            handler.call(element, event)
+        };
+
+        wrapper.handler = handler;
+        c.push(wrapper);
+        return wrapper;
+    }
+
+    function findWrapper(id, eventName, handler)
+    {
+        var c = getWrappersForEventName(id, eventName);
+        return c.find(function(wrapper)
+        {
+            return wrapper.handler == handler
+        });
+    }
+
+    function destroyWrapper(id, eventName, handler)
+    {
+        var c = getCacheForID(id);
+        if (!c[eventName]) return false;
+        c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
+    }
+
+    function destroyCache()
+    {
+        for (var id in cache)
+            for (var eventName in cache[id])
+                cache[id][eventName] = null;
+    }
+
+    if (window.attachEvent)
+    {
+        window.attachEvent("onunload", destroyCache);
+    }
+
+    return {
+        observe: function(element, eventName, handler)
+        {
+            element = $(element);
+            var name = getDOMEventName(eventName);
+
+            var wrapper = createWrapper(element, eventName, handler);
+            if (!wrapper) return element;
+
+            if (element.addEventListener)
+            {
+                element.addEventListener(name, wrapper, false);
+            }
+            else
+            {
+                element.attachEvent("on" + name, wrapper);
+            }
+
+            return element;
+        },
+
+        stopObserving: function(element, eventName, handler)
+        {
+            element = $(element);
+            var id = getEventID(element), name = getDOMEventName(eventName);
+
+            if (!handler && eventName)
+            {
+                getWrappersForEventName(id, eventName).each(function(wrapper)
+                {
+                    element.stopObserving(eventName, wrapper.handler);
+                });
+                return element;
+
+            }
+            else if (!eventName)
+            {
+                Object.keys(getCacheForID(id)).each(function(eventName)
+                {
+                    element.stopObserving(eventName);
+                });
+                return element;
+            }
+
+            var wrapper = findWrapper(id, eventName, handler);
+            if (!wrapper) return element;
+
+            if (element.removeEventListener)
+            {
+                element.removeEventListener(name, wrapper, false);
+            }
+            else
+            {
+                element.detachEvent("on" + name, wrapper);
+            }
+
+            destroyWrapper(id, eventName, handler);
+
+            return element;
+        },
+
+        fire: function(element, eventName, memo)
+        {
+            element = $(element);
+            if (element == document && document.createEvent && !element.dispatchEvent)
+                element = document.documentElement;
+
+            if (document.createEvent)
+            {
+                var event = document.createEvent("HTMLEvents");
+                event.initEvent("dataavailable", true, true);
+            }
+            else
+            {
+                var event = document.createEventObject();
+                event.eventType = "ondataavailable";
+            }
+
+            event.eventName = eventName;
+            event.memo = memo || { };
+
+            if (document.createEvent)
+            {
+                element.dispatchEvent(event);
+            }
+            else
+            {
+                element.fireEvent(event.eventType, event);
+            }
+
+            return event;
+        }
+    };
+})());
+
+Object.extend(Event, Event.Methods);
+
+Element.addMethods({
+    fire:          Event.fire,
+    observe:       Event.observe,
+    stopObserving: Event.stopObserving
+});
+
+Object.extend(document, {
+    fire:          Element.Methods.fire.methodize(),
+    observe:       Element.Methods.observe.methodize(),
+    stopObserving: Element.Methods.stopObserving.methodize()
+});
+
+(function()
+{
+    /* Support for the DOMContentLoaded event is based on work by Dan Webb,
+Matthias Miller, Dean Edwards and John Resig. */
+
+    var timer, fired = false;
+
+    function fireContentLoadedEvent()
+    {
+        if (fired) return;
+        if (timer) window.clearInterval(timer);
+        document.fire("dom:loaded");
+        fired = true;
+    }
+
+    if (document.addEventListener)
+    {
+        if (Prototype.Browser.WebKit)
+        {
+            timer = window.setInterval(function()
+            {
+                if (/loaded|complete/.test(document.readyState))
+                    fireContentLoadedEvent();
+            }, 0);
+
+            Event.observe(window, "load", fireContentLoadedEvent);
+
+        }
+        else
+        {
+            document.addEventListener("DOMContentLoaded",
+                    fireContentLoadedEvent, false);
+        }
+
+    }
+    else
+    {
+        document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
+        $("__onDOMContentLoaded").onreadystatechange = function()
+        {
+            if (this.readyState == "complete")
+            {
+                this.onreadystatechange = null;
+                fireContentLoadedEvent();
+            }
+        };
+    }
+})();
+/*------------------------------- DEPRECATED -------------------------------*/
+
+Hash.toQueryString = Object.toQueryString;
+
+var Toggle = { display: Element.toggle };
+
+Element.Methods.childOf = Element.Methods.descendantOf;
+
+var Insertion = {
+    Before: function(element, content)
+    {
+        return Element.insert(element, {before:content});
+    },
+
+    Top: function(element, content)
+    {
+        return Element.insert(element, {top:content});
+    },
+
+    Bottom: function(element, content)
+    {
+        return Element.insert(element, {bottom:content});
+    },
+
+    After: function(element, content)
+    {
+        return Element.insert(element, {after:content});
+    }
+};
+
+var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
+
+// This should be moved to script.aculo.us; notice the deprecated methods
+// further below, that map to the newer Element methods.
+var Position = {
+// set to true if needed, warning: firefox performance problems
+// NOT neeeded for page scrolling, only if draggable contained in
+// scrollable elements
+    includeScrollOffsets: false,
+
+// must be called before calling withinIncludingScrolloffset, every time the
+// page is scrolled
+    prepare: function()
+    {
+        this.deltaX = window.pageXOffset
+                || document.documentElement.scrollLeft
+                || document.body.scrollLeft
+                || 0;
+        this.deltaY = window.pageYOffset
+                || document.documentElement.scrollTop
+                || document.body.scrollTop
+                || 0;
+    },
+
+// caches x/y coordinate pair to use with overlap
+    within: function(element, x, y)
+    {
+        if (this.includeScrollOffsets)
+            return this.withinIncludingScrolloffsets(element, x, y);
+        this.xcomp = x;
+        this.ycomp = y;
+        this.offset = Element.cumulativeOffset(element);
+
+        return (y >= this.offset[1] &&
+                y < this.offset[1] + element.offsetHeight &&
+                x >= this.offset[0] &&
+                x < this.offset[0] + element.offsetWidth);
+    },
+
+    withinIncludingScrolloffsets: function(element, x, y)
+    {
+        var offsetcache = Element.cumulativeScrollOffset(element);
+
+        this.xcomp = x + offsetcache[0] - this.deltaX;
+        this.ycomp = y + offsetcache[1] - this.deltaY;
+        this.offset = Element.cumulativeOffset(element);
+
+        return (this.ycomp >= this.offset[1] &&
+                this.ycomp < this.offset[1] + element.offsetHeight &&
+                this.xcomp >= this.offset[0] &&
+                this.xcomp < this.offset[0] + element.offsetWidth);
+    },
+
+// within must be called directly before
+    overlap: function(mode, element)
+    {
+        if (!mode) return 0;
+        if (mode == 'vertical')
+            return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
+                   element.offsetHeight;
+        if (mode == 'horizontal')
+            return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
+                   element.offsetWidth;
+    },
+
+// Deprecation layer -- use newer Element methods now (1.5.2).
+
+    cumulativeOffset: Element.Methods.cumulativeOffset,
+
+    positionedOffset: Element.Methods.positionedOffset,
+
+    absolutize: function(element)
+    {
+        Position.prepare();
+        return Element.absolutize(element);
+    },
+
+    relativize: function(element)
+    {
+        Position.prepare();
+        return Element.relativize(element);
+    },
+
+    realOffset: Element.Methods.cumulativeScrollOffset,
+
+    offsetParent: Element.Methods.getOffsetParent,
+
+    page: Element.Methods.viewportOffset,
+
+    clone: function(source, target, options)
+    {
+        options = options || { };
+        return Element.clonePosition(target, source, options);
+    }
+};
+
+/*--------------------------------------------------------------------------*/
+
+if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods)
+{
+    function iter(name)
+    {
+        return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
+    }
+
+    instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
+                                             function(element, className)
+                                             {
+                                                 className = className.toString().strip();
+                                                 var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
+                                                 return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
+                                             } : function(element, className)
+    {
+        className = className.toString().strip();
+        var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
+        if (!classNames && !className) return elements;
+
+        var nodes = $(element).getElementsByTagName('*');
+        className = ' ' + className + ' ';
+
+        for (var i = 0, child, cn; child = nodes[i]; i++)
+        {
+            if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
+                                                                          (classNames && classNames.all(function(name)
+                                                                          {
+                                                                              return !name.toString().blank() && cn.include(' ' + name + ' ');
+                                                                          }))))
+                elements.push(Element.extend(child));
+        }
+        return elements;
+    };
+
+    return function(className, parentElement)
+    {
+        return $(parentElement || document.body).getElementsByClassName(className);
+    };
+}(Element.Methods);
+
+/*--------------------------------------------------------------------------*/
+
+Element.ClassNames = Class.create();
+Element.ClassNames.prototype = {
+    initialize: function(element)
+    {
+        this.element = $(element);
+    },
+
+    _each: function(iterator)
+    {
+        this.element.className.split(/\s+/).select(function(name)
+        {
+            return name.length > 0;
+        })._each(iterator);
+    },
+
+    set: function(className)
+    {
+        this.element.className = className;
+    },
+
+    add: function(classNameToAdd)
+    {
+        if (this.include(classNameToAdd)) return;
+        this.set($A(this).concat(classNameToAdd).join(' '));
+    },
+
+    remove: function(classNameToRemove)
+    {
+        if (!this.include(classNameToRemove)) return;
+        this.set($A(this).without(classNameToRemove).join(' '));
+    },
+
+    toString: function()
+    {
+        return $A(this).join(' ');
+    }
+};
+
+Object.extend(Element.ClassNames.prototype, Enumerable);
+
+/*--------------------------------------------------------------------------*/
+
+Element.addMethods();
\ No newline at end of file

    

[Simexplorer-si-commits] r742 - in trunk/simexplorer-is-web/src/resources: . org org/apache org/apache/tapestry org/apache/tapestry/scriptaculous_1_8

glandais＠users.labs.libre-entreprise.org