var Prototype = {
    Version: '1.6.0.2',
    Browser: {
        IE: !! (window.attachEvent && !window.opera),
        Opera: !! window.opera,
        WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
        Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
        MobileSafari: !! navigator.userAgent.match(/Apple.*Mobile.*Safari/)
    },
    BrowserFeatures: {
        XPath: !! document.evaluate,
        ElementExtensions: !! window.HTMLElement,
        SpecificElementExtensions: document.createElement('div').__proto__ && document.createElement('div').__proto__ !== document.createElement('form').__proto__
    },
    ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
    JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
    emptyFunction: function() {},
    K: function(x) {
        return x
    }
};
if (Prototype.Browser.MobileSafari) Prototype.BrowserFeatures.SpecificElementExtensions = false;
var Class = {
    create: function() {
        var parent = null,
            properties = $A(arguments);
        if (Object.isFunction(properties[0])) parent = properties.shift();

        function klass() {
            this.initialize.apply(this, arguments);
        }
        Object.extend(klass, Class.Methods);
        klass.superclass = parent;
        klass.subclasses = [];
        if (parent) {
            var subclass = function() {};
            subclass.prototype = parent.prototype;
            klass.prototype = new subclass;
            parent.subclasses.push(klass);
        }
        for (var i = 0; i < properties.length; i++)
        klass.addMethods(properties[i]);
        if (!klass.prototype.initialize) klass.prototype.initialize = Prototype.emptyFunction;
        klass.prototype.constructor = klass;
        return klass;
    }
};
Class.Methods = {
    addMethods: function(source) {
        var ancestor = this.superclass && this.superclass.prototype;
        var properties = Object.keys(source);
        if (!Object.keys({
            toString: true
        }).length) properties.push("toString", "valueOf");
        for (var i = 0, length = properties.length; i < length; i++) {
            var property = properties[i],
                value = source[property];
            if (ancestor && Object.isFunction(value) && value.argumentNames().first() == "$super") {
                var method = value,
                    value = Object.extend((function(m) {
                        return function() {
                            return ancestor[m].apply(this, arguments)
                        };
                    })(property).wrap(method), {
                        valueOf: function() {
                            return method
                        },
                        toString: function() {
                            return method.toString()
                        }
                    });
            }
            this.prototype[property] = value;
        }
        return this;
    }
};
var Abstract = {};
Object.extend = function(destination, source) {
    for (var property in source)
    destination[property] = source[property];
    return destination;
};
Object.extend(Object, {
    inspect: function(object) {
        try {
            if (Object.isUndefined(object)) return 'undefined';
            if (object === null) return 'null';
            return object.inspect ? object.inspect() : String(object);
        } catch (e) {
            if (e instanceof RangeError) return '...';
            throw e;
        }
    },
    toJSON: function(object) {
        var type = typeof object;
        switch (type) {
        case 'undefined':
        case 'function':
        case 'unknown':
            return;
        case 'boolean':
            return object.toString();
        }
        if (object === null) return 'null';
        if (object.toJSON) return object.toJSON();
        if (Object.isElement(object)) return;
        var results = [];
        for (var property in object) {
            var value = Object.toJSON(object[property]);
            if (!Object.isUndefined(value)) results.push(property.toJSON() + ': ' + value);
        }
        return '{' + results.join(', ') + '}';
    },
    toQueryString: function(object) {
        return $H(object).toQueryString();
    },
    toHTML: function(object) {
        return object && object.toHTML ? object.toHTML() : String.interpret(object);
    },
    keys: function(object) {
        var keys = [];
        for (var property in object)
        keys.push(property);
        return keys;
    },
    values: function(object) {
        var values = [];
        for (var property in object)
        values.push(object[property]);
        return values;
    },
    clone: function(object) {
        return Object.extend({}, object);
    },
    isElement: function(object) {
        return object && object.nodeType == 1;
    },
    isArray: function(object) {
        return object != null && typeof object == "object" && 'splice' in object && 'join' in object;
    },
    isHash: function(object) {
        return object instanceof Hash;
    },
    isFunction: function(object) {
        return typeof object == "function";
    },
    isString: function(object) {
        return typeof object == "string";
    },
    isNumber: function(object) {
        return typeof object == "number";
    },
    isUndefined: function(object) {
        return typeof object == "undefined";
    }
});
Object.extend(Function.prototype, {
    argumentNames: function() {
        var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
        return names.length == 1 && !names[0] ? [] : names;
    },
    bind: function() {
        if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
        var __method = this,
            args = $A(arguments),
            object = args.shift();
        return function() {
            return __method.apply(object, args.concat($A(arguments)));
        }
    },
    bindAsEventListener: function() {
        var __method = this,
            args = $A(arguments),
            object = args.shift();
        return function(event) {
            return __method.apply(object, [event || window.event].concat(args));
        }
    },
    curry: function() {
        if (!arguments.length) return this;
        var __method = this,
            args = $A(arguments);
        return function() {
            return __method.apply(this, args.concat($A(arguments)));
        }
    },
    delay: function() {
        var __method = this,
            args = $A(arguments),
            timeout = args.shift() * 1000;
        return window.setTimeout(function() {
            return __method.apply(__method, args);
        }, timeout);
    },
    wrap: function(wrapper) {
        var __method = this;
        return function() {
            return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
        }
    },
    methodize: function() {
        if (this._methodized) return this._methodized;
        var __method = this;
        return this._methodized = function() {
            return __method.apply(null, [this].concat($A(arguments)));
        };
    }
});
Function.prototype.defer = Function.prototype.delay.curry(0.01);
Date.prototype.toJSON = function() {
    return '"' + this.getUTCFullYear() + '-' + (this.getUTCMonth() + 1).toPaddedString(2) + '-' + this.getUTCDate().toPaddedString(2) + 'T' + this.getUTCHours().toPaddedString(2) + ':' + this.getUTCMinutes().toPaddedString(2) + ':' + this.getUTCSeconds().toPaddedString(2) + 'Z"';
};
var Try = {
    these: function() {
        var returnValue;
        for (var i = 0, length = arguments.length; i < length; i++) {
            var lambda = arguments[i];
            try {
                returnValue = lambda();
                break;
            } catch (e) {}
        }
        return returnValue;
    }
};
RegExp.prototype.match = RegExp.prototype.test;
RegExp.escape = function(str) {
    return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
var PeriodicalExecuter = Class.create({
    initialize: function(callback, frequency) {
        this.callback = callback;
        this.frequency = frequency;
        this.currentlyExecuting = false;
        this.registerCallback();
    },
    registerCallback: function() {
        this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
    },
    execute: function() {
        this.callback(this);
    },
    stop: function() {
        if (!this.timer) return;
        clearInterval(this.timer);
        this.timer = null;
    },
    onTimerEvent: function() {
        if (!this.currentlyExecuting) {
            try {
                this.currentlyExecuting = true;
                this.execute();
            } finally {
                this.currentlyExecuting = false;
            }
        }
    }
});
Object.extend(String, {
    interpret: function(value) {
        return value == null ? '' : String(value);
    },
    specialChar: {
        '\b': '\\b',
        '\t': '\\t',
        '\n': '\\n',
        '\f': '\\f',
        '\r': '\\r',
        '\\': '\\\\'
    }
});
Object.extend(String.prototype, {
    gsub: function(pattern, replacement) {
        var result = '',
            source = this,
            match;
        replacement = arguments.callee.prepareReplacement(replacement);
        while (source.length > 0) {
            if (match = source.match(pattern)) {
                result += source.slice(0, match.index);
                result += String.interpret(replacement(match));
                source = source.slice(match.index + match[0].length);
            } else {
                result += source, source = '';
            }
        }
        return result;
    },
    sub: function(pattern, replacement, count) {
        replacement = this.gsub.prepareReplacement(replacement);
        count = Object.isUndefined(count) ? 1 : count;
        return this.gsub(pattern, function(match) {
            if (--count < 0) return match[0];
            return replacement(match);
        });
    },
    scan: function(pattern, iterator) {
        this.gsub(pattern, iterator);
        return String(this);
    },
    truncate: function(length, truncation) {
        length = length || 30;
        truncation = Object.isUndefined(truncation) ? '...' : truncation;
        return this.length > length ? this.slice(0, length - truncation.length) + truncation : String(this);
    },
    strip: function() {
        return this.replace(/^\s+/, '').replace(/\s+$/, '');
    },
    stripTags: function() {
        return this.replace(/<\/?[^>]+>/gi, '');
    },
    stripScripts: function() {
        return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
    },
    extractScripts: function() {
        var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
        var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
        return (this.match(matchAll) || []).map(function(scriptTag) {
            return (scriptTag.match(matchOne) || ['', ''])[1];
        });
    },
    evalScripts: function() {
        return this.extractScripts().map(function(script) {
            return eval(script)
        });
    },
    escapeHTML: function() {
        var self = arguments.callee;
        self.text.data = this;
        return self.div.innerHTML;
    },
    unescapeHTML: function() {
        var div = new Element('div');
        div.innerHTML = this.stripTags();
        return div.childNodes[0] ? (div.childNodes.length > 1 ? $A(div.childNodes).inject('', function(memo, node) {
            return memo + node.nodeValue
        }) : div.childNodes[0].nodeValue) : '';
    },
    toQueryParams: function(separator) {
        var match = this.strip().match(/([^?#]*)(#.*)?$/);
        if (!match) return {};
        return match[1].split(separator || '&').inject({}, function(hash, pair) {
            if ((pair = pair.split('='))[0]) {
                var key = decodeURIComponent(pair.shift());
                var value = pair.length > 1 ? pair.join('=') : pair[0];
                if (value != undefined) value = decodeURIComponent(value);
                if (key in hash) {
                    if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
                    hash[key].push(value);
                }
                else hash[key] = value;
            }
            return hash;
        });
    },
    toArray: function() {
        return this.split('');
    },
    succ: function() {
        return this.slice(0, this.length - 1) + String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
    },
    times: function(count) {
        return count < 1 ? '' : new Array(count + 1).join(this);
    },
    camelize: function() {
        var parts = this.split('-'),
            len = parts.length;
        if (len == 1) return parts[0];
        var camelized = this.charAt(0) == '-' ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1) : parts[0];
        for (var i = 1; i < len; i++)
        camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
        return camelized;
    },
    capitalize: function() {
        return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
    },
    underscore: function() {
        return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/, '#{1}_#{2}').gsub(/([a-z\d])([A-Z])/, '#{1}_#{2}').gsub(/-/, '_').toLowerCase();
    },
    dasherize: function() {
        return this.gsub(/_/, '-');
    },
    inspect: function(useDoubleQuotes) {
        var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
            var character = String.specialChar[match[0]];
            return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
        });
        if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
        return "'" + escapedString.replace(/'/g, '\\\'') + "'";
    },
    toJSON: function() {
        return this.inspect(true);
    },
    unfilterJSON: function(filter) {
        return this.sub(filter || Prototype.JSONFilter, '#{1}');
    },
    isJSON: function() {
        var str = this;
        if (str.blank()) return false;
        str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
        return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
    },
    evalJSON: function(sanitize) {
        var json = this.unfilterJSON();
        try {
            if (!sanitize || json.isJSON()) return eval('(' + json + ')');
        } catch (e) {}
        throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
    },
    include: function(pattern) {
        return this.indexOf(pattern) > -1;
    },
    startsWith: function(pattern) {
        return this.indexOf(pattern) === 0;
    },
    endsWith: function(pattern) {
        var d = this.length - pattern.length;
        return d >= 0 && this.lastIndexOf(pattern) === d;
    },
    empty: function() {
        return this == '';
    },
    blank: function() {
        return /^\s*$/.test(this);
    },
    interpolate: function(object, pattern) {
        return new Template(this, pattern).evaluate(object);
    }
});
if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
    escapeHTML: function() {
        return this.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
    },
    unescapeHTML: function() {
        return this.replace(/&amp;/g, '&').replace(/&lt;/g, '<').replace(/&gt;/g, '>');
    }
});
String.prototype.gsub.prepareReplacement = function(replacement) {
    if (Object.isFunction(replacement)) return replacement;
    var template = new Template(replacement);
    return function(match) {
        return template.evaluate(match)
    };
};
String.prototype.parseQuery = String.prototype.toQueryParams;
Object.extend(String.prototype.escapeHTML, {
    div: document.createElement('div'),
    text: document.createTextNode('')
});
with(String.prototype.escapeHTML) div.appendChild(text);
var Template = Class.create({
    initialize: function(template, pattern) {
        this.template = template.toString();
        this.pattern = pattern || Template.Pattern;
    },
    evaluate: function(object) {
        if (Object.isFunction(object.toTemplateReplacements)) object = object.toTemplateReplacements();
        return this.template.gsub(this.pattern, function(match) {
            if (object == null) return '';
            var before = match[1] || '';
            if (before == '\\') return match[2];
            var ctx = object,
                expr = match[3];
            var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
            match = pattern.exec(expr);
            if (match == null) return before;
            while (match != null) {
                var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
                ctx = ctx[comp];
                if (null == ctx || '' == match[3]) break;
                expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
                match = pattern.exec(expr);
            }
            return before + String.interpret(ctx);
        });
    }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
var $break = {};
var Enumerable = {
    each: function(iterator, context) {
        var index = 0;
        iterator = iterator.bind(context);
        try {
            this._each(function(value) {
                iterator(value, index++);
            });
        } catch (e) {
            if (e != $break) throw e;
        }
        return this;
    },
    eachSlice: function(number, iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var index = -number,
            slices = [],
            array = this.toArray();
        while ((index += number) < array.length)
        slices.push(array.slice(index, index + number));
        return slices.collect(iterator, context);
    },
    all: function(iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var result = true;
        this.each(function(value, index) {
            result = result && !! iterator(value, index);
            if (!result) throw $break;
        });
        return result;
    },
    any: function(iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var result = false;
        this.each(function(value, index) {
            if (result = !! iterator(value, index)) throw $break;
        });
        return result;
    },
    collect: function(iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var results = [];
        this.each(function(value, index) {
            results.push(iterator(value, index));
        });
        return results;
    },
    detect: function(iterator, context) {
        iterator = iterator.bind(context);
        var result;
        this.each(function(value, index) {
            if (iterator(value, index)) {
                result = value;
                throw $break;
            }
        });
        return result;
    },
    findAll: function(iterator, context) {
        iterator = iterator.bind(context);
        var results = [];
        this.each(function(value, index) {
            if (iterator(value, index)) results.push(value);
        });
        return results;
    },
    grep: function(filter, iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var results = [];
        if (Object.isString(filter)) filter = new RegExp(filter);
        this.each(function(value, index) {
            if (filter.match(value)) results.push(iterator(value, index));
        });
        return results;
    },
    include: function(object) {
        if (Object.isFunction(this.indexOf)) if (this.indexOf(object) != -1) return true;
        var found = false;
        this.each(function(value) {
            if (value == object) {
                found = true;
                throw $break;
            }
        });
        return found;
    },
    inGroupsOf: function(number, fillWith) {
        fillWith = Object.isUndefined(fillWith) ? null : fillWith;
        return this.eachSlice(number, function(slice) {
            while (slice.length < number) slice.push(fillWith);
            return slice;
        });
    },
    inject: function(memo, iterator, context) {
        iterator = iterator.bind(context);
        this.each(function(value, index) {
            memo = iterator(memo, value, index);
        });
        return memo;
    },
    invoke: function(method) {
        var args = $A(arguments).slice(1);
        return this.map(function(value) {
            return value[method].apply(value, args);
        });
    },
    max: function(iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var result;
        this.each(function(value, index) {
            value = iterator(value, index);
            if (result == null || value >= result) result = value;
        });
        return result;
    },
    min: function(iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var result;
        this.each(function(value, index) {
            value = iterator(value, index);
            if (result == null || value < result) result = value;
        });
        return result;
    },
    partition: function(iterator, context) {
        iterator = iterator ? iterator.bind(context) : Prototype.K;
        var trues = [],
            falses = [];
        this.each(function(value, index) {
            (iterator(value, index) ? trues : falses).push(value);
        });
        return [trues, falses];
    },
    pluck: function(property) {
        var results = [];
        this.each(function(value) {
            results.push(value[property]);
        });
        return results;
    },
    reject: function(iterator, context) {
        iterator = iterator.bind(context);
        var results = [];
        this.each(function(value, index) {
            if (!iterator(value, index)) results.push(value);
        });
        return results;
    },
    sortBy: function(iterator, context) {
        iterator = iterator.bind(context);
        return this.map(function(value, index) {
            return {
                value: value,
                criteria: iterator(value, index)
            };
        }).sort(function(left, right) {
            var a = left.criteria,
                b = right.criteria;
            return a < b ? -1 : a > b ? 1 : 0;
        }).pluck('value');
    },
    toArray: function() {
        return this.map();
    },
    zip: function() {
        var iterator = Prototype.K,
            args = $A(arguments);
        if (Object.isFunction(args.last())) iterator = args.pop();
        var collections = [this].concat(args).map($A);
        return this.map(function(value, index) {
            return iterator(collections.pluck(index));
        });
    },
    size: function() {
        return this.toArray().length;
    },
    inspect: function() {
        return '#<Enumerable:' + this.toArray().inspect() + '>';
    }
};
Object.extend(Enumerable, {
    map: Enumerable.collect,
    find: Enumerable.detect,
    select: Enumerable.findAll,
    filter: Enumerable.findAll,
    member: Enumerable.include,
    entries: Enumerable.toArray,
    every: Enumerable.all,
    some: Enumerable.any
});

function $A(iterable) {
    if (!iterable) return [];
    if (iterable.toArray) return iterable.toArray();
    var length = iterable.length || 0,
        results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
}
if (Prototype.Browser.WebKit) {
    $A = function(iterable) {
        if (!iterable) return [];
        if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') && iterable.toArray) return iterable.toArray();
        var length = iterable.length || 0,
            results = new Array(length);
        while (length--) results[length] = iterable[length];
        return results;
    };
}
Array.from = $A;
Object.extend(Array.prototype, Enumerable);
if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
Object.extend(Array.prototype, {
    _each: function(iterator) {
        for (var i = 0, length = this.length; i < length; i++)
        iterator(this[i]);
    },
    clear: function() {
        this.length = 0;
        return this;
    },
    first: function() {
        return this[0];
    },
    last: function() {
        return this[this.length - 1];
    },
    compact: function() {
        return this.select(function(value) {
            return value != null;
        });
    },
    flatten: function() {
        return this.inject([], function(array, value) {
            return array.concat(Object.isArray(value) ? value.flatten() : [value]);
        });
    },
    without: function() {
        var values = $A(arguments);
        return this.select(function(value) {
            return !values.include(value);
        });
    },
    reverse: function(inline) {
        return (inline !== false ? this : this.toArray())._reverse();
    },
    reduce: function() {
        return this.length > 1 ? this : this[0];
    },
    uniq: function(sorted) {
        return this.inject([], function(array, value, index) {
            if (0 == index || (sorted ? array.last() != value : !array.include(value))) array.push(value);
            return array;
        });
    },
    intersect: function(array) {
        return this.uniq().findAll(function(item) {
            return array.detect(function(value) {
                return item === value
            });
        });
    },
    clone: function() {
        return [].concat(this);
    },
    size: function() {
        return this.length;
    },
    inspect: function() {
        return '[' + this.map(Object.inspect).join(', ') + ']';
    },
    toJSON: function() {
        var results = [];
        this.each(function(object) {
            var value = Object.toJSON(object);
            if (!Object.isUndefined(value)) results.push(value);
        });
        return '[' + results.join(', ') + ']';
    }
});
if (Object.isFunction(Array.prototype.forEach)) Array.prototype._each = Array.prototype.forEach;
if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
    i || (i = 0);
    var length = this.length;
    if (i < 0) i = length + i;
    for (; i < length; i++)
    if (this[i] === item) return i;
    return -1;
};
if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
    var n = this.slice(0, i).reverse().indexOf(item);
    return (n < 0) ? n : i - n - 1;
};
Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
    if (!Object.isString(string)) return [];
    string = string.strip();
    return string ? string.split(/\s+/) : [];
}
if (Prototype.Browser.Opera) {
    Array.prototype.concat = function() {
        var array = [];
        for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
        for (var i = 0, length = arguments.length; i < length; i++) {
            if (Object.isArray(arguments[i])) {
                for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
                array.push(arguments[i][j]);
            } else {
                array.push(arguments[i]);
            }
        }
        return array;
    };
}
Object.extend(Number.prototype, {
    toColorPart: function() {
        return this.toPaddedString(2, 16);
    },
    succ: function() {
        return this + 1;
    },
    times: function(iterator) {
        $R(0, this, true).each(iterator);
        return this;
    },
    toPaddedString: function(length, radix) {
        var string = this.toString(radix || 10);
        return '0'.times(length - string.length) + string;
    },
    toJSON: function() {
        return isFinite(this) ? this.toString() : 'null';
    }
});
$w('abs round ceil floor').each(function(method) {
    Number.prototype[method] = Math[method].methodize();
});

function $H(object) {
    return new Hash(object);
};
var Hash = Class.create(Enumerable, (function() {
    function toQueryPair(key, value) {
        if (Object.isUndefined(value)) return key;
        return key + '=' + encodeURIComponent(String.interpret(value));
    }
    return {
        initialize: function(object) {
            this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
        },
        _each: function(iterator) {
            for (var key in this._object) {
                var value = this._object[key],
                    pair = [key, value];
                pair.key = key;
                pair.value = value;
                iterator(pair);
            }
        },
        set: function(key, value) {
            return this._object[key] = value;
        },
        get: function(key) {
            return this._object[key];
        },
        unset: function(key) {
            var value = this._object[key];
            delete this._object[key];
            return value;
        },
        toObject: function() {
            return Object.clone(this._object);
        },
        keys: function() {
            return this.pluck('key');
        },
        values: function() {
            return this.pluck('value');
        },
        index: function(value) {
            var match = this.detect(function(pair) {
                return pair.value === value;
            });
            return match && match.key;
        },
        merge: function(object) {
            return this.clone().update(object);
        },
        update: function(object) {
            return new Hash(object).inject(this, function(result, pair) {
                result.set(pair.key, pair.value);
                return result;
            });
        },
        toQueryString: function() {
            return this.map(function(pair) {
                var key = encodeURIComponent(pair.key),
                    values = pair.value;
                if (values && typeof values == 'object') {
                    if (Object.isArray(values)) return values.map(toQueryPair.curry(key)).join('&');
                }
                return toQueryPair(key, values);
            }).join('&');
        },
        inspect: function() {
            return '#<Hash:{' + this.map(function(pair) {
                return pair.map(Object.inspect).join(': ');
            }).join(', ') + '}>';
        },
        toJSON: function() {
            return Object.toJSON(this.toObject());
        },
        clone: function() {
            return new Hash(this);
        }
    }
})());
Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
    initialize: function(start, end, exclusive) {
        this.start = start;
        this.end = end;
        this.exclusive = exclusive;
    },
    _each: function(iterator) {
        var value = this.start;
        while (this.include(value)) {
            iterator(value);
            value = value.succ();
        }
    },
    include: function(value) {
        if (value < this.start) return false;
        if (this.exclusive) return value < this.end;
        return value <= this.end;
    }
});
var $R = function(start, end, exclusive) {
    return new ObjectRange(start, end, exclusive);
};
var Ajax = {
    getTransport: function() {
        return Try.these(function() {
            return new XMLHttpRequest()
        }, function() {
            return new ActiveXObject('Msxml2.XMLHTTP')
        }, function() {
            return new ActiveXObject('Microsoft.XMLHTTP')
        }) || false;
    },
    activeRequestCount: 0
};
Ajax.Responders = {
    responders: [],
    _each: function(iterator) {
        this.responders._each(iterator);
    },
    register: function(responder) {
        if (!this.include(responder)) this.responders.push(responder);
    },
    unregister: function(responder) {
        this.responders = this.responders.without(responder);
    },
    dispatch: function(callback, request, transport, json) {
        this.each(function(responder) {
            if (Object.isFunction(responder[callback])) {
                try {
                    responder[callback].apply(responder, [request, transport, json]);
                } catch (e) {}
            }
        });
    }
};
Object.extend(Ajax.Responders, Enumerable);
Ajax.Responders.register({
    onCreate: function() {
        Ajax.activeRequestCount++
    },
    onComplete: function() {
        Ajax.activeRequestCount--
    }
});
Ajax.Base = Class.create({
    initialize: function(options) {
        this.options = {
            method: 'post',
            asynchronous: true,
            contentType: 'application/x-www-form-urlencoded',
            encoding: 'UTF-8',
            parameters: '',
            evalJSON: true,
            evalJS: true
        };
        Object.extend(this.options, options || {});
        this.options.method = this.options.method.toLowerCase();
        if (Object.isString(this.options.parameters)) this.options.parameters = this.options.parameters.toQueryParams();
        else if (Object.isHash(this.options.parameters)) this.options.parameters = this.options.parameters.toObject();
    }
});
Ajax.Request = Class.create(Ajax.Base, {
    _complete: false,
    initialize: function($super, url, options) {
        $super(options);
        this.transport = Ajax.getTransport();
        this.request(url);
    },
    request: function(url) {
        this.url = url;
        this.method = this.options.method;
        var params = Object.clone(this.options.parameters);
        if (!['get', 'post'].include(this.method)) {
            params['_method'] = this.method;
            this.method = 'post';
        }
        this.parameters = params;
        if (params = Object.toQueryString(params)) {
            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);
            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 : '');
            if (this.transport.overrideMimeType && (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0, 2005])[1] < 2005) headers['Connection'] = 'close';
        }
        if (typeof this.options.requestHeaders == 'object') {
            var extras = this.options.requestHeaders;
            if (Object.isFunction(extras.push)) for (var i = 0, length = extras.length; i < length; i += 2) headers[extras[i]] = extras[i + 1];
            else $H(extras).each(function(pair) {
                headers[pair.key] = pair.value
            });
        }
        for (var name in headers)
        this.transport.setRequestHeader(name, headers[name]);
    },
    success: function() {
        var status = this.getStatus();
        return !status || (status >= 200 && status < 300);
    },
    getStatus: function() {
        try {
            return this.transport.status || 0;
        } catch (e) {
            return 0
        }
    },
    respondToReadyState: function(readyState) {
        var state = Ajax.Request.Events[readyState],
            response = new Ajax.Response(this);
        if (state == 'Complete') {
            try {
                this._complete = true;
                (this.options['on' + response.status] || this.options['on' + (this.success() ? 'Success' : 'Failure')] || Prototype.emptyFunction)(response, response.headerJSON);
            } catch (e) {
                this.dispatchException(e);
            }
            var contentType = response.getHeader('Content-type');
            if (this.options.evalJS == 'force' || (this.options.evalJS && this.isSameOrigin() && contentType && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i))) this.evalResponse();
        }
        try {
            (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
            Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
        } catch (e) {
            this.dispatchException(e);
        }
        if (state == 'Complete') {
            this.transport.onreadystatechange = Prototype.emptyFunction;
        }
    },
    isSameOrigin: function() {
        var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
        return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
            protocol: location.protocol,
            domain: document.domain,
            port: location.port ? ':' + location.port : ''
        }));
    },
    getHeader: function(name) {
        try {
            return this.transport.getResponseHeader(name) || null;
        } catch (e) {
            return null
        }
    },
    evalResponse: function() {
        try {
            return eval((this.transport.responseText || '').unfilterJSON());
        } catch (e) {
            this.dispatchException(e);
        }
    },
    dispatchException: function(exception) {
        (this.options.onException || Prototype.emptyFunction)(this, exception);
        Ajax.Responders.dispatch('onException', this, exception);
    }
});
Ajax.Request.Events = ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
Ajax.Response = Class.create({
    initialize: function(request) {
        this.request = request;
        var transport = this.transport = request.transport,
            readyState = this.readyState = transport.readyState;
        if ((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
            this.status = this.getStatus();
            this.statusText = this.getStatusText();
            this.responseText = String.interpret(transport.responseText);
            this.headerJSON = this._getHeaderJSON();
        }
        if (readyState == 4) {
            var xml = transport.responseXML;
            this.responseXML = Object.isUndefined(xml) ? null : xml;
            this.responseJSON = this._getResponseJSON();
        }
    },
    status: 0,
    statusText: '',
    getStatus: Ajax.Request.prototype.getStatus,
    getStatusText: function() {
        try {
            return this.transport.statusText || '';
        } catch (e) {
            return ''
        }
    },
    getHeader: Ajax.Request.prototype.getHeader,
    getAllHeaders: function() {
        try {
            return this.getAllResponseHeaders();
        } catch (e) {
            return null
        }
    },
    getResponseHeader: function(name) {
        return this.transport.getResponseHeader(name);
    },
    getAllResponseHeaders: function() {
        return this.transport.getAllResponseHeaders();
    },
    _getHeaderJSON: function() {
        var json = this.getHeader('X-JSON');
        if (!json) return null;
        json = decodeURIComponent(escape(json));
        try {
            return json.evalJSON(this.request.options.sanitizeJSON || !this.request.isSameOrigin());
        } catch (e) {
            this.request.dispatchException(e);
        }
    },
    _getResponseJSON: function() {
        var options = this.request.options;
        if (!options.evalJSON || (options.evalJSON != 'force' && !(this.getHeader('Content-type') || '').include('application/json')) || this.responseText.blank()) return null;
        try {
            return this.responseText.evalJSON(options.sanitizeJSON || !this.request.isSameOrigin());
        } catch (e) {
            this.request.dispatchException(e);
        }
    }
});
Ajax.Updater = Class.create(Ajax.Request, {
    initialize: function($super, container, url, options) {
        this.container = {
            success: (container.success || container),
            failure: (container.failure || (container.success ? null : container))
        };
        options = Object.clone(options);
        var onComplete = options.onComplete;
        options.onComplete = (function(response, json) {
            this.updateContent(response.responseText);
            if (Object.isFunction(onComplete)) onComplete(response, json);
        }).bind(this);
        $super(url, options);
    },
    updateContent: function(responseText) {
        var receiver = this.container[this.success() ? 'success' : 'failure'],
            options = this.options;
        if (!options.evalScripts) responseText = responseText.stripScripts();
        if (receiver = $(receiver)) {
            if (options.insertion) {
                if (Object.isString(options.insertion)) {
                    var insertion = {};
                    insertion[options.insertion] = responseText;
                    receiver.insert(insertion);
                }
                else options.insertion(receiver, responseText);
            }
            else receiver.update(responseText);
        }
    }
});
Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
    initialize: function($super, container, url, options) {
        $super(options);
        this.onComplete = this.options.onComplete;
        this.frequency = (this.options.frequency || 2);
        this.decay = (this.options.decay || 1);
        this.updater = {};
        this.container = container;
        this.url = url;
        this.start();
    },
    start: function() {
        this.options.onComplete = this.updateComplete.bind(this);
        this.onTimerEvent();
    },
    stop: function() {
        this.updater.options.onComplete = undefined;
        clearTimeout(this.timer);
        (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
    },
    updateComplete: function(response) {
        if (this.options.decay) {
            this.decay = (response.responseText == this.lastText ? this.decay * this.options.decay : 1);
            this.lastText = response.responseText;
        }
        this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
    },
    onTimerEvent: function() {
        this.updater = new Ajax.Updater(this.container, this.url, this.options);
    }
});

function $(element) {
    if (arguments.length > 1) {
        for (var i = 0, elements = [], length = arguments.length; i < length; i++)
        elements.push($(arguments[i]));
        return elements;
    }
    if (Object.isString(element)) element = document.getElementById(element);
    return Element.extend(element);
}
if (Prototype.BrowserFeatures.XPath) {
    document._getElementsByXPath = function(expression, parentElement) {
        var results = [];
        var query = document.evaluate(expression, $(parentElement) || document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
        for (var i = 0, length = query.snapshotLength; i < length; i++)
        results.push(Element.extend(query.snapshotItem(i)));
        return results;
    };
}
if (!window.Node) var Node = {};
if (!Node.ELEMENT_NODE) {
    Object.extend(Node, {
        ELEMENT_NODE: 1,
        ATTRIBUTE_NODE: 2,
        TEXT_NODE: 3,
        CDATA_SECTION_NODE: 4,
        ENTITY_REFERENCE_NODE: 5,
        ENTITY_NODE: 6,
        PROCESSING_INSTRUCTION_NODE: 7,
        COMMENT_NODE: 8,
        DOCUMENT_NODE: 9,
        DOCUMENT_TYPE_NODE: 10,
        DOCUMENT_FRAGMENT_NODE: 11,
        NOTATION_NODE: 12
    });
}(function() {
    var element = this.Element;
    this.Element = function(tagName, attributes) {
        attributes = attributes || {};
        tagName = tagName.toLowerCase();
        var cache = Element.cache;
        if (Prototype.Browser.IE && attributes.name) {
            tagName = '<' + tagName + ' name="' + attributes.name + '">';
            delete attributes.name;
            return Element.writeAttribute(document.createElement(tagName), attributes);
        }
        if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
        return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
    };
    Object.extend(this.Element, element || {});
}).call(window);
Element.cache = {};
Element.Methods = {
    visible: function(element) {
        return $(element).style.display != 'none';
    },
    toggle: function(element) {
        element = $(element);
        Element[Element.visible(element) ? 'hide' : 'show'](element);
        return element;
    },
    hide: function(element) {
        $(element).style.display = 'none';
        return element;
    },
    show: function(element) {
        $(element).style.display = '';
        return element;
    },
    remove: function(element) {
        element = $(element);
        element.parentNode.removeChild(element);
        return element;
    },
    update: function(element, content) {
        element = $(element);
        if (content && content.toElement) content = content.toElement();
        if (Object.isElement(content)) return element.update().insert(content);
        content = Object.toHTML(content);
        element.innerHTML = content.stripScripts();
        content.evalScripts.bind(content).defer();
        return element;
    },
    replace: function(element, content) {
        element = $(element);
        if (content && content.toElement) content = content.toElement();
        else if (!Object.isElement(content)) {
            content = Object.toHTML(content);
            var range = element.ownerDocument.createRange();
            range.selectNode(element);
            content.evalScripts.bind(content).defer();
            content = range.createContextualFragment(content.stripScripts());
        }
        element.parentNode.replaceChild(content, element);
        return element;
    },
    insert: function(element, insertions) {
        element = $(element);
        if (Object.isString(insertions) || Object.isNumber(insertions) || Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML))) insertions = {
            bottom: insertions
        };
        var content, insert, tagName, childNodes;
        for (var position in insertions) {
            content = insertions[position];
            position = position.toLowerCase();
            insert = Element._insertionTranslations[position];
            if (content && content.toElement) content = content.toElement();
            if (Object.isElement(content)) {
                insert(element, content);
                continue;
            }
            content = Object.toHTML(content);
            tagName = ((position == 'before' || position == 'after') ? element.parentNode : element).tagName.toUpperCase();
            childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
            if (position == 'top' || position == 'after') childNodes.reverse();
            childNodes.each(insert.curry(element));
            content.evalScripts.bind(content).defer();
        }
        return element;
    },
    wrap: function(element, wrapper, attributes) {
        element = $(element);
        if (Object.isElement(wrapper)) $(wrapper).writeAttribute(attributes || {});
        else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
        else wrapper = new Element('div', wrapper);
        if (element.parentNode) element.parentNode.replaceChild(wrapper, element);
        wrapper.appendChild(element);
        return wrapper;
    },
    inspect: function(element) {
        element = $(element);
        var result = '<' + element.tagName.toLowerCase();
        $H({
            'id': 'id',
            'className': 'class'
        }).each(function(pair) {
            var property = pair.first(),
                attribute = pair.last();
            var value = (element[property] || '').toString();
            if (value) result += ' ' + attribute + '=' + value.inspect(true);
        });
        return result + '>';
    },
    recursivelyCollect: function(element, property) {
        element = $(element);
        var elements = [];
        while (element = element[property])
        if (element.nodeType == 1) elements.push(Element.extend(element));
        return elements;
    },
    ancestors: function(element) {
        return $(element).recursivelyCollect('parentNode');
    },
    descendants: function(element) {
        return $(element).select("*");
    },
    firstDescendant: function(element) {
        element = $(element).firstChild;
        while (element && element.nodeType != 1) element = element.nextSibling;
        return $(element);
    },
    immediateDescendants: function(element) {
        if (!(element = $(element).firstChild)) return [];
        while (element && element.nodeType != 1) element = element.nextSibling;
        if (element) return [element].concat($(element).nextSiblings());
        return [];
    },
    previousSiblings: function(element) {
        return $(element).recursivelyCollect('previousSibling');
    },
    nextSiblings: function(element) {
        return $(element).recursivelyCollect('nextSibling');
    },
    siblings: function(element) {
        element = $(element);
        return element.previousSiblings().reverse().concat(element.nextSiblings());
    },
    match: function(element, selector) {
        if (Object.isString(selector)) selector = new Selector(selector);
        return selector.match($(element));
    },
    up: function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return $(element.parentNode);
        var ancestors = element.ancestors();
        return Object.isNumber(expression) ? ancestors[expression] : Selector.findElement(ancestors, expression, index);
    },
    down: function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return element.firstDescendant();
        return Object.isNumber(expression) ? element.descendants()[expression] : element.select(expression)[index || 0];
    },
    previous: function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
        var previousSiblings = element.previousSiblings();
        return Object.isNumber(expression) ? previousSiblings[expression] : Selector.findElement(previousSiblings, expression, index);
    },
    next: function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
        var nextSiblings = element.nextSiblings();
        return Object.isNumber(expression) ? nextSiblings[expression] : Selector.findElement(nextSiblings, expression, index);
    },
    select: function() {
        var args = $A(arguments),
            element = $(args.shift());
        return Selector.findChildElements(element, args);
    },
    adjacent: function() {
        var args = $A(arguments),
            element = $(args.shift());
        return Selector.findChildElements(element.parentNode, args).without(element);
    },
    identify: function(element) {
        element = $(element);
        var id = element.readAttribute('id'),
            self = arguments.callee;
        if (id) return id;
        do {
            id = 'anonymous_element_' + self.counter++
        } while ($(id));
        element.writeAttribute('id', id);
        return id;
    },
    readAttribute: function(element, name) {
        element = $(element);
        if (Prototype.Browser.IE) {
            var t = Element._attributeTranslations.read;
            if (t.values[name]) return t.values[name](element, name);
            if (t.names[name]) name = t.names[name];
            if (name.include(':')) {
                return (!element.attributes || !element.attributes[name]) ? null : element.attributes[name].value;
            }
        }
        return element.getAttribute(name);
    },
    writeAttribute: function(element, name, value) {
        element = $(element);
        var attributes = {},
            t = Element._attributeTranslations.write;
        if (typeof name == 'object') attributes = name;
        else attributes[name] = Object.isUndefined(value) ? true : value;
        for (var attr in attributes) {
            name = t.names[attr] || attr;
            value = attributes[attr];
            if (t.values[attr]) name = t.values[attr](element, value);
            if (value === false || value === null) element.removeAttribute(name);
            else if (value === true) element.setAttribute(name, name);
            else element.setAttribute(name, value);
        }
        return element;
    },
    getHeight: function(element) {
        return $(element).getDimensions().height;
    },
    getWidth: function(element) {
        return $(element).getDimensions().width;
    },
    classNames: function(element) {
        return new Element.ClassNames(element);
    },
    hasClassName: function(element, className) {
        if (!(element = $(element))) return;
        var elementClassName = element.className;
        return (elementClassName.length > 0 && (elementClassName == className || new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
    },
    addClassName: function(element, className) {
        if (!(element = $(element))) return;
        if (!element.hasClassName(className)) element.className += (element.className ? ' ' : '') + className;
        return element;
    },
    removeClassName: function(element, className) {
        if (!(element = $(element))) return;
        element.className = element.className.replace(new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
        return element;
    },
    toggleClassName: function(element, className) {
        if (!(element = $(element))) return;
        return element[element.hasClassName(className) ? 'removeClassName' : 'addClassName'](className);
    },
    cleanWhitespace: function(element) {
        element = $(element);
        var node = element.firstChild;
        while (node) {
            var nextNode = node.nextSibling;
            if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) element.removeChild(node);
            node = nextNode;
        }
        return element;
    },
    empty: function(element) {
        return $(element).innerHTML.blank();
    },
    descendantOf: function(element, ancestor) {
        element = $(element), ancestor = $(ancestor);
        var originalAncestor = ancestor;
        if (element.compareDocumentPosition) return (element.compareDocumentPosition(ancestor) & 8) === 8;
        if (element.sourceIndex && !Prototype.Browser.Opera) {
            var e = element.sourceIndex,
                a = ancestor.sourceIndex,
                nextAncestor = ancestor.nextSibling;
            if (!nextAncestor) {
                do {
                    ancestor = ancestor.parentNode;
                }
                while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
            }
            if (nextAncestor && nextAncestor.sourceIndex) return (e > a && e < nextAncestor.sourceIndex);
        }
        while (element = element.parentNode)
        if (element == originalAncestor) return true;
        return false;
    },
    scrollTo: function(element) {
        element = $(element);
        var pos = element.cumulativeOffset();
        window.scrollTo(pos[0], pos[1]);
        return element;
    },
    getStyle: function(element, style) {
        element = $(element);
        style = style == 'float' ? 'cssFloat' : style.camelize();
        var value = element.style[style];
        if (!value) {
            var css = document.defaultView.getComputedStyle(element, null);
            value = css ? css[style] : null;
        }
        if (style == 'opacity') return value ? parseFloat(value) : 1.0;
        return value == 'auto' ? null : value;
    },
    getOpacity: function(element) {
        return $(element).getStyle('opacity');
    },
    setStyle: function(element, styles) {
        element = $(element);
        var elementStyle = element.style,
            match;
        if (Object.isString(styles)) {
            element.style.cssText += ';' + styles;
            return styles.include('opacity') ? element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
        }
        for (var property in styles)
        if (property == 'opacity') element.setOpacity(styles[property]);
        else elementStyle[(property == 'float' || property == 'cssFloat') ? (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') : property] = styles[property];
        return element;
    },
    setOpacity: function(element, value) {
        element = $(element);
        element.style.opacity = (value == 1 || value === '') ? '' : (value < 0.00001) ? 0 : value;
        return element;
    },
    getDimensions: function(element) {
        element = $(element);
        var display = $(element).getStyle('display');
        if (display != 'none' && display != null) return {
            width: element.offsetWidth,
            height: element.offsetHeight
        };
        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';
            if (window.opera) {
                element.style.top = 0;
                element.style.left = 0;
            }
        }
        return element;
    },
    undoPositioned: function(element) {
        element = $(element);
        if (element._madePositioned) {
            element._madePositioned = undefined;
            element.style.position = element.style.top = element.style.left = element.style.bottom = element.style.right = '';
        }
        return element;
    },
    makeClipping: function(element) {
        element = $(element);
        if (element._overflow) return element;
        element._overflow = Element.getStyle(element, 'overflow') || 'auto';
        if (element._overflow !== 'hidden') element.style.overflow = 'hidden';
        return element;
    },
    undoClipping: function(element) {
        element = $(element);
        if (!element._overflow) return element;
        element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
        element._overflow = null;
        return element;
    },
    cumulativeOffset: function(element) {
        var valueT = 0,
            valueL = 0;
        do {
            valueT += element.offsetTop || 0;
            valueL += element.offsetLeft || 0;
            element = element.offsetParent;
        } while (element);
        return Element._returnOffset(valueL, valueT);
    },
    positionedOffset: function(element) {
        var valueT = 0,
            valueL = 0;
        do {
            valueT += element.offsetTop || 0;
            valueL += element.offsetLeft || 0;
            element = element.offsetParent;
            if (element) {
                if (element.tagName == 'BODY') break;
                var p = Element.getStyle(element, 'position');
                if (p !== 'static') break;
            }
        } while (element);
        return Element._returnOffset(valueL, valueT);
    },
    absolutize: function(element) {
        element = $(element);
        if (element.getStyle('position') == 'absolute') return;
        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;
        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;
            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] || {});
        source = $(source);
        var p = source.viewportOffset();
        element = $(element);
        var delta = [0, 0];
        var parent = null;
        if (Element.getStyle(element, 'position') == 'absolute') {
            parent = element.getOffsetParent();
            delta = parent.viewportOffset();
        }
        if (parent == document.body) {
            delta[0] -= document.body.offsetLeft;
            delta[1] -= document.body.offsetTop;
        }
        if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
        if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
        if (options.setWidth) element.style.width = source.offsetWidth + 'px';
        if (options.setHeight) element.style.height = source.offsetHeight + 'px';
        return element;
    }
};
Element.Methods.identify.counter = 1;
Object.extend(Element.Methods, {
    getElementsBySelector: Element.Methods.select,
    childElements: Element.Methods.immediateDescendants
});
Element._attributeTranslations = {
    write: {
        names: {
            className: 'class',
            htmlFor: 'for'
        },
        values: {}
    }
};
if (Prototype.Browser.Opera) {
    Element.Methods.getStyle = Element.Methods.getStyle.wrap(function(proceed, element, style) {
        switch (style) {
        case 'left':
        case 'top':
        case 'right':
        case 'bottom':
            if (proceed(element, 'position') === 'static') return null;
        case 'height':
        case 'width':
            if (!Element.visible(element)) return null;
            var dim = parseInt(proceed(element, style), 10);
            if (dim !== element['offset' + style.capitalize()]) return dim + 'px';
            var properties;
            if (style === 'height') {
                properties = ['border-top-width', 'padding-top', 'padding-bottom', 'border-bottom-width'];
            }
            else {
                properties = ['border-left-width', 'padding-left', 'padding-right', 'border-right-width'];
            }
            return properties.inject(dim, function(memo, property) {
                var val = proceed(element, property);
                return val === null ? memo : memo - parseInt(val, 10);
            }) + 'px';
        default:
            return proceed(element, style);
        }
    });
    Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(function(proceed, element, attribute) {
        if (attribute === 'title') return element.title;
        return proceed(element, attribute);
    });
}
else if (Prototype.Browser.IE) {
    Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        element.setStyle({
            position: 'relative'
        });
        var value = proceed(element);
        element.setStyle({
            position: position
        });
        return value;
    });
    $w('positionedOffset viewportOffset').each(function(method) {
        Element.Methods[method] = Element.Methods[method].wrap(function(proceed, element) {
            element = $(element);
            var position = element.getStyle('position');
            if (position !== 'static') return proceed(element);
            var offsetParent = element.getOffsetParent();
            if (offsetParent && offsetParent.getStyle('position') === 'fixed') offsetParent.setStyle({
                zoom: 1
            });
            element.setStyle({
                position: 'relative'
            });
            var value = proceed(element);
            element.setStyle({
                position: position
            });
            return value;
        });
    });
    Element.Methods.getStyle = function(element, style) {
        element = $(element);
        style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
        var value = element.style[style];
        if (!value && element.currentStyle) value = element.currentStyle[style];
        if (style == 'opacity') {
            if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/)) if (value[1]) return parseFloat(value[1]) / 100;
            return 1.0;
        }
        if (value == 'auto') {
            if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none')) return element['offset' + style.capitalize()] + 'px';
            return null;
        }
        return value;
    };
    Element.Methods.setOpacity = function(element, value) {
        function stripAlpha(filter) {
            return filter.replace(/alpha\([^\)]*\)/gi, '');
        }
        element = $(element);
        var currentStyle = element.currentStyle;
        if ((currentStyle && !currentStyle.hasLayout) || (!currentStyle && element.style.zoom == 'normal')) element.style.zoom = 1;
        var filter = element.getStyle('filter'),
            style = element.style;
        if (value == 1 || value === '') {
            (filter = stripAlpha(filter)) ? style.filter = filter : style.removeAttribute('filter');
            return element;
        } else if (value < 0.00001) value = 0;
        style.filter = stripAlpha(filter) + 'alpha(opacity=' + (value * 100) + ')';
        return element;
    };
    Element._attributeTranslations = {
        read: {
            names: {
                'class': 'className',
                'for': 'htmlFor'
            },
            values: {
                _getAttr: function(element, attribute) {
                    return element.getAttribute(attribute, 2);
                },
                _getAttrNode: function(element, attribute) {
                    var node = element.getAttributeNode(attribute);
                    return node ? node.value : "";
                },
                _getEv: function(element, attribute) {
                    attribute = element.getAttribute(attribute);
                    return attribute ? attribute.toString().slice(23, -2) : null;
                },
                _flag: function(element, attribute) {
                    return $(element).hasAttribute(attribute) ? attribute : null;
                },
                style: function(element) {
                    return element.style.cssText.toLowerCase();
                },
                title: function(element) {
                    return element.title;
                }
            }
        }
    };
    Element._attributeTranslations.write = {
        names: Object.extend({
            cellpadding: 'cellPadding',
            cellspacing: 'cellSpacing'
        }, Element._attributeTranslations.read.names),
        values: {
            checked: function(element, value) {
                element.checked = !! value;
            },
            style: function(element, value) {
                element.style.cssText = value ? value : '';
            }
        }
    };
    Element._attributeTranslations.has = {};
    $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' + 'encType maxLength readOnly longDesc').each(function(attr) {
        Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
        Element._attributeTranslations.has[attr.toLowerCase()] = attr;
    });
    (function(v) {
        Object.extend(v, {
            href: v._getAttr,
            src: v._getAttr,
            type: v._getAttr,
            action: v._getAttrNode,
            disabled: v._flag,
            checked: v._flag,
            readonly: v._flag,
            multiple: v._flag,
            onload: v._getEv,
            onunload: v._getEv,
            onclick: v._getEv,
            ondblclick: v._getEv,
            onmousedown: v._getEv,
            onmouseup: v._getEv,
            onmouseover: v._getEv,
            onmousemove: v._getEv,
            onmouseout: v._getEv,
            onfocus: v._getEv,
            onblur: v._getEv,
            onkeypress: v._getEv,
            onkeydown: v._getEv,
            onkeyup: v._getEv,
            onsubmit: v._getEv,
            onreset: v._getEv,
            onselect: v._getEv,
            onchange: v._getEv
        });
    })(Element._attributeTranslations.read.values);
}
else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
    Element.Methods.setOpacity = function(element, value) {
        element = $(element);
        element.style.opacity = (value == 1) ? 0.999999 : (value === '') ? '' : (value < 0.00001) ? 0 : value;
        return element;
    };
}
else if (Prototype.Browser.WebKit) {
    Element.Methods.setOpacity = function(element, value) {
        element = $(element);
        element.style.opacity = (value == 1 || value === '') ? '' : (value < 0.00001) ? 0 : value;
        if (value == 1) if (element.tagName == 'IMG' && element.width) {
            element.width++;
            element.width--;
        } else try {
            var n = document.createTextNode(' ');
            element.appendChild(n);
            element.removeChild(n);
        } catch (e) {}
        return element;
    };
    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) {
    Element.Methods.update = function(element, content) {
        element = $(element);
        if (content && content.toElement) content = content.toElement();
        if (Object.isElement(content)) return element.update().insert(content);
        content = Object.toHTML(content);
        var tagName = element.tagName.toUpperCase();
        if (tagName in Element._insertionTranslations.tags) {
            $A(element.childNodes).each(function(node) {
                element.removeChild(node)
            });
            Element._getContentFromAnonymousElement(tagName, content.stripScripts()).each(function(node) {
                element.appendChild(node)
            });
        }
        else element.innerHTML = content.stripScripts();
        content.evalScripts.bind(content).defer();
        return element;
    };
}
if ('outerHTML' in document.createElement('div')) {
    Element.Methods.replace = function(element, content) {
        element = $(element);
        if (content && content.toElement) content = content.toElement();
        if (Object.isElement(content)) {
            element.parentNode.replaceChild(content, element);
            return element;
        }
        content = Object.toHTML(content);
        var parent = element.parentNode,
            tagName = parent.tagName.toUpperCase();
        if (Element._insertionTranslations.tags[tagName]) {
            var nextSibling = element.next();
            var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
            parent.removeChild(element);
            if (nextSibling) fragments.each(function(node) {
                parent.insertBefore(node, nextSibling)
            });
            else fragments.each(function(node) {
                parent.appendChild(node)
            });
        }
        else element.outerHTML = content.stripScripts();
        content.evalScripts.bind(content).defer();
        return element;
    };
}
Element._returnOffset = function(l, t) {
    var result = [l, t];
    result.left = l;
    result.top = t;
    return result;
};
Element._getContentFromAnonymousElement = function(tagName, html) {
    var div = new Element('div'),
        t = Element._insertionTranslations.tags[tagName];
    if (t) {
        div.innerHTML = t[0] + html + t[1];
        t[2].times(function() {
            div = div.firstChild
        });
    } else div.innerHTML = html;
    return $A(div.childNodes);
};
Element._insertionTranslations = {
    before: function(element, node) {
        element.parentNode.insertBefore(node, element);
    },
    top: function(element, node) {
        element.insertBefore(node, element.firstChild);
    },
    bottom: function(element, node) {
        element.appendChild(node);
    },
    after: function(element, node) {
        element.parentNode.insertBefore(node, element.nextSibling);
    },
    tags: {
        TABLE: ['<table>', '</table>', 1],
        TBODY: ['<table><tbody>', '</tbody></table>', 2],
        TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
        TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
        SELECT: ['<select>', '</select>', 1]
    }
};
(function() {
    Object.extend(this.tags, {
        THEAD: this.tags.TBODY,
        TFOOT: this.tags.TBODY,
        TH: this.tags.TD
    });
}).call(Element._insertionTranslations);
Element.Methods.Simulated = {
    hasAttribute: function(element, attribute) {
        attribute = Element._attributeTranslations.has[attribute] || attribute;
        var node = $(element).getAttributeNode(attribute);
        return node && node.specified;
    }
};
Element.Methods.ByTag = {};
Object.extend(Element, Element.Methods);
if (!Prototype.BrowserFeatures.ElementExtensions && document.createElement('div').__proto__) {
    window.HTMLElement = {};
    window.HTMLElement.prototype = document.createElement('div').__proto__;
    Prototype.BrowserFeatures.ElementExtensions = true;
}
Element.extend = (function() {
    if (Prototype.BrowserFeatures.SpecificElementExtensions) return Prototype.K;
    var Methods = {},
        ByTag = Element.Methods.ByTag;
    var extend = Object.extend(function(element) {
        if (!element || element._extendedByPrototype || element.nodeType != 1 || element == window) return element;
        var methods = Object.clone(Methods),
            tagName = element.tagName,
            property, value;
        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() {
            if (!Prototype.BrowserFeatures.ElementExtensions) {
                Object.extend(Methods, Element.Methods);
                Object.extend(Methods, Element.Methods.Simulated);
            }
        }
    });
    extend.refresh();
    return extend;
})();
Element.hasAttribute = function(element, attribute) {
    if (element.hasAttribute) return element.hasAttribute(attribute);
    return Element.Methods.Simulated.hasAttribute(element, attribute);
};
Element.addMethods = function(methods) {
    var F = Prototype.BrowserFeatures,
        T = Element.Methods.ByTag;
    if (!methods) {
        Object.extend(Form, Form.Methods);
        Object.extend(Form.Element, Form.Element.Methods);
        Object.extend(Element.Methods.ByTag, {
            "FORM": Object.clone(Form.Methods),
            "INPUT": Object.clone(Form.Element.Methods),
            "SELECT": Object.clone(Form.Element.Methods),
            "TEXTAREA": Object.clone(Form.Element.Methods)
        });
    }
    if (arguments.length == 2) {
        var tagName = methods;
        methods = arguments[1];
    }
    if (!tagName) Object.extend(Element.Methods, methods || {});
    else {
        if (Object.isArray(tagName)) tagName.each(extend);
        else extend(tagName);
    }

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

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

    function findDOMClass(tagName) {
        var klass;
        var trans = {
            "OPTGROUP": "OptGroup",
            "TEXTAREA": "TextArea",
            "P": "Paragraph",
            "FIELDSET": "FieldSet",
            "UL": "UList",
            "OL": "OList",
            "DL": "DList",
            "DIR": "Directory",
            "H1": "Heading",
            "H2": "Heading",
            "H3": "Heading",
            "H4": "Heading",
            "H5": "Heading",
            "H6": "Heading",
            "Q": "Quote",
            "INS": "Mod",
            "DEL": "Mod",
            "A": "Anchor",
            "IMG": "Image",
            "CAPTION": "TableCaption",
            "COL": "TableCol",
            "COLGROUP": "TableCol",
            "THEAD": "TableSection",
            "TFOOT": "TableSection",
            "TBODY": "TableSection",
            "TR": "TableRow",
            "TH": "TableCell",
            "TD": "TableCell",
            "FRAMESET": "FrameSet",
            "IFRAME": "IFrame"
        };
        if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
        if (window[klass]) return window[klass];
        klass = 'HTML' + tagName + 'Element';
        if (window[klass]) return window[klass];
        klass = 'HTML' + tagName.capitalize() + 'Element';
        if (window[klass]) return window[klass];
        window[klass] = {};
        window[klass].prototype = document.createElement(tagName).__proto__;
        return window[klass];
    }
    if (F.ElementExtensions) {
        copy(Element.Methods, HTMLElement.prototype);
        copy(Element.Methods.Simulated, HTMLElement.prototype, true);
    }
    if (F.SpecificElementExtensions) {
        for (var tag in Element.Methods.ByTag) {
            var klass = findDOMClass(tag);
            if (Object.isUndefined(klass)) continue;
            copy(T[tag], klass.prototype);
        }
    }
    Object.extend(Element, Element.Methods);
    delete Element.ByTag;
    if (Element.extend.refresh) Element.extend.refresh();
    Element.cache = {};
};
document.viewport = {
    getDimensions: function() {
        var dimensions = {};
        var B = Prototype.Browser;
        $w('width height').each(function(d) {
            var D = d.capitalize();
            dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] : (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
        });
        return dimensions;
    },
    getWidth: function() {
        return this.getDimensions().width;
    },
    getHeight: function() {
        return this.getDimensions().height;
    },
    getScrollOffsets: function() {
        return Element._returnOffset(window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft, window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
    }
};
var Selector = Class.create({
    initialize: function(expression) {
        this.expression = expression.strip();
        this.compileMatcher();
    },
    shouldUseXPath: function() {
        if (!Prototype.BrowserFeatures.XPath) return false;
        var e = this.expression;
        if (Prototype.Browser.WebKit && (e.include("-of-type") || e.include(":empty"))) return false;
        if ((/(\[[\w-]*?:|:checked)/).test(this.expression)) return false;
        return true;
    },
    compileMatcher: function() {
        if (this.shouldUseXPath()) return this.compileXPathMatcher();
        var e = this.expression,
            ps = Selector.patterns,
            h = Selector.handlers,
            c = Selector.criteria,
            le, p, m;
        if (Selector._cache[e]) {
            this.matcher = Selector._cache[e];
            return;
        }
        this.matcher = ["this.matcher = function(root) {", "var r = root, h = Selector.handlers, c = false, n;"];
        while (e && le != e && (/\S/).test(e)) {
            le = e;
            for (var i in ps) {
                p = ps[i];
                if (m = e.match(p)) {
                    this.matcher.push(Object.isFunction(c[i]) ? c[i](m) : new Template(c[i]).evaluate(m));
                    e = e.replace(m[0], '');
                    break;
                }
            }
        }
        this.matcher.push("return h.unique(n);\n}");
        eval(this.matcher.join('\n'));
        Selector._cache[this.expression] = this.matcher;
    },
    compileXPathMatcher: function() {
        var e = this.expression,
            ps = Selector.patterns,
            x = Selector.xpath,
            le, m;
        if (Selector._cache[e]) {
            this.xpath = Selector._cache[e];
            return;
        }
        this.matcher = ['.//*'];
        while (e && le != e && (/\S/).test(e)) {
            le = e;
            for (var i in ps) {
                if (m = e.match(ps[i])) {
                    this.matcher.push(Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m));
                    e = e.replace(m[0], '');
                    break;
                }
            }
        }
        this.xpath = this.matcher.join('');
        Selector._cache[this.expression] = this.xpath;
    },
    findElements: function(root) {
        root = root || document;
        if (this.xpath) return document._getElementsByXPath(this.xpath, root);
        return this.matcher(root);
    },
    match: function(element) {
        this.tokens = [];
        var e = this.expression,
            ps = Selector.patterns,
            as = Selector.assertions;
        var le, p, m;
        while (e && le !== e && (/\S/).test(e)) {
            le = e;
            for (var i in ps) {
                p = ps[i];
                if (m = e.match(p)) {
                    if (as[i]) {
                        this.tokens.push([i, Object.clone(m)]);
                        e = e.replace(m[0], '');
                    } else {
                        return this.findElements(document).include(element);
                    }
                }
            }
        }
        var match = true,
            name, matches;
        for (var i = 0, token; token = this.tokens[i]; i++) {
            name = token[0], matches = token[1];
            if (!Selector.assertions[name](element, matches)) {
                match = false;
                break;
            }
        }
        return match;
    },
    toString: function() {
        return this.expression;
    },
    inspect: function() {
        return "#<Selector:" + this.expression.inspect() + ">";
    }
});
Object.extend(Selector, {
    _cache: {},
    xpath: {
        descendant: "//*",
        child: "/*",
        adjacent: "/following-sibling::*[1]",
        laterSibling: '/following-sibling::*',
        tagName: function(m) {
            if (m[1] == '*') return '';
            return "[local-name()='" + m[1].toLowerCase() + "' or local-name()='" + m[1].toUpperCase() + "']";
        },
        className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
        id: "[@id='#{1}']",
        attrPresence: function(m) {
            m[1] = m[1].toLowerCase();
            return new Template("[@#{1}]").evaluate(m);
        },
        attr: function(m) {
            m[1] = m[1].toLowerCase();
            m[3] = m[5] || m[6];
            return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
        },
        pseudo: function(m) {
            var h = Selector.xpath.pseudos[m[1]];
            if (!h) return '';
            if (Object.isFunction(h)) return h(m);
            return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
        },
        operators: {
            '=': "[@#{1}='#{3}']",
            '!=': "[@#{1}!='#{3}']",
            '^=': "[starts-with(@#{1}, '#{3}')]",
            '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
            '*=': "[contains(@#{1}, '#{3}')]",
            '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
            '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
        },
        pseudos: {
            'first-child': '[not(preceding-sibling::*)]',
            'last-child': '[not(following-sibling::*)]',
            'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
            'empty': "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
            'checked': "[@checked]",
            'disabled': "[@disabled]",
            'enabled': "[not(@disabled)]",
            'not': function(m) {
                var e = m[6],
                    p = Selector.patterns,
                    x = Selector.xpath,
                    le, v;
                var exclusion = [];
                while (e && le != e && (/\S/).test(e)) {
                    le = e;
                    for (var i in p) {
                        if (m = e.match(p[i])) {
                            v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
                            exclusion.push("(" + v.substring(1, v.length - 1) + ")");
                            e = e.replace(m[0], '');
                            break;
                        }
                    }
                }
                return "[not(" + exclusion.join(" and ") + ")]";
            },
            'nth-child': function(m) {
                return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
            },
            'nth-last-child': function(m) {
                return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
            },
            'nth-of-type': function(m) {
                return Selector.xpath.pseudos.nth("position() ", m);
            },
            'nth-last-of-type': function(m) {
                return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
            },
            'first-of-type': function(m) {
                m[6] = "1";
                return Selector.xpath.pseudos['nth-of-type'](m);
            },
            'last-of-type': function(m) {
                m[6] = "1";
                return Selector.xpath.pseudos['nth-last-of-type'](m);
            },
            'only-of-type': function(m) {
                var p = Selector.xpath.pseudos;
                return p['first-of-type'](m) + p['last-of-type'](m);
            },
            nth: function(fragment, m) {
                var mm, formula = m[6],
                    predicate;
                if (formula == 'even') formula = '2n+0';
                if (formula == 'odd') formula = '2n+1';
                if (mm = formula.match(/^(\d+)$/)) return '[' + fragment + "= " + mm[1] + ']';
                if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) {
                    if (mm[1] == "-") mm[1] = -1;
                    var a = mm[1] ? Number(mm[1]) : 1;
                    var b = mm[2] ? Number(mm[2]) : 0;
                    predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " + "((#{fragment} - #{b}) div #{a} >= 0)]";
                    return new Template(predicate).evaluate({
                        fragment: fragment,
                        a: a,
                        b: b
                    });
                }
            }
        }
    },
    criteria: {
        tagName: 'n = h.tagName(n, r, "#{1}", c);      c = false;',
        className: 'n = h.className(n, r, "#{1}", c);    c = false;',
        id: 'n = h.id(n, r, "#{1}", c);           c = false;',
        attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
        attr: function(m) {
            m[3] = (m[5] || m[6]);
            return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
        },
        pseudo: function(m) {
            if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
            return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
        },
        descendant: 'c = "descendant";',
        child: 'c = "child";',
        adjacent: 'c = "adjacent";',
        laterSibling: 'c = "laterSibling";'
    },
    patterns: {
        laterSibling: /^\s*~\s*/,
        child: /^\s*>\s*/,
        adjacent: /^\s*\+\s*/,
        descendant: /^\s/,
        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: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
    },
    assertions: {
        tagName: function(element, matches) {
            return matches[1].toUpperCase() == element.tagName.toUpperCase();
        },
        className: function(element, matches) {
            return Element.hasClassName(element, matches[1]);
        },
        id: function(element, matches) {
            return element.id === matches[1];
        },
        attrPresence: function(element, matches) {
            return Element.hasAttribute(element, matches[1]);
        },
        attr: function(element, matches) {
            var nodeValue = Element.readAttribute(element, matches[1]);
            return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
        }
    },
    handlers: {
        concat: function(a, b) {
            for (var i = 0, node; node = b[i]; i++)
            a.push(node);
            return a;
        },
        mark: function(nodes) {
            var _true = Prototype.emptyFunction;
            for (var i = 0, node; node = nodes[i]; i++)
            node._countedByPrototype = _true;
            return nodes;
        },
        unmark: function(nodes) {
            for (var i = 0, node; node = nodes[i]; i++)
            node._countedByPrototype = undefined;
            return nodes;
        },
        index: function(parentNode, reverse, ofType) {
            parentNode._countedByPrototype = Prototype.emptyFunction;
            if (reverse) {
                for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
                    var node = nodes[i];
                    if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
                }
            } else {
                for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
                if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
            }
        },
        unique: function(nodes) {
            if (nodes.length == 0) return nodes;
            var results = [],
                n;
            for (var i = 0, l = nodes.length; i < l; i++)
            if (!(n = nodes[i])._countedByPrototype) {
                n._countedByPrototype = Prototype.emptyFunction;
                results.push(Element.extend(n));
            }
            return Selector.handlers.unmark(results);
        },
        descendant: function(nodes) {
            var h = Selector.handlers;
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            h.concat(results, node.getElementsByTagName('*'));
            return results;
        },
        child: function(nodes) {
            var h = Selector.handlers;
            for (var i = 0, results = [], node; node = nodes[i]; i++) {
                for (var j = 0, child; child = node.childNodes[j]; j++)
                if (child.nodeType == 1 && child.tagName != '!') results.push(child);
            }
            return results;
        },
        adjacent: function(nodes) {
            for (var i = 0, results = [], node; node = nodes[i]; i++) {
                var next = this.nextElementSibling(node);
                if (next) results.push(next);
            }
            return results;
        },
        laterSibling: function(nodes) {
            var h = Selector.handlers;
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            h.concat(results, Element.nextSiblings(node));
            return results;
        },
        nextElementSibling: function(node) {
            while (node = node.nextSibling)
            if (node.nodeType == 1) return node;
            return null;
        },
        previousElementSibling: function(node) {
            while (node = node.previousSibling)
            if (node.nodeType == 1) return node;
            return null;
        },
        tagName: function(nodes, root, tagName, combinator) {
            var uTagName = tagName.toUpperCase();
            var results = [],
                h = Selector.handlers;
            if (nodes) {
                if (combinator) {
                    if (combinator == "descendant") {
                        for (var i = 0, node; node = nodes[i]; i++)
                        h.concat(results, node.getElementsByTagName(tagName));
                        return results;
                    } else nodes = this[combinator](nodes);
                    if (tagName == "*") return nodes;
                }
                for (var i = 0, node; node = nodes[i]; i++)
                if (node.tagName.toUpperCase() === uTagName) results.push(node);
                return results;
            } else return root.getElementsByTagName(tagName);
        },
        id: function(nodes, root, id, combinator) {
            var targetNode = $(id),
                h = Selector.handlers;
            if (!targetNode) return [];
            if (!nodes && root == document) return [targetNode];
            if (nodes) {
                if (combinator) {
                    if (combinator == 'child') {
                        for (var i = 0, node; node = nodes[i]; i++)
                        if (targetNode.parentNode == node) return [targetNode];
                    } else if (combinator == 'descendant') {
                        for (var i = 0, node; node = nodes[i]; i++)
                        if (Element.descendantOf(targetNode, node)) return [targetNode];
                    } else if (combinator == 'adjacent') {
                        for (var i = 0, node; node = nodes[i]; i++)
                        if (Selector.handlers.previousElementSibling(targetNode) == node) return [targetNode];
                    } else nodes = h[combinator](nodes);
                }
                for (var i = 0, node; node = nodes[i]; i++)
                if (node == targetNode) return [targetNode];
                return [];
            }
            return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
        },
        className: function(nodes, root, className, combinator) {
            if (nodes && combinator) nodes = this[combinator](nodes);
            return Selector.handlers.byClassName(nodes, root, className);
        },
        byClassName: function(nodes, root, className) {
            if (!nodes) nodes = Selector.handlers.descendant([root]);
            var needle = ' ' + className + ' ';
            for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
                nodeClassName = node.className;
                if (nodeClassName.length == 0) continue;
                if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle)) results.push(node);
            }
            return results;
        },
        attrPresence: function(nodes, root, attr, combinator) {
            if (!nodes) nodes = root.getElementsByTagName("*");
            if (nodes && combinator) nodes = this[combinator](nodes);
            var results = [];
            for (var i = 0, node; node = nodes[i]; i++)
            if (Element.hasAttribute(node, attr)) results.push(node);
            return results;
        },
        attr: function(nodes, root, attr, value, operator, combinator) {
            if (!nodes) nodes = root.getElementsByTagName("*");
            if (nodes && combinator) nodes = this[combinator](nodes);
            var handler = Selector.operators[operator],
                results = [];
            for (var i = 0, node; node = nodes[i]; i++) {
                var nodeValue = Element.readAttribute(node, attr);
                if (nodeValue === null) continue;
                if (handler(nodeValue, value)) results.push(node);
            }
            return results;
        },
        pseudo: function(nodes, name, value, root, combinator) {
            if (nodes && combinator) nodes = this[combinator](nodes);
            if (!nodes) nodes = root.getElementsByTagName("*");
            return Selector.pseudos[name](nodes, value, root);
        }
    },
    pseudos: {
        'first-child': function(nodes, value, root) {
            for (var i = 0, results = [], node; node = nodes[i]; i++) {
                if (Selector.handlers.previousElementSibling(node)) continue;
                results.push(node);
            }
            return results;
        },
        'last-child': function(nodes, value, root) {
            for (var i = 0, results = [], node; node = nodes[i]; i++) {
                if (Selector.handlers.nextElementSibling(node)) continue;
                results.push(node);
            }
            return results;
        },
        'only-child': function(nodes, value, root) {
            var h = Selector.handlers;
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            if (!h.previousElementSibling(node) && !h.nextElementSibling(node)) results.push(node);
            return results;
        },
        'nth-child': function(nodes, formula, root) {
            return Selector.pseudos.nth(nodes, formula, root);
        },
        'nth-last-child': function(nodes, formula, root) {
            return Selector.pseudos.nth(nodes, formula, root, true);
        },
        'nth-of-type': function(nodes, formula, root) {
            return Selector.pseudos.nth(nodes, formula, root, false, true);
        },
        'nth-last-of-type': function(nodes, formula, root) {
            return Selector.pseudos.nth(nodes, formula, root, true, true);
        },
        'first-of-type': function(nodes, formula, root) {
            return Selector.pseudos.nth(nodes, "1", root, false, true);
        },
        'last-of-type': function(nodes, formula, root) {
            return Selector.pseudos.nth(nodes, "1", root, true, true);
        },
        'only-of-type': function(nodes, formula, root) {
            var p = Selector.pseudos;
            return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
        },
        getIndices: function(a, b, total) {
            if (a == 0) return b > 0 ? [b] : [];
            return $R(1, total).inject([], function(memo, i) {
                if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
                return memo;
            });
        },
        nth: function(nodes, formula, root, reverse, ofType) {
            if (nodes.length == 0) return [];
            if (formula == 'even') formula = '2n+0';
            if (formula == 'odd') formula = '2n+1';
            var h = Selector.handlers,
                results = [],
                indexed = [],
                m;
            h.mark(nodes);
            for (var i = 0, node; node = nodes[i]; i++) {
                if (!node.parentNode._countedByPrototype) {
                    h.index(node.parentNode, reverse, ofType);
                    indexed.push(node.parentNode);
                }
            }
            if (formula.match(/^\d+$/)) {
                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+))?/)) {
                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++) {
                if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
                results.push(node);
            }
            return results;
        },
        'not': function(nodes, selector, root) {
            var h = Selector.handlers,
                selectorType, m;
            var exclusions = new Selector(selector).findElements(root);
            h.mark(exclusions);
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            if (!node._countedByPrototype) results.push(node);
            h.unmark(exclusions);
            return results;
        },
        'enabled': function(nodes, value, root) {
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            if (!node.disabled) results.push(node);
            return results;
        },
        'disabled': function(nodes, value, root) {
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            if (node.disabled) results.push(node);
            return results;
        },
        'checked': function(nodes, value, root) {
            for (var i = 0, results = [], node; node = nodes[i]; i++)
            if (node.checked) results.push(node);
            return results;
        }
    },
    operators: {
        '=': function(nv, v) {
            return nv == v;
        },
        '!=': function(nv, v) {
            return nv != v;
        },
        '^=': function(nv, v) {
            return nv.startsWith(v);
        },
        '$=': function(nv, v) {
            return nv.endsWith(v);
        },
        '*=': function(nv, v) {
            return nv.include(v);
        },
        '~=': function(nv, v) {
            return (' ' + nv + ' ').include(' ' + v + ' ');
        },
        '|=': function(nv, v) {
            return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-');
        }
    },
    split: function(expression) {
        var expressions = [];
        expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
            expressions.push(m[1].strip());
        });
        return expressions;
    },
    matchElements: function(elements, expression) {
        var matches = $$(expression),
            h = Selector.handlers;
        h.mark(matches);
        for (var i = 0, results = [], element; element = elements[i]; i++)
        if (element._countedByPrototype) results.push(element);
        h.unmark(matches);
        return results;
    },
    findElement: function(elements, expression, index) {
        if (Object.isNumber(expression)) {
            index = expression;
            expression = false;
        }
        return Selector.matchElements(elements, expression || '*')[index || 0];
    },
    findChildElements: function(element, expressions) {
        expressions = Selector.split(expressions.join(','));
        var results = [],
            h = Selector.handlers;
        for (var i = 0, l = expressions.length, selector; i < l; i++) {
            selector = new Selector(expressions[i].strip());
            h.concat(results, selector.findElements(element));
        }
        return (l > 1) ? h.unique(results) : results;
    }
});
if (Prototype.Browser.IE) {
    Object.extend(Selector.handlers, {
        concat: function(a, b) {
            for (var i = 0, node; node = b[i]; i++)
            if (node.tagName !== "!") a.push(node);
            return a;
        },
        unmark: function(nodes) {
            for (var i = 0, node; node = nodes[i]; i++)
            node.removeAttribute('_countedByPrototype');
            return nodes;
        }
    });
}

function $$() {
    return Selector.findChildElements(document, $A(arguments));
}
var Form = {
    reset: function(form) {
        $(form).reset();
        return form;
    },
    serializeElements: function(elements, options) {
        if (typeof options != 'object') options = {
            hash: !! options
        };
        else if (Object.isUndefined(options.hash)) options.hash = true;
        var key, value, submitted = false,
            submit = options.submit;
        var data = elements.inject({}, function(result, element) {
            if (!element.disabled && element.name) {
                key = element.name;
                value = $(element).getValue();
                if (value != null && (element.type != 'submit' || (!submitted && submit !== false && (!submit || key == submit) && (submitted = true)))) {
                    if (key in result) {
                        if (!Object.isArray(result[key])) result[key] = [result[key]];
                        result[key].push(value);
                    }
                    else result[key] = value;
                }
            }
            return result;
        });
        return options.hash ? data : Object.toQueryString(data);
    }
};
Form.Methods = {
    serialize: function(form, options) {
        return Form.serializeElements(Form.getElements(form), options);
    },
    getElements: function(form) {
        return $A($(form).getElementsByTagName('*')).inject([], function(elements, child) {
            if (Form.Element.Serializers[child.tagName.toLowerCase()]) elements.push(Element.extend(child));
            return elements;
        });
    },
    getInputs: function(form, typeName, name) {
        form = $(form);
        var inputs = form.getElementsByTagName('input');
        if (!typeName && !name) return $A(inputs).map(Element.extend);
        for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
            var input = inputs[i];
            if ((typeName && input.type != typeName) || (name && input.name != name)) continue;
            matchingInputs.push(Element.extend(input));
        }
        return matchingInputs;
    },
    disable: function(form) {
        form = $(form);
        Form.getElements(form).invoke('disable');
        return form;
    },
    enable: function(form) {
        form = $(form);
        Form.getElements(form).invoke('enable');
        return form;
    },
    findFirstElement: function(form) {
        var elements = $(form).getElements().findAll(function(element) {
            return 'hidden' != element.type && !element.disabled;
        });
        var firstByIndex = elements.findAll(function(element) {
            return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
        }).sortBy(function(element) {
            return element.tabIndex
        }).first();
        return firstByIndex ? firstByIndex : elements.find(function(element) {
            return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
        });
    },
    focusFirstElement: function(form) {
        form = $(form);
        form.findFirstElement().activate();
        return form;
    },
    request: function(form, options) {
        form = $(form), options = Object.clone(options || {});
        var params = options.parameters,
            action = form.readAttribute('action') || '';
        if (action.blank()) action = window.location.href;
        options.parameters = form.serialize(true);
        if (params) {
            if (Object.isString(params)) params = params.toQueryParams();
            Object.extend(options.parameters, params);
        }
        if (form.hasAttribute('method') && !options.method) options.method = form.method;
        return new Ajax.Request(action, options);
    }
};
Form.Element = {
    focus: function(element) {
        $(element).focus();
        return element;
    },
    select: function(element) {
        $(element).select();
        return element;
    }
};
Form.Element.Methods = {
    serialize: function(element) {
        element = $(element);
        if (!element.disabled && element.name) {
            var value = element.getValue();
            if (value != undefined) {
                var pair = {};
                pair[element.name] = value;
                return Object.toQueryString(pair);
            }
        }
        return '';
    },
    getValue: function(element) {
        element = $(element);
        var method = element.tagName.toLowerCase();
        return Form.Element.Serializers[method](element);
    },
    setValue: function(element, value) {
        element = $(element);
        var method = element.tagName.toLowerCase();
        Form.Element.Serializers[method](element, value);
        return element;
    },
    clear: function(element) {
        $(element).value = '';
        return element;
    },
    present: function(element) {
        return $(element).value != '';
    },
    activate: function(element) {
        element = $(element);
        try {
            element.focus();
            if (element.select && (element.tagName.toLowerCase() != 'input' || !['button', 'reset', 'submit'].include(element.type))) element.select();
        } catch (e) {}
        return element;
    },
    disable: function(element) {
        element = $(element);
        element.blur();
        element.disabled = true;
        return element;
    },
    enable: function(element) {
        element = $(element);
        element.disabled = false;
        return element;
    }
};
var Field = Form.Element;
var $F = Form.Element.Methods.getValue;
Form.Element.Serializers = {
    input: function(element, value) {
        switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
            return Form.Element.Serializers.inputSelector(element, value);
        default:
            return Form.Element.Serializers.textarea(element, value);
        }
    },
    inputSelector: function(element, value) {
        if (Object.isUndefined(value)) return element.checked ? element.value : null;
        else element.checked = !! value;
    },
    textarea: function(element, value) {
        if (Object.isUndefined(value)) return element.value;
        else element.value = value;
    },
    select: function(element, index) {
        if (Object.isUndefined(index)) return this[element.type == 'select-one' ? 'selectOne' : 'selectMany'](element);
        else {
            var opt, value, single = !Object.isArray(index);
            for (var i = 0, length = element.length; i < length; i++) {
                opt = element.options[i];
                value = this.optionValue(opt);
                if (single) {
                    if (value == index) {
                        opt.selected = true;
                        return;
                    }
                }
                else opt.selected = index.include(value);
            }
        }
    },
    selectOne: function(element) {
        var index = element.selectedIndex;
        return index >= 0 ? this.optionValue(element.options[index]) : null;
    },
    selectMany: function(element) {
        var values, length = element.length;
        if (!length) return null;
        for (var i = 0, values = []; i < length; i++) {
            var opt = element.options[i];
            if (opt.selected) values.push(this.optionValue(opt));
        }
        return values;
    },
    optionValue: function(opt) {
        return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
    }
};
Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
    initialize: function($super, element, frequency, callback) {
        $super(callback, frequency);
        this.element = $(element);
        this.lastValue = this.getValue();
    },
    execute: function() {
        var value = this.getValue();
        if (Object.isString(this.lastValue) && Object.isString(value) ? this.lastValue != value : String(this.lastValue) != String(value)) {
            this.callback(this.element, value);
            this.lastValue = value;
        }
    }
});
Form.Element.Observer = Class.create(Abstract.TimedObserver, {
    getValue: function() {
        return Form.Element.getValue(this.element);
    }
});
Form.Observer = Class.create(Abstract.TimedObserver, {
    getValue: function() {
        return Form.serialize(this.element);
    }
});
Abstract.EventObserver = Class.create({
    initialize: function(element, callback) {
        this.element = $(element);
        this.callback = callback;
        this.lastValue = this.getValue();
        if (this.element.tagName.toLowerCase() == 'form') this.registerFormCallbacks();
        else this.registerCallback(this.element);
    },
    onElementEvent: function() {
        var value = this.getValue();
        if (this.lastValue != value) {
            this.callback(this.element, value);
            this.lastValue = value;
        }
    },
    registerFormCallbacks: function() {
        Form.getElements(this.element).each(this.registerCallback, this);
    },
    registerCallback: function(element) {
        if (element.type) {
            switch (element.type.toLowerCase()) {
            case 'checkbox':
            case 'radio':
                Event.observe(element, 'click', this.onElementEvent.bind(this));
                break;
            default:
                Event.observe(element, 'change', this.onElementEvent.bind(this));
                break;
            }
        }
    }
});
Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
    getValue: function() {
        return Form.Element.getValue(this.element);
    }
});
Form.EventObserver = Class.create(Abstract.EventObserver, {
    getValue: function() {
        return Form.serialize(this.element);
    }
});
if (!window.Event) var Event = {};
Object.extend(Event, {
    KEY_BACKSPACE: 8,
    KEY_TAB: 9,
    KEY_RETURN: 13,
    KEY_ESC: 27,
    KEY_LEFT: 37,
    KEY_UP: 38,
    KEY_RIGHT: 39,
    KEY_DOWN: 40,
    KEY_DELETE: 46,
    KEY_HOME: 36,
    KEY_END: 35,
    KEY_PAGEUP: 33,
    KEY_PAGEDOWN: 34,
    KEY_INSERT: 45,
    cache: {},
    relatedTarget: function(event) {
        var element;
        switch (event.type) {
        case 'mouseover':
            element = event.fromElement;
            break;
        case 'mouseout':
            element = event.toElement;
            break;
        default:
            return null;
        }
        return Element.extend(element);
    }
});
Event.Methods = (function() {
    var isButton;
    if (Prototype.Browser.IE) {
        var buttonMap = {
            0: 1,
            1: 4,
            2: 2
        };
        isButton = function(event, code) {
            return event.button == buttonMap[code];
        };
    } else if (Prototype.Browser.WebKit) {
        isButton = function(event, code) {
            switch (code) {
            case 0:
                return event.which == 1 && !event.metaKey;
            case 1:
                return event.which == 1 && event.metaKey;
            default:
                return false;
            }
        };
    } else {
        isButton = function(event, code) {
            return event.which ? (event.which === code + 1) : (event.button === code);
        };
    }
    return {
        isLeftClick: function(event) {
            return isButton(event, 0)
        },
        isMiddleClick: function(event) {
            return isButton(event, 1)
        },
        isRightClick: function(event) {
            return isButton(event, 2)
        },
        element: function(event) {
            var node = Event.extend(event).target;
            return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
        },
        findElement: function(event, expression) {
            var element = Event.element(event);
            if (!expression) return element;
            var elements = [element].concat(element.ancestors());
            return Selector.findElement(elements, expression, 0);
        },
        pointer: function(event) {
            return {
                x: event.pageX || (event.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft)),
                y: event.pageY || (event.clientY + (document.documentElement.scrollTop || document.body.scrollTop))
            };
        },
        pointerX: function(event) {
            return Event.pointer(event).x
        },
        pointerY: function(event) {
            return Event.pointer(event).y
        },
        stop: function(event) {
            Event.extend(event);
            event.preventDefault();
            event.stopPropagation();
            event.stopped = true;
        }
    };
})();
Event.extend = (function() {
    var methods = Object.keys(Event.Methods).inject({}, function(m, name) {
        m[name] = Event.Methods[name].methodize();
        return m;
    });
    if (Prototype.Browser.IE) {
        Object.extend(methods, {
            stopPropagation: function() {
                this.cancelBubble = true
            },
            preventDefault: function() {
                this.returnValue = false
            },
            inspect: function() {
                return "[object Event]"
            }
        });
        return function(event) {
            if (!event) return false;
            if (event._extendedByPrototype) return event;
            event._extendedByPrototype = Prototype.emptyFunction;
            var pointer = Event.pointer(event);
            Object.extend(event, {
                target: event.srcElement,
                relatedTarget: Event.relatedTarget(event),
                pageX: pointer.x,
                pageY: pointer.y
            });
            return Object.extend(event, methods);
        };
    } else {
        Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
        Object.extend(Event.prototype, methods);
        return Prototype.K;
    }
})();
Object.extend(Event, (function() {
    var cache = Event.cache;

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

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

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

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

    function createWrapper(element, eventName, handler) {
        var id = getEventID(element);
        var c = getWrappersForEventName(id, eventName);
        if (c.pluck("handler").include(handler)) return false;
        var wrapper = function(event) {
            if (!Event || !Event.extend || (event.eventName && event.eventName != eventName)) return false;
            Event.extend(event);
            handler.call(element, event);
        };
        wrapper.handler = handler;
        c.push(wrapper);
        return wrapper;
    }

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

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

    function destroyCache() {
        for (var id in cache)
        for (var eventName in cache[id])
        cache[id][eventName] = null;
    }
    if (window.attachEvent) {
        window.attachEvent("onunload", destroyCache);
    }
    return {
        observe: function(element, eventName, handler) {
            element = $(element);
            var name = getDOMEventName(eventName);
            var wrapper = createWrapper(element, eventName, handler);
            if (!wrapper) return element;
            if (element.addEventListener) {
                element.addEventListener(name, wrapper, false);
            } else {
                element.attachEvent("on" + name, wrapper);
            }
            return element;
        },
        stopObserving: function(element, eventName, handler) {
            element = $(element);
            var id = getEventID(element),
                name = getDOMEventName(eventName);
            if (!handler && eventName) {
                getWrappersForEventName(id, eventName).each(function(wrapper) {
                    element.stopObserving(eventName, wrapper.handler);
                });
                return element;
            } else if (!eventName) {
                Object.keys(getCacheForID(id)).each(function(eventName) {
                    element.stopObserving(eventName);
                });
                return element;
            }
            var wrapper = findWrapper(id, eventName, handler);
            if (!wrapper) return element;
            if (element.removeEventListener) {
                element.removeEventListener(name, wrapper, false);
            } else {
                element.detachEvent("on" + name, wrapper);
            }
            destroyWrapper(id, eventName, handler);
            return element;
        },
        fire: function(element, eventName, memo) {
            element = $(element);
            if (element == document && document.createEvent && !element.dispatchEvent) element = document.documentElement;
            var event;
            if (document.createEvent) {
                event = document.createEvent("HTMLEvents");
                event.initEvent("dataavailable", true, true);
            } else {
                event = document.createEventObject();
                event.eventType = "ondataavailable";
            }
            event.eventName = eventName;
            event.memo = memo || {};
            if (document.createEvent) {
                element.dispatchEvent(event);
            } else {
                element.fireEvent(event.eventType, event);
            }
            return Event.extend(event);
        }
    };
})());
Object.extend(Event, Event.Methods);
Element.addMethods({
    fire: Event.fire,
    observe: Event.observe,
    stopObserving: Event.stopObserving
});
Object.extend(document, {
    fire: Element.Methods.fire.methodize(),
    observe: Element.Methods.observe.methodize(),
    stopObserving: Element.Methods.stopObserving.methodize(),
    loaded: false
});
(function() {
    var timer;

    function fireContentLoadedEvent() {
        if (document.loaded) return;
        if (timer) window.clearInterval(timer);
        document.fire("dom:loaded");
        document.loaded = true;
    }
    if (document.addEventListener) {
        if (Prototype.Browser.WebKit) {
            timer = window.setInterval(function() {
                if (/loaded|complete/.test(document.readyState)) fireContentLoadedEvent();
            }, 0);
            Event.observe(window, "load", fireContentLoadedEvent);
        } else {
            document.addEventListener("DOMContentLoaded", fireContentLoadedEvent, false);
        }
    } else {
        document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
        $("__onDOMContentLoaded").onreadystatechange = function() {
            if (this.readyState == "complete") {
                this.onreadystatechange = null;
                fireContentLoadedEvent();
            }
        };
    }
})();
Hash.toQueryString = Object.toQueryString;
var Toggle = {
    display: Element.toggle
};
Element.Methods.childOf = Element.Methods.descendantOf;
var Insertion = {
    Before: function(element, content) {
        return Element.insert(element, {
            before: content
        });
    },
    Top: function(element, content) {
        return Element.insert(element, {
            top: content
        });
    },
    Bottom: function(element, content) {
        return Element.insert(element, {
            bottom: content
        });
    },
    After: function(element, content) {
        return Element.insert(element, {
            after: content
        });
    }
};
var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
var Position = {
    includeScrollOffsets: false,
    prepare: function() {
        this.deltaX = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0;
        this.deltaY = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
    },
    within: function(element, x, y) {
        if (this.includeScrollOffsets) return this.withinIncludingScrolloffsets(element, x, y);
        this.xcomp = x;
        this.ycomp = y;
        this.offset = Element.cumulativeOffset(element);
        return (y >= this.offset[1] && y < this.offset[1] + element.offsetHeight && x >= this.offset[0] && x < this.offset[0] + element.offsetWidth);
    },
    withinIncludingScrolloffsets: function(element, x, y) {
        var offsetcache = Element.cumulativeScrollOffset(element);
        this.xcomp = x + offsetcache[0] - this.deltaX;
        this.ycomp = y + offsetcache[1] - this.deltaY;
        this.offset = Element.cumulativeOffset(element);
        return (this.ycomp >= this.offset[1] && this.ycomp < this.offset[1] + element.offsetHeight && this.xcomp >= this.offset[0] && this.xcomp < this.offset[0] + element.offsetWidth);
    },
    overlap: function(mode, element) {
        if (!mode) return 0;
        if (mode == 'vertical') return ((this.offset[1] + element.offsetHeight) - this.ycomp) / element.offsetHeight;
        if (mode == 'horizontal') return ((this.offset[0] + element.offsetWidth) - this.xcomp) / element.offsetWidth;
    },
    cumulativeOffset: Element.Methods.cumulativeOffset,
    positionedOffset: Element.Methods.positionedOffset,
    absolutize: function(element) {
        Position.prepare();
        return Element.absolutize(element);
    },
    relativize: function(element) {
        Position.prepare();
        return Element.relativize(element);
    },
    realOffset: Element.Methods.cumulativeScrollOffset,
    offsetParent: Element.Methods.getOffsetParent,
    page: Element.Methods.viewportOffset,
    clone: function(source, target, options) {
        options = options || {};
        return Element.clonePosition(target, source, options);
    }
};
if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods) {
    function iter(name) {
        return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
    }
    instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
    function(element, className) {
        className = className.toString().strip();
        var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
        return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
    } : function(element, className) {
        className = className.toString().strip();
        var elements = [],
            classNames = (/\s/.test(className) ? $w(className) : null);
        if (!classNames && !className) return elements;
        var nodes = $(element).getElementsByTagName('*');
        className = ' ' + className + ' ';
        for (var i = 0, child, cn; child = nodes[i]; i++) {
            if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) || (classNames && classNames.all(function(name) {
                return !name.toString().blank() && cn.include(' ' + name + ' ');
            })))) elements.push(Element.extend(child));
        }
        return elements;
    };
    return function(className, parentElement) {
        return $(parentElement || document.body).getElementsByClassName(className);
    };
}(Element.Methods);
Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
    initialize: function(element) {
        this.element = $(element);
    },
    _each: function(iterator) {
        this.element.className.split(/\s+/).select(function(name) {
            return name.length > 0;
        })._each(iterator);
    },
    set: function(className) {
        this.element.className = className;
    },
    add: function(classNameToAdd) {
        if (this.include(classNameToAdd)) return;
        this.set($A(this).concat(classNameToAdd).join(' '));
    },
    remove: function(classNameToRemove) {
        if (!this.include(classNameToRemove)) return;
        this.set($A(this).without(classNameToRemove).join(' '));
    },
    toString: function() {
        return $A(this).join(' ');
    }
};
Object.extend(Element.ClassNames.prototype, Enumerable);
Element.addMethods();
String.prototype.parseColor = function() {
    var color = '#';
    if (this.slice(0, 4) == 'rgb(') {
        var cols = this.slice(4, this.length - 1).split(',');
        var i = 0;
        do {
            color += parseInt(cols[i]).toColorPart()
        } while (++i < 3);
    } else {
        if (this.slice(0, 1) == '#') {
            if (this.length == 4) for (var i = 1; i < 4; i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
            if (this.length == 7) color = this.toLowerCase();
        }
    }
    return (color.length == 7 ? color : (arguments[0] || this));
};
Element.collectTextNodes = function(element) {
    return $A($(element).childNodes).collect(function(node) {
        return (node.nodeType == 3 ? node.nodeValue : (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
    }).flatten().join('');
};
Element.collectTextNodesIgnoreClass = function(element, className) {
    return $A($(element).childNodes).collect(function(node) {
        return (node.nodeType == 3 ? node.nodeValue : ((node.hasChildNodes() && !Element.hasClassName(node, className)) ? Element.collectTextNodesIgnoreClass(node, className) : ''));
    }).flatten().join('');
};
Element.setContentZoom = function(element, percent) {
    element = $(element);
    element.setStyle({
        fontSize: (percent / 100) + 'em'
    });
    if (Prototype.Browser.WebKit) window.scrollBy(0, 0);
    return element;
};
Element.getInlineOpacity = function(element) {
    return $(element).style.opacity || '';
};
Element.forceRerendering = function(element) {
    try {
        element = $(element);
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
    } catch (e) {}
};
var Effect = {
    _elementDoesNotExistError: {
        name: 'ElementDoesNotExistError',
        message: 'The specified DOM element does not exist, but is required for this effect to operate'
    },
    Transitions: {
        linear: Prototype.K,
        sinoidal: function(pos) {
            return (-Math.cos(pos * Math.PI) / 2) + 0.5;
        },
        reverse: function(pos) {
            return 1 - pos;
        },
        flicker: function(pos) {
            var pos = ((-Math.cos(pos * Math.PI) / 4) + 0.75) + Math.random() / 4;
            return pos > 1 ? 1 : pos;
        },
        wobble: function(pos) {
            return (-Math.cos(pos * Math.PI * (9 * pos)) / 2) + 0.5;
        },
        pulse: function(pos, pulses) {
            pulses = pulses || 5;
            return (((pos % (1 / pulses)) * pulses).round() == 0 ? ((pos * pulses * 2) - (pos * pulses * 2).floor()) : 1 - ((pos * pulses * 2) - (pos * pulses * 2).floor()));
        },
        spring: function(pos) {
            return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
        },
        none: function(pos) {
            return 0;
        },
        full: function(pos) {
            return 1;
        }
    },
    DefaultOptions: {
        duration: 1.0,
        fps: 100,
        sync: false,
        from: 0.0,
        to: 1.0,
        delay: 0.0,
        queue: 'parallel'
    },
    tagifyText: function(element) {
        var tagifyStyle = 'position:relative';
        if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';
        element = $(element);
        $A(element.childNodes).each(function(child) {
            if (child.nodeType == 3) {
                child.nodeValue.toArray().each(function(character) {
                    element.insertBefore(new Element('span', {
                        style: tagifyStyle
                    }).update(character == ' ' ? String.fromCharCode(160) : character), child);
                });
                Element.remove(child);
            }
        });
    },
    multiple: function(element, effect) {
        var elements;
        if (((typeof element == 'object') || Object.isFunction(element)) && (element.length)) elements = element;
        else elements = $(element).childNodes;
        var options = Object.extend({
            speed: 0.1,
            delay: 0.0
        }, arguments[2] || {});
        var masterDelay = options.delay;
        $A(elements).each(function(element, index) {
            new effect(element, Object.extend(options, {
                delay: index * options.speed + masterDelay
            }));
        });
    },
    PAIRS: {
        'slide': ['SlideDown', 'SlideUp'],
        'blind': ['BlindDown', 'BlindUp'],
        'appear': ['Appear', 'Fade']
    },
    toggle: function(element, effect) {
        element = $(element);
        effect = (effect || 'appear').toLowerCase();
        var options = Object.extend({
            queue: {
                position: 'end',
                scope: (element.id || 'global'),
                limit: 1
            }
        }, arguments[2] || {});
        Effect[element.visible() ? Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
    }
};
Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;
Effect.ScopedQueue = Class.create(Enumerable, {
    initialize: function() {
        this.effects = [];
        this.interval = null;
    },
    _each: function(iterator) {
        this.effects._each(iterator);
    },
    add: function(effect) {
        var timestamp = new Date().getTime();
        var position = Object.isString(effect.options.queue) ? effect.options.queue : effect.options.queue.position;
        switch (position) {
        case 'front':
            this.effects.findAll(function(e) {
                return e.state == 'idle'
            }).each(function(e) {
                e.startOn += effect.finishOn;
                e.finishOn += effect.finishOn;
            });
            break;
        case 'with-last':
            timestamp = this.effects.pluck('startOn').max() || timestamp;
            break;
        case 'end':
            timestamp = this.effects.pluck('finishOn').max() || timestamp;
            break;
        }
        effect.startOn += timestamp;
        effect.finishOn += timestamp;
        if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit)) this.effects.push(effect);
        if (!this.interval) this.interval = setInterval(this.loop.bind(this), 15);
    },
    remove: function(effect) {
        this.effects = this.effects.reject(function(e) {
            return e == effect
        });
        if (this.effects.length == 0) {
            clearInterval(this.interval);
            this.interval = null;
        }
    },
    loop: function() {
        var timePos = new Date().getTime();
        for (var i = 0, len = this.effects.length; i < len; i++)
        this.effects[i] && this.effects[i].loop(timePos);
    }
});
Effect.Queues = {
    instances: $H(),
    get: function(queueName) {
        if (!Object.isString(queueName)) return queueName;
        return this.instances.get(queueName) || this.instances.set(queueName, new Effect.ScopedQueue());
    }
};
Effect.Queue = Effect.Queues.get('global');
Effect.Base = Class.create({
    position: null,
    start: function(options) {
        function codeForEvent(options, eventName) {
            return ((options[eventName + 'Internal'] ? 'this.options.' + eventName + 'Internal(this);' : '') + (options[eventName] ? 'this.options.' + eventName + '(this);' : ''));
        }
        if (options && options.transition === false) options.transition = Effect.Transitions.linear;
        this.options = Object.extend(Object.extend({}, Effect.DefaultOptions), options || {});
        this.currentFrame = 0;
        this.state = 'idle';
        this.startOn = this.options.delay * 1000;
        this.finishOn = this.startOn + (this.options.duration * 1000);
        this.fromToDelta = this.options.to - this.options.from;
        this.totalTime = this.finishOn - this.startOn;
        this.totalFrames = this.options.fps * this.options.duration;
        eval('this.render = function(pos){ ' + 'if (this.state=="idle"){this.state="running";' + codeForEvent(this.options, 'beforeSetup') + (this.setup ? 'this.setup();' : '') + codeForEvent(this.options, 'afterSetup') + '};if (this.state=="running"){' + 'pos=this.options.transition(pos)*' + this.fromToDelta + '+' + this.options.from + ';' + 'this.position=pos;' + codeForEvent(this.options, 'beforeUpdate') + (this.update ? 'this.update(pos);' : '') + codeForEvent(this.options, 'afterUpdate') + '}}');
        this.event('beforeStart');
        if (!this.options.sync) Effect.Queues.get(Object.isString(this.options.queue) ? 'global' : this.options.queue.scope).add(this);
    },
    loop: function(timePos) {
        if (timePos >= this.startOn) {
            if (timePos >= this.finishOn) {
                this.render(1.0);
                this.cancel();
                this.event('beforeFinish');
                if (this.finish) this.finish();
                this.event('afterFinish');
                return;
            }
            var pos = (timePos - this.startOn) / this.totalTime,
                frame = (pos * this.totalFrames).round();
            if (frame > this.currentFrame) {
                this.render(pos);
                this.currentFrame = frame;
            }
        }
    },
    cancel: function() {
        if (!this.options.sync) Effect.Queues.get(Object.isString(this.options.queue) ? 'global' : this.options.queue.scope).remove(this);
        this.state = 'finished';
    },
    event: function(eventName) {
        if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
        if (this.options[eventName]) this.options[eventName](this);
    },
    inspect: function() {
        var data = $H();
        for (property in this)
        if (!Object.isFunction(this[property])) data.set(property, this[property]);
        return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
    }
});
Effect.Parallel = Class.create(Effect.Base, {
    initialize: function(effects) {
        this.effects = effects || [];
        this.start(arguments[1]);
    },
    update: function(position) {
        this.effects.invoke('render', position);
    },
    finish: function(position) {
        this.effects.each(function(effect) {
            effect.render(1.0);
            effect.cancel();
            effect.event('beforeFinish');
            if (effect.finish) effect.finish(position);
            effect.event('afterFinish');
        });
    }
});
Effect.Tween = Class.create(Effect.Base, {
    initialize: function(object, from, to) {
        object = Object.isString(object) ? $(object) : object;
        var args = $A(arguments),
            method = args.last(),
            options = args.length == 5 ? args[3] : null;
        this.method = Object.isFunction(method) ? method.bind(object) : Object.isFunction(object[method]) ? object[method].bind(object) : function(value) {
            object[method] = value
        };
        this.start(Object.extend({
            from: from,
            to: to
        }, options || {}));
    },
    update: function(position) {
        this.method(position);
    }
});
Effect.Event = Class.create(Effect.Base, {
    initialize: function() {
        this.start(Object.extend({
            duration: 0
        }, arguments[0] || {}));
    },
    update: Prototype.emptyFunction
});
Effect.Opacity = Class.create(Effect.Base, {
    initialize: function(element) {
        this.element = $(element);
        if (!this.element) throw (Effect._elementDoesNotExistError);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout)) this.element.setStyle({
            zoom: 1
        });
        var options = Object.extend({
            from: this.element.getOpacity() || 0.0,
            to: 1.0
        }, arguments[1] || {});
        this.start(options);
    },
    update: function(position) {
        this.element.setOpacity(position);
    }
});
Effect.Move = Class.create(Effect.Base, {
    initialize: function(element) {
        this.element = $(element);
        if (!this.element) throw (Effect._elementDoesNotExistError);
        var options = Object.extend({
            x: 0,
            y: 0,
            mode: 'relative'
        }, arguments[1] || {});
        this.start(options);
    },
    setup: function() {
        this.element.makePositioned();
        this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
        this.originalTop = parseFloat(this.element.getStyle('top') || '0');
        if (this.options.mode == 'absolute') {
            this.options.x = this.options.x - this.originalLeft;
            this.options.y = this.options.y - this.originalTop;
        }
    },
    update: function(position) {
        this.element.setStyle({
            left: (this.options.x * position + this.originalLeft).round() + 'px',
            top: (this.options.y * position + this.originalTop).round() + 'px'
        });
    }
});
Effect.MoveBy = function(element, toTop, toLeft) {
    return new Effect.Move(element, Object.extend({
        x: toLeft,
        y: toTop
    }, arguments[3] || {}));
};
Effect.Scale = Class.create(Effect.Base, {
    initialize: function(element, percent) {
        this.element = $(element);
        if (!this.element) throw (Effect._elementDoesNotExistError);
        var options = Object.extend({
            scaleX: true,
            scaleY: true,
            scaleContent: true,
            scaleFromCenter: false,
            scaleMode: 'box',
            scaleFrom: 100.0,
            scaleTo: percent
        }, arguments[2] || {});
        this.start(options);
    },
    setup: function() {
        this.restoreAfterFinish = this.options.restoreAfterFinish || false;
        this.elementPositioning = this.element.getStyle('position');
        this.originalStyle = {};
        ['top', 'left', 'width', 'height', 'fontSize'].each(function(k) {
            this.originalStyle[k] = this.element.style[k];
        }.bind(this));
        this.originalTop = this.element.offsetTop;
        this.originalLeft = this.element.offsetLeft;
        var fontSize = this.element.getStyle('font-size') || '100%';
        ['em', 'px', '%', 'pt'].each(function(fontSizeType) {
            if (fontSize.indexOf(fontSizeType) > 0) {
                this.fontSize = parseFloat(fontSize);
                this.fontSizeType = fontSizeType;
            }
        }.bind(this));
        this.factor = (this.options.scaleTo - this.options.scaleFrom) / 100;
        this.dims = null;
        if (this.options.scaleMode == 'box') this.dims = [this.element.offsetHeight, this.element.offsetWidth];
        if (/^content/.test(this.options.scaleMode)) this.dims = [this.element.scrollHeight, this.element.scrollWidth];
        if (!this.dims) this.dims = [this.options.scaleMode.originalHeight, this.options.scaleMode.originalWidth];
    },
    update: function(position) {
        var currentScale = (this.options.scaleFrom / 100.0) + (this.factor * position);
        if (this.options.scaleContent && this.fontSize) this.element.setStyle({
            fontSize: this.fontSize * currentScale + this.fontSizeType
        });
        this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
    },
    finish: function(position) {
        if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
    },
    setDimensions: function(height, width) {
        var d = {};
        if (this.options.scaleX) d.width = width.round() + 'px';
        if (this.options.scaleY) d.height = height.round() + 'px';
        if (this.options.scaleFromCenter) {
            var topd = (height - this.dims[0]) / 2;
            var leftd = (width - this.dims[1]) / 2;
            if (this.elementPositioning == 'absolute') {
                if (this.options.scaleY) d.top = this.originalTop - topd + 'px';
                if (this.options.scaleX) d.left = this.originalLeft - leftd + 'px';
            } else {
                if (this.options.scaleY) d.top = -topd + 'px';
                if (this.options.scaleX) d.left = -leftd + 'px';
            }
        }
        this.element.setStyle(d);
    }
});
Effect.Highlight = Class.create(Effect.Base, {
    initialize: function(element) {
        this.element = $(element);
        if (!this.element) throw (Effect._elementDoesNotExistError);
        var options = Object.extend({
            startcolor: '#ffff99'
        }, arguments[1] || {});
        this.start(options);
    },
    setup: function() {
        if (this.element.getStyle('display') == 'none') {
            this.cancel();
            return;
        }
        this.oldStyle = {};
        if (!this.options.keepBackgroundImage) {
            this.oldStyle.backgroundImage = this.element.getStyle('background-image');
            this.element.setStyle({
                backgroundImage: 'none'
            });
        }
        if (!this.options.endcolor) this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
        if (!this.options.restorecolor) this.options.restorecolor = this.element.getStyle('background-color');
        this._base = $R(0, 2).map(function(i) {
            return parseInt(this.options.startcolor.slice(i * 2 + 1, i * 2 + 3), 16)
        }.bind(this));
        this._delta = $R(0, 2).map(function(i) {
            return parseInt(this.options.endcolor.slice(i * 2 + 1, i * 2 + 3), 16) - this._base[i]
        }.bind(this));
    },
    update: function(position) {
        this.element.setStyle({
            backgroundColor: $R(0, 2).inject('#', function(m, v, i) {
                return m + ((this._base[i] + (this._delta[i] * position)).round().toColorPart());
            }.bind(this))
        });
    },
    finish: function() {
        this.element.setStyle(Object.extend(this.oldStyle, {
            backgroundColor: this.options.restorecolor
        }));
    }
});
Effect.ScrollTo = function(element) {
    var options = arguments[1] || {},
        scrollOffsets = document.viewport.getScrollOffsets(),
        elementOffsets = $(element).cumulativeOffset(),
        max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();
    if (options.offset) elementOffsets[1] += options.offset;
    return new Effect.Tween(null, scrollOffsets.top, elementOffsets[1] > max ? max : elementOffsets[1], options, function(p) {
        scrollTo(scrollOffsets.left, p.round())
    });
};
Effect.Fade = function(element) {
    element = $(element);
    var oldOpacity = element.getInlineOpacity();
    var options = Object.extend({
        from: element.getOpacity() || 1.0,
        to: 0.0,
        afterFinishInternal: function(effect) {
            if (effect.options.to != 0) return;
            effect.element.hide().setStyle({
                opacity: oldOpacity
            });
        }
    }, arguments[1] || {});
    return new Effect.Opacity(element, options);
};
Effect.Appear = function(element) {
    element = $(element);
    var options = Object.extend({
        from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
        to: 1.0,
        afterFinishInternal: function(effect) {
            effect.element.forceRerendering();
        },
        beforeSetup: function(effect) {
            effect.element.setOpacity(effect.options.from).show();
        }
    }, arguments[1] || {});
    return new Effect.Opacity(element, options);
};
Effect.Puff = function(element) {
    element = $(element);
    var oldStyle = {
        opacity: element.getInlineOpacity(),
        position: element.getStyle('position'),
        top: element.style.top,
        left: element.style.left,
        width: element.style.width,
        height: element.style.height
    };
    return new Effect.Parallel([new Effect.Scale(element, 200, {
        sync: true,
        scaleFromCenter: true,
        scaleContent: true,
        restoreAfterFinish: true
    }), new Effect.Opacity(element, {
        sync: true,
        to: 0.0
    })], Object.extend({
        duration: 1.0,
        beforeSetupInternal: function(effect) {
            Position.absolutize(effect.effects[0].element)
        },
        afterFinishInternal: function(effect) {
            effect.effects[0].element.hide().setStyle(oldStyle);
        }
    }, arguments[1] || {}));
};
Effect.BlindUp = function(element) {
    element = $(element);
    element.makeClipping();
    return new Effect.Scale(element, 0, Object.extend({
        scaleContent: false,
        scaleX: false,
        restoreAfterFinish: true,
        afterFinishInternal: function(effect) {
            effect.element.hide().undoClipping();
        }
    }, arguments[1] || {}));
};
Effect.BlindDown = function(element) {
    element = $(element);
    var elementDimensions = element.getDimensions();
    return new Effect.Scale(element, 100, Object.extend({
        scaleContent: false,
        scaleX: false,
        scaleFrom: 0,
        scaleMode: {
            originalHeight: elementDimensions.height,
            originalWidth: elementDimensions.width
        },
        restoreAfterFinish: true,
        afterSetup: function(effect) {
            effect.element.makeClipping().setStyle({
                height: '0px'
            }).show();
        },
        afterFinishInternal: function(effect) {
            effect.element.undoClipping();
        }
    }, arguments[1] || {}));
};
Effect.SwitchOff = function(element) {
    element = $(element);
    var oldOpacity = element.getInlineOpacity();
    return new Effect.Appear(element, Object.extend({
        duration: 0.4,
        from: 0,
        transition: Effect.Transitions.flicker,
        afterFinishInternal: function(effect) {
            new Effect.Scale(effect.element, 1, {
                duration: 0.3,
                scaleFromCenter: true,
                scaleX: false,
                scaleContent: false,
                restoreAfterFinish: true,
                beforeSetup: function(effect) {
                    effect.element.makePositioned().makeClipping();
                },
                afterFinishInternal: function(effect) {
                    effect.element.hide().undoClipping().undoPositioned().setStyle({
                        opacity: oldOpacity
                    });
                }
            })
        }
    }, arguments[1] || {}));
};
Effect.DropOut = function(element) {
    element = $(element);
    var oldStyle = {
        top: element.getStyle('top'),
        left: element.getStyle('left'),
        opacity: element.getInlineOpacity()
    };
    return new Effect.Parallel([new Effect.Move(element, {
        x: 0,
        y: 100,
        sync: true
    }), new Effect.Opacity(element, {
        sync: true,
        to: 0.0
    })], Object.extend({
        duration: 0.5,
        beforeSetup: function(effect) {
            effect.effects[0].element.makePositioned();
        },
        afterFinishInternal: function(effect) {
            effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        }
    }, arguments[1] || {}));
};
Effect.Shake = function(element) {
    element = $(element);
    var options = Object.extend({
        distance: 20,
        duration: 0.5
    }, arguments[1] || {});
    var distance = parseFloat(options.distance);
    var split = parseFloat(options.duration) / 10.0;
    var oldStyle = {
        top: element.getStyle('top'),
        left: element.getStyle('left')
    };
    return new Effect.Move(element, {
        x: distance,
        y: 0,
        duration: split,
        afterFinishInternal: function(effect) {
            new Effect.Move(effect.element, {
                x: -distance * 2,
                y: 0,
                duration: split * 2,
                afterFinishInternal: function(effect) {
                    new Effect.Move(effect.element, {
                        x: distance * 2,
                        y: 0,
                        duration: split * 2,
                        afterFinishInternal: function(effect) {
                            new Effect.Move(effect.element, {
                                x: -distance * 2,
                                y: 0,
                                duration: split * 2,
                                afterFinishInternal: function(effect) {
                                    new Effect.Move(effect.element, {
                                        x: distance * 2,
                                        y: 0,
                                        duration: split * 2,
                                        afterFinishInternal: function(effect) {
                                            new Effect.Move(effect.element, {
                                                x: -distance,
                                                y: 0,
                                                duration: split,
                                                afterFinishInternal: function(effect) {
                                                    effect.element.undoPositioned().setStyle(oldStyle);
                                                }
                                            })
                                        }
                                    })
                                }
                            })
                        }
                    })
                }
            })
        }
    });
};
Effect.SlideDown = function(element) {
    element = $(element).cleanWhitespace();
    var oldInnerBottom = element.down().getStyle('bottom');
    var elementDimensions = element.getDimensions();
    return new Effect.Scale(element, 100, Object.extend({
        scaleContent: false,
        scaleX: false,
        scaleFrom: window.opera ? 0 : 1,
        scaleMode: {
            originalHeight: elementDimensions.height,
            originalWidth: elementDimensions.width
        },
        restoreAfterFinish: true,
        afterSetup: function(effect) {
            effect.element.makePositioned();
            effect.element.down().makePositioned();
            if (window.opera) effect.element.setStyle({
                top: ''
            });
            effect.element.makeClipping().setStyle({
                height: '0px'
            }).show();
        },
        afterUpdateInternal: function(effect) {
            effect.element.down().setStyle({
                bottom: (effect.dims[0] - effect.element.clientHeight) + 'px'
            });
        },
        afterFinishInternal: function(effect) {
            effect.element.undoClipping().undoPositioned();
            effect.element.down().undoPositioned().setStyle({
                bottom: oldInnerBottom
            });
        }
    }, arguments[1] || {}));
};
Effect.SlideUp = function(element) {
    element = $(element).cleanWhitespace();
    var oldInnerBottom = element.down().getStyle('bottom');
    var elementDimensions = element.getDimensions();
    return new Effect.Scale(element, window.opera ? 0 : 1, Object.extend({
        scaleContent: false,
        scaleX: false,
        scaleMode: 'box',
        scaleFrom: 100,
        scaleMode: {
            originalHeight: elementDimensions.height,
            originalWidth: elementDimensions.width
        },
        restoreAfterFinish: true,
        afterSetup: function(effect) {
            effect.element.makePositioned();
            effect.element.down().makePositioned();
            if (window.opera) effect.element.setStyle({
                top: ''
            });
            effect.element.makeClipping().show();
        },
        afterUpdateInternal: function(effect) {
            effect.element.down().setStyle({
                bottom: (effect.dims[0] - effect.element.clientHeight) + 'px'
            });
        },
        afterFinishInternal: function(effect) {
            effect.element.hide().undoClipping().undoPositioned();
            effect.element.down().undoPositioned().setStyle({
                bottom: oldInnerBottom
            });
        }
    }, arguments[1] || {}));
};
Effect.Squish = function(element) {
    return new Effect.Scale(element, window.opera ? 1 : 0, {
        restoreAfterFinish: true,
        beforeSetup: function(effect) {
            effect.element.makeClipping();
        },
        afterFinishInternal: function(effect) {
            effect.element.hide().undoClipping();
        }
    });
};
Effect.Grow = function(element) {
    element = $(element);
    var options = Object.extend({
        direction: 'center',
        moveTransition: Effect.Transitions.sinoidal,
        scaleTransition: Effect.Transitions.sinoidal,
        opacityTransition: Effect.Transitions.full
    }, arguments[1] || {});
    var oldStyle = {
        top: element.style.top,
        left: element.style.left,
        height: element.style.height,
        width: element.style.width,
        opacity: element.getInlineOpacity()
    };
    var dims = element.getDimensions();
    var initialMoveX, initialMoveY;
    var moveX, moveY;
    switch (options.direction) {
    case 'top-left':
        initialMoveX = initialMoveY = moveX = moveY = 0;
        break;
    case 'top-right':
        initialMoveX = dims.width;
        initialMoveY = moveY = 0;
        moveX = -dims.width;
        break;
    case 'bottom-left':
        initialMoveX = moveX = 0;
        initialMoveY = dims.height;
        moveY = -dims.height;
        break;
    case 'bottom-right':
        initialMoveX = dims.width;
        initialMoveY = dims.height;
        moveX = -dims.width;
        moveY = -dims.height;
        break;
    case 'center':
        initialMoveX = dims.width / 2;
        initialMoveY = dims.height / 2;
        moveX = -dims.width / 2;
        moveY = -dims.height / 2;
        break;
    }
    return new Effect.Move(element, {
        x: initialMoveX,
        y: initialMoveY,
        duration: 0.01,
        beforeSetup: function(effect) {
            effect.element.hide().makeClipping().makePositioned();
        },
        afterFinishInternal: function(effect) {
            new Effect.Parallel([new Effect.Opacity(effect.element, {
                sync: true,
                to: 1.0,
                from: 0.0,
                transition: options.opacityTransition
            }), new Effect.Move(effect.element, {
                x: moveX,
                y: moveY,
                sync: true,
                transition: options.moveTransition
            }), new Effect.Scale(effect.element, 100, {
                scaleMode: {
                    originalHeight: dims.height,
                    originalWidth: dims.width
                },
                sync: true,
                scaleFrom: window.opera ? 1 : 0,
                transition: options.scaleTransition,
                restoreAfterFinish: true
            })], Object.extend({
                beforeSetup: function(effect) {
                    effect.effects[0].element.setStyle({
                        height: '0px'
                    }).show();
                },
                afterFinishInternal: function(effect) {
                    effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);
                }
            }, options))
        }
    });
};
Effect.Shrink = function(element) {
    element = $(element);
    var options = Object.extend({
        direction: 'center',
        moveTransition: Effect.Transitions.sinoidal,
        scaleTransition: Effect.Transitions.sinoidal,
        opacityTransition: Effect.Transitions.none
    }, arguments[1] || {});
    var oldStyle = {
        top: element.style.top,
        left: element.style.left,
        height: element.style.height,
        width: element.style.width,
        opacity: element.getInlineOpacity()
    };
    var dims = element.getDimensions();
    var moveX, moveY;
    switch (options.direction) {
    case 'top-left':
        moveX = moveY = 0;
        break;
    case 'top-right':
        moveX = dims.width;
        moveY = 0;
        break;
    case 'bottom-left':
        moveX = 0;
        moveY = dims.height;
        break;
    case 'bottom-right':
        moveX = dims.width;
        moveY = dims.height;
        break;
    case 'center':
        moveX = dims.width / 2;
        moveY = dims.height / 2;
        break;
    }
    return new Effect.Parallel([new Effect.Opacity(element, {
        sync: true,
        to: 0.0,
        from: 1.0,
        transition: options.opacityTransition
    }), new Effect.Scale(element, window.opera ? 1 : 0, {
        sync: true,
        transition: options.scaleTransition,
        restoreAfterFinish: true
    }), new Effect.Move(element, {
        x: moveX,
        y: moveY,
        sync: true,
        transition: options.moveTransition
    })], Object.extend({
        beforeStartInternal: function(effect) {
            effect.effects[0].element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
            effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle);
        }
    }, options));
};
Effect.Pulsate = function(element) {
    element = $(element);
    var options = arguments[1] || {};
    var oldOpacity = element.getInlineOpacity();
    var transition = options.transition || Effect.Transitions.sinoidal;
    var reverser = function(pos) {
        return transition(1 - Effect.Transitions.pulse(pos, options.pulses))
    };
    reverser.bind(transition);
    return new Effect.Opacity(element, Object.extend(Object.extend({
        duration: 2.0,
        from: 0,
        afterFinishInternal: function(effect) {
            effect.element.setStyle({
                opacity: oldOpacity
            });
        }
    }, options), {
        transition: reverser
    }));
};
Effect.Fold = function(element) {
    element = $(element);
    var oldStyle = {
        top: element.style.top,
        left: element.style.left,
        width: element.style.width,
        height: element.style.height
    };
    element.makeClipping();
    return new Effect.Scale(element, 5, Object.extend({
        scaleContent: false,
        scaleX: false,
        afterFinishInternal: function(effect) {
            new Effect.Scale(element, 1, {
                scaleContent: false,
                scaleY: false,
                afterFinishInternal: function(effect) {
                    effect.element.hide().undoClipping().setStyle(oldStyle);
                }
            });
        }
    }, arguments[1] || {}));
};
Effect.Morph = Class.create(Effect.Base, {
    initialize: function(element) {
        this.element = $(element);
        if (!this.element) throw (Effect._elementDoesNotExistError);
        var options = Object.extend({
            style: {}
        }, arguments[1] || {});
        if (!Object.isString(options.style)) this.style = $H(options.style);
        else {
            if (options.style.include(':')) this.style = options.style.parseStyle();
            else {
                this.element.addClassName(options.style);
                this.style = $H(this.element.getStyles());
                this.element.removeClassName(options.style);
                var css = this.element.getStyles();
                this.style = this.style.reject(function(style) {
                    return style.value == css[style.key];
                });
                options.afterFinishInternal = function(effect) {
                    effect.element.addClassName(effect.options.style);
                    effect.transforms.each(function(transform) {
                        effect.element.style[transform.style] = '';
                    });
                }
            }
        }
        this.start(options);
    },
    setup: function() {
        function parseColor(color) {
            if (!color || ['rgba(0, 0, 0, 0)', 'transparent'].include(color)) color = '#ffffff';
            color = color.parseColor();
            return $R(0, 2).map(function(i) {
                return parseInt(color.slice(i * 2 + 1, i * 2 + 3), 16)
            });
        }
        this.transforms = this.style.map(function(pair) {
            var property = pair[0],
                value = pair[1],
                unit = null;
            if (value.parseColor('#zzzzzz') != '#zzzzzz') {
                value = value.parseColor();
                unit = 'color';
            } else if (property == 'opacity') {
                value = parseFloat(value);
                if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout)) this.element.setStyle({
                    zoom: 1
                });
            } else if (Element.CSS_LENGTH.test(value)) {
                var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
                value = parseFloat(components[1]);
                unit = (components.length == 3) ? components[2] : null;
            }
            var originalValue = this.element.getStyle(property);
            return {
                style: property.camelize(),
                originalValue: unit == 'color' ? parseColor(originalValue) : parseFloat(originalValue || 0),
                targetValue: unit == 'color' ? parseColor(value) : value,
                unit: unit
            };
        }.bind(this)).reject(function(transform) {
            return ((transform.originalValue == transform.targetValue) || (transform.unit != 'color' && (isNaN(transform.originalValue) || isNaN(transform.targetValue))))
        });
    },
    update: function(position) {
        var style = {},
            transform, i = this.transforms.length;
        while (i--)
        style[(transform = this.transforms[i]).style] = transform.unit == 'color' ? '#' + (Math.round(transform.originalValue[0] + (transform.targetValue[0] - transform.originalValue[0]) * position)).toColorPart() + (Math.round(transform.originalValue[1] + (transform.targetValue[1] - transform.originalValue[1]) * position)).toColorPart() + (Math.round(transform.originalValue[2] + (transform.targetValue[2] - transform.originalValue[2]) * position)).toColorPart() : (transform.originalValue + (transform.targetValue - transform.originalValue) * position).toFixed(3) + (transform.unit === null ? '' : transform.unit);
        this.element.setStyle(style, true);
    }
});
Effect.Transform = Class.create({
    initialize: function(tracks) {
        this.tracks = [];
        this.options = arguments[1] || {};
        this.addTracks(tracks);
    },
    addTracks: function(tracks) {
        tracks.each(function(track) {
            track = $H(track);
            var data = track.values().first();
            this.tracks.push($H({
                ids: track.keys().first(),
                effect: Effect.Morph,
                options: {
                    style: data
                }
            }));
        }.bind(this));
        return this;
    },
    play: function() {
        return new Effect.Parallel(this.tracks.map(function(track) {
            var ids = track.get('ids'),
                effect = track.get('effect'),
                options = track.get('options');
            var elements = [$(ids) || $$(ids)].flatten();
            return elements.map(function(e) {
                return new effect(e, Object.extend({
                    sync: true
                }, options))
            });
        }).flatten(), this.options);
    }
});
Element.CSS_PROPERTIES = $w('backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' + 'borderRightColor borderRightStyle borderRightWidth borderSpacing ' + 'borderTopColor borderTopStyle borderTopWidth bottom clip color ' + 'fontSize fontWeight height left letterSpacing lineHeight ' + 'marginBottom marginLeft marginRight marginTop markerOffset maxHeight ' + 'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' + 'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' + 'right textIndent top width wordSpacing zIndex');
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;
String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function() {
    var style, styleRules = $H();
    if (Prototype.Browser.WebKit) style = new Element('div', {
        style: this
    }).style;
    else {
        String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
        style = String.__parseStyleElement.childNodes[0].style;
    }
    Element.CSS_PROPERTIES.each(function(property) {
        if (style[property]) styleRules.set(property, style[property]);
    });
    if (Prototype.Browser.IE && this.include('opacity')) styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);
    return styleRules;
};
if (document.defaultView && document.defaultView.getComputedStyle) {
    Element.getStyles = function(element) {
        var css = document.defaultView.getComputedStyle($(element), null);
        return Element.CSS_PROPERTIES.inject({}, function(styles, property) {
            styles[property] = css[property];
            return styles;
        });
    };
} else {
    Element.getStyles = function(element) {
        element = $(element);
        var css = element.currentStyle,
            styles;
        styles = Element.CSS_PROPERTIES.inject({}, function(results, property) {
            results[property] = css[property];
            return results;
        });
        if (!styles.opacity) styles.opacity = element.getOpacity();
        return styles;
    };
};
Effect.Methods = {
    morph: function(element, style) {
        element = $(element);
        new Effect.Morph(element, Object.extend({
            style: style
        }, arguments[2] || {}));
        return element;
    },
    visualEffect: function(element, effect, options) {
        element = $(element)
        var s = effect.dasherize().camelize(),
            klass = s.charAt(0).toUpperCase() + s.substring(1);
        new Effect[klass](element, options);
        return element;
    },
    highlight: function(element, options) {
        element = $(element);
        new Effect.Highlight(element, options);
        return element;
    }
};
$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown ' + 'pulsate shake puff squish switchOff dropOut').each(function(effect) {
    Effect.Methods[effect] = function(element, options) {
        element = $(element);
        Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
        return element;
    }
});
$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(function(f) {
    Effect.Methods[f] = Element[f];
});
Element.addMethods(Effect.Methods);
var Builder = {
    NODEMAP: {
        AREA: 'map',
        CAPTION: 'table',
        COL: 'table',
        COLGROUP: 'table',
        LEGEND: 'fieldset',
        OPTGROUP: 'select',
        OPTION: 'select',
        PARAM: 'object',
        TBODY: 'table',
        TD: 'table',
        TFOOT: 'table',
        TH: 'table',
        THEAD: 'table',
        TR: 'table'
    },
    node: function(elementName) {
        elementName = elementName.toUpperCase();
        var parentTag = this.NODEMAP[elementName] || 'div';
        var parentElement = document.createElement(parentTag);
        try {
            parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
        } catch (e) {}
        var element = parentElement.firstChild || null;
        if (element && (element.tagName.toUpperCase() != elementName)) element = element.getElementsByTagName(elementName)[0];
        if (!element) element = document.createElement(elementName);
        if (!element) return;
        if (arguments[1]) if (this._isStringOrNumber(arguments[1]) || (arguments[1] instanceof Array) || arguments[1].tagName) {
            this._children(element, arguments[1]);
        } else {
            var attrs = this._attributes(arguments[1]);
            if (attrs.length) {
                try {
                    parentElement.innerHTML = "<" + elementName + " " + attrs + "></" + elementName + ">";
                } catch (e) {}
                element = parentElement.firstChild || null;
                if (!element) {
                    element = document.createElement(elementName);
                    for (attr in arguments[1])
                    element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
                }
                if (element.tagName.toUpperCase() != elementName) element = parentElement.getElementsByTagName(elementName)[0];
            }
        }
        if (arguments[2]) this._children(element, arguments[2]);
        return element;
    },
    _text: function(text) {
        return document.createTextNode(text);
    },
    ATTR_MAP: {
        'className': 'class',
        'htmlFor': 'for'
    },
    _attributes: function(attributes) {
        var attrs = [];
        for (attribute in attributes)
        attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) + '="' + attributes[attribute].toString().escapeHTML().gsub(/"/, '&quot;') + '"');
        return attrs.join(" ");
    },
    _children: function(element, children) {
        if (children.tagName) {
            element.appendChild(children);
            return;
        }
        if (typeof children == 'object') {
            children.flatten().each(function(e) {
                if (typeof e == 'object') element.appendChild(e)
                else if (Builder._isStringOrNumber(e)) element.appendChild(Builder._text(e));
            });
        } else if (Builder._isStringOrNumber(children)) element.appendChild(Builder._text(children));
    },
    _isStringOrNumber: function(param) {
        return (typeof param == 'string' || typeof param == 'number');
    },
    build: function(html) {
        var element = this.node('div');
        $(element).update(html.strip());
        return element.down();
    },
    dump: function(scope) {
        if (typeof scope != 'object' && typeof scope != 'function') scope = window;
        var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " + "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " + "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX " + "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P " + "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD " + "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);
        tags.each(function(tag) {
            scope[tag] = function() {
                return Builder.node.apply(Builder, [tag].concat($A(arguments)));
            }
        });
    }
}
var Scriptaculous = {
    Version: '1.8.1',
    require: function(libraryName) {
        document.write('<script type="text/javascript" src="' + libraryName + '"><\/script>');
    },
    REQUIRED_PROTOTYPE: '1.6.0',
    load: function() {
        function convertVersionString(versionString) {
            var r = versionString.split('.');
            return parseInt(r[0]) * 100000 + parseInt(r[1]) * 1000 + parseInt(r[2]);
        }
        if ((typeof Prototype == 'undefined') || (typeof Element == 'undefined') || (typeof Element.Methods == 'undefined') || (convertVersionString(Prototype.Version) < convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE))) throw ("script.aculo.us requires the Prototype JavaScript framework >= " + Scriptaculous.REQUIRED_PROTOTYPE);
    }
}
Scriptaculous.load();
Glider = Class.create();
Object.extend(Object.extend(Glider.prototype, Abstract.prototype), {
    initialize: function(wrapper, options) {
        this.scrolling = false;
        this.wrapper = $(wrapper);
        this.scroller = this.wrapper.down('div.scroller');
        this.sections = this.wrapper.getElementsBySelector('div.section');
        this.options = Object.extend({
            controlsEvent: 'click',
            duration: 1.0,
            frequency: 3
        }, options || {});
        this.sections.each(function(section, index) {
            section._index = index;
        });
        this.events = {
            click: this.click.bind(this)
        };
        this.addObservers();
        if (this.options.initialSection) this.moveTo(this.options.initialSection, this.scroller, {
            duration: this.options.duration
        });
        if (this.options.autoGlide) this.start();
    },
    addObservers: function() {
        this.controls = this.wrapper.getElementsBySelector('.controls a');
        this.controls.invoke('observe', this.options.controlsEvent, this.events.click);
    },
    click: function(event) {
        this.stop();
        var element = Event.findElement(event, 'a');
        if (this.scrolling) this.scrolling.cancel();
        this.moveTo(element.href.split("#")[1], this.scroller, {
            duration: this.options.duration
        });
        Event.stop(event);
        this.updateActiveController(element);
    },
    moveTo: function(element, container, options) {
        this.current = $(element);
        Position.prepare();
        var containerOffset = Position.cumulativeOffset(container),
            elementOffset = Position.cumulativeOffset($(element));
        this.scrolling = new Effect.SmoothScroll(container, {
            duration: options.duration,
            x: (elementOffset[0] - containerOffset[0]),
            y: (elementOffset[1] - containerOffset[1])
        });
        return false;
    },
    next: function() {
        if (this.current) {
            var currentIndex = this.current._index;
            var nextIndex = (this.sections.length - 1 == currentIndex) ? 0 : currentIndex + 1;
        } else var nextIndex = 1;
        this.updateActiveController(this.controls[nextIndex]);
        this.moveTo(this.sections[nextIndex], this.scroller, {
            duration: this.options.duration
        });
    },
    previous: function() {
        if (this.current) {
            var currentIndex = this.current._index;
            var prevIndex = (currentIndex == 0) ? this.sections.length - 1 : currentIndex - 1;
        } else var prevIndex = this.sections.length - 1;
        this.updateActiveController(this.controls[prevIndex]);
        this.moveTo(this.sections[prevIndex], this.scroller, {
            duration: this.options.duration
        });
    },
    stop: function() {
        clearTimeout(this.timer);
    },
    start: function() {
        this.periodicallyUpdate();
    },
    periodicallyUpdate: function() {
        if (this.timer != null) {
            clearTimeout(this.timer);
            this.next();
        }
        this.timer = setTimeout(this.periodicallyUpdate.bind(this), this.options.frequency * 1000);
    },
    updateActiveController: function(element) {
        this.controls.each(function(control) {
            if (control == element) {
                control.addClassName("active");
            } else {
                control.removeClassName("active");
            }
        });
    }
});
Effect.SmoothScroll = Class.create();
Object.extend(Object.extend(Effect.SmoothScroll.prototype, Effect.Base.prototype), {
    initialize: function(element) {
        this.element = $(element);
        var options = Object.extend({
            x: 0,
            y: 0,
            mode: 'absolute'
        }, arguments[1] || {});
        this.start(options);
    },
    setup: function() {
        if (this.options.continuous && !this.element._ext) {
            this.element.cleanWhitespace();
            this.element._ext = true;
            this.element.appendChild(this.element.firstChild);
        }
        this.originalLeft = this.element.scrollLeft;
        this.originalTop = this.element.scrollTop;
        if (this.options.mode == 'absolute') {
            this.options.x -= this.originalLeft;
            this.options.y -= this.originalTop;
        }
    },
    update: function(position) {
        this.element.scrollLeft = this.options.x * position + this.originalLeft;
        this.element.scrollTop = this.options.y * position + this.originalTop;
    }
});
if (typeof(Control) == 'undefined') Control = {};
var $proc = function(proc) {
    return typeof(proc) == 'function' ? proc : function() {
        return proc
    };
};
var $value = function(value) {
    return typeof(value) == 'function' ? value() : value;
};
Object.Event = {
    extend: function(object) {
        object._objectEventSetup = function(event_name) {
            this._observers = this._observers || {};
            this._observers[event_name] = this._observers[event_name] || [];
        };
        object.observe = function(event_name, observer) {
            if (typeof(event_name) == 'string' && typeof(observer) != 'undefined') {
                this._objectEventSetup(event_name);
                if (!this._observers[event_name].include(observer)) this._observers[event_name].push(observer);
            } else for (var e in event_name) this.observe(e, event_name[e]);
        };
        object.stopObserving = function(event_name, observer) {
            this._objectEventSetup(event_name);
            if (event_name && observer) this._observers[event_name] = this._observers[event_name].without(observer);
            else if (event_name) this._observers[event_name] = [];
            else this._observers = {};
        };
        object.observeOnce = function(event_name, outer_observer) {
            var inner_observer = function() {
                outer_observer.apply(this, arguments);
                this.stopObserving(event_name, inner_observer);
            }.bind(this);
            this._objectEventSetup(event_name);
            this._observers[event_name].push(inner_observer);
        };
        object.notify = function(event_name) {
            this._objectEventSetup(event_name);
            var collected_return_values = [];
            var args = $A(arguments).slice(1);
            try {
                for (var i = 0; i < this._observers[event_name].length; ++i)
                collected_return_values.push(this._observers[event_name][i].apply(this._observers[event_name][i], args) || null);
            } catch (e) {
                if (e == $break) return false;
                else throw e;
            }
            return collected_return_values;
        };
        if (object.prototype) {
            object.prototype._objectEventSetup = object._objectEventSetup;
            object.prototype.observe = object.observe;
            object.prototype.stopObserving = object.stopObserving;
            object.prototype.observeOnce = object.observeOnce;
            object.prototype.notify = function(event_name) {
                if (object.notify) {
                    var args = $A(arguments).slice(1);
                    args.unshift(this);
                    args.unshift(event_name);
                    object.notify.apply(object, args);
                }
                this._objectEventSetup(event_name);
                var args = $A(arguments).slice(1);
                var collected_return_values = [];
                try {
                    if (this.options && this.options[event_name] && typeof(this.options[event_name]) == 'function') collected_return_values.push(this.options[event_name].apply(this, args) || null);
                    for (var i = 0; i < this._observers[event_name].length; ++i)
                    collected_return_values.push(this._observers[event_name][i].apply(this._observers[event_name][i], args) || null);
                } catch (e) {
                    if (e == $break) return false;
                    else throw e;
                }
                return collected_return_values;
            };
        }
    }
};
Element.addMethods({
    observeOnce: function(element, event_name, outer_callback) {
        var inner_callback = function() {
            outer_callback.apply(this, arguments);
            Element.stopObserving(element, event_name, inner_callback);
        };
        Element.observe(element, event_name, inner_callback);
    }
});
Object.extend(Event, (function() {
    var cache = Event.cache;

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

    function getDOMEventName(eventName) {
        if (eventName && eventName.include(':')) return "dataavailable";
        if (!Prototype.Browser.IE) {
            eventName = {
                mouseenter: 'mouseover',
                mouseleave: 'mouseout'
            }[eventName] || eventName;
        }
        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);
        };
        if (!(Prototype.Browser.IE) && ['mouseenter', 'mouseleave'].include(eventName)) {
            wrapper = wrapper.wrap(function(proceed, event) {
                var rel = event.relatedTarget;
                var cur = event.currentTarget;
                if (rel && rel.nodeType == Node.TEXT_NODE) rel = rel.parentNode;
                if (rel && rel != cur && !rel.descendantOf(cur)) return proceed(event);
            });
        }
        wrapper.handler = handler;
        c.push(wrapper);
        return wrapper;
    }

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

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

    function destroyCache() {
        for (var id in cache)
        for (var eventName in cache[id])
        cache[id][eventName] = null;
    }
    if (window.attachEvent) {
        window.attachEvent("onunload", destroyCache);
    }
    return {
        observe: function(element, eventName, handler) {
            element = $(element);
            var name = getDOMEventName(eventName);
            var wrapper = createWrapper(element, eventName, handler);
            if (!wrapper) return element;
            if (element.addEventListener) {
                element.addEventListener(name, wrapper, false);
            } else {
                element.attachEvent("on" + name, wrapper);
            }
            return element;
        },
        stopObserving: function(element, eventName, handler) {
            element = $(element);
            var id = getEventID(element),
                name = getDOMEventName(eventName);
            if (!handler && eventName) {
                getWrappersForEventName(id, eventName).each(function(wrapper) {
                    element.stopObserving(eventName, wrapper.handler);
                });
                return element;
            } else if (!eventName) {
                Object.keys(getCacheForID(id)).each(function(eventName) {
                    element.stopObserving(eventName);
                });
                return element;
            }
            var wrapper = findWrapper(id, eventName, handler);
            if (!wrapper) return element;
            if (element.removeEventListener) {
                element.removeEventListener(name, wrapper, false);
            } else {
                element.detachEvent("on" + name, wrapper);
            }
            destroyWrapper(id, eventName, handler);
            return element;
        },
        fire: function(element, eventName, memo) {
            element = $(element);
            if (element == document && document.createEvent && !element.dispatchEvent) element = document.documentElement;
            var event;
            if (document.createEvent) {
                event = document.createEvent("HTMLEvents");
                event.initEvent("dataavailable", true, true);
            } else {
                event = document.createEventObject();
                event.eventType = "ondataavailable";
            }
            event.eventName = eventName;
            event.memo = memo || {};
            if (document.createEvent) {
                element.dispatchEvent(event);
            } else {
                element.fireEvent(event.eventType, event);
            }
            return Event.extend(event);
        }
    };
})());
Object.extend(Event, Event.Methods);
Element.addMethods({
    fire: Event.fire,
    observe: Event.observe,
    stopObserving: Event.stopObserving
});
Object.extend(document, {
    fire: Element.Methods.fire.methodize(),
    observe: Element.Methods.observe.methodize(),
    stopObserving: Element.Methods.stopObserving.methodize()
});
(function() {
    function wheel(event) {
        var delta;
        if (event.wheelDelta) delta = event.wheelDelta / 120;
        else if (event.detail) delta = -event.detail / 3;
        if (!delta) return;
        var custom_event = event.element().fire('mouse:wheel', {
            delta: delta
        });
        if (custom_event.stopped) {
            event.stop();
            return false;
        }
    }
    document.observe('mousewheel', wheel);
    document.observe('DOMMouseScroll', wheel);
})();
var IframeShim = Class.create({
    initialize: function() {
        this.element = new Element('iframe', {
            style: 'position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);display:none',
            src: 'javascript:void(0);',
            frameborder: 0
        });
        $(document.body).insert(this.element);
    },
    hide: function() {
        this.element.hide();
        return this;
    },
    show: function() {
        this.element.show();
        return this;
    },
    positionUnder: function(element) {
        var element = $(element);
        var offset = element.cumulativeOffset();
        var dimensions = element.getDimensions();
        this.element.setStyle({
            left: offset[0] + 'px',
            top: offset[1] + 'px',
            width: dimensions.width + 'px',
            height: dimensions.height + 'px',
            zIndex: element.getStyle('zIndex') - 1
        }).show();
        return this;
    },
    setBounds: function(bounds) {
        for (prop in bounds)
        bounds[prop] += 'px';
        this.element.setStyle(bounds);
        return this;
    },
    destroy: function() {
        if (this.element) this.element.remove();
        return this;
    }
});
if (typeof(Prototype) == "undefined") throw "Event.Behavior requires Prototype to be loaded.";
if (typeof(Object.Event) == "undefined") throw "Event.Behavior requires Object.Event to be loaded.";
Event.Behavior = {
    addVerbs: function(verbs) {
        for (name in verbs) {
            v = new Event.Behavior.Verb(verbs[name]);
            Event.Behavior.Verbs[name] = v;
            Event.Behavior[name.underscore()] = Event.Behavior[name] = v.getCallbackForStack.bind(v);
        }
    },
    addEvents: function(events) {
        $H(events).each(function(event_type) {
            Event.Behavior.Adjective.prototype[event_type.key.underscore()] = Event.Behavior.Adjective.prototype[event_type.key] = function() {
                this.nextConditionType = 'and';
                this.events.push(event_type.value);
                this.attachObserver(false);
                return this;
            };
        });
    },
    invokeElementMethod: function(element, action, args) {
        if (typeof(element) == 'function') {
            return $A(element()).each(function(e) {
                if (typeof(args[0]) == 'function') {
                    return $A(args[0]).each(function(a) {
                        return $(e)[action].apply($(e), (a ? [a] : []));
                    });
                } else return $(e)[action].apply($(e), args || []);
            });
        } else return $(element)[action].apply($(element), args || []);
    }
};
Event.Behavior.Verbs = $H({});
Event.Behavior.Verb = Class.create();
Object.extend(Event.Behavior.Verb.prototype, {
    originalAction: false,
    execute: false,
    executeOpposite: false,
    target: false,
    initialize: function(action) {
        this.originalAction = action;
        this.execute = function(action, target, argument) {
            return (argument) ? action(target, argument) : action(target);
        }.bind(this, action);
    },
    setOpposite: function(opposite_verb) {
        opposite_action = opposite_verb.originalAction;
        this.executeOpposite = function(opposite_action, target, argument) {
            return (argument) ? opposite_action(target, argument) : opposite_action(target);
        }.bind(this, opposite_action);
    },
    getCallbackForStack: function(argument) {
        return new Event.Behavior.Noun(this, argument);
    }
});
Event.Behavior.addVerbs({
    call: function(callback) {
        callback();
    },
    show: function(element) {
        return Event.Behavior.invokeElementMethod(element, 'show');
    },
    hide: function(element) {
        return Event.Behavior.invokeElementMethod(element, 'hide');
    },
    remove: function(element) {
        return Event.Behavior.invokeElementMethod(element, 'remove');
    },
    setStyle: function(element, styles) {
        return Event.Behavior.invokeElementMethod(element, 'setStyle', [(typeof(styles) == 'function' ? styles() : styles)]);
    },
    addClassName: function(element, class_name) {
        return Event.Behavior.invokeElementMethod(element, 'addClassName', [(typeof(class_name) == 'function' ? class_name() : class_name)]);
    },
    removeClassName: function(element, class_name) {
        return Event.Behavior.invokeElementMethod(element, 'removeClassName', [(typeof(class_name) == 'function' ? class_name() : class_name)]);
    },
    setClassName: function(element, class_name) {
        c = (typeof(class_name) == 'function') ? class_name() : class_name;
        if (typeof(element) == 'function') {
            return $A(element()).each(function(e) {
                $(e).className = c;
            });
        } else return $(element).className = c;
    },
    update: function(content, element) {
        return Event.Behavior.invokeElementMethod(element, 'update', [(typeof(content) == 'function' ? content() : content)]);
    },
    replace: function(content, element) {
        return Event.Behavior.invokeElementMethod(element, 'replace', [(typeof(content) == 'function' ? content() : content)]);
    }
});
Event.Behavior.Verbs.show.setOpposite(Event.Behavior.Verbs.hide);
Event.Behavior.Verbs.hide.setOpposite(Event.Behavior.Verbs.show);
Event.Behavior.Verbs.addClassName.setOpposite(Event.Behavior.Verbs.removeClassName);
Event.Behavior.Verbs.removeClassName.setOpposite(Event.Behavior.Verbs.addClassName);
Event.Behavior.Noun = Class.create();
Object.extend(Event.Behavior.Noun.prototype, {
    verbs: false,
    verb: false,
    argument: false,
    subject: false,
    target: false,
    initialize: function(verb, argument) {
        this.verb = verb;
        this.argument = argument;
    },
    execute: function() {
        return (this.target) ? this.verb.execute(this.target, this.argument) : this.verb.execute(this.argument);
    },
    executeOpposite: function() {
        return (this.target) ? this.verb.executeOpposite(this.target, this.argument) : this.verb.executeOpposite(this.argument);
    },
    when: function(subject) {
        this.subject = subject;
        return new Event.Behavior.Adjective(this);
    },
    getValue: function() {
        return Try.these(function() {
            return $(this.subject).getValue();
        }.bind(this), function() {
            return $(this.subject).options[$(this.subject).options.selectedIndex].value;
        }.bind(this), function() {
            return $(this.subject).value;
        }.bind(this), function() {
            return $(this.subject).innerHTML;
        }.bind(this));
    },
    containsValue: function(match) {
        value = this.getValue();
        if (typeof(match) == 'function') {
            return $A(match()).include(value);
        } else return value.match(match);
    },
    setTarget: function(target) {
        this.target = target;
        return this;
    },
    and: function() {}
});
Event.Behavior.Noun.prototype._with = Event.Behavior.Noun.prototype.setTarget;
Event.Behavior.Noun.prototype.on = Event.Behavior.Noun.prototype.setTarget;
Event.Behavior.Noun.prototype.of = Event.Behavior.Noun.prototype.setTarget;
Event.Behavior.Noun.prototype.to = Event.Behavior.Noun.prototype.setTarget;
Event.Behavior.Noun.prototype.from = Event.Behavior.Noun.prototype.setTarget;
Event.Behavior.Adjective = Class.create();
Object.extend(Event.Behavior.Adjective.prototype, {
    noun: false,
    lastConditionName: '',
    nextConditionType: 'and',
    conditions: $A([]),
    events: $A([]),
    attached: false,
    initialize: function(noun) {
        this.conditions = $A([]);
        this.events = $A([]);
        this.noun = noun;
    },
    attachObserver: function(execute_on_load) {
        if (this.attached) {
            if (execute_on_load) this.execute();
            return;
        }
        this.attached = true;
        if (typeof(this.noun.subject) == 'function') {
            $A(this.noun.subject()).each(function(subject) {
                (this.events.length > 0 ? this.events : $A(['change'])).each(function(event_name) {
                    (subject.observe ? subject : $(subject)).observe(event_name, function() {
                        this.execute();
                    }.bind(this));
                }.bind(this));
            }.bind(this));
        } else {
            (this.events.length > 0 ? this.events : $A(['change'])).each(function(event_name) {
                $(this.noun.subject).observe(event_name, function() {
                    this.execute();
                }.bind(this));
            }.bind(this));
        }
        if (execute_on_load) this.execute();
    },
    execute: function() {
        if (this.match()) return this.noun.execute();
        else if (this.noun.verb.executeOpposite) this.noun.executeOpposite();
    },
    attachCondition: function(callback) {
        this.conditions.push([this.nextConditionType, callback.bind(this)]);
    },
    match: function() {
        if (this.conditions.length == 0) return true;
        else {
            return this.conditions.inject(new Boolean(), function(bool, condition) {
                return (condition[0] == 'and') ? (bool && condition[1]()) : (bool || condition[1]());
            });
        }
    },
    is: function(item) {
        this.lastConditionName = 'is';
        this.attachCondition(function(item) {
            return (typeof(item) == 'function' ? item() : item) == this.noun.getValue();
        }.bind(this, item));
        this.attachObserver(true);
        return this;
    },
    isNot: function(item) {
        this.lastConditionName = 'isNot';
        this.attachCondition(function(item) {
            return (typeof(item) == 'function' ? item() : item) != this.noun.getValue();
        }.bind(this, item));
        this.attachObserver(true);
        return this;
    },
    contains: function(item) {
        this.lastConditionName = 'contains';
        this.attachCondition(function(item) {
            return this.noun.containsValue(item);
        }.bind(this, item));
        this.attachObserver(true);
        return this;
    },
    within: function(item) {
        this.lastConditionName = 'within';
        this.attachCondition(function(item) {}.bind(this, item));
        this.attachObserver(true);
        return this;
    },
    change: function() {
        this.nextConditionType = 'and';
        this.attachObserver(true);
        return this;
    },
    and: function(condition) {
        this.attached = false;
        this.nextConditionType = 'and';
        if (condition) this[this.lastConditionName](condition);
        return this;
    },
    or: function(condition) {
        this.attached = false;
        this.nextConditionType = 'or';
        if (condition) this[this.lastConditionName](condition);
        return this;
    }
});
Event.Behavior.addEvents({
    losesFocus: 'blur',
    gainsFocus: 'focus',
    isClicked: 'click',
    isDoubleClicked: 'dblclick',
    keyPressed: 'keypress'
});
Event.Behavior.Adjective.prototype.is_not = Event.Behavior.Adjective.prototype.isNot;
Event.Behavior.Adjective.prototype.include = Event.Behavior.Adjective.prototype.contains;
Event.Behavior.Adjective.prototype.includes = Event.Behavior.Adjective.prototype.contains;
Event.Behavior.Adjective.prototype.are = Event.Behavior.Adjective.prototype.is;
Event.Behavior.Adjective.prototype.areNot = Event.Behavior.Adjective.prototype.isNot;
Event.Behavior.Adjective.prototype.are_not = Event.Behavior.Adjective.prototype.isNot;
Event.Behavior.Adjective.prototype.changes = Event.Behavior.Adjective.prototype.change;
if (typeof(Prototype) == "undefined") throw "Control.Tabs requires Prototype to be loaded.";
if (typeof(Object.Event) == "undefined") throw "Control.Tabs requires Object.Event to be loaded.";
Control.Tabs = Class.create({
    initialize: function(tab_list_container, options) {
        if (!$(tab_list_container)) throw "Control.Tabs could not find the element: " + tab_list_container;
        this.activeContainer = false;
        this.activeLink = false;
        this.containers = $H({});
        this.links = [];
        Control.Tabs.instances.push(this);
        this.options = {
            beforeChange: Prototype.emptyFunction,
            afterChange: Prototype.emptyFunction,
            hover: false,
            linkSelector: 'li a',
            setClassOnContainer: false,
            activeClassName: 'active',
            defaultTab: 'first',
            autoLinkExternal: true,
            targetRegExp: /#(.+)$/,
            showFunction: Element.show,
            hideFunction: Element.hide
        };
        Object.extend(this.options, options || {});
        (typeof(this.options.linkSelector == 'string') ? $(tab_list_container).select(this.options.linkSelector) : this.options.linkSelector($(tab_list_container))).findAll(function(link) {
            return (/^#/).exec((Prototype.Browser.WebKit ? decodeURIComponent(link.href) : link.href).replace(window.location.href.split('#')[0], ''));
        }).each(function(link) {
            this.addTab(link);
        }.bind(this));
        this.containers.values().each(Element.hide);
        if (this.options.defaultTab == 'first') this.setActiveTab(this.links.first());
        else if (this.options.defaultTab == 'last') this.setActiveTab(this.links.last());
        else this.setActiveTab(this.options.defaultTab);
        var targets = this.options.targetRegExp.exec(window.location);
        if (targets && targets[1]) {
            targets[1].split(',').each(function(target) {
                this.setActiveTab(this.links.find(function(link) {
                    return link.key == target;
                }));
            }.bind(this));
        }
        if (this.options.autoLinkExternal) {
            $A(document.getElementsByTagName('a')).each(function(a) {
                if (!this.links.include(a)) {
                    var clean_href = a.href.replace(window.location.href.split('#')[0], '');
                    if (clean_href.substring(0, 1) == '#') {
                        if (this.containers.keys().include(clean_href.substring(1))) {
                            $(a).observe('click', function(event, clean_href) {
                                this.setActiveTab(clean_href.substring(1));
                            }.bindAsEventListener(this, clean_href));
                        }
                    }
                }
            }.bind(this));
        }
    },
    addTab: function(link) {
        this.links.push(link);
        link.key = link.getAttribute('href').replace(window.location.href.split('#')[0], '').split('/').last().replace(/#/, '');
        var container = $(link.key);
        if (!container) throw "Control.Tabs: #" + link.key + " was not found on the page."
        this.containers.set(link.key, container);
        link[this.options.hover ? 'onmouseover' : 'onclick'] = function(link) {
            if (window.event) Event.stop(window.event);
            this.setActiveTab(link);
            return false;
        }.bind(this, link);
    },
    setActiveTab: function(link) {
        if (!link && typeof(link) == 'undefined') return;
        if (typeof(link) == 'string') {
            this.setActiveTab(this.links.find(function(_link) {
                return _link.key == link;
            }));
        } else if (typeof(link) == 'number') {
            this.setActiveTab(this.links[link]);
        } else {
            if (this.notify('beforeChange', this.activeContainer, this.containers.get(link.key)) === false) return;
            if (this.activeContainer) this.options.hideFunction(this.activeContainer);
            this.links.each(function(item) {
                (this.options.setClassOnContainer ? $(item.parentNode) : item).removeClassName(this.options.activeClassName);
            }.bind(this));
            (this.options.setClassOnContainer ? $(link.parentNode) : link).addClassName(this.options.activeClassName);
            this.activeContainer = this.containers.get(link.key);
            this.activeLink = link;
            this.options.showFunction(this.containers.get(link.key));
            this.notify('afterChange', this.containers.get(link.key));
        }
    },
    next: function() {
        this.links.each(function(link, i) {
            if (this.activeLink == link && this.links[i + 1]) {
                this.setActiveTab(this.links[i + 1]);
                throw $break;
            }
        }.bind(this));
    },
    previous: function() {
        this.links.each(function(link, i) {
            if (this.activeLink == link && this.links[i - 1]) {
                this.setActiveTab(this.links[i - 1]);
                throw $break;
            }
        }.bind(this));
    },
    first: function() {
        this.setActiveTab(this.links.first());
    },
    last: function() {
        this.setActiveTab(this.links.last());
    }
});
Object.extend(Control.Tabs, {
    instances: [],
    findByTabId: function(id) {
        return Control.Tabs.instances.find(function(tab) {
            return tab.links.find(function(link) {
                return link.key == id;
            });
        });
    }
});
Object.Event.extend(Control.Tabs);
this.tablecloth = function() {
    var highlightCols = false;
    var highlightRows = false;
    var selectable = false;
    this.clickAction = function(obj) {};
    var tableover = false;
    this.start = function() {
        var tables = document.getElementsByTagName("table");
        for (var i = 0; i < tables.length; i++) {
            tables[i].onmouseover = function() {
                tableover = true
            };
            tables[i].onmouseout = function() {
                tableover = false
            };
            rows(tables[i]);
        };
    };
    this.rows = function(table) {
        var css = "";
        var tr = table.getElementsByTagName("tr");
        for (var i = 0; i < tr.length; i++) {
            css = (css == "odd") ? "even" : "odd";
            tr[i].className = css;
            var arr = new Array();
            for (var j = 0; j < tr[i].childNodes.length; j++) {
                if (tr[i].childNodes[j].nodeType == 1) arr.push(tr[i].childNodes[j]);
            };
            for (var j = 0; j < arr.length; j++) {
                arr[j].row = i;
                arr[j].col = j;
                if (arr[j].innerHTML == "&nbsp;" || arr[j].innerHTML == "") arr[j].className += " empty";
                arr[j].css = arr[j].className;
                arr[j].onmouseover = function() {
                    over(table, this, this.row, this.col);
                };
                arr[j].onmouseout = function() {
                    out(table, this, this.row, this.col);
                };
                arr[j].onmousedown = function() {
                    down(table, this, this.row, this.col);
                };
                arr[j].onmouseup = function() {
                    up(table, this, this.row, this.col);
                };
                arr[j].onclick = function() {
                    click(table, this, this.row, this.col);
                };
            };
        };
    };
    this.over = function(table, obj, row, col) {
        if (!highlightCols && !highlightRows) obj.className = obj.css + " over";
        if (check1(obj, col)) {
            if (highlightCols) highlightCol(table, obj, col);
            if (highlightRows) highlightRow(table, obj, row);
        };
    };
    this.out = function(table, obj, row, col) {
        if (!highlightCols && !highlightRows) obj.className = obj.css;
        unhighlightCol(table, col);
        unhighlightRow(table, row);
    };
    this.down = function(table, obj, row, col) {
        obj.className = obj.css + " down";
    };
    this.up = function(table, obj, row, col) {
        obj.className = obj.css + " over";
    };
    this.click = function(table, obj, row, col) {
        if (check1) {
            if (selectable) {
                unselect(table);
                if (highlightCols) highlightCol(table, obj, col, true);
                if (highlightRows) highlightRow(table, obj, row, true);
                document.onclick = unselectAll;
            }
        };
        clickAction(obj);
    };
    this.highlightCol = function(table, active, col, sel) {
        var css = (typeof(sel) != "undefined") ? "selected" : "over";
        var tr = table.getElementsByTagName("tr");
        for (var i = 0; i < tr.length; i++) {
            var arr = new Array();
            for (j = 0; j < tr[i].childNodes.length; j++) {
                if (tr[i].childNodes[j].nodeType == 1) arr.push(tr[i].childNodes[j]);
            };
            var obj = arr[col];
            if (check2(active, obj) && check3(obj)) obj.className = obj.css + " " + css;
        };
    };
    this.unhighlightCol = function(table, col) {
        var tr = table.getElementsByTagName("tr");
        for (var i = 0; i < tr.length; i++) {
            var arr = new Array();
            for (j = 0; j < tr[i].childNodes.length; j++) {
                if (tr[i].childNodes[j].nodeType == 1) arr.push(tr[i].childNodes[j]);
            };
            var obj = arr[col];
            if (check3(obj)) obj.className = obj.css;
        };
    };
    this.highlightRow = function(table, active, row, sel) {
        var css = (typeof(sel) != "undefined") ? "selected" : "over";
        var tr = table.getElementsByTagName("tr")[row];
        for (var i = 0; i < tr.childNodes.length; i++) {
            var obj = tr.childNodes[i];
            if (check2(active, obj) && check3(obj)) obj.className = obj.css + " " + css;
        };
    };
    this.unhighlightRow = function(table, row) {
        var tr = table.getElementsByTagName("tr")[row];
        for (var i = 0; i < tr.childNodes.length; i++) {
            var obj = tr.childNodes[i];
            if (check3(obj)) obj.className = obj.css;
        };
    };
    this.unselect = function(table) {
        tr = table.getElementsByTagName("tr")
        for (var i = 0; i < tr.length; i++) {
            for (var j = 0; j < tr[i].childNodes.length; j++) {
                var obj = tr[i].childNodes[j];
                if (obj.className) obj.className = obj.className.replace("selected", "");
            };
        };
    };
    this.unselectAll = function() {
        if (!tableover) {
            tables = document.getElementsByTagName("table");
            for (var i = 0; i < tables.length; i++) {
                unselect(tables[i]);
            };
        };
    };
    this.check1 = function(obj, col) {
        return (!(col == 0 && obj.className.indexOf("empty") != -1));
    }
    this.check2 = function(active, obj) {
        return (!(active.tagName == "TH" && obj.tagName == "TH"));
    };
    this.check3 = function(obj) {
        return (obj.className) ? (obj.className.indexOf("selected") == -1) : true;
    };
    start();
};
window.onload = tablecloth;

function addbookmark(title, url) {
    if (window.sidebar) {
        window.sidebar.addPanel(title, url, "");
    } else if (window.opera && window.print) {
        var elem = document.createElement('a');
        elem.setAttribute('href', url);
        elem.setAttribute('title', title);
        elem.setAttribute('rel', 'sidebar');
        elem.click();
    } else if (document.all) {
        window.external.AddFavorite(url, title);
    }
}