/*  Prototype JavaScript framework, version 1.5.1.1
*  (c) 2005-2007 Sam Stephenson
*
*  Prototype is freely distributable under the terms of an MIT-style license.
*  For details, see the Prototype web site: http://www.prototypejs.org/
*
/*--------------------------------------------------------------------------*/

var Prototype = {
    Version: '1.5.1.1',

    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
    },

    BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
        (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 }
}

var Class = {
    create: function() {
    return function() {
        this.initialize.apply(this, arguments);
    }
    }
}

var Abstract = new Object();

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

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

    toJSON: function(object) {
    var type = typeof object;
    switch(type) {
        case 'undefined':
        case 'function':
        case 'unknown': return;
        case 'boolean': return object.toString();
    }
    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (object.ownerDocument === document) return;
    var results = [];
    for (var property in object) {
        var value = Object.toJSON(object[property]);
        if (value !== undefined)
        results.push(property.toJSON() + ': ' + value);
    }
    return '{' + results.join(', ') + '}';
    },

    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);
    }
});

Function.prototype.bind = function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
    return __method.apply(object, args.concat($A(arguments)));
    }
}

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

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';
    }
});

Date.prototype.toJSON = function() {
    return '"' + this.getFullYear() + '-' +
    (this.getMonth() + 1).toPaddedString(2) + '-' +
    this.getDate().toPaddedString(2) + 'T' +
    this.getHours().toPaddedString(2) + ':' +
    this.getMinutes().toPaddedString(2) + ':' +
    this.getSeconds().toPaddedString(2) + '"';
};

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

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

    return returnValue;
    }
}

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

var PeriodicalExecuter = Class.create();
PeriodicalExecuter.prototype = {
    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);
    },

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

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

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

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

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

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

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

    truncate: function(length, truncation) {
    length = length || 30;
    truncation = truncation === undefined ? '...' : truncation;
    return this.length > length ?
        this.slice(0, length - truncation.length) + truncation : 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 = document.createElement('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 (hash[key].constructor != Array) 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) {
    var result = '';
    for (var i = 0; i < count; i++) result += this;
    return result;
    },

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

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

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

    return camelized;
    },

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

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

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

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

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

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

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

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

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

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

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

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

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

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 (typeof replacement == 'function') 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();
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype = {
    initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern  = pattern || Template.Pattern;
    },

    evaluate: function(object) {
    return this.template.gsub(this.pattern, function(match) {
        var before = match[1];
        if (before == '\\') return match[2];
        return before + String.interpret(object[match[3]]);
    });
    }
}

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

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

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

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

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

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

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

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

    grep: function(pattern, iterator) {
    var results = [];
    this.each(function(value, index) {
        var stringValue = value.toString();
        if (stringValue.match(pattern))
        results.push((iterator || Prototype.K)(value, index));
    })
    return results;
    },

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

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

    inject: function(memo, iterator) {
    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) {
    var result;
    this.each(function(value, index) {
        value = (iterator || Prototype.K)(value, index);
        if (result == undefined || value >= result)
        result = value;
    });
    return result;
    },

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

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

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

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

    sortBy: function(iterator) {
    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 (typeof args.last() == 'function')
        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,
    member:  Enumerable.include,
    entries: Enumerable.toArray
});
var $A = Array.from = function(iterable) {
    if (!iterable) return [];
    if (iterable.toArray) {
    return iterable.toArray();
    } else {
    var results = [];
    for (var i = 0, length = iterable.length; i < length; i++)
        results.push(iterable[i]);
    return results;
    }
}

if (Prototype.Browser.WebKit) {
    $A = Array.from = function(iterable) {
    if (!iterable) return [];
    if (!(typeof iterable == 'function' && iterable == '[object NodeList]') &&
        iterable.toArray) {
        return iterable.toArray();
    } else {
        var results = [];
        for (var i = 0, length = iterable.length; i < length; i++)
        results.push(iterable[i]);
        return results;
    }
    }
}

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(value && value.constructor == Array ?
        value.flatten() : [value]);
    });
    },

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

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

    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;
    });
    },

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

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

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

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

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

function $w(string) {
    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 (arguments[i].constructor == Array) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
            array.push(arguments[i][j]);
        } else {
        array.push(arguments[i]);
        }
    }
    return array;
    }
}
var Hash = function(object) {
    if (object instanceof Hash) this.merge(object);
    else Object.extend(this, object || {});
};

Object.extend(Hash, {
    toQueryString: function(obj) {
    var parts = [];
    parts.add = arguments.callee.addPair;

    this.prototype._each.call(obj, function(pair) {
        if (!pair.key) return;
        var value = pair.value;

        if (value && typeof value == 'object') {
        if (value.constructor == Array) value.each(function(value) {
            parts.add(pair.key, value);
        });
        return;
        }
        parts.add(pair.key, value);
    });

    return parts.join('&');
    },

    toJSON: function(object) {
    var results = [];
    this.prototype._each.call(object, function(pair) {
        var value = Object.toJSON(pair.value);
        if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value);
    });
    return '{' + results.join(', ') + '}';
    }
});

Hash.toQueryString.addPair = function(key, value, prefix) {
    key = encodeURIComponent(key);
    if (value === undefined) this.push(key);
    else this.push(key + '=' + (value == null ? '' : encodeURIComponent(value)));
}

Object.extend(Hash.prototype, Enumerable);
Object.extend(Hash.prototype, {
    _each: function(iterator) {
    for (var key in this) {
        var value = this[key];
        if (value && value == Hash.prototype[key]) continue;

        var pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
    }
    },

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

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

    merge: function(hash) {
    return $H(hash).inject(this, function(mergedHash, pair) {
        mergedHash[pair.key] = pair.value;
        return mergedHash;
    });
    },

    remove: function() {
    var result;
    for(var i = 0, length = arguments.length; i < length; i++) {
        var value = this[arguments[i]];
        if (value !== undefined){
        if (result === undefined) result = value;
        else {
            if (result.constructor != Array) result = [result];
            result.push(value)
        }
        }
        delete this[arguments[i]];
    }
    return result;
    },

    toQueryString: function() {
    return Hash.toQueryString(this);
    },

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

    toJSON: function() {
    return Hash.toJSON(this);
    }
});

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

// Safari iterates over shadowed properties
if (function() {
    var i = 0, Test = function(value) { this.key = value };
    Test.prototype.key = 'foo';
    for (var property in new Test('bar')) i++;
    return i > 1;
}()) Hash.prototype._each = function(iterator) {
    var cache = [];
    for (var key in this) {
    var value = this[key];
    if ((value && value == Hash.prototype[key]) || cache.include(key)) continue;
    cache.push(key);
    var pair = [key, value];
    pair.key = key;
    pair.value = value;
    iterator(pair);
    }
};
ObjectRange = Class.create();
Object.extend(ObjectRange.prototype, Enumerable);
Object.extend(ObjectRange.prototype, {
    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 (typeof responder[callback] == 'function') {
        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 = function() {};
Ajax.Base.prototype = {
    setOptions: function(options) {
    this.options = {
        method:       'post',
        asynchronous: true,
        contentType:  'application/x-www-form-urlencoded',
        encoding:     'UTF-8',
        parameters:   ''
    }
    Object.extend(this.options, options || {});

    this.options.method = this.options.method.toLowerCase();
    if (typeof this.options.parameters == 'string')
        this.options.parameters = this.options.parameters.toQueryParams();
    }
}

Ajax.Request = Class.create();
Ajax.Request.Events =
    ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
    _complete: false,

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

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

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

    this.parameters = params;

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

    try {
        if (this.options.onCreate) this.options.onCreate(this.transport);
        Ajax.Responders.dispatch('onCreate', this, this.transport);

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

        if (this.options.asynchronous)
        setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);

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

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

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

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

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

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

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

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

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

        if (typeof extras.push == 'function')
        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() {
    return !this.transport.status
        || (this.transport.status >= 200 && this.transport.status < 300);
    },

    respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState];
    var transport = this.transport, json = this.evalJSON();

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

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

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

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

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

    evalJSON: function() {
    try {
        var json = this.getHeader('X-JSON');
        return json ? json.evalJSON() : 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.Updater = Class.create();

Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
    initialize: function(container, url, options) {
    this.container = {
        success: (container.success || container),
        failure: (container.failure || (container.success ? null : container))
    }

    this.transport = Ajax.getTransport();
    this.setOptions(options);

    var onComplete = this.options.onComplete || Prototype.emptyFunction;
    this.options.onComplete = (function(transport, param) {
        this.updateContent();
        onComplete(transport, param);
    }).bind(this);

    this.request(url);
    },

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

    if (!this.options.evalScripts) response = response.stripScripts();

    if (receiver = $(receiver)) {
        if (this.options.insertion)
        new this.options.insertion(receiver, response);
        else
        receiver.update(response);
    }

    if (this.success()) {
        if (this.onComplete)
        setTimeout(this.onComplete.bind(this), 10);
    }
    }
});

Ajax.PeriodicalUpdater = Class.create();
Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
    initialize: function(container, url, options) {
    this.setOptions(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(request) {
    if (this.options.decay) {
        this.decay = (request.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

        this.lastText = request.responseText;
    }
    this.timer = setTimeout(this.onTimerEvent.bind(this),
        this.decay * this.frequency * 1000);
    },

    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 (typeof element == 'string')
    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(query.snapshotItem(i));
    return results;
    };

    document.getElementsByClassName = function(className, parentElement) {
    var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";
    return document._getElementsByXPath(q, parentElement);
    }

} else document.getElementsByClassName = function(className, parentElement) {
    var children = ($(parentElement) || document.body).getElementsByTagName('*');
    var elements = [], child, pattern = new RegExp("(^|\\s)" + className + "(\\s|$)");
    for (var i = 0, length = children.length; i < length; i++) {
    child = children[i];
    var elementClassName = child.className;
    if (elementClassName.length == 0) continue;
    if (elementClassName == className || elementClassName.match(pattern))
        elements.push(Element.extend(child));
    }
    return elements;
};

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

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

Element.extend = function(element) {
    var F = Prototype.BrowserFeatures;
    if (!element || !element.tagName || element.nodeType == 3 ||
    element._extended || F.SpecificElementExtensions || element == window)
    return element;

    var methods = {}, tagName = element.tagName, cache = Element.extend.cache,
    T = Element.Methods.ByTag;

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

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

    for (var property in methods) {
    var value = methods[property];
    if (typeof value == 'function' && !(property in element))
        element[property] = cache.findOrStore(value);
    }

    element._extended = Prototype.emptyFunction;
    return element;
};

Element.extend.cache = {
    findOrStore: function(value) {
    return this[value] = this[value] || function() {
        return value.apply(null, [this].concat($A(arguments)));
    }
    }
};

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, html) {
    html = typeof html == 'undefined' ? '' : html.toString();
    $(element).innerHTML = html.stripScripts();
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
    },

    replace: function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    if (element.outerHTML) {
        element.outerHTML = html.stripScripts();
    } else {
        var range = element.ownerDocument.createRange();
        range.selectNodeContents(element);
        element.parentNode.replaceChild(
        range.createContextualFragment(html.stripScripts()), element);
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
    },

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

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

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

    descendants: function(element) {
    return $A($(element).getElementsByTagName('*')).each(Element.extend);
    },

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

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

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

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

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

    match: function(element, selector) {
    if (typeof selector == 'string')
        selector = new Selector(selector);
    return selector.match($(element));
    },

    up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return expression ? Selector.findElement(ancestors, expression, index) :
        ancestors[index || 0];
    },

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

    previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return expression ? Selector.findElement(previousSiblings, expression, index) :
        previousSiblings[index || 0];
    },

    next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return expression ? Selector.findElement(nextSiblings, expression, index) :
        nextSiblings[index || 0];
    },

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

    getElementsByClassName: function(element, className) {
    return document.getElementsByClassName(className, element);
    },

    readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
        if (!element.attributes) return null;
        var t = Element._attributeTranslations;
        if (t.values[name]) return t.values[name](element, name);
        if (t.names[name])  name = t.names[name];
        var attribute = element.attributes[name];
        return attribute ? attribute.nodeValue : null;
    }
    return element.getAttribute(name);
    },

    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 = $(element))) return;
    var elementClassName = element.className;
    if (elementClassName.length == 0) return false;
    if (elementClassName == className ||
        elementClassName.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
        return true;
    return false;
    },

    addClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).add(className);
    return element;
    },

    removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).remove(className);
    return element;
    },

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

    observe: function() {
    Event.observe.apply(Event, arguments);
    return $A(arguments).first();
    },

    stopObserving: function() {
    Event.stopObserving.apply(Event, arguments);
    return $A(arguments).first();
    },

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

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

    descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    while (element = element.parentNode)
        if (element == ancestor) return true;
    return false;
    },

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

    getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value) {
        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, camelized) {
    element = $(element);
    var elementStyle = element.style;

    for (var property in styles)
        if (property == 'opacity') element.setOpacity(styles[property])
        else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
            (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :
            (camelized ? property : property.camelize())] = styles[property];

    return element;
    },

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

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

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

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

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

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

Object.extend(Element.Methods, {
    childOf: Element.Methods.descendantOf,
    childElements: Element.Methods.immediateDescendants
});

if (Prototype.Browser.Opera) {
    Element.Methods._getStyle = Element.Methods.getStyle;
    Element.Methods.getStyle = function(element, style) {
    switch(style) {
        case 'left':
        case 'top':
        case 'right':
        case 'bottom':
        if (Element._getStyle(element, 'position') == 'static') return null;
        default: return Element._getStyle(element, style);
    }
    };
}
else if (Prototype.Browser.IE) {
    Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

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

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

    Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
        style.filter = filter.replace(/alpha\([^\)]*\)/gi,'');
        return element;
    } else if (value < 0.00001) value = 0;
    style.filter = filter.replace(/alpha\([^\)]*\)/gi, '') +
        'alpha(opacity=' + (value * 100) + ')';
    return element;
    };

    // IE is missing .innerHTML support for TABLE-related elements
    Element.Methods.update = function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    var tagName = element.tagName.toUpperCase();
    if (['THEAD','TBODY','TR','TD'].include(tagName)) {
        var div = document.createElement('div');
        switch (tagName) {
        case 'THEAD':
        case 'TBODY':
            div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';
            depth = 2;
            break;
        case 'TR':
            div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';
            depth = 3;
            break;
        case 'TD':
            div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';
            depth = 4;
        }
        $A(element.childNodes).each(function(node) { element.removeChild(node) });
        depth.times(function() { div = div.firstChild });
        $A(div.childNodes).each(function(node) { element.appendChild(node) });
    } else {
        element.innerHTML = html.stripScripts();
    }
    setTimeout(function() { html.evalScripts() }, 10);
    return element;
    }
}
else if (Prototype.Browser.Gecko) {
    Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
        (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
    };
}

Element._attributeTranslations = {
    names: {
    colspan:   "colSpan",
    rowspan:   "rowSpan",
    valign:    "vAlign",
    datetime:  "dateTime",
    accesskey: "accessKey",
    tabindex:  "tabIndex",
    enctype:   "encType",
    maxlength: "maxLength",
    readonly:  "readOnly",
    longdesc:  "longDesc"
    },
    values: {
    _getAttr: function(element, attribute) {
        return element.getAttribute(attribute, 2);
    },
    _flag: function(element, attribute) {
        return $(element).hasAttribute(attribute) ? attribute : null;
    },
    style: function(element) {
        return element.style.cssText.toLowerCase();
    },
    title: function(element) {
        var node = element.getAttributeNode('title');
        return node.specified ? node.nodeValue : null;
    }
    }
};

(function() {
    Object.extend(this, {
    href: this._getAttr,
    src:  this._getAttr,
    type: this._getAttr,
    disabled: this._flag,
    checked:  this._flag,
    readonly: this._flag,
    multiple: this._flag
    });
}).call(Element._attributeTranslations.values);

Element.Methods.Simulated = {
    hasAttribute: function(element, attribute) {
    var t = Element._attributeTranslations, node;
    attribute = t.names[attribute] || attribute;
    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.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 (tagName.constructor == Array) 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;
    var cache = Element.extend.cache;
    for (var property in methods) {
        var value = methods[property];
        if (!onlyIfAbsent || !(property in destination))
        destination[property] = cache.findOrStore(value);
    }
    }

    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 (typeof klass == "undefined") continue;
        copy(T[tag], klass.prototype);
    }
    }

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

var Toggle = { display: Element.toggle };

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

Abstract.Insertion = function(adjacency) {
    this.adjacency = adjacency;
}

Abstract.Insertion.prototype = {
    initialize: function(element, content) {
    this.element = $(element);
    this.content = content.stripScripts();

    if (this.adjacency && this.element.insertAdjacentHTML) {
        try {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
        } catch (e) {
        var tagName = this.element.tagName.toUpperCase();
        if (['TBODY', 'TR'].include(tagName)) {
            this.insertContent(this.contentFromAnonymousTable());
        } else {
            throw e;
        }
        }
    } else {
        this.range = this.element.ownerDocument.createRange();
        if (this.initializeRange) this.initializeRange();
        this.insertContent([this.range.createContextualFragment(this.content)]);
    }

    setTimeout(function() {content.evalScripts()}, 10);
    },

    contentFromAnonymousTable: function() {
    var div = document.createElement('div');
    div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
    return $A(div.childNodes[0].childNodes[0].childNodes);
    }
}

var Insertion = new Object();

Insertion.Before = Class.create();
Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
    initializeRange: function() {
    this.range.setStartBefore(this.element);
    },

    insertContent: function(fragments) {
    fragments.each((function(fragment) {
        this.element.parentNode.insertBefore(fragment, this.element);
    }).bind(this));
    }
});

Insertion.Top = Class.create();
Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
    initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(true);
    },

    insertContent: function(fragments) {
    fragments.reverse(false).each((function(fragment) {
        this.element.insertBefore(fragment, this.element.firstChild);
    }).bind(this));
    }
});

Insertion.Bottom = Class.create();
Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
    initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(this.element);
    },

    insertContent: function(fragments) {
    fragments.each((function(fragment) {
        this.element.appendChild(fragment);
    }).bind(this));
    }
});

Insertion.After = Class.create();
Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
    initializeRange: function() {
    this.range.setStartAfter(this.element);
    },

    insertContent: function(fragments) {
    fragments.each((function(fragment) {
        this.element.parentNode.insertBefore(fragment,
        this.element.nextSibling);
    }).bind(this));
    }
});

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

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);
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
* part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
* license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create();

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

    compileMatcher: function() {
    // Selectors with namespaced attributes can't use the XPath version
    if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression))
        return this.compileXPathMatcher();

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

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

    while (e && le != e && (/\S/).test(e)) {
        le = e;
        for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
            this.matcher.push(typeof c[i] == 'function' ? 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(typeof x[i] == 'function' ? 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) {
    return this.findElements(document).include(element);
    },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    id: function(nodes, root, id, combinator) {
        var targetNode = $(id), h = Selector.handlers;
        if (!nodes && root == document) return targetNode ? [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) {
        var results = [];
        for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
        return results;
    },

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

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

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

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

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

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

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

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

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

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

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

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

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

    findChildElements: function(element, expressions) {
    var exprs = expressions.join(','), expressions = [];
    exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
        expressions.push(m[1].strip());
    });
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
        selector = new Selector(expressions[i].strip());
        h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
    }
});

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

    serializeElements: function(elements, getHash) {
    var data = elements.inject({}, function(result, element) {
        if (!element.disabled && element.name) {
        var key = element.name, value = $(element).getValue();
        if (value != null) {
            if (key in result) {
            if (result[key].constructor != Array) result[key] = [result[key]];
            result[key].push(value);
            }
            else result[key] = value;
        }
        }
        return result;
    });

    return getHash ? data : Hash.toQueryString(data);
    }
};

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

    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) {
    return $(form).getElements().find(function(element) {
        return element.type != 'hidden' && !element.disabled &&
        ['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;
    options.parameters = form.serialize(true);

    if (params) {
        if (typeof params == 'string') params = params.toQueryParams();
        Object.extend(options.parameters, params);
    }

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

    return new Ajax.Request(form.readAttribute('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 Hash.toQueryString(pair);
        }
    }
    return '';
    },

    getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](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) {
    switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
        return Form.Element.Serializers.inputSelector(element);
        default:
        return Form.Element.Serializers.textarea(element);
    }
    },

    inputSelector: function(element) {
    return element.checked ? element.value : null;
    },

    textarea: function(element) {
    return element.value;
    },

    select: function(element) {
    return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    },

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

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

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

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

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

Abstract.TimedObserver = function() {}
Abstract.TimedObserver.prototype = {
    initialize: function(element, frequency, callback) {
    this.frequency = frequency;
    this.element   = $(element);
    this.callback  = callback;

    this.lastValue = this.getValue();
    this.registerCallback();
    },

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

    onTimerEvent: function() {
    var value = this.getValue();
    var changed = ('string' == typeof this.lastValue && 'string' == typeof value
        ? this.lastValue != value : String(this.lastValue) != String(value));
    if (changed) {
        this.callback(this.element, value);
        this.lastValue = value;
    }
    }
}

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

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

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

Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {
    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.bind(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();
Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
    getValue: function() {
    return Form.Element.getValue(this.element);
    }
});

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

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,

    element: function(event) {
    return $(event.target || event.srcElement);
    },

    isLeftClick: function(event) {
    return (((event.which) && (event.which == 1)) ||
            ((event.button) && (event.button == 1)));
    },

    pointerX: function(event) {
    return event.pageX || (event.clientX +
        (document.documentElement.scrollLeft || document.body.scrollLeft));
    },

    pointerY: function(event) {
    return event.pageY || (event.clientY +
        (document.documentElement.scrollTop || document.body.scrollTop));
    },

    stop: function(event) {
    if (event.preventDefault) {
        event.preventDefault();
        event.stopPropagation();
    } else {
        event.returnValue = false;
        event.cancelBubble = true;
    }
    },

    // find the first node with the given tagName, starting from the
    // node the event was triggered on; traverses the DOM upwards
    findElement: function(event, tagName) {
    var element = Event.element(event);
    while (element.parentNode && (!element.tagName ||
        (element.tagName.toUpperCase() != tagName.toUpperCase())))
        element = element.parentNode;
    return element;
    },

    observers: false,

    _observeAndCache: function(element, name, observer, useCapture) {
    if (!this.observers) this.observers = [];
    if (element.addEventListener) {
        this.observers.push([element, name, observer, useCapture]);
        element.addEventListener(name, observer, useCapture);
    } else if (element.attachEvent) {
        this.observers.push([element, name, observer, useCapture]);
        element.attachEvent('on' + name, observer);
    }
    },

    unloadCache: function() {
    if (!Event.observers) return;
    for (var i = 0, length = Event.observers.length; i < length; i++) {
        Event.stopObserving.apply(this, Event.observers[i]);
        Event.observers[i][0] = null;
    }
    Event.observers = false;
    },

    observe: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (Prototype.Browser.WebKit || element.attachEvent))
        name = 'keydown';

    Event._observeAndCache(element, name, observer, useCapture);
    },

    stopObserving: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (Prototype.Browser.WebKit || element.attachEvent))
        name = 'keydown';

    if (element.removeEventListener) {
        element.removeEventListener(name, observer, useCapture);
    } else if (element.detachEvent) {
        try {
        element.detachEvent('on' + name, observer);
        } catch (e) {}
    }
    }
});

/* prevent memory leaks in IE */
if (Prototype.Browser.IE)
    Event.observe(window, 'unload', Event.unloadCache, false);
var Position = {
    // set to true if needed, warning: firefox performance problems
    // NOT neeeded for page scrolling, only if draggable contained in
    // scrollable elements
    includeScrollOffsets: false,

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

    realOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
        valueT += element.scrollTop  || 0;
        valueL += element.scrollLeft || 0;
        element = element.parentNode;
    } while (element);
    return [valueL, valueT];
    },

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

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

    offsetParent: 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;
    },

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

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

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

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

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

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

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

    } while (element = element.offsetParent);

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

    return [valueL, valueT];
    },

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

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

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

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

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

    absolutize: function(element) {
    element = $(element);
    if (element.style.position == 'absolute') return;
    Position.prepare();

    var offsets = Position.positionedOffset(element);
    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';
    },

    relativize: function(element) {
    element = $(element);
    if (element.style.position == 'relative') return;
    Position.prepare();

    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;
    }
}

// Safari returns margins on body which is incorrect if the child is absolutely
// positioned.  For performance reasons, redefine Position.cumulativeOffset for
// KHTML/WebKit only.
if (Prototype.Browser.WebKit) {
    Position.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 [valueL, valueT];
    }
}

Element.addMethods();



// script.aculo.us effects.js v1.7.1_beta2, Sat Apr 28 15:20:12 CEST 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format,  
// returns self (or first argument) if not convertable  
String.prototype.parseColor = function() {  
    var color = '#';
    if(this.slice(0,4) == 'rgb(') {  
    var cols = this.slice(4,this.length-1).split(',');  
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
    } else {  
    if(this.slice(0,1) == '#') {  
        if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
        if(this.length==7) color = this.toLowerCase();  
    }  
    }  
    return(color.length==7 ? color : (arguments[0] || this));  
}

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

Element.collectTextNodes = function(element) {  
    return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
        (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
    }).flatten().join('');
}

Element.collectTextNodesIgnoreClass = function(element, className) {  
    return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
        ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
        Element.collectTextNodesIgnoreClass(node, className) : ''));
    }).flatten().join('');
}

Element.setContentZoom = function(element, percent) {
    element = $(element);  
    element.setStyle({fontSize: (percent/100) + 'em'});   
    if(Prototype.Browser.WebKit) window.scrollBy(0,0);
    return element;
}

Element.getInlineOpacity = function(element){
    return $(element).style.opacity || '';
}

Element.forceRerendering = function(element) {
    try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
    } catch(e) { }
};

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

Array.prototype.call = function() {
    var args = arguments;
    this.each(function(f){ f.apply(this, args) });
}

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

var Effect = {
    _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
    },
    tagifyText: function(element) {
    if(typeof Builder == 'undefined')
        throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
        
    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(
            Builder.node('span',{style: tagifyStyle},
                character == ' ' ? String.fromCharCode(160) : character), 
                child);
        });
        Element.remove(child);
        }
    });
    },
    multiple: function(element, effect) {
    var elements;
    if(((typeof element == 'object') || 
        (typeof element == 'function')) && 
        (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);
    }
};

var Effect2 = Effect; // deprecated

/* ------------- transitions ------------- */

Effect.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 (
        Math.round((pos % (1/pulses)) * pulses) == 0 ? 
            ((pos * pulses * 2) - Math.floor(pos * pulses * 2)) : 
        1 - ((pos * pulses * 2) - Math.floor(pos * pulses * 2))
        );
    },
    none: function(pos) {
    return 0;
    },
    full: function(pos) {
    return 1;
    }
};

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create();
Object.extend(Object.extend(Effect.ScopedQueue.prototype, 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 = (typeof effect.options.queue == 'string') ? 
        effect.options.queue : effect.options.queue.position;
    
    switch(position) {
        case 'front':
        // move unstarted effects after this effect  
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
            });
        break;
        case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
        case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }
    
    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
        this.effects.push(effect);
    
    if(!this.interval)
        this.interval = setInterval(this.loop.bind(this), 15);
    },
    remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if(this.effects.length == 0) {
        clearInterval(this.interval);
        this.interval = null;
    }
    },
    loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++) 
        this.effects[i] && this.effects[i].loop(timePos);
    }
});

Effect.Queues = {
    instances: $H(),
    get: function(queueName) {
    if(typeof queueName != 'string') return queueName;
    
    if(!this.instances[queueName])
        this.instances[queueName] = new Effect.ScopedQueue();
        
    return this.instances[queueName];
    }
}
Effect.Queue = Effect.Queues.get('global');

Effect.DefaultOptions = {
    transition: Effect.Transitions.sinoidal,
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
}

Effect.Base = function() {};
Effect.Base.prototype = {
    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.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(options,'beforeSetup')+
        (this.setup ? 'this.setup();':'')+ 
        codeForEvent(options,'afterSetup')+
        '};if(this.state=="running"){'+
        'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
        'this.position=pos;'+
        codeForEvent(options,'beforeUpdate')+
        (this.update ? 'this.update(pos);':'')+
        codeForEvent(options,'afterUpdate')+
        '}}');
    
    this.event('beforeStart');
    if(!this.options.sync)
        Effect.Queues.get(typeof this.options.queue == 'string' ? 
        '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 = Math.round(pos * this.totalFrames);
        if(frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
        }
    }
    },
    cancel: function() {
    if(!this.options.sync)
        Effect.Queues.get(typeof this.options.queue == 'string' ? 
        '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(typeof this[property] != 'function') data[property] = this[property];
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
    }
}

Effect.Parallel = Class.create();
Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {
    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.Event = Class.create();
Object.extend(Object.extend(Effect.Event.prototype, Effect.Base.prototype), {
    initialize: function() {
    var options = Object.extend({
        duration: 0
    }, arguments[0] || {});
    this.start(options);
    },
    update: Prototype.emptyFunction
});

Effect.Opacity = Class.create();
Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
    initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if(Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
        this.element.setStyle({zoom: 1});
    var options = Object.extend({
        from: this.element.getOpacity() || 0.0,
        to:   1.0
    }, arguments[1] || {});
    this.start(options);
    },
    update: function(position) {
    this.element.setOpacity(position);
    }
});

Effect.Move = Class.create();
Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
    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() {
    // Bug in Opera: Opera returns the "real" position of a static element or
    // relative element that does not have top/left explicitly set.
    // ==> Always set top and left for position relative elements in your stylesheets 
    // (to 0 if you do not need them) 
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if(this.options.mode == 'absolute') {
        // absolute movement, so we need to calc deltaX and deltaY
        this.options.x = this.options.x - this.originalLeft;
        this.options.y = this.options.y - this.originalTop;
    }
    },
    update: function(position) {
    this.element.setStyle({
        left: Math.round(this.options.x  * position + this.originalLeft) + 'px',
        top:  Math.round(this.options.y  * position + this.originalTop)  + 'px'
    });
    }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
    return new Effect.Move(element, 
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
};

Effect.Scale = Class.create();
Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
    initialize: function(element, percent) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
        scaleX: true,
        scaleY: true,
        scaleContent: true,
        scaleFromCenter: false,
        scaleMode: 'box',        // 'box' or 'contents' or {} with provided values
        scaleFrom: 100.0,
        scaleTo:   percent
    }, arguments[2] || {});
    this.start(options);
    },
    setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');
    
    this.originalStyle = {};
    ['top','left','width','height','fontSize'].each( function(k) {
        this.originalStyle[k] = this.element.style[k];
    }.bind(this));
        
    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;
    
    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
        if(fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
        }
    }.bind(this));
    
    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
    
    this.dims = null;
    if(this.options.scaleMode=='box')
        this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if(/^content/.test(this.options.scaleMode))
        this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if(!this.dims)
        this.dims = [this.options.scaleMode.originalHeight,
                    this.options.scaleMode.originalWidth];
    },
    update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if(this.options.scaleContent && this.fontSize)
        this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
    },
    finish: function(position) {
    if(this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
    },
    setDimensions: function(height, width) {
    var d = {};
    if(this.options.scaleX) d.width = Math.round(width) + 'px';
    if(this.options.scaleY) d.height = Math.round(height) + '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();
Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
    initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});
    this.start(options);
    },
    setup: function() {
    // Prevent executing on elements not in the layout flow
    if(this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = {};
    if (!this.options.keepBackgroundImage) {
        this.oldStyle.backgroundImage = this.element.getStyle('background-image');
        this.element.setStyle({backgroundImage: 'none'});
    }
    if(!this.options.endcolor)
        this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if(!this.options.restorecolor)
        this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
    },
    update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
        return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
    },
    finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
        backgroundColor: this.options.restorecolor
    }));
    }
});

Effect.ScrollTo = Class.create();
Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
    initialize: function(element) {
    this.element = $(element);
    this.start(arguments[1] || {});
    },
    setup: function() {
    Position.prepare();
    var offsets = Position.cumulativeOffset(this.element);
    if(this.options.offset) offsets[1] += this.options.offset;
    var max = window.innerHeight ? 
        window.height - window.innerHeight :
        document.body.scrollHeight - 
        (document.documentElement.clientHeight ? 
            document.documentElement.clientHeight : document.body.clientHeight);
    this.scrollStart = Position.deltaY;
    this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
    },
    update: function(position) {
    Position.prepare();
    window.scrollTo(Position.deltaX, 
        this.scrollStart + (position*this.delta));
    }
});

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
    element = $(element);
    var oldOpacity = element.getInlineOpacity();
    var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) { 
    if(effect.options.to!=0) return;
    effect.element.hide().setStyle({opacity: oldOpacity}); 
    }}, arguments[1] || {});
    return new Effect.Opacity(element,options);
}

Effect.Appear = function(element) {
    element = $(element);
    var options = Object.extend({
    from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
    to:   1.0,
    // force Safari to render floated elements properly
    afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
    },
    beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show(); 
    }}, arguments[1] || {});
    return new Effect.Opacity(element,options);
}

Effect.Puff = function(element) {
    element = $(element);
    var oldStyle = { 
    opacity: element.getInlineOpacity(), 
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
    };
    return new Effect.Parallel(
    [ new Effect.Scale(element, 200, 
        { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
    new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
    Object.extend({ duration: 1.0, 
        beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
        },
        afterFinishInternal: function(effect) {
        effect.effects[0].element.hide().setStyle(oldStyle); }
    }, arguments[1] || {})
    );
}

Effect.BlindUp = function(element) {
    element = $(element);
    element.makeClipping();
    return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false, 
        scaleX: false, 
        restoreAfterFinish: true,
        afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
        } 
    }, arguments[1] || {})
    );
}

Effect.BlindDown = function(element) {
    element = $(element);
    var elementDimensions = element.getDimensions();
    return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
        effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },  
    afterFinishInternal: function(effect) {
        effect.element.undoClipping();
    }
    }, arguments[1] || {}));
}

Effect.SwitchOff = function(element) {
    element = $(element);
    var oldOpacity = element.getInlineOpacity();
    return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
        new Effect.Scale(effect.element, 1, { 
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) { 
            effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
            effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
        })
    }
    }, arguments[1] || {}));
}

Effect.DropOut = function(element) {
    element = $(element);
    var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
    return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
        new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
        { duration: 0.5,
        beforeSetup: function(effect) {
            effect.effects[0].element.makePositioned(); 
        },
        afterFinishInternal: function(effect) {
            effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        } 
        }, arguments[1] || {}));
}

Effect.Shake = function(element) {
    element = $(element);
    var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element, 
        { x:  20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
        { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
        { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
        { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
        { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
        { x: -20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
    }}) }}) }}) }}) }}) }});
}

Effect.SlideDown = function(element) {
    element = $(element).cleanWhitespace();
    // SlideDown need to have the content of the element wrapped in a container element with fixed height!
    var oldInnerBottom = element.down().getStyle('bottom');
    var elementDimensions = element.getDimensions();
    return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false, 
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
        effect.element.makePositioned();
        effect.element.down().makePositioned();
        if(window.opera) effect.element.setStyle({top: ''});
        effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },
    afterUpdateInternal: function(effect) {
        effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
    },
    afterFinishInternal: function(effect) {
        effect.element.undoClipping().undoPositioned();
        effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || {})
    );
}

Effect.SlideUp = function(element) {
    element = $(element).cleanWhitespace();
    var oldInnerBottom = element.down().getStyle('bottom');
    return new Effect.Scale(element, window.opera ? 0 : 1,
    Object.extend({ scaleContent: false, 
    scaleX: false, 
    scaleMode: 'box',
    scaleFrom: 100,
    restoreAfterFinish: true,
    beforeStartInternal: 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().setStyle({bottom: oldInnerBottom});
        effect.element.down().undoPositioned();
    }
    }, arguments[1] || {})
    );
}

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
    return new Effect.Scale(element, window.opera ? 1 : 0, { 
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
        effect.element.makeClipping(); 
    },  
    afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping(); 
    }
    });
}

Effect.Grow = function(element) {
    element = $(element);
    var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
    }, arguments[1] || {});
    var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

    var dims = element.getDimensions();    
    var initialMoveX, initialMoveY;
    var moveX, moveY;
    
    switch (options.direction) {
    case 'top-left':
        initialMoveX = initialMoveY = moveX = moveY = 0; 
        break;
    case 'top-right':
        initialMoveX = dims.width;
        initialMoveY = moveY = 0;
        moveX = -dims.width;
        break;
    case 'bottom-left':
        initialMoveX = moveX = 0;
        initialMoveY = dims.height;
        moveY = -dims.height;
        break;
    case 'bottom-right':
        initialMoveX = dims.width;
        initialMoveY = dims.height;
        moveX = -dims.width;
        moveY = -dims.height;
        break;
    case 'center':
        initialMoveX = dims.width / 2;
        initialMoveY = dims.height / 2;
        moveX = -dims.width / 2;
        moveY = -dims.height / 2;
        break;
    }
    
    return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01, 
    beforeSetup: function(effect) {
        effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
        new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
            new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
            new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
            beforeSetup: function(effect) {
                effect.effects[0].element.setStyle({height: '0px'}).show(); 
            },
            afterFinishInternal: function(effect) {
                effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
            }
            }, options)
        )
    }
    });
}

Effect.Shrink = function(element) {
    element = $(element);
    var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
    }, arguments[1] || {});
    var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

    var dims = element.getDimensions();
    var moveX, moveY;
    
    switch (options.direction) {
    case 'top-left':
        moveX = moveY = 0;
        break;
    case 'top-right':
        moveX = dims.width;
        moveY = 0;
        break;
    case 'bottom-left':
        moveX = 0;
        moveY = dims.height;
        break;
    case 'bottom-right':
        moveX = dims.width;
        moveY = dims.height;
        break;
    case 'center':  
        moveX = dims.width / 2;
        moveY = dims.height / 2;
        break;
    }
    
    return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
        new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
        new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({            
        beforeStartInternal: function(effect) {
            effect.effects[0].element.makePositioned().makeClipping(); 
        },
        afterFinishInternal: function(effect) {
            effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
        }, options)
    );
}

Effect.Pulsate = function(element) {
    element = $(element);
    var options    = arguments[1] || {};
    var oldOpacity = element.getInlineOpacity();
    var transition = options.transition || Effect.Transitions.sinoidal;
    var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
    reverser.bind(transition);
    return new Effect.Opacity(element, 
    Object.extend(Object.extend({  duration: 2.0, from: 0,
        afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
}

Effect.Fold = function(element) {
    element = $(element);
    var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
    element.makeClipping();
    return new Effect.Scale(element, 5, Object.extend({   
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, { 
        scaleContent: false, 
        scaleY: false,
        afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
        } });
    }}, arguments[1] || {}));
};

Effect.Morph = Class.create();
Object.extend(Object.extend(Effect.Morph.prototype, Effect.Base.prototype), {
    initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
        style: {}
    }, arguments[1] || {});
    if (typeof options.style == 'string') {
        if(options.style.indexOf(':') == -1) {
        var cssText = '', selector = '.' + options.style;
        $A(document.styleSheets).reverse().each(function(styleSheet) {
            if (styleSheet.cssRules) cssRules = styleSheet.cssRules;
            else if (styleSheet.rules) cssRules = styleSheet.rules;
            $A(cssRules).reverse().each(function(rule) {
            if (selector == rule.selectorText) {
                cssText = rule.style.cssText;
                throw $break;
            }
            });
            if (cssText) throw $break;
        });
        this.style = cssText.parseStyle();
        options.afterFinishInternal = function(effect){
            effect.element.addClassName(effect.options.style);
            effect.transforms.each(function(transform) {
            if(transform.style != 'opacity')
                effect.element.style[transform.style] = '';
            });
        }
        } else this.style = options.style.parseStyle();
    } else this.style = $H(options.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 + Math.round(
            ((transform.targetValue - transform.originalValue) * position) * 1000)/1000 + transform.unit;
    this.element.setStyle(style, true);
    }
});

Effect.Transform = Class.create();
Object.extend(Effect.Transform.prototype, {
    initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || {};
    this.addTracks(tracks);
    },
    addTracks: function(tracks){
    tracks.each(function(track){
        var data = $H(track).values().first();
        this.tracks.push($H({
        ids:     $H(track).keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
        }));
    }.bind(this));
    return this;
    },
    play: function(){
    return new Effect.Parallel(
        this.tracks.map(function(track){
        var elements = [$(track.ids) || $$(track.ids)].flatten();
        return elements.map(function(e){ return new track.effect(e, Object.extend({ sync:true }, track.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.prototype.parseStyle = function(){
    var element = document.createElement('div');
    element.innerHTML = '<div style="' + this + '"></div>';
    var style = element.childNodes[0].style, styleRules = $H();
    
    Element.CSS_PROPERTIES.each(function(property){
    if(style[property]) styleRules[property] = style[property]; 
    });
    if(Prototype.Browser.IE && this.indexOf('opacity') > -1) {
    styleRules.opacity = this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];
    }
    return styleRules;
};

Element.morph = function(element, style) {
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || {}));
    return element;
};

['getInlineOpacity','forceRerendering','setContentZoom',
'collectTextNodes','collectTextNodesIgnoreClass','morph'].each( 
    function(f) { Element.Methods[f] = Element[f]; }
);

Element.Methods.visualEffect = function(element, effect, options) {
    s = effect.dasherize().camelize();
    effect_class = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[effect_class](element, options);
    return $(element);
};

Element.addMethods();




// script.aculo.us scriptaculous.js v1.7.1_beta2, Sat Apr 28 15:20:12 CEST 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// 
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Scriptaculous = {
    Version: '1.7.1_beta2',
    require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
    },
    REQUIRED_PROTOTYPE: '1.5.1',
    load: function() {
    function convertVersionString(versionString){
        var r = versionString.split('.');
        return parseInt(r[0])*100000 + parseInt(r[1])*1000 + parseInt(r[2]);
    }

    if((typeof Prototype=='undefined') || 
        (typeof Element == 'undefined') || 
        (typeof Element.Methods=='undefined') ||
        (convertVersionString(Prototype.Version) < 
        convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
        throw("script.aculo.us requires the Prototype JavaScript framework >= " +
        Scriptaculous.REQUIRED_PROTOTYPE);
    
    $A(document.getElementsByTagName("script")).findAll( function(s) {
        return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/))
    }).each( function(s) {
        var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,'');
        var includes = s.src.match(/\?.*load=([a-z,]*)/);
        (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each(
        function(include) { Scriptaculous.require(path+include+'.js') });
    });
    }
}

Scriptaculous.load();




// lightwindow.js v2.0
//
// Copyright (c) 2007 stickmanlabs
// Author: Kevin P Miller | http://www.stickmanlabs.com
// 
// LightWindow is freely distributable under the terms of an MIT-style license.
//
// I don't care what you think about the file size...
//   Be a pro: 
//	    http://www.thinkvitamin.com/features/webapps/serving-javascript-fast
//      http://rakaz.nl/item/make_your_pages_load_faster_by_combining_and_compressing_javascript_and_css_files
//

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

if(typeof Effect == 'undefined')
    throw("lightwindow.js requires including script.aculo.us' effects.js library!");

// This will stop image flickering in IE6 when elements with images are moved
try {
    document.execCommand("BackgroundImageCache", false, true);
} catch(e) {}

var lightwindow = Class.create();	
lightwindow.prototype = {
    //
    //	Setup Variables
    //
    element : null,
    contentToFetch : null,
    windowActive : false,
    dataEffects : [],
    dimensions : {
        cruft : null,
        container : null,
        viewport : {
            height : null,
            width : null,
            offsetTop : null,
            offsetLeft : null
        }
    },
    pagePosition : {
        x : 0,
        y : 0
    },
    pageDimensions : {
        width : null,
        height : null
    },
    preloadImage : [],
    preloadedImage : [],
    galleries : [],
    resizeTo : {
        height : null,
        heightPercent : null,
        width : null,
        widthPercent : null,
        fixedTop : null,
        fixedLeft : null
    },
    scrollbarOffset : 18,
    navigationObservers : {
        previous : null,
        next : null
    },
    containerChange : {
        height : 0,
        width : 0
    },
    activeGallery : false,
    galleryLocation : {
        current : 0,
        total : 0
    },
    //
    //	Initialize the lightwindow.
    //
    initialize : function(options) {
        this.options = Object.extend({
            resizeSpeed : 8,
            contentOffset : {
                height : 20,
                width : 20
            },
            dimensions : {
                image : {height : 250, width : 250},
                page : {height : 250, width : 250},
                inline : {height : 250, width : 250},
                media : {height : 250, width : 250},
                external : {height : 250, width : 250},
                titleHeight : 25
            },
            classNames : {	
                standard : 'lightwindow',
                action : 'lightwindow_action'
            },
            fileTypes : {
                page : ['asp', 'aspx', 'cgi', 'cfm', 'htm', 'html', 'pl', 'php4', 'php3', 'php', 'php5', 'phtml', 'rhtml', 'shtml', 'txt', 'vbs', 'rb'],
                media : ['aif', 'aiff', 'asf', 'avi', 'divx', 'm1v', 'm2a', 'm2v', 'm3u', 'mid', 'midi', 'mov', 'moov', 'movie', 'mp2', 'mp3', 'mpa', 'mpa', 'mpe', 'mpeg', 'mpg', 'mpg', 'mpga', 'pps', 'qt', 'rm', 'ram', 'swf', 'viv', 'vivo', 'wav'],
                image : ['bmp', 'gif', 'jpg', 'png', 'tiff']
            },
            mimeTypes : {
                avi : 'video/avi',
                aif : 'audio/aiff',
                aiff : 'audio/aiff',
                gif : 'image/gif',
                bmp : 'image/bmp',
                jpeg : 'image/jpeg',
                m1v : 'video/mpeg',
                m2a : 'audio/mpeg',
                m2v : 'video/mpeg',
                m3u : 'audio/x-mpequrl',
                mid : 'audio/x-midi',
                midi : 'audio/x-midi',
                mjpg : 'video/x-motion-jpeg',
                moov : 'video/quicktime',
                mov : 'video/quicktime',
                movie : 'video/x-sgi-movie',
                mp2 : 'audio/mpeg',
                mp3 : 'audio/mpeg3',
                mpa : 'audio/mpeg',
                mpa : 'video/mpeg',
                mpe : 'video/mpeg',
                mpeg : 'video/mpeg',
                mpg : 'audio/mpeg',
                mpg : 'video/mpeg',
                mpga : 'audio/mpeg',
                pdf : 'application/pdf',
                png : 'image/png',
                pps : 'application/mspowerpoint',
                qt : 'video/quicktime',
                ram : 'audio/x-pn-realaudio-plugin',
                rm : 'application/vnd.rn-realmedia',
                swf	: 'application/x-shockwave-flash',
                tiff : 'image/tiff',
                viv : 'video/vivo',
                vivo : 'video/vivo',
                wav : 'audio/wav',
                wmv : 'application/x-mplayer2'			
            },	
            classids : {
                mov : 'clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B',
                swf : 'clsid:D27CDB6E-AE6D-11cf-96B8-444553540000',
                wmv : 'clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6'
            },
            codebases : {
                mov : 'http://www.apple.com/qtactivex/qtplugin.cab#version=6,0,2,0',
                swf : 'http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0',
                wmv : 'http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,5,715'
            },	
            viewportPadding : 10,
            EOLASFix : 'swf,wmv,fla,flv',
            overlay : {
                opacity : 0.7,
                image : '/images/black.png',
                presetImage : '/images/black-70.png'
            },
            skin : 	{
                main : 	'<div id="lightwindow_container" >'+
                            '<div id="lightwindow_title_bar" >'+
                                '<div id="lightwindow_title_bar_inner" >'+
                                    '<span id="lightwindow_title_bar_title"></span>'+
                                    '<a id="lightwindow_title_bar_close_link" >close</a>'+
                                '</div>'+
                            '</div>'+
                            '<div id="lightwindow_stage" >'+
                                '<div id="lightwindow_contents" >'+
                                '</div>'+
                                '<div id="lightwindow_navigation" >'+
                                    '<a href="#" id="lightwindow_previous" >'+
                                        '<span id="lightwindow_previous_title"></span>'+
                                    '</a>'+
                                    '<a href="#" id="lightwindow_next" >'+
                                        '<span id="lightwindow_next_title"></span>'+
                                    '</a>'+
                                    '<iframe name="lightwindow_navigation_shim" id="lightwindow_navigation_shim" src="javascript:false;" frameBorder="0" scrolling="no"></iframe>'+
                                '</div>'+								
                                '<div id="lightwindow_galleries">'+
                                    '<div id="lightwindow_galleries_tab_container" >'+
                                        '<a href="#" id="lightwindow_galleries_tab" >'+
                                            '<span id="lightwindow_galleries_tab_span" class="up" >Galleries</span>'+
                                        '</a>'+
                                    '</div>'+
                                    '<div id="lightwindow_galleries_list" >'+
                                    '</div>'+
                                '</div>'+
                            '</div>'+
                            '<div id="lightwindow_data_slide" >'+
                                '<div id="lightwindow_data_slide_inner" >'+
                                    '<div id="lightwindow_data_details" >'+
                                        '<div id="lightwindow_data_gallery_container" >'+
                                            '<span id="lightwindow_data_gallery_current"></span>'+
                                            ' of '+
                                            '<span id="lightwindow_data_gallery_total"></span>'+
                                        '</div>'+
                                        '<div id="lightwindow_data_author_container" >'+
                                            'by <span id="lightwindow_data_author"></span>'+
                                        '</div>'+
                                    '</div>'+
                                    '<div id="lightwindow_data_caption" >'+
                                    '</div>'+
                                '</div>'+
                            '</div>'+
                        '</div>',	
                loading : 	'<div id="lightwindow_loading" >'+
                                '<img src="/images/ajax-loading.gif" alt="loading" />'+
                                '<span>Loading or <a href="javascript: myLightWindow.deactivate();">Cancel</a></span>'+
                                '<iframe name="lightwindow_loading_shim" id="lightwindow_loading_shim" src="javascript:false;" frameBorder="0" scrolling="no"></iframe>'+
                            '</div>',
                iframe : 	'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'+
                            '<html xmlns="http://www.w3.org/1999/xhtml">'+
                                '<body>'+
                                    '{body_replace}'+
                                '</body>'+
                            '</html>',
                gallery : {
                    top :		'<div class="lightwindow_galleries_list">'+
                                    '<h1>{gallery_title_replace}</h1>'+
                                    '<ul>',
                    middle : 			'<li>'+
                                            '{gallery_link_replace}'+
                                        '</li>',
                    bottom : 		'</ul>'+
                                '</div>'
                }
            },
            formMethod : 'get',
            hideFlash : false,
            hideGalleryTab : false,
            showTitleBar : true,
            animationHandler : false,
            navigationHandler : false,
            transitionHandler : false,
            finalAnimationHandler : false,
            formHandler : false,
            galleryAnimationHandler : false,
            showGalleryCount : true
        }, options || {});
        this.duration = ((11-this.options.resizeSpeed)*0.15);
        this._setupLinks();
        this._getScroll();
        this._getPageDimensions();
        this._browserDimensions();
        this._addLightWindowMarkup(false);
        this._setupDimensions(); 
        this.buildGalleryList();
    },
    //
    //	Activate the lightwindow.
    //
    activate : function(e, link){		
        // Clear out the window Contents
        this._clearWindowContents(true);
            
        // Add back in out loading panel
        this._addLoadingWindowMarkup();

        // Setup the element properties
        this._setupWindowElements(link);
        
        // Setup everything
        this._getScroll();
        this._browserDimensions();
        this._setupDimensions();
        this._toggleTroubleElements('hidden', false);
        this._displayLightWindow('block', 'hidden');
        this._setStatus(true);
        this._monitorKeyboard(true);
        this._prepareIE(true);
        this._loadWindow();
    },
    //
    //	Turn off the window
    //
    deactivate : function(){
        // The window is not active
        this.windowActive = false;
        
        // There is no longer a gallery active
        this.activeGallery = false;
        if (!this.options.hideGalleryTab) {
            this._handleGalleryAnimation(false);
        }
        
        // Kill the animation
        this.animating = false;
        
        // Clear our element
        this.element = null;
        
        // hide the window.
        this._displayLightWindow('none', 'visible');
        
        // Clear out the window Contents
        this._clearWindowContents(false);
        
        // Stop all animation
        var queue = Effect.Queues.get('lightwindowAnimation').each(function(e){e.cancel();});
        
        // Undo the setup
        this._prepareIE(false);
        this._setupDimensions();
        this._toggleTroubleElements('visible', false);	
        this._monitorKeyboard(false);	
    },
    //
    //  Initialize specific window
    //
    createWindow : function(element, attributes) {
        this._processLink($(element));
    },
    //
    //  Open a Window from a hash of attributes
    //
    activateWindow : function(options) {
        this.element = Object.extend({
            href : null,
            title : null,
            author : null,
            caption : null,
            rel : null,
            top : null,
            left : null,
            type : null,
            showImages : null,
            height : null,
            width : null,
            loadingAnimation : null,
            iframeEmbed : null,
            form : null
        }, options || {});
        
        // Set the window type
        this.contentToFetch = this.element.href;
        this.windowType = this.element.type ? this.element.type : this._fileType(this.element.href);	
        
        // Clear out the window Contents
        this._clearWindowContents(true);
            
        // Add back in out loading panel
        this._addLoadingWindowMarkup();
        
        // Setup everything
        this._getScroll();
        this._browserDimensions();
        this._setupDimensions();
        this._toggleTroubleElements('hidden', false);
        this._displayLightWindow('block', 'hidden');
        this._setStatus(true);
        this._monitorKeyboard(true);
        this._prepareIE(true);
        this._loadWindow();
    },
    //
    //  Fire off our Form handler
    //
    submitForm : function(e) {
        if (this.options.formHandler) {
            this.options.formHandler(e);
        } else {
            this._defaultFormHandler(e);
        }
    },
    //
    //	Reload the window with another location
    //
    openWindow : function(element) {
        var element = $(element);

        // The window is active
        this.windowActive = true;
        
        // Clear out the window Contents
        this._clearWindowContents(true);
        
        // Add back in out loading panel
        this._addLoadingWindowMarkup();
        
        // Setup the element properties
        this._setupWindowElements(element);

        this._setStatus(true);
        this._handleTransition();
    },
    //
    //  Navigate the window
    //
    navigateWindow : function(direction) {
        this._handleNavigation(false);
        if (direction == 'previous') {
            this.openWindow(this.navigationObservers.previous);
        } else if (direction == 'next'){ 
            this.openWindow(this.navigationObservers.next);
        }
    },
    //
    //  Build the Gallery List and Load it
    //
    buildGalleryList : function() {
        var output = '';
        var galleryLink;
        for (i in this.galleries) {
            if (typeof this.galleries[i] == 'object') {
                output += (this.options.skin.gallery.top).replace('{gallery_title_replace}', unescape(i));
                for (j in this.galleries[i]) {
                    if (typeof this.galleries[i][j] == 'object') {						
                        galleryLink = '<a href="#" id="lightwindow_gallery_'+i+'_'+j+'" >'+unescape(j)+'</a>';
                        output += (this.options.skin.gallery.middle).replace('{gallery_link_replace}', galleryLink);
                    }
                }
                output += this.options.skin.gallery.bottom;
            }
        }
        new Insertion.Top('lightwindow_galleries_list', output);
        
        // Attach Events
        for (i in this.galleries) {
            if (typeof this.galleries[i] == 'object') {
                for (j in this.galleries[i]) {
                    if (typeof this.galleries[i][j] == 'object') {
                        Event.observe($('lightwindow_gallery_'+i+'_'+j), 'click', this.openWindow.bind(this, this.galleries[i][j][0]), false);
                        $('lightwindow_gallery_'+i+'_'+j).onclick = function() {return false;};	
                    }
                }
            }
        }
    },
    // 
    //  Set Links Up
    //
    _setupLinks : function() {
        var links = $$('.'+this.options.classNames.standard);
        links.each(function(link) {
            this._processLink(link);
        }.bind(this));	
    },
    //
    //  Process a Link
    //
    _processLink : function(link) {
        if ((this._fileType(link.getAttribute('href')) == 'image' || this._fileType(link.getAttribute('href')) == 'media')) {
            if (gallery = this._getGalleryInfo(link.rel)) {
                if (!this.galleries[gallery[0]]) {
                    this.galleries[gallery[0]] = new Array();
                }
                if (!this.galleries[gallery[0]][gallery[1]]) {
                    this.galleries[gallery[0]][gallery[1]] = new Array();
                }
                this.galleries[gallery[0]][gallery[1]].push(link);
            }
        }
        
        // Take care of our inline content
        var url = link.getAttribute('href');
        if (url.indexOf('?') > -1) {
            url = url.substring(0, url.indexOf('?'));
        }
        
        var container = url.substring(url.indexOf('#')+1);
        if($(container)) {
            $(container).setStyle({
                display : 'none'
            });
        }
        
        Event.observe(link, 'click', this.activate.bindAsEventListener(this, link), false);
        link.onclick = function() {return false;};		
    },
    //
    //	Setup our actions
    //
    _setupActions : function() {
        var links = $$('#lightwindow_container .'+this.options.classNames.action);
        links.each(function(link) {
            Event.observe(link, 'click', this[link.getAttribute('rel')].bindAsEventListener(this, link), false);
            link.onclick = function() {return false;};
        }.bind(this));
    },
    //
    //	Add the markup to the page.
    //
    _addLightWindowMarkup : function(rebuild) {
        var overlay = Element.extend(document.createElement('div'));
        overlay.setAttribute('id', 'lightwindow_overlay');		
        // FF Mac has a problem with putting Flash above a layer without a 100% opacity background, so we need to use a pre-made
        if (Prototype.Browser.Gecko) {
            overlay.setStyle({
                backgroundImage: 'url('+this.options.overlay.presetImage+')',
                backgroundRepeat: 'repeat',
                height: this.pageDimensions.height+'px'
            });			
        } else {
            overlay.setStyle({
                opacity: this.options.overlay.opacity,
                backgroundImage: 'url('+this.options.overlay.image+')',
                backgroundRepeat: 'repeat',
                height: this.pageDimensions.height+'px'
            });
        }
        
        var lw = document.createElement('div');
        lw.setAttribute('id', 'lightwindow');
        lw.innerHTML = this.options.skin.main;
        
        var body = document.getElementsByTagName('body')[0];
        body.appendChild(overlay);
        body.appendChild(lw);	
                
        if ($('lightwindow_title_bar_close_link')) {
            Event.observe('lightwindow_title_bar_close_link', 'click', this.deactivate.bindAsEventListener(this));
            $('lightwindow_title_bar_close_link').onclick = function() {return false;};
        }
            
        Event.observe($('lightwindow_previous'), 'click', this.navigateWindow.bind(this, 'previous'), false);
        $('lightwindow_previous').onclick = function() {return false;};		
        Event.observe($('lightwindow_next'), 'click', this.navigateWindow.bind(this, 'next'), false);
        $('lightwindow_next').onclick = function() {return false;};

        if (!this.options.hideGalleryTab) {
            Event.observe($('lightwindow_galleries_tab'), 'click', this._handleGalleryAnimation.bind(this, true), false);
            $('lightwindow_galleries_tab').onclick = function() {return false;};
        }
        
        // Because we use position absolute, kill the scroll Wheel on animations
        if (Prototype.Browser.IE) {
            Event.observe(document, 'mousewheel', this._stopScrolling.bindAsEventListener(this), false);
        } else {
            Event.observe(window, 'DOMMouseScroll', this._stopScrolling.bindAsEventListener(this), false);
        }
                
        Event.observe(overlay, 'click', this.deactivate.bindAsEventListener(this), false);
        overlay.onclick = function() {return false;};
    },
    //
    //  Add loading window markup
    //
    _addLoadingWindowMarkup : function() {
        $('lightwindow_contents').innerHTML += this.options.skin.loading;
    },
    //
    //  Setup the window elements
    //
    _setupWindowElements : function(link) {
        this.element = link;
        this.element.title = null ? '' : link.getAttribute('title');
        this.element.author = null ? '' : link.getAttribute('author');
        this.element.caption = null ? '' : link.getAttribute('caption');
        this.element.rel = null ? '' : link.getAttribute('rel');
        this.element.params = null ? '' : link.getAttribute('params');

        // Set the window type
        this.contentToFetch = this.element.href;
        this.windowType = this._getParameter('lightwindow_type') ? this._getParameter('lightwindow_type') : this._fileType(this.contentToFetch);	
    },
    //
    //  Clear the window contents out
    //
    _clearWindowContents : function(contents) {
        // If there is an iframe, its got to go
        if ($('lightwindow_iframe')) {
            Element.remove($('lightwindow_iframe'));
        }

        // Stop playing an object if its still around
        if ($('lightwindow_media_primary')) {
            try {
                $('lightwindow_media_primary').Stop();
            } catch(e) {}
            Element.remove($('lightwindow_media_primary'));
        }

        // Stop playing an object if its still around		
        if ($('lightwindow_media_secondary')) {
            try {
                $('lightwindow_media_secondary').Stop();
            } catch(e) {}
            Element.remove($('lightwindow_media_secondary'));
        }
        
        this.activeGallery = false;
        this._handleNavigation(this.activeGallery);
        
        if (contents) {
            // Empty the contents
            $('lightwindow_contents').innerHTML = '';
            
            // Reset the scroll bars
            $('lightwindow_contents').setStyle({
                overflow: 'hidden'
            });		
            
            if (!this.windowActive) {
                $('lightwindow_data_slide_inner').setStyle({
                    display: 'none'
                });

                $('lightwindow_title_bar_title').innerHTML = '';
            }

            // Because of browser differences and to maintain flexible captions we need to reset this height at close
            $('lightwindow_data_slide').setStyle({
                height: 'auto'
            });
        }
        
        this.resizeTo.height = null;
        this.resizeTo.width = null;
    },
    //
    //	Set the status of our animation to keep things from getting clunky
    //
    _setStatus : function(status) {
        this.animating = status;
        if (status) {
            Element.show('lightwindow_loading');
        }
        if (!(/MSIE 6./i.test(navigator.userAgent))) {
            this._fixedWindow(status);
        }
    },
    //
    //  Make this window Fixed
    //
    _fixedWindow : function(status) {
        if (status) {
            if (this.windowActive) {
                this._getScroll();
                $('lightwindow').setStyle({
                    position: 'absolute',
                    top: parseFloat($('lightwindow').getStyle('top'))+this.pagePosition.y+'px',
                    left: parseFloat($('lightwindow').getStyle('left'))+this.pagePosition.x+'px'
                });		
            } else {
                $('lightwindow').setStyle({
                    position: 'absolute'
                });						
            }
        } else {
            if (this.windowActive) {
                this._getScroll();
                $('lightwindow').setStyle({
                    position: 'fixed',
                    top: parseFloat($('lightwindow').getStyle('top'))-this.pagePosition.y+'px',
                    left: parseFloat($('lightwindow').getStyle('left'))-this.pagePosition.x+'px'
                });		
            } else {
                if ($('lightwindow_iframe')) {
                    // Ideally here we would set a 50% value for top and left, but Safari rears it ugly head again and we need to do it by pixels
                    this._browserDimensions();
                }
                $('lightwindow').setStyle({
                    position: 'fixed',
                    top: (parseFloat(this._getParameter('lightwindow_top')) ? parseFloat(this._getParameter('lightwindow_top'))+'px' : this.dimensions.viewport.height/2+'px'),
                    left: (parseFloat(this._getParameter('lightwindow_left')) ? parseFloat(this._getParameter('lightwindow_left'))+'px' : this.dimensions.viewport.width/2+'px')
                });
            }
        }
    },
    //
    //	Prepare the window for IE.
    //
    _prepareIE : function(setup) {
        if (Prototype.Browser.IE) {
            var height, overflowX, overflowY;
            if (setup) { 
                var height = '100%';
            } else {
                var height = 'auto';
            }
            var body = document.getElementsByTagName('body')[0];
            var html = document.getElementsByTagName('html')[0];
            html.style.height = body.style.height = height;
        }
    },
    _stopScrolling : function(e) {
        if (this.animating) {
            if (e.preventDefault) {
                e.preventDefault();
            }
            e.returnValue = false;		
        }
    },
    //
    //	Get the scroll for the page.
    //
    _getScroll : function(){
            if(typeof(window.pageYOffset) == 'number') {
            this.pagePosition.x = window.pageXOffset;
            this.pagePosition.y = window.pageYOffset;
            } else if(document.body && (document.body.scrollLeft || document.body.scrollTop)) {
                this.pagePosition.x = document.body.scrollLeft;
            this.pagePosition.y = document.body.scrollTop;
        } else if(document.documentElement) {
            this.pagePosition.x = document.documentElement.scrollLeft;
            this.pagePosition.y = document.documentElement.scrollTop;
            }
    },
    //
    //	Reset the scroll.
    //
    _setScroll : function(x, y) {
        document.documentElement.scrollLeft = x; 
        document.documentElement.scrollTop = y; 
    },
    //
    //	Hide Selects from the page because of IE.
    //     We could use iframe shims instead here but why add all the extra markup for one browser when this is much easier and cleaner
    //
    _toggleTroubleElements : function(visibility, content){
        
        if (content) {
            var selects = $('lightwindow_contents').getElementsByTagName('select');
        } else {
            var selects = document.getElementsByTagName('select');
        }
        
        for(var i = 0; i < selects.length; i++) {
            selects[i].style.visibility = visibility;
        }
        
        if (!content) {
            if (this.options.hideFlash){
                var objects = document.getElementsByTagName('object');
                for (i = 0; i != objects.length; i++) {
                    objects[i].style.visibility = visibility;
                }
                var embeds = document.getElementsByTagName('embed');
                for (i = 0; i != embeds.length; i++) {
                    embeds[i].style.visibility = visibility;
                }
            }
            var iframes = document.getElementsByTagName('iframe');
            for (i = 0; i != iframes.length; i++) {
                iframes[i].style.visibility = visibility;
            }
        }
    },
    // 
    //  Get the actual page size
    //
    _getPageDimensions : function() {
        var xScroll, yScroll;
        if (window.innerHeight && window.scrollMaxY) {	
            xScroll = document.body.scrollWidth;
            yScroll = window.innerHeight + window.scrollMaxY;
        } else if (document.body.scrollHeight > document.body.offsetHeight){ 
            xScroll = document.body.scrollWidth;
            yScroll = document.body.scrollHeight;
        } else { 
            xScroll = document.body.offsetWidth;
            yScroll = document.body.offsetHeight;
        }

        var windowWidth, windowHeight;
        if (self.innerHeight) {	
            windowWidth = self.innerWidth;
            windowHeight = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { 
            windowWidth = document.documentElement.clientWidth;
            windowHeight = document.documentElement.clientHeight;
        } else if (document.body) { 
            windowWidth = document.body.clientWidth;
            windowHeight = document.body.clientHeight;
        }	

        if(yScroll < windowHeight){
            this.pageDimensions.height = windowHeight;
        } else { 
            this.pageDimensions.height = yScroll;
        }

        if(xScroll < windowWidth){	
            this.pageDimensions.width = windowWidth;
        } else {
            this.pageDimensions.width = xScroll;
        }
    },
    //
    //	Display the lightWindow.
    //
    _displayLightWindow : function(display, visibility) {
        $('lightwindow_overlay').style.display = $('lightwindow').style.display = $('lightwindow_container').style.display = display;	
        $('lightwindow_overlay').style.visibility = $('lightwindow').style.visibility = $('lightwindow_container').style.visibility = visibility;
    },
    //
    //	Setup Dimensions of lightwindow.

    //
    _setupDimensions : function() {

        var originalHeight, originalWidth;
        switch (this.windowType) {
            case 'page' :
                originalHeight = this.options.dimensions.page.height;
                originalWidth = this.options.dimensions.page.width;
                break;

            case 'image' :
                originalHeight = this.options.dimensions.image.height;
                originalWidth = this.options.dimensions.image.width;
                break;
                
            case 'media' :
                originalHeight = this.options.dimensions.media.height;
                originalWidth = this.options.dimensions.media.width;
                break;
            
            case 'external' : 
                originalHeight = this.options.dimensions.external.height;
                originalWidth = this.options.dimensions.external.width;
                break;
                
            case 'inline' :
                originalHeight = this.options.dimensions.inline.height;
                originalWidth = this.options.dimensions.inline.width;
                break;
                
            default :
                originalHeight = this.options.dimensions.page.height;
                originalWidth = this.options.dimensions.page.width;
                break;
                
        }

        var offsetHeight = this._getParameter('lightwindow_top') ? parseFloat(this._getParameter('lightwindow_top'))+this.pagePosition.y : this.dimensions.viewport.height/2+this.pagePosition.y;
        var offsetWidth = this._getParameter('lightwindow_left') ? parseFloat(this._getParameter('lightwindow_left'))+this.pagePosition.x : this.dimensions.viewport.width/2+this.pagePosition.x;
        
        // So if a theme has say shadowed edges, they should be consistant and take care of in the contentOffset
        $('lightwindow').setStyle({
            top: offsetHeight+'px',
            left: offsetWidth+'px'
        });
        
        $('lightwindow_container').setStyle({
            height: originalHeight+'px',
            width: originalWidth+'px',
            left: -(originalWidth/2)+'px',
            top: -(originalHeight/2)+'px'
        });

        $('lightwindow_contents').setStyle({
            height: originalHeight+'px',
            width: originalWidth+'px'
        });
    },
    //
    //	Get the type of file.
    //
    _fileType : function(url) {
        var image = new RegExp("[^\.]\.("+this.options.fileTypes.image.join('|')+")\s*$", "i");
        if (image.test(url)) return 'image';
        if (url.indexOf('#') > -1 && (document.domain == this._getDomain(url))) return 'inline';		
        if (url.indexOf('?') > -1) url = url.substring(0, url.indexOf('?'));
        var type = 'unknown';
        var page = new RegExp("[^\.]\.("+this.options.fileTypes.page.join('|')+")\s*$", "i");
        var media = new RegExp("[^\.]\.("+this.options.fileTypes.media.join('|')+")\s*$", "i");
        if (document.domain != this._getDomain(url)) type = 'external';
            if (media.test(url)) type = 'media';
        if (type == 'external' || type == 'media') return type;
            if (page.test(url) || url.substr((url.length-1), url.length) == '/') type = 'page';
        return type;
    },
    //
    //  Get file Extension
    //
    _fileExtension : function(url) {
        if (url.indexOf('?') > -1) {
            url = url.substring(0, url.indexOf('?'));
        }
        var extenstion = '';
        for (var x = (url.length-1); x > -1; x--) {
            if (url.charAt(x) == '.') {
                return extenstion;
            }
            extenstion = url.charAt(x)+extenstion;
        }
    },
    //
    //	Monitor the keyboard while this lightwindow is up
    //
    _monitorKeyboard : function(status) {
        if (status) document.onkeydown = this._eventKeypress.bind(this); 
        else document.onkeydown = '';
    },
    //
    //  Perform keyboard actions
    //
    _eventKeypress : function(e) {
        if (e == null) {
            var keycode = event.keyCode;
        } else {
            var keycode = e.which;
        }
        
        switch (keycode) { 
            case 27: 
                this.deactivate(); 
                break;
            
            case 13:
                return;
                
            default:
                break;
        }
    
        // Gotta stop those quick fingers
        if (this.animating) {
            return false;
        }
        
        switch (String.fromCharCode(keycode).toLowerCase()) {
            case 'p':
                if (this.navigationObservers.previous) {
                    this.navigateWindow('previous');
                }
                break;
                
            case 'n':
                if (this.navigationObservers.next) {
                    this.navigateWindow('next');
                }
                break;
                
            default:
                break;
        }
    },
    //
    //	Get Gallery Information
    //
    _getGalleryInfo : function(rel) {
        if (!rel) return false;
        if (rel.indexOf('[') > -1) {
            return new Array(escape(rel.substring(0, rel.indexOf('['))), escape(rel.substring(rel.indexOf('[')+1, rel.indexOf(']'))));
        } else {
            return false;
        }
    },
    //
    //	Get the domain from a string.
    //
    _getDomain : function(url) {    
        var leadSlashes = url.indexOf('//');
        var domainStart = leadSlashes+2;
        var withoutResource = url.substring(domainStart, url.length);
        var nextSlash = withoutResource.indexOf('/');
        var domain = withoutResource.substring(0, nextSlash);
        if (domain.indexOf(':') > -1){
            var portColon = domain.indexOf(':');
            domain = domain.substring(0, portColon);
            }
        return domain;
    },
    //
    //	Get the value from the params attribute string.
    //
    _getParameter : function(parameter, parameters) {
        if (!this.element) return false;
        if (parameter == 'lightwindow_top' && this.element.top) {
            return unescape(this.element.top);
        } else if (parameter == 'lightwindow_left' && this.element.left) {
            return unescape(this.element.left);
        } else if (parameter == 'lightwindow_type' && this.element.type) {
            return unescape(this.element.type);
        } else if (parameter == 'lightwindow_show_images' && this.element.showImages) {
            return unescape(this.element.showImages);
        } else if (parameter == 'lightwindow_height' && this.element.height) {
            return unescape(this.element.height);
        } else if (parameter == 'lightwindow_width' && this.element.width) {
            return unescape(this.element.width);
        } else if (parameter == 'lightwindow_loading_animation' && this.element.loadingAnimation) {
            return unescape(this.element.loadingAnimation);
        } else if (parameter == 'lightwindow_iframe_embed' && this.element.iframeEmbed) {
            return unescape(this.element.iframeEmbed);
        } else if (parameter == 'lightwindow_form' && this.element.form) {
            return unescape(this.element.form);
        } else {
            if (!parameters) {
                if (this.element.params) parameters = this.element.params;
                else return;
            }
            var value;
            var parameterArray = parameters.split(',');
            var compareString = parameter+'=';
            var compareLength = compareString.length;
            for (var i = 0; i < parameterArray.length; i++) {
                if (parameterArray[i].substr(0, compareLength) == compareString) {
                    var currentParameter = parameterArray[i].split('=');
                    value = currentParameter[1];
                    break;
                }
            }
            if (!value) return false;
            else return unescape(value);
        }
    },
    //
    //  Get the Browser Viewport Dimensions
    //
    _browserDimensions : function() {
        if (Prototype.Browser.IE) {
            this.dimensions.viewport.height = document.documentElement.clientHeight;
            this.dimensions.viewport.width = document.documentElement.clientWidth;   
        } else {
            this.dimensions.viewport.height = window.innerHeight;
            this.dimensions.viewport.width = document.width || document.body.offsetWidth;
        }
    },
    //
    //  Get the scrollbar offset, I don't like this method but there is really no other way I can find.
    //
    _getScrollerWidth : function() {
        var scrollDiv = Element.extend(document.createElement('div'));
        scrollDiv.setAttribute('id', 'lightwindow_scroll_div');
        scrollDiv.setStyle({
            position: 'absolute',
            top: '-10000px',
            left: '-10000px',
            width: '100px',
            height: '100px',
            overflow: 'hidden'
        });



        var contentDiv = Element.extend(document.createElement('div'));
        contentDiv.setAttribute('id', 'lightwindow_content_scroll_div');
        contentDiv.setStyle({
            width: '100%',
            height: '200px'
        });

        scrollDiv.appendChild(contentDiv);

        var body = document.getElementsByTagName('body')[0];
        body.appendChild(scrollDiv);

        var noScroll = $('lightwindow_content_scroll_div').offsetWidth;
        scrollDiv.style.overflow = 'auto';
        var withScroll = $('lightwindow_content_scroll_div').offsetWidth;

            Element.remove($('lightwindow_scroll_div'));

        this.scrollbarOffset = noScroll-withScroll;
    },
    

    //
    //  Add a param to an object dynamically created
    //
    _addParamToObject : function(name, value, object, id) {
        var param = document.createElement('param');
        param.setAttribute('value', value);
        param.setAttribute('name', name);
        if (id) {
            param.setAttribute('id', id);
        }
        object.appendChild(param);
        return object;
    },
    //
    //  Get the outer HTML of an object CROSS BROWSER
    //
    _outerHTML : function(object) {
        if (Prototype.Browser.IE) {
            return object.outerHTML;
        } else {
            var clone = object.cloneNode(true);
            var cloneDiv = document.createElement('div');
            cloneDiv.appendChild(clone);
            return cloneDiv.innerHTML;
        }
    },
    //
    //  Convert an object to markup
    //
    _convertToMarkup : function(object, closeTag) {
        var markup = this._outerHTML(object).replace('</'+closeTag+'>', '');
        if (Prototype.Browser.IE) {
            for (var i = 0; i < object.childNodes.length; i++){
                markup += this._outerHTML(object.childNodes[i]);
            }
            markup += '</'+closeTag+'>';
        }
        return markup;
    },
    //
    //  Depending what type of browser it is we have to append the object differently... DAMN YOU IE!!
    //
    _appendObject : function(object, closeTag, appendTo) {
        if (Prototype.Browser.IE) {
            appendTo.innerHTML += this._convertToMarkup(object, closeTag);
            
            // Fix the Eolas activate thing but only for specified media, for example doing this to a quicktime film breaks it.
            if (this.options.EOLASFix.indexOf(this._fileType(this.element.href)) > -1) {
                var objectElements = document.getElementsByTagName('object');
                for (var i = 0; i < objectElements.length; i++) {
                    if (objectElements[i].getAttribute("data")) objectElements[i].removeAttribute('data');
                    objectElements[i].outerHTML = objectElements[i].outerHTML;
                    objectElements[i].style.visibility = "visible";
                }
            }
        } else {
            appendTo.appendChild(object);	
        }	
    },
    //
    //  Add in iframe
    //
    _appendIframe : function(scroll) {
        var iframe = document.createElement('iframe');
        iframe.setAttribute('id', 'lightwindow_iframe');
        iframe.setAttribute('name', 'lightwindow_iframe');
        iframe.setAttribute('src', 'about:blank');
        iframe.setAttribute('height', '100%');
        iframe.setAttribute('width', '100%');
        iframe.setAttribute('frameborder', '0');
        iframe.setAttribute('marginwidth', '0');
        iframe.setAttribute('marginheight', '0');
        iframe.setAttribute('scrolling', scroll);	
        
        this._appendObject(iframe, 'iframe', $('lightwindow_contents'));
    },
    //
    //  Write Content to the iframe using the skin
    //
    _writeToIframe : function(content) {
        var template = this.options.skin.iframe;
        template = template.replace('{body_replace}', content); 
        if ($('lightwindow_iframe').contentWindow){
            $('lightwindow_iframe').contentWindow.document.open();
            $('lightwindow_iframe').contentWindow.document.write(template);
            $('lightwindow_iframe').contentWindow.document.close();
        } else {
            $('lightwindow_iframe').contentDocument.open();
            $('lightwindow_iframe').contentDocument.write(template);
            $('lightwindow_iframe').contentDocument.close();
        }
    },
    //
    //  Load the window Information
    //  
    _loadWindow : function() {
        switch (this.windowType) {
            case 'image' :

                var current = 0;
                var images = [];
                this.checkImage = [];
                this.resizeTo.height = this.resizeTo.width = 0;
                this.imageCount = this._getParameter('lightwindow_show_images') ? parseInt(this._getParameter('lightwindow_show_images')) : 1;

                // If there is a gallery get it
                if (gallery = this._getGalleryInfo(this.element.rel)) {	
                    for (current = 0; current < this.galleries[gallery[0]][gallery[1]].length; current++) {
                        if (this.contentToFetch.indexOf(this.galleries[gallery[0]][gallery[1]][current].href) > -1) {
                            break;
                        }
                    }
                    if (this.galleries[gallery[0]][gallery[1]][current-this.imageCount]) {
                        this.navigationObservers.previous = this.galleries[gallery[0]][gallery[1]][current-this.imageCount];
                    } else {
                        this.navigationObservers.previous = false;
                    }
                    if (this.galleries[gallery[0]][gallery[1]][current+this.imageCount]) {
                        this.navigationObservers.next = this.galleries[gallery[0]][gallery[1]][current+this.imageCount];
                    } else {
                        this.navigationObservers.next = false;
                    }
                    
                    this.activeGallery = true;
                } else {
                    this.navigationObservers.previous = false;
                    this.navigationObservers.next = false;					

                    this.activeGallery = false;
                }
                
                for (var i = current; i < (current+this.imageCount); i++) {
        
                    if (gallery && this.galleries[gallery[0]][gallery[1]][i]) {
                        this.contentToFetch = this.galleries[gallery[0]][gallery[1]][i].href;
                        
                        this.galleryLocation = {current: (i+1)/this.imageCount, total: (this.galleries[gallery[0]][gallery[1]].length)/this.imageCount};
                                            
                        if (!this.galleries[gallery[0]][gallery[1]][i+this.imageCount]) {
                            $('lightwindow_next').setStyle({
                                display: 'none'
                            });
                        } else {
                            $('lightwindow_next').setStyle({
                                display: 'block'
                            });
                            $('lightwindow_next_title').innerHTML = this.galleries[gallery[0]][gallery[1]][i+this.imageCount].title;
                        }
                        
                        if (!this.galleries[gallery[0]][gallery[1]][i-this.imageCount]) {
                            $('lightwindow_previous').setStyle({
                                display: 'none'
                            });
                        } else {
                            $('lightwindow_previous').setStyle({
                                display: 'block'
                            });
                            $('lightwindow_previous_title').innerHTML = this.galleries[gallery[0]][gallery[1]][i-this.imageCount].title;
                        }
                    }

                    images[i] = document.createElement('img');
                    images[i].setAttribute('id', 'lightwindow_image_'+i);
                    images[i].setAttribute('border', '0');
                    images[i].setAttribute('src', this.contentToFetch);
                    $('lightwindow_contents').appendChild(images[i]);

                    // We have to do this instead of .onload 
                    this.checkImage[i] = new PeriodicalExecuter(function(i) {
                        if (!(typeof $('lightwindow_image_'+i).naturalWidth != "undefined" && $('lightwindow_image_'+i).naturalWidth == 0)) {
    
                            this.checkImage[i].stop();
    
                            var imageHeight = $('lightwindow_image_'+i).getHeight();
                            if (imageHeight > this.resizeTo.height) {
                                this.resizeTo.height = imageHeight;
                            }
                            this.resizeTo.width += $('lightwindow_image_'+i).getWidth();
                            this.imageCount--;
    
                            $('lightwindow_image_'+i).setStyle({
                                height: '100%'
                            });
    
                            if (this.imageCount == 0) {
                                this._processWindow();
                            }
                        }
                    
                    }.bind(this, i), 1);			
                }


            break;
        
        case 'media' :			
        
            var current = 0;
            this.resizeTo.height = this.resizeTo.width = 0;

            // If there is a gallery get it
            if (gallery = this._getGalleryInfo(this.element.rel)) {	
                for (current = 0; current < this.galleries[gallery[0]][gallery[1]].length; current++) {
                    if (this.contentToFetch.indexOf(this.galleries[gallery[0]][gallery[1]][current].href) > -1) {
                        break;
                    }
                }
                
                if (this.galleries[gallery[0]][gallery[1]][current-1]) {
                    this.navigationObservers.previous = this.galleries[gallery[0]][gallery[1]][current-1];
                } else {
                    this.navigationObservers.previous = false;
                }
                if (this.galleries[gallery[0]][gallery[1]][current+1]) {
                    this.navigationObservers.next = this.galleries[gallery[0]][gallery[1]][current+1];
                } else {
                    this.navigationObservers.next = false;
                }
        
                this.activeGallery = true;
            } else {
                this.navigationObservers.previous = false;
                this.navigationObservers.next = false;
                
                this.activeGallery = false;
            }
        

            if (gallery && this.galleries[gallery[0]][gallery[1]][current]) {
                this.contentToFetch = this.galleries[gallery[0]][gallery[1]][current].href;

                this.galleryLocation = {current: current+1, total: this.galleries[gallery[0]][gallery[1]].length};
                
                if (!this.galleries[gallery[0]][gallery[1]][current+1]) {
                    $('lightwindow_next').setStyle({
                        display: 'none'
                    });
                } else {
                    $('lightwindow_next').setStyle({
                        display: 'block'
                    });
                    $('lightwindow_next_title').innerHTML = this.galleries[gallery[0]][gallery[1]][current+1].title;
                }
                
                if (!this.galleries[gallery[0]][gallery[1]][current-1]) {
                    $('lightwindow_previous').setStyle({
                        display: 'none'
                    });
                } else {
                    $('lightwindow_previous').setStyle({
                        display: 'block'
                    });
                    $('lightwindow_previous_title').innerHTML = this.galleries[gallery[0]][gallery[1]][current-1].title;
                }
            }
            
            if (this._getParameter('lightwindow_iframe_embed')) {
                this.resizeTo.height = this.dimensions.viewport.height;
                this.resizeTo.width = this.dimensions.viewport.width;	
            } else {
                this.resizeTo.height = this._getParameter('lightwindow_height');
                this.resizeTo.width = this._getParameter('lightwindow_width');				
            }
            
            this._processWindow();
            
            break;

        case 'external' :		

            this._appendIframe('auto');

            this.resizeTo.height = this.dimensions.viewport.height;
            this.resizeTo.width = this.dimensions.viewport.width;
                        
            this._processWindow();

            break;
                
        case 'page' :	
            
            var newAJAX = new Ajax.Request(
                this.contentToFetch, {
                    method: 'get', 
                    parameters: '', 
                    onComplete: function(response) {
                        $('lightwindow_contents').innerHTML += response.responseText;
                        this.resizeTo.height = $('lightwindow_contents').scrollHeight+(this.options.contentOffset.height);
                        this.resizeTo.width = $('lightwindow_contents').scrollWidth+(this.options.contentOffset.width);
                        this._processWindow();
                    }.bind(this)
                }
            );
            
            break;
            
        case 'inline' : 
        
            var content = this.contentToFetch;
            if (content.indexOf('?') > -1) {
                content = content.substring(0, content.indexOf('?'));
            }
            content = content.substring(content.indexOf('#')+1);
            
            new Insertion.Top($('lightwindow_contents'), $(content).innerHTML);
            
            this.resizeTo.height = $('lightwindow_contents').scrollHeight+(this.options.contentOffset.height);
            this.resizeTo.width = $('lightwindow_contents').scrollWidth+(this.options.contentOffset.width);
            
            this._toggleTroubleElements('hidden', true); 			
            this._processWindow();
            
            break;
            
        default : 
            throw("Page Type could not be determined, please amend this lightwindow URL "+this.contentToFetch);
            break;
        }
    },
    //
    //  Resize the Window to fit the viewport if necessary
    //
    _resizeWindowToFit : function() {
        if (this.resizeTo.height+this.dimensions.cruft.height > this.dimensions.viewport.height) {
            var heightRatio = this.resizeTo.height/this.resizeTo.width;
            this.resizeTo.height = this.dimensions.viewport.height-this.dimensions.cruft.height-(2*this.options.viewportPadding);
            // We only care about ratio's with this window type			
            if (this.windowType == 'image' || (this.windowType == 'media' && !this._getParameter('lightwindow_iframe_embed'))) {
                this.resizeTo.width = this.resizeTo.height/heightRatio;
                $('lightwindow_data_slide_inner').setStyle({
                    width: this.resizeTo.width+'px'
                });			
            }
        } 
        if (this.resizeTo.width+this.dimensions.cruft.width > this.dimensions.viewport.width) {
            var widthRatio = this.resizeTo.width/this.resizeTo.height;
            this.resizeTo.width = this.dimensions.viewport.width-2*this.dimensions.cruft.width-(2*this.options.viewportPadding);
            // We only care about ratio's with this window type
            if (this.windowType == 'image' || (this.windowType == 'media' && !this._getParameter('lightwindow_iframe_embed'))) {
                this.resizeTo.height = this.resizeTo.width/widthRatio;
                $('lightwindow_data_slide_inner').setStyle({
                    height: this.resizeTo.height+'px'
                });
            }
        }
            
    },
    //
    //  Set the Window to a preset size
    //
    _presetWindowSize : function() {
        if (this._getParameter('lightwindow_height')) {
            this.resizeTo.height = parseFloat(this._getParameter('lightwindow_height'));
        }
        if (this._getParameter('lightwindow_width')) {
            this.resizeTo.width = parseFloat(this._getParameter('lightwindow_width'));
        }
    },
    //
    //  Process the Window
    //
    _processWindow : function() {
        // Clean out our effects
        this.dimensions.dataEffects = [];

        // Set up the data-slide if we have caption information
        if (this.element.caption || this.element.author || (this.activeGallery && this.options.showGalleryCount)) {
            if (this.element.caption) {
                $('lightwindow_data_caption').innerHTML = this.element.caption;
                $('lightwindow_data_caption').setStyle({
                    display: 'block'
                });
            } else {
                $('lightwindow_data_caption').setStyle({
                    display: 'none'
                });				
            }
            if (this.element.author) {
                $('lightwindow_data_author').innerHTML = this.element.author;
                $('lightwindow_data_author_container').setStyle({
                    display: 'block'
                });
            } else {
                $('lightwindow_data_author_container').setStyle({
                    display: 'none'
                });				
            }
            if (this.activeGallery && this.options.showGalleryCount) {
                $('lightwindow_data_gallery_current').innerHTML = this.galleryLocation.current;
                $('lightwindow_data_gallery_total').innerHTML = this.galleryLocation.total;
                $('lightwindow_data_gallery_container').setStyle({
                    display: 'block'
                });
            } else {
                $('lightwindow_data_gallery_container').setStyle({
                    display: 'none'
                });				
            }

            $('lightwindow_data_slide_inner').setStyle({
                width: this.resizeTo.width+'px',
                height: 'auto',
                visibility: 'visible',
                display: 'block'
            });
            $('lightwindow_data_slide').setStyle({
                height: $('lightwindow_data_slide').getHeight()+'px',
                width: '1px',
                overflow: 'hidden',
                display: 'block'
            });
        } else {
            $('lightwindow_data_slide').setStyle({
                display: 'none',
                width: 'auto'
            });
            $('lightwindow_data_slide_inner').setStyle({
                display: 'none',
                visibility: 'hidden',
                width: this.resizeTo.width+'px',
                height: '0px'
            });
        }
                
        if (this.element.title != 'null') {		
            $('lightwindow_title_bar_title').innerHTML = this.element.title;
        } else {
            $('lightwindow_title_bar_title').innerHTML = '';
        }
        
        var originalContainerDimensions = {height: $('lightwindow_container').getHeight(), width: $('lightwindow_container').getWidth()};
        // Position the window
        $('lightwindow_container').setStyle({
            height: 'auto',
            // We need to set the width to a px not auto as opera has problems with it
            width: $('lightwindow_container').getWidth()+this.options.contentOffset.width-(this.windowActive ? this.options.contentOffset.width : 0)+'px'
        });
        var newContainerDimensions = {height: $('lightwindow_container').getHeight(), width: $('lightwindow_container').getWidth()};
        
        // We need to record the container dimension changes
        this.containerChange = {height: originalContainerDimensions.height-newContainerDimensions.height, width: originalContainerDimensions.width-newContainerDimensions.width};

        // Get out general dimensions
        this.dimensions.container = {height: $('lightwindow_container').getHeight(), width: $('lightwindow_container').getWidth()};
        this.dimensions.cruft = {height: this.dimensions.container.height-$('lightwindow_contents').getHeight()+this.options.contentOffset.height, width: this.dimensions.container.width-$('lightwindow_contents').getWidth()+this.options.contentOffset.width};
        
        // Set Sizes if we need too
        this._presetWindowSize();
        this._resizeWindowToFit(); // Even if the window is preset we still don't want it to go outside of the viewport

        if (!this.windowActive) {
            // Position the window
                $('lightwindow_container').setStyle({
                left: -(this.dimensions.container.width/2)+'px',
                top: -(this.dimensions.container.height/2)+'px'
            });
        }
            $('lightwindow_container').setStyle({
            height: this.dimensions.container.height+'px',
            width: this.dimensions.container.width+'px'
        });
        
        // We are ready, lets show this puppy off!
        this._displayLightWindow('block', 'visible');
        this._animateLightWindow();
    },
    //
    //  Fire off our animation handler
    //
    _animateLightWindow : function() {
        if (this.options.animationHandler) {
            this.options.animationHandler().bind(this);
        } else {
            this._defaultAnimationHandler();
        }
    },
    //
    //  Fire off our transition handler
    //
    _handleNavigation : function(display) {
        if (this.options.navigationHandler) {
            this.options.navigationHandler().bind(this, display);
        } else {
            this._defaultDisplayNavigation(display);
        }
    },
    //
    //  Fire off our transition handler
    //
    _handleTransition : function() {
        if (this.options.transitionHandler) {
            this.options.transitionHandler().bind(this);
        } else {
            this._defaultTransitionHandler();
        }
    },
    //
    //  Handle the finish of the window animation
    // 
    _handleFinalWindowAnimation : function(delay) {
        if (this.options.finalAnimationHandler) {
            this.options.finalAnimationHandler().bind(this, delay);
        } else {
            this._defaultfinalWindowAnimationHandler(delay);
        }		
    },
    //
    //  Handle the gallery Animation
    // 
    _handleGalleryAnimation : function(list) {
        if (this.options.galleryAnimationHandler) {
            this.options.galleryAnimationHandler().bind(this, list);
        } else {
            this._defaultGalleryAnimationHandler(list);
        }		
    },
    //
    //  Display the navigation 
    //
    _defaultDisplayNavigation : function(display) {
        if (display) {
            $('lightwindow_navigation').setStyle({
                display: 'block',
                height: $('lightwindow_contents').getHeight()+'px',
                width: '100%',
                marginTop: this.options.dimensions.titleHeight+'px'
            });			
        } else {
            $('lightwindow_navigation').setStyle({
                display: 'none',
                height: 'auto',
                width: 'auto'
            });			
        }
    },
    //
    //  This is the default animation handler for LightWindow
    //
    _defaultAnimationHandler : function() {	
        // Now that we have figures out the cruft lets make the caption go away and add its effects
        if (this.element.caption || this.element.author || (this.activeGallery && this.options.showGalleryCount)) {
            $('lightwindow_data_slide').setStyle({
                display: 'none',
                width: 'auto'
            });
            this.dimensions.dataEffects.push(
                new Effect.SlideDown('lightwindow_data_slide', {sync: true}),
                new Effect.Appear('lightwindow_data_slide', {sync: true, from: 0.0, to: 1.0})
            );
        }

        // Set up the Title if we have one
        $('lightwindow_title_bar_inner').setStyle({
            height: '0px',
            marginTop: this.options.dimensions.titleHeight+'px'
        });
        
        // We always want the title bar as well
        this.dimensions.dataEffects.push(
            new Effect.Morph('lightwindow_title_bar_inner', {sync: true, style: {height: this.options.dimensions.titleHeight+'px', marginTop: '0px'}}),
            new Effect.Appear('lightwindow_title_bar_inner', {sync: true, from: 0.0, to: 1.0})
        );		
        
        if (!this.options.hideGalleryTab) {
            this._handleGalleryAnimation(false);
            if ($('lightwindow_galleries_tab_container').getHeight() == 0) {
                this.dimensions.dataEffects.push(
                    new Effect.Morph('lightwindow_galleries_tab_container', {sync: true, style: {height: '20px', marginTop: '0px'}})
                );
                $('lightwindow_galleries').setStyle({
                    width: '0px'
                });
            }
        }
        
        var resized = false;
        var ratio = this.dimensions.container.width-$('lightwindow_contents').getWidth()+this.resizeTo.width+this.options.contentOffset.width;
        if (ratio != $('lightwindow_container').getWidth()) {
            new Effect.Parallel([
                    new Effect.Scale('lightwindow_contents', 100*(this.resizeTo.width/$('lightwindow_contents').getWidth()), {scaleFrom: 100*($('lightwindow_contents').getWidth()/($('lightwindow_contents').getWidth()+(this.options.contentOffset.width))), sync: true,  scaleY: false, scaleContent: false}),
                    new Effect.Scale('lightwindow_container', 100*(ratio/(this.dimensions.container.width)), {sync: true, scaleY: false, scaleFromCenter: true, scaleContent: false})
                ], {
                    duration: this.duration, 
                    delay: 0.25,
                    queue: {position: 'end', scope: 'lightwindowAnimation'}
                }
            );		
        }
        
        ratio = this.dimensions.container.height-$('lightwindow_contents').getHeight()+this.resizeTo.height+this.options.contentOffset.height;
        if (ratio != $('lightwindow_container').getHeight()) {
            new Effect.Parallel([
                    new Effect.Scale('lightwindow_contents', 100*(this.resizeTo.height/$('lightwindow_contents').getHeight()), {scaleFrom: 100*($('lightwindow_contents').getHeight()/($('lightwindow_contents').getHeight()+(this.options.contentOffset.height))), sync: true, scaleX: false, scaleContent: false}),
                    new Effect.Scale('lightwindow_container', 100*(ratio/(this.dimensions.container.height)), {sync: true, scaleX: false, scaleFromCenter: true, scaleContent: false})
                ], {
                    duration: this.duration, 
                    afterFinish: function() {				
                        if (this.dimensions.dataEffects.length > 0) {
                            if (!this.options.hideGalleryTab) {
                                $('lightwindow_galleries').setStyle({
                                    width: this.resizeTo.width+'px'
                                });
                            }
                            new Effect.Parallel(this.dimensions.dataEffects, {
                                    duration: this.duration,
                                    afterFinish: function() {
                                        this._finishWindow();
                                    }.bind(this),
                                    queue: {position: 'end', scope: 'lightwindowAnimation'} 
                                }
                            );
                        }
                    }.bind(this), 
                    queue: {position: 'end', scope: 'lightwindowAnimation'} 
                }
            );
            resized = true;
        }
        
        // We need to do our data effect since there was no resizing
        if (!resized && this.dimensions.dataEffects.length > 0) {	
            new Effect.Parallel(this.dimensions.dataEffects, {
                    duration: this.duration,
                    beforeStart: function() {
                        if (!this.options.hideGalleryTab) {
                            $('lightwindow_galleries').setStyle({
                                width: this.resizeTo.width+'px'
                            });
                        }
                        if (this.containerChange.height != 0 || this.containerChange.width != 0) {
                            new Effect.MoveBy('lightwindow_container', this.containerChange.height, this.containerChange.width, {transition: Effect.Transitions.sinoidal});
                        }
                    }.bind(this),			
                    afterFinish: function() {
                        this._finishWindow();
                    }.bind(this),
                    queue: {position: 'end', scope: 'lightwindowAnimation'} 
                }
            );
        }			
        
    },
    //
    //  Finish up Window Animation
    //
    _defaultfinalWindowAnimationHandler : function(delay) {
        if (this.windowType == 'media' || this._getParameter('lightwindow_loading_animation')) {	
            // Because of major flickering with the overlay we just hide it in this case
            Element.hide('lightwindow_loading');
            this._handleNavigation(this.activeGallery);
            this._setStatus(false);
        } else {
            Effect.Fade('lightwindow_loading', {
                duration: 0.75,
                delay: 1.0, 
                afterFinish: function() {
                    // Just in case we need some scroll goodness (this also avoids the swiss cheese effect)
                    if (this.windowType != 'image' && this.windowType != 'media' && this.windowType != 'external') {
                        $('lightwindow_contents').setStyle({
                            overflow: 'auto'
                        });
                    }
                    this._handleNavigation(this.activeGallery);
                    this._defaultGalleryAnimationHandler();
                    this._setStatus(false);
                }.bind(this),
                queue: {position: 'end', scope: 'lightwindowAnimation'}
            });
        }
    },
    //
    //  Handle the gallery Animation
    //
    _defaultGalleryAnimationHandler : function(list) {
        if (this.activeGallery) {
            $('lightwindow_galleries').setStyle({
                display: 'block',
                marginBottom: $('lightwindow_data_slide').getHeight()+this.options.contentOffset.height/2+'px'
            });
            $('lightwindow_navigation').setStyle({
                height: $('lightwindow_contents').getHeight()-20+'px'
            });
        } else {
            $('lightwindow_galleries').setStyle({
                display: 'none'
            });	
            $('lightwindow_galleries_tab_container').setStyle({
                height: '0px',
                marginTop: '20px'
            });
            $('lightwindow_galleries_list').setStyle({
                height: '0px'
            });
            return false;
        }
        
        if (list) {
            if ($('lightwindow_galleries_list').getHeight() == 0) {
                var height = $('lightwindow_contents').getHeight()*0.80;
                $('lightwindow_galleries_tab_span').className = 'down';
            } else {
                var height = 0;
                $('lightwindow_galleries_tab_span').className = 'up';
            }

            new Effect.Morph('lightwindow_galleries_list', {
                duration: this.duration,
                transition: Effect.Transitions.sinoidal,
                style: {height: height+'px'},
                beforeStart: function() {
                    $('lightwindow_galleries_list').setStyle({
                        overflow: 'hidden'
                    });					
                },
                afterFinish: function() {
                    $('lightwindow_galleries_list').setStyle({
                        overflow: 'auto'
                    });
                },
                queue: {position: 'end', scope: 'lightwindowAnimation'}
            });	
        }
        
        
    },
    //
    //  Default Transition Handler
    //
    _defaultTransitionHandler : function() {
        // Clean out our effects
        this.dimensions.dataEffects = [];

        // Now that we have figures out the cruft lets make the caption go away and add its effects
        if ($('lightwindow_data_slide').getStyle('display') != 'none') {
            this.dimensions.dataEffects.push(
                new Effect.SlideUp('lightwindow_data_slide', {sync: true}),
                new Effect.Fade('lightwindow_data_slide', {sync: true, from: 1.0, to: 0.0})
            );
        }
        
        if (!this.options.hideGalleryTab) {
            if ($('lightwindow_galleries').getHeight() != 0 && !this.options.hideGalleryTab) {
                this.dimensions.dataEffects.push(
                    new Effect.Morph('lightwindow_galleries_tab_container', {sync: true, style: {height: '0px', marginTop: '20px'}})
                );
            }
            
            if ($('lightwindow_galleries_list').getHeight() != 0) {
                $('lightwindow_galleries_tab_span').className = 'up';
                this.dimensions.dataEffects.push(
                    new Effect.Morph('lightwindow_galleries_list', {
                        sync: true, 
                        style: {height: '0px'},
                        transition: Effect.Transitions.sinoidal,
                        beforeStart: function() {
                            $('lightwindow_galleries_list').setStyle({
                                overflow: 'hidden'
                            });					
                        },
                        afterFinish: function() {
                            $('lightwindow_galleries_list').setStyle({
                                overflow: 'auto'
                            });
                        }
                    })
                );
            }
        }
        
        // We always want the title bar as well
        this.dimensions.dataEffects.push(
            new Effect.Morph('lightwindow_title_bar_inner', {sync: true, style: {height: '0px', marginTop: this.options.dimensions.titleHeight+'px'}}),
            new Effect.Fade('lightwindow_title_bar_inner', {sync: true, from: 1.0, to: 0.0})
        );

        new Effect.Parallel(this.dimensions.dataEffects, {
                duration: this.duration,
                afterFinish: function() {
                    this._loadWindow();
                }.bind(this),
                queue: {position: 'end', scope: 'lightwindowAnimation'} 
            }
        );	
    },
    //
    //	Default Form handler for LightWindow
    //
    _defaultFormHandler : function(e) {
        var element = Event.element(e).parentNode;
        var parameterString = Form.serialize(this._getParameter('lightwindow_form', element.getAttribute('params')));
        if (this.options.formMethod == 'post') {
            var newAJAX = new Ajax.Request(element.href, { 
                method: 'post', 
                postBody: parameterString, 
                onComplete: this.openWindow.bind(this, element)
            });
        } else if (this.options.formMethod == 'get') {
            var newAJAX = new Ajax.Request(element.href, { 
                method: 'get', 
                parameters: parameterString, 
                onComplete: this.openWindow.bind(this, element)
            });
        }
    },
    // 
    //  Wrap everything up
    //
    _finishWindow : function() {
        if (this.windowType == 'external') {
            // We set the externals source here because it allows for a much smoother animation
            $('lightwindow_iframe').setAttribute('src', this.element.href);
            this._handleFinalWindowAnimation(1);	
        } else if (this.windowType == 'media') {

            var outerObject = document.createElement('object');
            outerObject.setAttribute('classid', this.options.classids[this._fileExtension(this.contentToFetch)]);
            outerObject.setAttribute('codebase', this.options.codebases[this._fileExtension(this.contentToFetch)]);
            outerObject.setAttribute('id', 'lightwindow_media_primary');
            outerObject.setAttribute('name', 'lightwindow_media_primary');
            outerObject.setAttribute('width', this.resizeTo.width);
            outerObject.setAttribute('height', this.resizeTo.height);
            outerObject = this._addParamToObject('movie', this.contentToFetch, outerObject);
            outerObject = this._addParamToObject('src', this.contentToFetch, outerObject);
            outerObject = this._addParamToObject('controller', 'true', outerObject);
            outerObject = this._addParamToObject('wmode', 'transparent', outerObject);
            outerObject = this._addParamToObject('cache', 'false', outerObject);
            outerObject = this._addParamToObject('quality', 'high', outerObject);

            if (!Prototype.Browser.IE) {
                var innerObject = document.createElement('object');
                innerObject.setAttribute('type', this.options.mimeTypes[this._fileExtension(this.contentToFetch)]);
                innerObject.setAttribute('data', this.contentToFetch);
                innerObject.setAttribute('id', 'lightwindow_media_secondary');
                innerObject.setAttribute('name', 'lightwindow_media_secondary');
                innerObject.setAttribute('width', this.resizeTo.width);
                innerObject.setAttribute('height', this.resizeTo.height);
                innerObject = this._addParamToObject('controller', 'true', innerObject);
                innerObject = this._addParamToObject('wmode', 'transparent', innerObject);
                innerObject = this._addParamToObject('cache', 'false', innerObject);
                innerObject = this._addParamToObject('quality', 'high', innerObject);
            
                outerObject.appendChild(innerObject);
            }	
            
            if (this._getParameter('lightwindow_iframe_embed')) {
                this._appendIframe('no');
                this._writeToIframe(this._convertToMarkup(outerObject, 'object'));
            } else {
                this._appendObject(outerObject, 'object', $('lightwindow_contents'));
            }

            this._handleFinalWindowAnimation(0);
        } else {
            this._handleFinalWindowAnimation(0);
        }

        // Initialize any actions
        this._setupActions();
    }
}

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

Event.observe(window, 'load', lightwindowInit, false);

//
//	Set up all of our links
//
var myLightWindow = null;
function lightwindowInit() {
    myLightWindow = new lightwindow();
}