//MooTools, My Object Oriented Javascript Tools. Copyright (c) 2006 Valerio Proietti, <http://mad4milk.net>, MIT Style License.
var Class = function (properties) {
    var klass = function () {
        if (this.initialize && arguments[0] != 'noinit') return this.initialize.apply(this, arguments);
        else return this
    };
    for (var property in this) klass[property] = this[property];
    klass.prototype = properties;
    return klass
};
Class.empty = function () {};
Class.prototype = {
    extend: function (properties) {
        var pr0t0typ3 = new this('noinit');
        var parentize = function (previous, current) {
            if (!previous.apply || !current.apply) return false;
            return function () {
                this.parent = previous;
                return current.apply(this, arguments)
            }
        };
        for (var property in properties) {
            var previous = pr0t0typ3[property];
            var current = properties[property];
            if (previous && previous != current) current = parentize(previous, current) || current;
            pr0t0typ3[property] = current
        }
        return new Class(pr0t0typ3)
    },
    implement: function (properties) {
        for (var property in properties) this.prototype[property] = properties[property]
    }
};
Object.extend = function () {
    var args = arguments;
    args = (args[1]) ? [args[0], args[1]] : [this, args[0]];
    for (var property in args[1]) args[0][property] = args[1][property];
    return args[0]
};
Object.Native = function () {
    for (var i = 0; i < arguments.length; i++) arguments[i].extend = Class.prototype.implement
};
new Object.Native(Function, Array, String, Number, Class);
if (typeof HTMLElement == 'undefined') {
    var HTMLElement = Class.empty;
    HTMLElement.prototype = {}
} else {
    HTMLElement.prototype.htmlElement = true
}
window.extend = document.extend = Object.extend;
var Window = window;

function $type(obj) {
    if (obj === null || obj === undefined) return false;
    var type = typeof obj;
    if (type == 'object') {
        if (obj.htmlElement) return 'element';
        if (obj.push) return 'array';
        if (obj.nodeName) {
            switch (obj.nodeType) {
            case 1:
                return 'element';
            case 3:
                return obj.nodeValue.test(/\S/) ? 'textnode' : 'whitespace'
            }
        }
    }
    return type
};

function $chk(obj) {
    return !! (obj || obj === 0)
};

function $pick(obj, picked) {
    return ($type(obj)) ? obj : picked
};

function $random(min, max) {
    return Math.floor(Math.random() * (max - min + 1) + min)
};

function $clear(timer) {
    clearTimeout(timer);
    clearInterval(timer);
    return null
};
if (window.ActiveXObject) window.ie = window[window.XMLHttpRequest ? 'ie7' : 'ie6'] = true;
else if (document.childNodes && !document.all && !navigator.taintEnabled) window.khtml = true;
else if (document.getBoxObjectFor != null) window.gecko = true;
if (window.ie6) try {
    document.execCommand("BackgroundImageCache", false, true)
} catch(e) {};
Array.prototype.forEach = Array.prototype.forEach ||
function (fn, bind) {
    for (var i = 0; i < this.length; i++) fn.call(bind, this[i], i, this)
};
Array.prototype.filter = Array.prototype.filter ||
function (fn, bind) {
    var results = [];
    for (var i = 0; i < this.length; i++) {
        if (fn.call(bind, this[i], i, this)) results.push(this[i])
    }
    return results
};
Array.prototype.map = Array.prototype.map ||
function (fn, bind) {
    var results = [];
    for (var i = 0; i < this.length; i++) results[i] = fn.call(bind, this[i], i, this);
    return results
};
Array.prototype.every = Array.prototype.every ||
function (fn, bind) {
    for (var i = 0; i < this.length; i++) {
        if (!fn.call(bind, this[i], i, this)) return false
    }
    return true
};
Array.prototype.some = Array.prototype.some ||
function (fn, bind) {
    for (var i = 0; i < this.length; i++) {
        if (fn.call(bind, this[i], i, this)) return true
    }
    return false
};
Array.prototype.indexOf = Array.prototype.indexOf ||
function (item, from) {
    from = from || 0;
    if (from < 0) from = Math.max(0, this.length + from);
    while (from < this.length) {
        if (this[from] === item) return from;
        from++
    }
    return -1
};
Array.extend({
    each: Array.prototype.forEach,
    copy: function (start, length) {
        start = start || 0;
        if (start < 0) start = this.length + start;
        length = length || (this.length - start);
        var newArray = [];
        for (var i = 0; i < length; i++) newArray[i] = this[start++];
        return newArray
    },
    remove: function (item) {
        var i = 0;
        while (i < this.length) {
            if (this[i] === item) this.splice(i, 1);
            else i++
        }
        return this
    },
    test: function (item, from) {
        return this.indexOf(item, from) != -1
    },
    extend: function (newArray) {
        for (var i = 0; i < newArray.length; i++) this.push(newArray[i]);
        return this
    },
    associate: function (keys) {
        var obj = {},
            length = Math.min(this.length, keys.length);
        for (var i = 0; i < length; i++) obj[keys[i]] = this[i];
        return obj
    }
});

function $A(array, start, length) {
    return Array.prototype.copy.call(array, start, length)
};

function $each(iterable, fn, bind) {
    return Array.prototype.forEach.call(iterable, fn, bind)
};
String.extend({
    test: function (regex, params) {
        return ((typeof regex == 'string') ? new RegExp(regex, params) : regex).test(this)
    },
    toInt: function () {
        return parseInt(this)
    },
    toFloat: function () {
        return parseFloat(this)
    },
    camelCase: function () {
        return this.replace(/-\D/g, function (match) {
            return match.charAt(1).toUpperCase()
        })
    },
    hyphenate: function () {
        return this.replace(/\w[A-Z]/g, function (match) {
            return (match.charAt(0) + '-' + match.charAt(1).toLowerCase())
        })
    },
    capitalize: function () {
        return this.toLowerCase().replace(/\b[a-z]/g, function (match) {
            return match.toUpperCase()
        })
    },
    trim: function () {
        return this.replace(/^\s+|\s+$/g, '')
    },
    clean: function () {
        return this.replace(/\s{2,}/g, ' ').trim()
    },
    rgbToHex: function (array) {
        var rgb = this.match(/\d{1,3}/g);
        return (rgb) ? rgb.rgbToHex(array) : false
    },
    hexToRgb: function (array) {
        var hex = this.match(/^#?(\w{1,2})(\w{1,2})(\w{1,2})$/);
        return (hex) ? hex.slice(1).hexToRgb(array) : false
    }
});
Array.extend({
    rgbToHex: function (array) {
        if (this.length < 3) return false;
        if (this[3] && (this[3] == 0) && !array) return 'transparent';
        var hex = [];
        for (var i = 0; i < 3; i++) {
            var bit = (this[i] - 0).toString(16);
            hex.push((bit.length == 1) ? '0' + bit : bit)
        }
        return array ? hex : '#' + hex.join('')
    },
    hexToRgb: function (array) {
        if (this.length != 3) return false;
        var rgb = [];
        for (var i = 0; i < 3; i++) {
            rgb.push(parseInt((this[i].length == 1) ? this[i] + this[i] : this[i], 16))
        }
        return array ? rgb : 'rgb(' + rgb.join(',') + ')'
    }
});
Number.extend({
    toInt: function () {
        return parseInt(this)
    },
    toFloat: function () {
        return parseFloat(this)
    }
});
Function.extend({
    create: function (options) {
        var fn = this;
        options = Object.extend({
            'bind': fn,
            'event': false,
            'arguments': null,
            'delay': false,
            'periodical': false,
            'attempt': false
        },
        options || {});
        if ($chk(options.arguments) && $type(options.arguments) != 'array') options.arguments = [options.arguments];
        return function (event) {
            var args;
            if (options.event) {
                event = event || window.event;
                args = [(options.event === true) ? event : new options.event(event)];
                if (options.arguments) args = args.concat(options.arguments)
            } else args = options.arguments || arguments;
            var returns = function () {
                return fn.apply(options.bind, args)
            };
            if (options.delay) return setTimeout(returns, options.delay);
            if (options.periodical) return setInterval(returns, options.periodical);
            if (options.attempt) {
                try {
                    return returns()
                } catch(err) {
                    return err
                }
            }
            return returns()
        }
    },
    pass: function (args, bind) {
        return this.create({
            'arguments': args,
            'bind': bind
        })
    },
    attempt: function (args, bind) {
        return this.create({
            'arguments': args,
            'bind': bind,
            'attempt': true
        })()
    },
    bind: function (bind, args) {
        return this.create({
            'bind': bind,
            'arguments': args
        })
    },
    bindAsEventListener: function (bind, args) {
        return this.create({
            'bind': bind,
            'event': true,
            'arguments': args
        })
    },
    delay: function (ms, bind, args) {
        return this.create({
            'delay': ms,
            'bind': bind,
            'arguments': args
        })()
    },
    periodical: function (ms, bind, args) {
        return this.create({
            'periodical': ms,
            'bind': bind,
            'arguments': args
        })()
    }
});
var Element = new Class({
    initialize: function (el) {
        if ($type(el) == 'string') el = document.createElement(el);
        return $(el)
    }
});

function $(el) {
    if (!el) return false;
    if (el._element_extended_ || [window, document].test(el)) return el;
    if ($type(el) == 'string') el = document.getElementById(el);
    if ($type(el) != 'element') return false;
    if (['object', 'embed'].test(el.tagName.toLowerCase()) || el.extend) return el;
    el._element_extended_ = true;
    Garbage.collect(el);
    el.extend = Object.extend;
    if (! (el.htmlElement)) el.extend(Element.prototype);
    return el
};
var Elements = new Class({});
new Object.Native(Elements);
document.getElementsBySelector = document.getElementsByTagName;

function $$() {
    if (!arguments) return false;
    if (arguments.length == 1) {
        if (!arguments[0]) return false;
        if (arguments[0]._elements_extended_) return arguments[0]
    }
    var elements = [];
    $each(arguments, function (selector) {
        switch ($type(selector)) {
        case 'element':
            elements.push($(selector));
            break;
        case 'string':
            selector = document.getElementsBySelector(selector);
        default:
            if (selector.length) {
                $each(selector, function (el) {
                    if ($(el)) elements.push(el)
                })
            }
        }
    });
    elements._elements_extended_ = true;
    return Object.extend(elements, new Elements)
};
Elements.Multi = function (property) {
    return function () {
        var args = arguments;
        var items = [];
        var elements = true;
        $each(this, function (el) {
            var returns = el[property].apply(el, args);
            if ($type(returns) != 'element') elements = false;
            items.push(returns)
        });
        if (elements) items = $$(items);
        return items
    }
};
Element.extend = function (properties) {
    for (var property in properties) {
        HTMLElement.prototype[property] = properties[property];
        Element.prototype[property] = properties[property];
        Elements.prototype[property] = Elements.Multi(property)
    }
};
Element.extend({
    inject: function (el, where) {
        el = $(el) || new Element(el);
        switch (where) {
        case "before":
            $(el.parentNode).insertBefore(this, el);
            break;
        case "after":
            if (!el.getNext()) $(el.parentNode).appendChild(this);
            else $(el.parentNode).insertBefore(this, el.getNext());
            break;
        case "inside":
            el.appendChild(this)
        }
        return this
    },
    injectBefore: function (el) {
        return this.inject(el, 'before')
    },
    injectAfter: function (el) {
        return this.inject(el, 'after')
    },
    injectInside: function (el) {
        return this.inject(el, 'inside')
    },
    adopt: function (el) {
        this.appendChild($(el) || new Element(el));
        return this
    },
    remove: function () {
        this.parentNode.removeChild(this);
        return this
    },
    clone: function (contents) {
        var el = this.cloneNode(contents !== false);
        return $(el)
    },
    replaceWith: function (el) {
        el = $(el) || new Element(el);
        this.parentNode.replaceChild(el, this);
        return el
    },
    appendText: function (text) {
        if (window.ie) {
            switch (this.getTag()) {
            case 'style':
                this.styleSheet.cssText = text;
                return this;
            case 'script':
                this.setProperty('text', text);
                return this
            }
        }
        this.appendChild(document.createTextNode(text));
        return this
    },
    hasClass: function (className) {
        return this.className.test('(?:^|\\s)' + className + '(?:\\s|$)')
    },
    addClass: function (className) {
        if (!this.hasClass(className)) this.className = (this.className + ' ' + className).clean();
        return this
    },
    removeClass: function (className) {
        this.className = this.className.replace(new RegExp('(^|\\s)' + className + '(?:\\s|$)'), '$1').clean();
        return this
    },
    toggleClass: function (className) {
        return this.hasClass(className) ? this.removeClass(className) : this.addClass(className)
    },
    setStyle: function (property, value) {
        if (property == 'opacity') this.setOpacity(parseFloat(value));
        else this.style[property.camelCase()] = (value.push) ? 'rgb(' + value.join(',') + ')' : value;
        return this
    },
    setStyles: function (source) {
        switch ($type(source)) {
        case 'object':
            for (var property in source) this.setStyle(property, source[property]);
            break;
        case 'string':
            this.style.cssText = source
        }
        return this
    },
    setOpacity: function (opacity) {
        if (opacity == 0) {
            if (this.style.visibility != "hidden") this.style.visibility = "hidden"
        } else {
            if (this.style.visibility != "visible") this.style.visibility = "visible"
        }
        if (!this.currentStyle || !this.currentStyle.hasLayout) this.style.zoom = 1;
        if (window.ie) this.style.filter = "alpha(opacity=" + opacity * 100 + ")";
        this.style.opacity = this.opacity = opacity;
        return this
    },
    getStyle: function (property) {
        property = property.camelCase();
        var style = this.style[property] || false;
        if (!$chk(style)) {
            if (property == 'opacity') return $chk(this.opacity) ? this.opacity : 1;
            if (['margin', 'padding'].test(property)) {
                return [this.getStyle(property + '-top') || 0, this.getStyle(property + '-right') || 0, this.getStyle(property + '-bottom') || 0, this.getStyle(property + '-left') || 0].join(' ')
            }
            if (document.defaultView) style = document.defaultView.getComputedStyle(this, null).getPropertyValue(property.hyphenate());
            else if (this.currentStyle) style = this.currentStyle[property]
        }
        if (style == 'auto' && ['height', 'width'].test(property)) return this['offset' + property.capitalize()] + 'px';
        return (style && property.test(/color/i) && style.test(/rgb/)) ? style.rgbToHex() : style
    },
    addEvent: function (type, fn) {
        this.events = this.events || {};
        this.events[type] = this.events[type] || {
            'keys': [],
            'values': []
        };
        if (!this.events[type].keys.test(fn)) {
            this.events[type].keys.push(fn);
            if (this.addEventListener) {
                this.addEventListener((type == 'mousewheel' && window.gecko) ? 'DOMMouseScroll' : type, fn, false)
            } else {
                fn = fn.bind(this);
                this.attachEvent('on' + type, fn);
                this.events[type].values.push(fn)
            }
        }
        return this
    },
    addEvents: function (source) {
        if (source) {
            for (var type in source) this.addEvent(type, source[type])
        }
        return this
    },
    removeEvent: function (type, fn) {
        if (this.events && this.events[type]) {
            var pos = this.events[type].keys.indexOf(fn);
            if (pos == -1) return this;
            var key = this.events[type].keys.splice(pos, 1)[0];
            if (this.removeEventListener) {
                this.removeEventListener((type == 'mousewheel' && window.gecko) ? 'DOMMouseScroll' : type, key, false)
            } else {
                this.detachEvent('on' + type, this.events[type].values.splice(pos, 1)[0])
            }
        }
        return this
    },
    removeEvents: function (type) {
        if (this.events) {
            if (type) {
                if (this.events[type]) {
                    this.events[type].keys.each(function (fn) {
                        this.removeEvent(type, fn)
                    },
                    this);
                    this.events[type] = null
                }
            } else {
                for (var evType in this.events) this.removeEvents(evType);
                this.events = null
            }
        }
        return this
    },
    fireEvent: function (type, args) {
        if (this.events && this.events[type]) {
            this.events[type].keys.each(function (fn) {
                fn.bind(this, args)()
            },
            this)
        }
    },
    getBrother: function (what) {
        var el = this[what + 'Sibling'];
        while ($type(el) == 'whitespace') el = el[what + 'Sibling'];
        return $(el)
    },
    getPrevious: function () {
        return this.getBrother('previous')
    },
    getNext: function () {
        return this.getBrother('next')
    },
    getFirst: function () {
        var el = this.firstChild;
        while ($type(el) == 'whitespace') el = el.nextSibling;
        return $(el)
    },
    getLast: function () {
        var el = this.lastChild;
        while ($type(el) == 'whitespace') el = el.previousSibling;
        return $(el)
    },
    getParent: function () {
        return $(this.parentNode)
    },
    getChildren: function () {
        return $$(this.childNodes)
    },
    setProperty: function (property, value) {
        switch (property) {
        case 'class':
            this.className = value;
            break;
        case 'style':
            this.setStyles(value);
            break;
        case 'name':
            if (window.ie6) {
                var el = $(document.createElement('<' + this.getTag() + ' name="' + value + '" />'));
                $each(this.attributes, function (attribute) {
                    if (attribute.name != 'name') el.setProperty(attribute.name, attribute.value)
                });
                if (this.parentNode) this.replaceWith(el);
                return el
            }
        default:
            this.setAttribute(property, value)
        }
        return this
    },
    setProperties: function (source) {
        for (var property in source) this.setProperty(property, source[property]);
        return this
    },
    setHTML: function () {
        this.innerHTML = $A(arguments).join('');
        return this
    },
    getProperty: function (property) {
        return (property == 'class') ? this.className : this.getAttribute(property)
    },
    getTag: function () {
        return this.tagName.toLowerCase()
    },
    scrollTo: function (x, y) {
        this.scrollLeft = x;
        this.scrollTop = y
    },
    getValue: function () {
        switch (this.getTag()) {
        case 'select':
            if (this.selectedIndex != -1) {
                var opt = this.options[this.selectedIndex];
                return opt.value || opt.text
            }
            break;
        case 'input':
            if (! (this.checked && ['checkbox', 'radio'].test(this.type)) && !['hidden', 'text', 'password'].test(this.type)) break;
        case 'textarea':
            return this.value
        }
        return false
    },
    getSize: function () {
        return {
            'scroll': {
                'x': this.scrollLeft,
                'y': this.scrollTop
            },
            'size': {
                'x': this.offsetWidth,
                'y': this.offsetHeight
            },
            'scrollSize': {
                'x': this.scrollWidth,
                'y': this.scrollHeight
            }
        }
    },
    getPosition: function (overflown) {
        overflown = overflown || [];
        var el = this,
            left = 0,
            top = 0;
        do {
            left += el.offsetLeft || 0;
            top += el.offsetTop || 0;
            el = el.offsetParent
        } while (el);
        overflown.each(function (element) {
            left -= element.scrollLeft || 0;
            top -= element.scrollTop || 0
        });
        return {
            'x': left,
            'y': top
        }
    },
    getTop: function () {
        return this.getPosition().y
    },
    getLeft: function () {
        return this.getPosition().x
    },
    getCoordinates: function (overflown) {
        var position = this.getPosition(overflown);
        var obj = {
            'width': this.offsetWidth,
            'height': this.offsetHeight,
            'left': position.x,
            'top': position.y
        };
        obj.right = obj.left + obj.width;
        obj.bottom = obj.top + obj.height;
        return obj
    }
});
window.addEvent = document.addEvent = Element.prototype.addEvent;
window.removeEvent = document.removeEvent = Element.prototype.removeEvent;
window.removeEvents = document.removeEvents = Element.prototype.removeEvents;
var Garbage = {
    elements: [],
    collect: function (element) {
        Garbage.elements.push(element)
    },
    trash: function () {
        Garbage.collect(window);
        Garbage.collect(document);
        Garbage.elements.each(function (el) {
            el.removeEvents();
            for (var p in Element.prototype) el[p] = null;
            el.extend = null
        })
    }
};
window.addEvent('unload', Garbage.trash);
var Event = new Class({
    initialize: function (event) {
        this.event = event || window.event;
        this.type = this.event.type;
        this.target = this.event.target || this.event.srcElement;
        if (this.target.nodeType == 3) this.target = this.target.parentNode;
        this.shift = this.event.shiftKey;
        this.control = this.event.ctrlKey;
        this.alt = this.event.altKey;
        this.meta = this.event.metaKey;
        if (['DOMMouseScroll', 'mousewheel'].test(this.type)) {
            this.wheel = this.event.wheelDelta ? (this.event.wheelDelta / (window.opera ? -120 : 120)) : -(this.event.detail || 0) / 3
        } else if (this.type.test(/key/)) {
            this.code = this.event.which || this.event.keyCode;
            for (var name in Event.keys) {
                if (Event.keys[name] == this.code) {
                    this.key = name;
                    break
                }
            }
            this.key = this.key || String.fromCharCode(this.code).toLowerCase()
        } else if (this.type.test(/mouse/) || (this.type == 'click')) {
            this.page = {
                'x': this.event.pageX || this.event.clientX + document.documentElement.scrollLeft,
                'y': this.event.pageY || this.event.clientY + document.documentElement.scrollTop
            };
            this.client = {
                'x': this.event.pageX ? this.event.pageX - window.pageXOffset : this.event.clientX,
                'y': this.event.pageY ? this.event.pageY - window.pageYOffset : this.event.clientY
            };
            this.rightClick = (this.event.which == 3) || (this.event.button == 2);
            switch (this.type) {
            case 'mouseover':
                this.relatedTarget = this.event.relatedTarget || this.event.fromElement;
                break;
            case 'mouseout':
                this.relatedTarget = this.event.relatedTarget || this.event.toElement
            }
        }
    },
    stop: function () {
        this.stopPropagation();
        this.preventDefault();
        return this
    },
    stopPropagation: function () {
        if (this.event.stopPropagation) this.event.stopPropagation();
        else this.event.cancelBubble = true;
        return this
    },
    preventDefault: function () {
        if (this.event.preventDefault) this.event.preventDefault();
        else this.event.returnValue = false;
        return this
    }
});
Event.keys = {
    'enter': 13,
    'up': 38,
    'down': 40,
    'left': 37,
    'right': 39,
    'esc': 27,
    'space': 32,
    'backspace': 8,
    'delete': 46
};
Function.extend({
    bindWithEvent: function (bind, args) {
        return this.create({
            'bind': bind,
            'arguments': args,
            'event': Event
        })
    }
});
var Chain = new Class({
    chain: function (fn) {
        this.chains = this.chains || [];
        this.chains.push(fn);
        return this
    },
    callChain: function () {
        if (this.chains && this.chains.length) this.chains.shift().delay(10, this)
    },
    clearChain: function () {
        this.chains = []
    }
});
var Events = new Class({
    addEvent: function (type, fn) {
        if (fn != Class.empty) {
            this.events = this.events || {};
            this.events[type] = this.events[type] || [];
            if (!this.events[type].test(fn)) this.events[type].push(fn)
        }
        return this
    },
    fireEvent: function (type, args, delay) {
        if (this.events && this.events[type]) {
            this.events[type].each(function (fn) {
                fn.create({
                    'bind': this,
                    'delay': delay,
                    'arguments': args
                })()
            },
            this)
        }
        return this
    },
    removeEvent: function (type, fn) {
        if (this.events && this.events[type]) this.events[type].remove(fn);
        return this
    }
});
var Options = new Class({
    setOptions: function (defaults, options) {
        this.options = Object.extend(defaults, options);
        if (this.addEvent) {
            for (var option in this.options) {
                if (($type(this.options[option]) == 'function') && option.test(/^on[A-Z]/)) this.addEvent(option, this.options[option])
            }
        }
        return this
    }
});
var Group = new Class({
    initialize: function () {
        this.instances = $A(arguments);
        this.events = {};
        this.checker = {}
    },
    addEvent: function (type, fn) {
        this.checker[type] = this.checker[type] || {};
        this.events[type] = this.events[type] || [];
        if (this.events[type].test(fn)) return false;
        else this.events[type].push(fn);
        this.instances.each(function (instance, i) {
            instance.addEvent(type, this.check.bind(this, [type, instance, i]))
        },
        this);
        return this
    },
    check: function (type, instance, i) {
        this.checker[type][i] = true;
        var every = this.instances.every(function (current, j) {
            return this.checker[type][j] || false
        },
        this);
        if (!every) return;
        this.instances.each(function (current, j) {
            this.checker[type][j] = false
        },
        this);
        this.events[type].each(function (event) {
            event.call(this, this.instances, instance)
        },
        this)
    }
});

function $E(selector, filter) {
    return ($(filter) || document).getElement(selector)
};

function $ES(selector, filter) {
    return ($(filter) || document).getElementsBySelector(selector)
};
Element.extend({
    getElements: function (selector) {
        var elements = [];
        selector.clean().split(' ').each(function (sel, i) {
            var param = sel.match(/^(\w*|\*)(?:#([\w-]+)|\.([\w-]+))?(?:\[(\w+)(?:([*^$]?=)["']?([^"'\]]*)["']?)?])?$/);
            if (!param) return;
            Filters.selector = param;
            param[1] = param[1] || '*';
            if (i == 0) {
                if (param[2]) {
                    var el = this.getElementById(param[2]);
                    if (!el || ((param[1] != '*') && (Element.prototype.getTag.call(el) != param[1]))) return;
                    elements = [el]
                } else {
                    elements = $A(this.getElementsByTagName(param[1]))
                }
            } else {
                elements = Elements.prototype.getElementsByTagName.call(elements, param[1], true);
                if (param[2]) elements = elements.filter(Filters.id)
            }
            if (param[3]) elements = elements.filter(Filters.className);
            if (param[4]) elements = elements.filter(Filters.attribute)
        },
        this);
        return $$(elements)
    },
    getElementById: function (id) {
        var el = document.getElementById(id);
        if (!el) return false;
        for (var parent = el.parentNode; parent != this; parent = parent.parentNode) {
            if (!parent) return false
        }
        return el
    },
    getElement: function (selector) {
        return this.getElementsBySelector(selector)[0]
    },
    getElementsBySelector: function (selector) {
        var els = [];
        selector.split(',').each(function (sel) {
            els.extend(this.getElements(sel))
        },
        this);
        return $$(els)
    }
});
document.extend({
    getElementsByClassName: function (className) {
        return document.getElements('.' + className)
    },
    getElement: Element.prototype.getElement,
    getElements: Element.prototype.getElements,
    getElementsBySelector: Element.prototype.getElementsBySelector
});
var Filters = {
    selector: [],
    id: function (el) {
        return (el.id == Filters.selector[2])
    },
    className: function (el) {
        return (Element.prototype.hasClass.call(el, Filters.selector[3]))
    },
    attribute: function (el) {
        var current = el.getAttribute(Filters.selector[4]);
        if (!current) return false;
        var operator = Filters.selector[5];
        if (!operator) return true;
        var value = Filters.selector[6];
        switch (operator) {
        case '*=':
            return (current.test(value));
        case '=':
            return (current == value);
        case '^=':
            return (current.test('^' + value));
        case '$=':
            return (current.test(value + '$'))
        }
        return false
    }
};
Elements.extend({
    getElementsByTagName: function (tagName) {
        var found = [];
        this.each(function (el) {
            found.extend(el.getElementsByTagName(tagName))
        });
        return found
    }
});
var Hash = new Class({
    length: 0,
    obj: {},
    initialize: function (obj) {
        this.extend(obj)
    },
    get: function (key) {
        return this.obj[key]
    },
    hasKey: function (key) {
        return this.obj[key] !== undefined
    },
    set: function (key, value) {
        if (value === undefined) return false;
        if (this.obj[key] === undefined) this.length++;
        this.obj[key] = value;
        return this
    },
    remove: function (key) {
        if (this.obj[key] === undefined) return this;
        var obj = {};
        this.length--;
        for (var property in this.obj) {
            if (property != key) obj[property] = this.obj[property]
        }
        this.obj = obj;
        return this
    },
    each: function (fn, bind) {
        for (var property in this.obj) fn.call(bind || this, property, this.obj[property])
    },
    extend: function (obj) {
        for (var property in obj) {
            if (this.obj[property] === undefined) this.length++;
            this.obj[property] = obj[property]
        }
        return this
    },
    empty: function () {
        return (this.length == 0)
    },
    keys: function () {
        var keys = [];
        for (var property in this.obj) keys.push(property);
        return keys
    },
    values: function () {
        var values = [];
        for (var property in this.obj) values.push(this.obj[property]);
        return values
    }
});

function $H(obj) {
    return new Hash(obj)
};
var Color = new Class({
    initialize: function (color, type) {
        if (color.isColor) return color;
        color.isColor = true;
        type = type || (color.push ? 'rgb' : 'hex');
        var rgb, hsb;
        switch (type) {
        case 'rgb':
            rgb = color;
            hsb = rgb.rgbToHsb();
            break;
        case 'hsb':
            rgb = color.hsbToRgb();
            hsb = color;
            break;
        default:
            rgb = color.hexToRgb(true);
            hsb = rgb.rgbToHsb()
        }
        rgb.hsb = hsb;
        return Object.extend(rgb, Color.prototype)
    },
    mix: function () {
        var colors = $A(arguments);
        var alpha = ($type(colors[colors.length - 1]) == 'number') ? colors.pop() : 50;
        var rgb = this.copy();
        colors.each(function (color) {
            color = new Color(color);
            for (var i = 0; i < 3; i++) rgb[i] = Math.round((rgb[i] / 100 * (100 - alpha)) + (color[i] / 100 * alpha))
        });
        return new Color(rgb, 'rgb')
    },
    invert: function () {
        return new Color(this.map(function (value) {
            return 255 - value
        }))
    },
    setHue: function (value) {
        return new Color([value, this.hsb[1], this.hsb[2]], 'hsb')
    },
    setSaturation: function (percent) {
        return new Color([this.hsb[0], percent, this.hsb[2]], 'hsb')
    },
    setBrightness: function (percent) {
        return new Color([this.hsb[0], this.hsb[1], percent], 'hsb')
    }
});

function $RGB(r, g, b) {
    return new Color([r, g, b], 'rgb')
};

function $HSB(h, s, b) {
    return new Color([h, s, b], 'hsb')
};
Array.extend({
    rgbToHsb: function () {
        var red = this[0],
            green = this[1],
            blue = this[2];
        var hue, saturation, brightness;
        var max = Math.max(red, green, blue),
            min = Math.min(red, green, blue);
        var delta = max - min;
        brightness = max / 255;
        saturation = (max != 0) ? delta / max : 0;
        if (saturation == 0) {
            hue = 0
        } else {
            var rr = (max - red) / delta;
            var gr = (max - green) / delta;
            var br = (max - blue) / delta;
            if (red == max) hue = br - gr;
            else if (green == max) hue = 2 + rr - br;
            else hue = 4 + gr - rr;
            hue /= 6;
            if (hue < 0) hue++
        }
        return [Math.round(hue * 360), Math.round(saturation * 100), Math.round(brightness * 100)]
    },
    hsbToRgb: function () {
        var br = Math.round(this[2] / 100 * 255);
        if (this[1] == 0) {
            return [br, br, br]
        } else {
            var hue = this[0] % 360;
            var f = hue % 60;
            var p = Math.round((this[2] * (100 - this[1])) / 10000 * 255);
            var q = Math.round((this[2] * (6000 - this[1] * f)) / 600000 * 255);
            var t = Math.round((this[2] * (6000 - this[1] * (60 - f))) / 600000 * 255);
            switch (Math.floor(hue / 60)) {
            case 0:
                return [br, t, p];
            case 1:
                return [q, br, p];
            case 2:
                return [p, br, t];
            case 3:
                return [p, q, br];
            case 4:
                return [t, p, br];
            case 5:
                return [br, p, q]
            }
        }
        return false
    }
});
window.extend({
    addEvent: function (type, fn) {
        if (type == 'domready') {
            if (this.loaded) fn();
            else if (!this.events || !this.events.domready) {
                var domReady = function () {
                    if (this.loaded) return;
                    this.loaded = true;
                    if (this.timer) this.timer = $clear(this.timer);
                    Element.prototype.fireEvent.call(this, 'domready');
                    this.events.domready = null
                }.bind(this);
                if (document.readyState && this.khtml) {
                    this.timer = function () {
                        if (['loaded', 'complete'].test(document.readyState)) domReady()
                    }.periodical(50)
                } else if (document.readyState && this.ie) {
                    document.write("<script id=ie_ready defer src=javascript:void(0)><\/script>");
                    $('ie_ready').onreadystatechange = function () {
                        if (this.readyState == 'complete') domReady()
                    }
                } else {
                    this.addEvent("load", domReady);
                    document.addEvent("DOMContentLoaded", domReady)
                }
            }
        }
        Element.prototype.addEvent.call(this, type, fn);
        return this
    },
    onDomReady: function (init) {
        return this.addEvent('domready', init)
    }
});
window.extend({
    getWidth: function () {
        if (this.khtml) return this.innerWidth;
        if (this.opera) return document.body.clientWidth;
        return document.documentElement.clientWidth
    },
    getHeight: function () {
        if (this.khtml) return this.innerHeight;
        if (this.opera) return document.body.clientHeight;
        return document.documentElement.clientHeight
    },
    getScrollWidth: function () {
        if (this.ie) return Math.max(document.documentElement.offsetWidth, document.documentElement.scrollWidth);
        if (this.khtml) return document.body.scrollWidth;
        return document.documentElement.scrollWidth
    },
    getScrollHeight: function () {
        if (this.ie) return Math.max(document.documentElement.offsetHeight, document.documentElement.scrollHeight);
        if (this.khtml) return document.body.scrollHeight;
        return document.documentElement.scrollHeight
    },
    getScrollLeft: function () {
        return this.pageXOffset || document.documentElement.scrollLeft
    },
    getScrollTop: function () {
        return this.pageYOffset || document.documentElement.scrollTop
    },
    getSize: function () {
        return {
            'size': {
                'x': this.getWidth(),
                'y': this.getHeight()
            },
            'scrollSize': {
                'x': this.getScrollWidth(),
                'y': this.getScrollHeight()
            },
            'scroll': {
                'x': this.getScrollLeft(),
                'y': this.getScrollTop()
            }
        }
    },
    getPosition: function () {
        return {
            'x': 0,
            'y': 0
        }
    }
});
var Fx = {};
Fx.Base = new Class({
    getOptions: function () {
        return {
            onStart: Class.empty,
            onComplete: Class.empty,
            onCancel: Class.empty,
            transition: Fx.Transitions.sineInOut,
            duration: 500,
            unit: 'px',
            wait: true,
            fps: 50
        }
    },
    initialize: function (options) {
        this.element = this.element || null;
        this.setOptions(this.getOptions(), options);
        if (this.options.initialize) this.options.initialize.call(this)
    },
    step: function () {
        var time = new Date().getTime();
        if (time < this.time + this.options.duration) {
            this.cTime = time - this.time;
            this.setNow();
            this.increase()
        } else {
            this.stop(true);
            this.now = this.to;
            this.increase();
            this.fireEvent('onComplete', this.element, 10);
            this.callChain()
        }
    },
    set: function (to) {
        this.now = to;
        this.increase();
        return this
    },
    setNow: function () {
        this.now = this.compute(this.from, this.to)
    },
    compute: function (from, to) {
        return this.options.transition(this.cTime, from, (to - from), this.options.duration)
    },
    start: function (from, to) {
        if (!this.options.wait) this.stop();
        else if (this.timer) return this;
        this.from = from;
        this.to = to;
        this.time = new Date().getTime();
        this.timer = this.step.periodical(Math.round(1000 / this.options.fps), this);
        this.fireEvent('onStart', this.element);
        return this
    },
    stop: function (end) {
        if (!this.timer) return this;
        this.timer = $clear(this.timer);
        if (!end) this.fireEvent('onCancel', this.element);
        return this
    },
    custom: function (from, to) {
        return this.start(from, to)
    },
    clearTimer: function (end) {
        return this.stop(end)
    }
});
Fx.Base.implement(new Chain);
Fx.Base.implement(new Events);
Fx.Base.implement(new Options);
Fx.Transitions = {
    linear: function (t, b, c, d) {
        return c * t / d + b
    },
    sineInOut: function (t, b, c, d) {
        return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b
    }
};
Fx.CSS = {
    select: function (property, to) {
        if (property.test(/color/i)) return this.Color;
        if (to.test && to.test(' ')) return this.Multi;
        return this.Single
    },
    parse: function (el, property, fromTo) {
        if (!fromTo.push) fromTo = [fromTo];
        var from = fromTo[0],
            to = fromTo[1];
        if (!to && to != 0) {
            to = from;
            from = el.getStyle(property)
        }
        var css = this.select(property, to);
        return {
            from: css.parse(from),
            to: css.parse(to),
            css: css
        }
    }
};
Fx.CSS.Single = {
    parse: function (value) {
        return parseFloat(value)
    },
    getNow: function (from, to, fx) {
        return fx.compute(from, to)
    },
    getValue: function (value, unit) {
        return value + unit
    }
};
Fx.CSS.Multi = {
    parse: function (value) {
        return value.push ? value : value.split(' ').map(function (v) {
            return parseFloat(v)
        })
    },
    getNow: function (from, to, fx) {
        var now = [];
        for (var i = 0; i < from.length; i++) now[i] = fx.compute(from[i], to[i]);
        return now
    },
    getValue: function (value, unit) {
        return value.join(unit + ' ') + unit
    }
};
Fx.CSS.Color = {
    parse: function (value) {
        return value.push ? value : value.hexToRgb(true)
    },
    getNow: function (from, to, fx) {
        var now = [];
        for (var i = 0; i < from.length; i++) now[i] = Math.round(fx.compute(from[i], to[i]));
        return now
    },
    getValue: function (value) {
        return 'rgb(' + value.join(',') + ')'
    }
};
Fx.Style = Fx.Base.extend({
    initialize: function (el, property, options) {
        this.element = $(el);
        this.property = property;
        this.parent(options)
    },
    hide: function () {
        return this.set(0)
    },
    setNow: function () {
        this.now = this.css.getNow(this.from, this.to, this)
    },
    set: function (to) {
        this.css = Fx.CSS.select(this.property, to);
        return this.parent(this.css.parse(to))
    },
    start: function (from, to) {
        if (this.timer && this.options.wait) return this;
        var parsed = Fx.CSS.parse(this.element, this.property, [from, to]);
        this.css = parsed.css;
        return this.parent(parsed.from, parsed.to)
    },
    increase: function () {
        this.element.setStyle(this.property, this.css.getValue(this.now, this.options.unit))
    }
});
Element.extend({
    effect: function (property, options) {
        return new Fx.Style(this, property, options)
    }
});
Fx.Styles = Fx.Base.extend({
    initialize: function (el, options) {
        this.element = $(el);
        this.parent(options)
    },
    setNow: function () {
        for (var p in this.from) this.now[p] = this.css[p].getNow(this.from[p], this.to[p], this)
    },
    set: function (to) {
        var parsed = {};
        this.css = {};
        for (var p in to) {
            this.css[p] = Fx.CSS.select(p, to[p]);
            parsed[p] = this.css[p].parse(to[p])
        }
        return this.parent(parsed)
    },
    start: function (obj) {
        if (this.timer && this.options.wait) return this;
        this.now = {};
        this.css = {};
        var from = {},
            to = {};
        for (var p in obj) {
            var parsed = Fx.CSS.parse(this.element, p, obj[p]);
            from[p] = parsed.from;
            to[p] = parsed.to;
            this.css[p] = parsed.css
        }
        return this.parent(from, to)
    },
    increase: function () {
        for (var p in this.now) this.element.setStyle(p, this.css[p].getValue(this.now[p], this.options.unit))
    }
});
Element.extend({
    effects: function (options) {
        return new Fx.Styles(this, options)
    }
});
Fx.Elements = Fx.Base.extend({
    initialize: function (elements, options) {
        this.elements = $$(elements);
        this.parent(options)
    },
    setNow: function () {
        for (var i in this.from) {
            var iFrom = this.from[i],
                iTo = this.to[i],
                iCss = this.css[i],
                iNow = this.now[i] = {};
            for (var p in iFrom) iNow[p] = iCss[p].getNow(iFrom[p], iTo[p], this)
        }
    },
    set: function (to) {
        var parsed = {};
        this.css = {};
        for (var i in to) {
            var iTo = to[i],
                iCss = this.css[i] = {},
                iParsed = parsed[i] = {};
            for (var p in iTo) {
                iCss[p] = Fx.CSS.select(p, iTo[p]);
                iParsed[p] = iCss[p].parse(iTo[p])
            }
        }
        return this.parent(parsed)
    },
    start: function (obj) {
        if (this.timer && this.options.wait) return this;
        this.now = {};
        this.css = {};
        var from = {},
            to = {};
        for (var i in obj) {
            var iProps = obj[i],
                iFrom = from[i] = {},
                iTo = to[i] = {},
                iCss = this.css[i] = {};
            for (var p in iProps) {
                var parsed = Fx.CSS.parse(this.elements[i], p, iProps[p]);
                iFrom[p] = parsed.from;
                iTo[p] = parsed.to;
                iCss[p] = parsed.css
            }
        }
        return this.parent(from, to)
    },
    increase: function () {
        for (var i in this.now) {
            var iNow = this.now[i],
                iCss = this.css[i];
            for (var p in iNow) this.elements[i].setStyle(p, iCss[p].getValue(iNow[p], this.options.unit))
        }
    }
});
Fx.Scroll = Fx.Base.extend({
    initialize: function (element, options) {
        this.now = [];
        this.element = $(element);
        this.addEvent('onStart', function () {
            this.element.addEvent('mousewheel', this.stop.bind(this, false))
        }.bind(this));
        this.removeEvent('onComplete', function () {
            this.element.removeEvent('mousewheel', this.stop.bind(this, false))
        }.bind(this));
        this.parent(options)
    },
    setNow: function () {
        for (var i = 0; i < 2; i++) this.now[i] = this.compute(this.from[i], this.to[i])
    },
    scrollTo: function (x, y) {
        if (this.timer && this.options.wait) return this;
        var el = this.element.getSize();
        var values = {
            'x': x,
            'y': y
        };
        for (var z in el.size) {
            var max = el.scrollSize[z] - el.size[z];
            if ($chk(values[z])) values[z] = ($type(values[z]) == 'number') ? Math.max(Math.min(values[z], max), 0) : max;
            else values[z] = el.scroll[z]
        }
        return this.start([el.scroll.x, el.scroll.y], [values.x, values.y])
    },
    toTop: function () {
        return this.scrollTo(false, 0)
    },
    toBottom: function () {
        return this.scrollTo(false, 'full')
    },
    toLeft: function () {
        return this.scrollTo(0, false)
    },
    toRight: function () {
        return this.scrollTo('full', false)
    },
    toElement: function (el) {
        return this.scrollTo($(el).getLeft(), $(el).getTop())
    },
    increase: function () {
        this.element.scrollTo(this.now[0], this.now[1])
    }
});
Fx.Slide = Fx.Base.extend({
    initialize: function (el, options) {
        this.element = $(el).setStyle('margin', 0);
        this.wrapper = new Element('div').injectAfter(this.element).setStyle('overflow', 'hidden').adopt(this.element);
        this.setOptions({
            'mode': 'vertical'
        },
        options);
        this.now = [];
        this.parent(this.options)
    },
    setNow: function () {
        for (var i = 0; i < 2; i++) this.now[i] = this.compute(this.from[i], this.to[i])
    },
    vertical: function () {
        this.margin = 'top';
        this.layout = 'height';
        this.offset = this.element.offsetHeight;
        return [this.element.getStyle('margin-top').toInt(), this.wrapper.getStyle('height').toInt()]
    },
    horizontal: function () {
        this.margin = 'left';
        this.layout = 'width';
        this.offset = this.element.offsetWidth;
        return [this.element.getStyle('margin-left').toInt(), this.wrapper.getStyle('width').toInt()]
    },
    slideIn: function (mode) {
        return this.start(this[mode || this.options.mode](), [0, this.offset])
    },
    slideOut: function (mode) {
        return this.start(this[mode || this.options.mode](), [-this.offset, 0])
    },
    hide: function (mode) {
        this[mode || this.options.mode]();
        return this.set([-this.offset, 0])
    },
    show: function (mode) {
        this[mode || this.options.mode]();
        return this.set([0, this.offset])
    },
    toggle: function (mode) {
        if (this.wrapper.offsetHeight == 0 || this.wrapper.offsetWidth == 0) return this.slideIn(mode);
        else return this.slideOut(mode)
    },
    increase: function () {
        this.element.setStyle('margin-' + this.margin, this.now[0] + this.options.unit);
        this.wrapper.setStyle(this.layout, this.now[1] + this.options.unit)
    }
});
Fx.Transitions = {
    linear: function (t, b, c, d) {
        return c * t / d + b
    },
    quadIn: function (t, b, c, d) {
        return c * (t /= d) * t + b
    },
    quadOut: function (t, b, c, d) {
        return -c * (t /= d) * (t - 2) + b
    },
    quadInOut: function (t, b, c, d) {
        if ((t /= d / 2) < 1) return c / 2 * t * t + b;
        return -c / 2 * ((--t) * (t - 2) - 1) + b
    },
    cubicIn: function (t, b, c, d) {
        return c * (t /= d) * t * t + b
    },
    cubicOut: function (t, b, c, d) {
        return c * ((t = t / d - 1) * t * t + 1) + b
    },
    cubicInOut: function (t, b, c, d) {
        if ((t /= d / 2) < 1) return c / 2 * t * t * t + b;
        return c / 2 * ((t -= 2) * t * t + 2) + b
    },
    quartIn: function (t, b, c, d) {
        return c * (t /= d) * t * t * t + b
    },
    quartOut: function (t, b, c, d) {
        return -c * ((t = t / d - 1) * t * t * t - 1) + b
    },
    quartInOut: function (t, b, c, d) {
        if ((t /= d / 2) < 1) return c / 2 * t * t * t * t + b;
        return -c / 2 * ((t -= 2) * t * t * t - 2) + b
    },
    quintIn: function (t, b, c, d) {
        return c * (t /= d) * t * t * t * t + b
    },
    quintOut: function (t, b, c, d) {
        return c * ((t = t / d - 1) * t * t * t * t + 1) + b
    },
    quintInOut: function (t, b, c, d) {
        if ((t /= d / 2) < 1) return c / 2 * t * t * t * t * t + b;
        return c / 2 * ((t -= 2) * t * t * t * t + 2) + b
    },
    sineIn: function (t, b, c, d) {
        return -c * Math.cos(t / d * (Math.PI / 2)) + c + b
    },
    sineOut: function (t, b, c, d) {
        return c * Math.sin(t / d * (Math.PI / 2)) + b
    },
    sineInOut: function (t, b, c, d) {
        return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b
    },
    expoIn: function (t, b, c, d) {
        return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b
    },
    expoOut: function (t, b, c, d) {
        return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b
    },
    expoInOut: function (t, b, c, d) {
        if (t == 0) return b;
        if (t == d) return b + c;
        if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b;
        return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b
    },
    circIn: function (t, b, c, d) {
        return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b
    },
    circOut: function (t, b, c, d) {
        return c * Math.sqrt(1 - (t = t / d - 1) * t) + b
    },
    circInOut: function (t, b, c, d) {
        if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;
        return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b
    },
    elasticIn: function (t, b, c, d, a, p) {
        if (t == 0) return b;
        if ((t /= d) == 1) return b + c;
        if (!p) p = d * .3;
        if (!a) a = 1;
        if (a < Math.abs(c)) {
            a = c;
            var s = p / 4
        } else var s = p / (2 * Math.PI) * Math.asin(c / a);
        return - (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b
    },
    elasticOut: function (t, b, c, d, a, p) {
        if (t == 0) return b;
        if ((t /= d) == 1) return b + c;
        if (!p) p = d * .3;
        if (!a) a = 1;
        if (a < Math.abs(c)) {
            a = c;
            var s = p / 4
        } else var s = p / (2 * Math.PI) * Math.asin(c / a);
        return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b
    },
    elasticInOut: function (t, b, c, d, a, p) {
        if (t == 0) return b;
        if ((t /= d / 2) == 2) return b + c;
        if (!p) p = d * (.3 * 1.5);
        if (!a) a = 1;
        if (a < Math.abs(c)) {
            a = c;
            var s = p / 4
        } else var s = p / (2 * Math.PI) * Math.asin(c / a);
        if (t < 1) return -.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
        return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * .5 + c + b
    },
    backIn: function (t, b, c, d, s) {
        if (!s) s = 1.70158;
        return c * (t /= d) * t * ((s + 1) * t - s) + b
    },
    backOut: function (t, b, c, d, s) {
        if (!s) s = 1.70158;
        return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b
    },
    backInOut: function (t, b, c, d, s) {
        if (!s) s = 1.70158;
        if ((t /= d / 2) < 1) return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;
        return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b
    },
    bounceIn: function (t, b, c, d) {
        return c - Fx.Transitions.bounceOut(d - t, 0, c, d) + b
    },
    bounceOut: function (t, b, c, d) {
        if ((t /= d) < (1 / 2.75)) {
            return c * (7.5625 * t * t) + b
        } else if (t < (2 / 2.75)) {
            return c * (7.5625 * (t -= (1.5 / 2.75)) * t + .75) + b
        } else if (t < (2.5 / 2.75)) {
            return c * (7.5625 * (t -= (2.25 / 2.75)) * t + .9375) + b
        } else {
            return c * (7.5625 * (t -= (2.625 / 2.75)) * t + .984375) + b
        }
    },
    bounceInOut: function (t, b, c, d) {
        if (t < d / 2) return Fx.Transitions.bounceIn(t * 2, 0, c, d) * .5 + b;
        return Fx.Transitions.bounceOut(t * 2 - d, 0, c, d) * .5 + c * .5 + b
    }
};
var Drag = {};
Drag.Base = new Class({
    getOptions: function () {
        return {
            handle: false,
            unit: 'px',
            onStart: Class.empty,
            onBeforeStart: Class.empty,
            onComplete: Class.empty,
            onSnap: Class.empty,
            onDrag: Class.empty,
            limit: false,
            modifiers: {
                x: 'left',
                y: 'top'
            },
            snap: 6
        }
    },
    initialize: function (el, options) {
        this.setOptions(this.getOptions(), options);
        this.element = $(el);
        this.handle = $(this.options.handle) || this.element;
        this.mouse = {
            'now': {},
            'pos': {}
        };
        this.value = {
            'start': {},
            'now': {}
        };
        this.bound = {
            'start': this.start.bindWithEvent(this)
        };
        this.attach();
        if (this.options.initialize) this.options.initialize.call(this)
    },
    attach: function () {
        this.handle.addEvent('mousedown', this.bound.start)
    },
    start: function (event) {
        this.fireEvent('onBeforeStart', this.element);
        this.mouse.start = event.page;
        var limit = this.options.limit;
        this.limit = {
            'x': [],
            'y': []
        };
        for (var z in this.options.modifiers) {
            this.value.now[z] = this.element.getStyle(this.options.modifiers[z]).toInt();
            this.mouse.pos[z] = event.page[z] - this.value.now[z];
            if (limit && limit[z]) {
                for (var i = 0; i < 2; i++) {
                    if ($chk(limit[z][i])) this.limit[z][i] = limit[z][i].apply ? limit[z][i].call(this) : limit[z][i]
                }
            }
        }
        this.bound.drag = this.drag.bindWithEvent(this);
        this.bound.stop = this.stop.bind(this);
        this.bound.move = this.options.snap ? this.checkAndDrag.bindWithEvent(this) : this.bound.drag;
        document.addEvent('mousemove', this.bound.move);
        document.addEvent('mouseup', this.bound.stop);
        this.fireEvent('onStart', this.element);
        event.stop()
    },
    checkAndDrag: function (event) {
        var distance = Math.round(Math.sqrt(Math.pow(event.page.x - this.mouse.start.x, 2) + Math.pow(event.page.y - this.mouse.start.y, 2)));
        if (distance > this.options.snap) {
            document.removeEvent('mousemove', this.bound.move);
            this.bound.move = this.bound.drag;
            document.addEvent('mousemove', this.bound.move);
            this.drag(event);
            this.fireEvent('onSnap', this.element)
        }
        event.stop()
    },
    drag: function (event) {
        this.out = false;
        this.mouse.now = event.page;
        for (var z in this.options.modifiers) {
            this.value.now[z] = this.mouse.now[z] - this.mouse.pos[z];
            if (this.limit[z]) {
                if ($chk(this.limit[z][1]) && (this.value.now[z] > this.limit[z][1])) {
                    this.value.now[z] = this.limit[z][1];
                    this.out = true
                } else if ($chk(this.limit[z][0]) && (this.value.now[z] < this.limit[z][0])) {
                    this.value.now[z] = this.limit[z][0];
                    this.out = true
                }
            }
            this.element.setStyle(this.options.modifiers[z], this.value.now[z] + this.options.unit)
        }
        this.fireEvent('onDrag', this.element);
        event.stop()
    },
    detach: function () {
        this.handle.removeEvent('mousedown', this.bound.start)
    },
    stop: function () {
        document.removeEvent('mousemove', this.bound.move);
        document.removeEvent('mouseup', this.bound.stop);
        this.fireEvent('onComplete', this.element)
    }
});
Drag.Base.implement(new Events);
Drag.Base.implement(new Options);
Element.extend({
    makeResizable: function (options) {
        return new Drag.Base(this, Object.extend(options || {},
        {
            modifiers: {
                x: 'width',
                y: 'height'
            }
        }))
    }
});
Drag.Move = Drag.Base.extend({
    getExtended: function () {
        return {
            droppables: [],
            container: false,
            overflown: []
        }
    },
    initialize: function (el, options) {
        this.setOptions(this.getExtended(), options);
        this.element = $(el);
        this.position = this.element.getStyle('position');
        this.droppables = $$(this.options.droppables);
        if (! ['absolute', 'relative'].test(this.position)) this.position = 'absolute';
        var top = this.element.getStyle('top').toInt();
        var left = this.element.getStyle('left').toInt();
        if (this.position == 'absolute') {
            top = $chk(top) ? top : this.element.getTop();
            left = $chk(left) ? left : this.element.getLeft()
        } else {
            top = $chk(top) ? top : 0;
            left = $chk(left) ? left : 0
        }
        this.element.setStyles({
            'top': top + 'px',
            'left': left + 'px',
            'position': this.position
        });
        this.parent(this.element, this.options)
    },
    start: function (event) {
        this.container = $(this.options.container);
        if (this.container) {
            var cont = this.container.getCoordinates();
            var el = this.element.getCoordinates();
            if (this.position == 'absolute') {
                this.options.limit = {
                    'x': [cont.left, cont.right - el.width],
                    'y': [cont.top, cont.bottom - el.height]
                }
            } else {
                var diffx = el.left - this.element.getStyle('left').toInt();
                var diffy = el.top - this.element.getStyle('top').toInt();
                this.options.limit = {
                    'y': [-(diffy) + cont.top, cont.bottom - diffy - el.height],
                    'x': [-(diffx) + cont.left, cont.right - diffx - el.width]
                }
            }
        }
        this.parent(event)
    },
    drag: function (event) {
        this.parent(event);
        if (this.out) return this;
        this.droppables.each(function (drop) {
            if (this.checkAgainst($(drop))) {
                if (!drop.overing) drop.fireEvent('over', [this.element, this]);
                drop.overing = true
            } else {
                if (drop.overing) drop.fireEvent('leave', [this.element, this]);
                drop.overing = false
            }
        },
        this);
        return this
    },
    checkAgainst: function (el) {
        el = el.getCoordinates(this.options.overflown);
        return (this.mouse.now.x > el.left && this.mouse.now.x < el.right && this.mouse.now.y < el.bottom && this.mouse.now.y > el.top)
    },
    stop: function () {
        this.parent();
        this.timer = $clear(this.timer);
        if (this.out) return this;
        var dropped = false;
        this.droppables.each(function (drop) {
            if (this.checkAgainst(drop)) {
                drop.fireEvent('drop', [this.element, this]);
                dropped = true
            }
        },
        this);
        if (!dropped) this.element.fireEvent('drop', this);
        return this
    }
});
Element.extend({
    makeDraggable: function (options) {
        return new Drag.Move(this, options)
    }
});
var XHR = new Class({
    getOptions: function () {
        return {
            method: 'post',
            async: true,
            onRequest: Class.empty,
            onStateChange: Class.empty,
            onSuccess: Class.empty,
            onFailure: Class.empty,
            headers: {},
            isSuccess: this.isSuccess
        }
    },
    initialize: function (options) {
        this.transport = window.XMLHttpRequest ? new XMLHttpRequest() : (window.ie ? new ActiveXObject('Microsoft.XMLHTTP') : false);
        this.setOptions(this.getOptions(), options);
        if (!this.transport) return;
        this.headers = {};
        if (this.options.initialize) this.options.initialize.call(this)
    },
    onStateChange: function () {
        this.fireEvent('onStateChange', this.transport);
        if (this.transport.readyState != 4) return;
        var status = 0;
        try {
            status = this.transport.status
        } catch(e) {}
        if (this.options.isSuccess(status)) this.onSuccess();
        else this.onFailure();
        this.transport.onreadystatechange = Class.empty
    },
    isSuccess: function (status) {
        return ((status >= 200) && (status < 300))
    },
    onSuccess: function () {
        this.response = {
            'text': this.transport.responseText,
            'xml': this.transport.responseXML
        };
        this.fireEvent('onSuccess', [this.response.text, this.response.xml]);
        this.callChain()
    },
    onFailure: function () {
        this.fireEvent('onFailure', this.transport)
    },
    setHeader: function (name, value) {
        this.headers[name] = value;
        return this
    },
    send: function (url, data) {
        this.fireEvent('onRequest');
        this.transport.open(this.options.method, url, this.options.async);
        this.transport.onreadystatechange = this.onStateChange.bind(this);
        if ((this.options.method == 'post') && this.transport.overrideMimeType) this.setHeader('Connection', 'close');
        Object.extend(this.headers, this.options.headers);
        for (var type in this.headers) this.transport.setRequestHeader(type, this.headers[type]);
        this.transport.send(data);
        return this
    }
});
XHR.implement(new Chain);
XHR.implement(new Events);
XHR.implement(new Options);
var Ajax = XHR.extend({
    moreOptions: function () {
        return {
            postBody: null,
            update: null,
            onComplete: Class.empty,
            evalScripts: false,
            evalResponse: false,
            encoding: 'utf-8'
        }
    },
    initialize: function (url, options) {
        this.addEvent('onSuccess', this.onComplete);
        this.setOptions(this.moreOptions(), options);
        this.parent(this.options);
        if (! ['post', 'get'].test(this.options.method)) {
            this._method = '_method=' + this.options.method;
            this.options.method = 'post'
        }
        if (this.options.method == 'post') {
            var encoding = (this.options.encoding) ? '; charset=' + this.options.encoding : '';
            this.setHeader('Content-type', 'application/x-www-form-urlencoded' + encoding)
        }
        this.setHeader('X-Requested-With', 'XMLHttpRequest');
        this.setHeader('Accept', 'text/javascript, text/html, application/xml, text/xml, */*');
        this.url = url
    },
    onComplete: function () {
        if (this.options.update) $(this.options.update).setHTML(this.response.text);
        if (this.options.evalResponse) eval(this.response.text);
        if (this.options.evalScripts) this.evalScripts.delay(30, this);
        this.fireEvent('onComplete', [this.response.text, this.response.xml], 20)
    },
    request: function () {
        var data = null;
        switch ($type(this.options.postBody)) {
        case 'element':
            data = $(this.options.postBody).toQueryString();
            break;
        case 'object':
            data = Object.toQueryString(this.options.postBody);
            break;
        case 'string':
            data = this.options.postBody
        }
        if (this._method) data = (data) ? [this._method, data].join('&') : this._method;
        return this.send(this.url, data)
    },
    evalScripts: function () {
        var script, regexp = /<script[^>]*>([\s\S]*?)<\/script>/gi;
        while ((script = regexp.exec(this.response.text))) eval(script[1])
    }
});
Object.toQueryString = function (source) {
    var queryString = [];
    for (var property in source) queryString.push(encodeURIComponent(property) + '=' + encodeURIComponent(source[property]));
    return queryString.join('&')
};
Element.extend({
    send: function (options) {
        options = Object.extend(options || {},
        {
            postBody: this.toQueryString(),
            method: 'post'
        });
        return new Ajax(this.getProperty('action'), options).request()
    },
    toObject: function () {
        var obj = {};
        $$(this.getElementsByTagName('input'), this.getElementsByTagName('select'), this.getElementsByTagName('textarea')).each(function (el) {
            var name = $(el).name;
            var value = el.getValue();
            if ((value !== false) && name) obj[name] = value
        });
        return obj
    },
    toQueryString: function () {
        return Object.toQueryString(this.toObject())
    }
});
var Cookie = {
    set: function (key, value, options) {
        options = Object.extend({
            domain: false,
            path: false,
            duration: 365
        },
        options || {});
        value = escape(value);
        if (options.domain) value += "; domain=" + options.domain;
        if (options.path) value += "; path=" + options.path;
        if (options.duration) {
            var date = new Date();
            date.setTime(date.getTime() + (options.duration * 86400000));
            value += "; expires=" + date.toGMTString()
        }
        document.cookie = key + "=" + value
    },
    get: function (key) {
        var value = document.cookie.match('(?:^|;)\\s*' + key + '=([^;]*)');
        return value ? unescape(value[1]) : false
    },
    remove: function (key) {
        this.set(key, '', {
            duration: -1
        })
    }
};
var Json = {
    toString: function (obj) {
        switch ($type(obj)) {
        case 'string':
            return '"' + obj.replace(new RegExp('(["\\\\])', 'g'), '\\$1') + '"';
        case 'array':
            return '[' + obj.map(function (ar) {
                return Json.toString(ar)
            }).join(',') + ']';
        case 'object':
            var string = [];
            for (var property in obj) string.push('"' + property + '":' + Json.toString(obj[property]));
            return '{' + string.join(',') + '}'
        }
        return String(obj)
    },
    evaluate: function (str) {
        return eval('(' + str + ')')
    }
};
Json.Remote = XHR.extend({
    initialize: function (url, options) {
        this.url = url;
        this.addEvent('onSuccess', this.onComplete);
        this.parent(options);
        this.setHeader('X-Request', 'JSON')
    },
    send: function (obj) {
        return this.parent(this.url, 'json=' + Json.toString(obj))
    },
    onComplete: function () {
        this.fireEvent('onComplete', Json.evaluate(this.response.text))
    }
});
var Asset = {
    javascript: function (source, properties) {
        return Asset.create('script', {
            'type': 'text/javascript',
            'src': source
        },
        properties, true)
    },
    css: function (source, properties) {
        return Asset.create('link', {
            'rel': 'stylesheet',
            'media': 'screen',
            'type': 'text/css',
            'href': source
        },
        properties, true)
    },
    image: function (source, properties) {
        properties = Object.extend({
            'src': source,
            'onload': Class.empty,
            'onabort': Class.empty,
            'onerror': Class.empty
        },
        properties || {});
        var image = new Image();
        image.onload = function () {
            if (arguments.callee.done) return false;
            arguments.callee.done = true;
            this.onload = null;
            return properties.onload.call(this)
        };
        image.onerror = properties.onerror;
        image.onabort = properties.onabort;
        image.src = properties.src;
        return Asset.create('img', properties)
    },
    images: function (sources, options) {
        options = Object.extend({
            onComplete: Class.empty,
            onProgress: Class.empty
        },
        options || {});
        if (!sources.push) sources = [sources];
        var images = [];
        counter = 0;
        sources.each(function (source) {
            var img = new Asset.image(source, {
                'onload': function () {
                    counter++;
                    options.onProgress();
                    if (counter == sources.length) options.onComplete()
                }
            });
            images.push(img)
        });
        return images
    },
    create: function (type, defaults, properties, inject) {
        Object.extend(defaults, properties || {});
        var element = new Element(type).setProperties(defaults);
        if (inject) element.injectInside($$('head')[0]);
        return element
    }
};