/*  Prototype JavaScript framework
 *  (c) 2005 Sam Stephenson <sam@conio.net>
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
/*--------------------------------------------------------------------------*/

//note: modified & stripped down version of prototype, to be used with moo.fx by mad4milk (http://moofx.mad4milk.net).

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

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

Function.prototype.bind = function(object) {
    var __method = this;
    return function() {
        return __method.apply(object, arguments);
    }
}

Function.prototype.bindAsEventListener = function(object) {
var __method = this;
    return function(event) {
        __method.call(object, event || window.event);
    }
}

function $() {
    if (arguments.length == 1) return get$(arguments[0]);
    var elements = [];
    $c(arguments).each(function(el){
        elements.push(get$(el));
    });
    return elements;

    function get$(el){
        if (typeof el == 'string') el = document.getElementById(el);
        return el;
    }
}

if (!window.Element) var Element = new Object();

Object.extend(Element, {
    remove: function(element) {
        element = $(element);
        element.parentNode.removeChild(element);
    },

    hasClassName: function(element, className) {
        element = $(element);
        if (!element) return;
        var hasClass = false;
        element.className.split(' ').each(function(cn){
            if (cn == className) hasClass = true;
        });
        return hasClass;
    },

    addClassName: function(element, className) {
        element = $(element);
        Element.removeClassName(element, className);
        element.className += ' ' + className;
    },
  
    removeClassName: function(element, className) {
        element = $(element);
        if (!element) return;
        var newClassName = '';
        element.className.split(' ').each(function(cn, i){
            if (cn != className){
                if (i > 0) newClassName += ' ';
                newClassName += cn;
            }
        });
        element.className = newClassName;
    },

    cleanWhitespace: function(element) {
        element = $(element);
        $c(element.childNodes).each(function(node){
            if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) Element.remove(node);
        });
    },

    find: function(element, what) {
        element = $(element)[what];
        while (element.nodeType != 1) element = element[what];
        return element;
    }
});

var Position = {
    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];
    }
};

document.getElementsByClassName = function(className) {
    var children = document.getElementsByTagName('*') || document.all;
    var elements = [];
    $c(children).each(function(child){
        if (Element.hasClassName(child, className)) elements.push(child);
    });  
    return elements;
}

//useful array functions
Array.prototype.each = function(func){
    for(var i=0;ob=this[i];i++) func(ob, i);
}

function $c(array){
    var nArray = [];
    for (i=0;el=array[i];i++) nArray.push(el);
    return nArray;
}