/*  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);
		}
	}
}

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


var $c= $A= function(iterable) {
	if (!iterable) return [];
	if (iterable.toArray) {
		return iterable.toArray();
	} else {
		var results = [];
		for (var i = 0; i < iterable.length; i++)
			results.push(iterable[i]);
		return results;
	}
};

Function.prototype.b= Function.prototype.bind = function() {
  var __method = this, args = $c(arguments), object = args.shift();
  return function() {
    return __method.apply(object, args.concat($c(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= [];
	$A(arguments).each(function(el){
		elements.push(get$(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.iterate = function(func){
	for(var i=0;i<this.length;i++) func(this[i], i);
}
if (!Array.prototype.each) Array.prototype.each = Array.prototype.iterate;




var $CSS= function(e, css, b) {
	e= $(e); if (!e) return;
	if (b== null) b= true;
	var rx= new RegExp("\\b"+ css+ "\\b");
	if (b && !e.className.match(rx))
		e.className+= ' '+ css;
	else if (!b && e.className.match(rx))
		e.className= e.className.replace(rx, '');
};

var $OBS= function(e, name, fct) {
	e= $(e); if (!e) return;
	if (e.addEventListener) {
		e.addEventListener(name, fct, true);
	} else if (e.attachEvent) {
		e.attachEvent('on' + name, fct);
	}
};


function $ERR(str) {
	var e= document.getElementById('_ERROR');
	if (!e) {
		var b= document.getElementsByTagName('body')[0];
		var e= document.createElement('div');
		b.appendChild(e);
		with (e.style) {
			border= '1px solid red';
			position= 'absolute';
			bottom= '20px';
			right= '20px';
			width= '400px';
			overflow= 'auto';
			background= 'white';
			color= 'black';
			font= '10px Arial';
		};
		e.id= '_ERROR';
		document._ERRMSGS= [];
		e.onclick= function() {
			document._ERRMSGS= [];
			this.style.display= 'none';
		}.bind(e);
	}
	document._ERRMSGS.push(str);
	e.style.display= '';
	e.innerHTML= document._ERRMSGS.join('<br />');
	
}