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/* 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: this is a 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 $() {
 var elements = new Array();

 for (var i = 0; i < arguments.length; i++) {
	var element = arguments[i];
	if (typeof element == 'string')
	 element = document.getElementById(element);

	if (arguments.length == 1)
	 return element;

	elements.push(element);
 }

 return elements;
}

//-------------------------

document.getElementsByClassName = function(className) {
 var children = document.getElementsByTagName('*') || document.all;
 var elements = new Array();

 for (var i = 0; i < children.length; i++) {
	var child = children[i];
	var classNames = child.className.split(' ');
	for (var j = 0; j < classNames.length; j++) {
	 if (classNames[j] == className) {
		elements.push(child);
		break;
	 }
	}
 }

 return elements;
}

//-------------------------

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 a = element.className.split(' ');
	for (var i = 0; i < a.length; i++) {
	 if (a[i] == className)
		return true;
	}
	return false;
 },

 addClassName: function(element, className) {
	element = $(element);
	Element.removeClassName(element, className);
	element.className += ' ' + className;
 },

 removeClassName: function(element, className) {
	element = $(element);
	if (!element)
	 return;
	var newClassName = '';
	var a = element.className.split(' ');
	for (var i = 0; i < a.length; i++) {
	 if (a[i] != className) {
		if (i > 0)
		 newClassName += ' ';
		newClassName += a[i];
	 }
	}
	element.className = newClassName;
 },

 // removes whitespace-only text node children
 cleanWhitespace: function(element) {
	element = $(element);
	for (var i = 0; i < element.childNodes.length; i++) {
	 var node = element.childNodes[i];
	 if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
		Element.remove(node);
	}
 }
});