/*	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);
		}
	}
});

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

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];
	}
}