/**
 * @author lance
 */
Utilities={};
Utilities.createElement=function(){}
Utilities.includeJS=function(filepaths)
{
	for(var i=0;i<filepaths.length;i++)
	{
		document.write('<script type="text/javascript" src="'+filepaths[i]+'"></script>');
	}
}
Utilities.includeCSS=function(filepaths)
{
	for(var i=0;i<filepaths.lenght;i++)
	{
		document.write('<link href="'+filepaths[i]+'" rel="stylesheet" type="text/css"');
	}
}
Utilities.getElement=function(id)
{
	return document.getElementById(id);
}
Utilities.debug=function(val)
{
	document.write('<div id="debug"></div>')
	this.getElement('debug').innerHTML+=val+"<br />";
}
Utilities.toggle=function()
{
	this.getElement(id).style.display=(this.getElement(id).style.display=='')?'none':'';
}
Utilities.createElement=function(e,obj)
{
	var element=document.createElement(e);
	for(prop in obj)
	{
		element[prop]=obj[prop];
	}
	return element;
}
Utilities.appendChild=function()
{
	if(this.appendChild.arguments.length>1)
	{
		var a=this.appendChild.arguments[0];
		for(i=1;i<this.appendChild.arguments.length;i++)
		{
			if(arguments[i])
			{
				a.appendChild(this.appendChild.arguments[i]);
			}
		}
		return a;
		
	}
	else
	{
		return null;
	}
}

Utilities.removeChildren=function(node)
{
	if(node==null)
	{
		return;
	}
	while(node.hasChildNodes())
	{
		node.removeChild(node.firstChild);
	}
}
Utilities.addListener=function(obj,eventName,listener)
{
	if(obj.attachEvent)
	{
		obj.attachEvent("on"+eventName,lister);
	}
	else if(obj.addEventListener)
	{
		obj.addEventListener(eventName,listener,false);
	}
}
Utilities.removeListener=function(obj,eventName,listener)
{
	if(obj.detachEvent)
	{
		obj.detachEvent("on"+eventName,listener);
	}
	else if(obj.removeEventListenter)
	{
		obj.removeEventListenter(eventName,listener,false);
	}
	else
	{
		return false;
	}
	return true;
}
Utilities.changeOpac=function(opacity,id)
{
	var object=Utilities.getElement(id).style;
	object.opacity=(opacity/100);
	object.MozOpacity=(opacity/100);
	object.KhtmlOpacity=(opacity/100);
	object.filter="alpha(opacity="+opacity+")";
}