function loadIframe(url, id) {
	document.getElementById(id).src = url;
}





function change(id, newClass)
{
	if(document.getElementById(id) == null)
	{
		//do nothing
	}
	else
	{
		var identity = document.getElementById(id);
		identity.className = newClass;
	}
}





function change(id, newClass, URL)
{
	if(document.getElementById(id) == null)
	{
		//do nothing
	}
	else
	{
		var identity = document.getElementById(id);
		identity.className = newClass;
		if(URL){
			id=id+"_a";
			loadIframe(URL,id);
		}
	}
}