function swap(itemoff, itemon)
			{
				obj = document.getElementById(itemoff);
				obj.style.display = "none";
				obj = document.getElementById(itemon);
				obj.style.display = "block";
			}
			
			//Author:			JoshuaChen
			//Date:				2004/04/14
			//Description:		Expand Menu, change element's style.
			
			function getExpand(item)
			{
				obj = document.getElementById(item);
				visible = (obj.style.display != "none");
				key = document.getElementById("x" + item);
			
				if (visible)
				{
					obj.style.display = "none";
					key.style.fontWeight = "normal";
				}
				else
				{
					obj.style.display = "block";
					key.style.fontWeight = "bold";
				}
			}
			
		function changeBG(IDtochange,newvalue) 						
			{document.getElementById(IDtochange).style.backgroundImage=newvalue;}