function toggle(id, curDepth){
			ul = "ul_" + id;
			img = "img_" + id;

			ulElement = document.getElementById(ul);
			imgElement = document.getElementById(img);

			if (ulElement){
				if (ulElement.className == 'closed'){
					ulElement.className = "open";
					imgElement.src = "/interface/tree/" + curDepth + "_diamond.gif";
				}else{
					ulElement.className = "closed";
					imgElement.src = "/interface/tree/" + curDepth + "_square.gif";
				}
			}
		}
		
		document.write( "<style type='text/css'>.open {display: block;}" + ".closed {display: none; } <\/style>");