var i = 0;
		var last, timer;

		function start() {
			last = order.length;
			} 
			
		function loopIt() {
			popupIt();
			i++;
			if (i >= last) { return; }   //done
			timer = setTimeout('loopIt()',delay); 
			}
		
		function popupIt() {
			document.getElementById("layer"+order[i]).style.visibility = "visible";
			}