n = (document.layers)? true:false;
		ie = (document.all)? true:false;
		
		function locPop(url,target,locW,locH,scraul){
			var locX = (screen.availWidth-locW)/2;
			var locY = (screen.availHeight-locH)/2;
			param = "width="+locW+",height="+locH+",left="+locX+",top="+locY+",scrollbars="+scraul;
			popup = window.open(url,target,param);
		}