var prevTab="";
	function DisplayLayer(objID){
		if (navigator.appName == "Microsoft Internet Explorer"){
			var objLayer = document.all(objID);
			var objLayerprev;
				if(prevTab!=""){
					objLayerprev= document.all(prevTab);
					}
				if (objLayer.style.display == ""){
					objLayer.style.display = "none";
					}
				else{
					objLayer.style.display = "";
						if(prevTab!="" && prevTab!= objID){
							objLayerprev.style.display = "none";
							}
						}
					}
				else{
					var layer = document.layers[objID];
					layer = document.layers[0];
					document.layers
					layer.style.visibility = "hide";
					//alert("Netscape");
					//alert(navigator.appVersion);
					}
					prevTab=objID;
			}