var ns=(document.layers);
			var ie=(document.all);
			var w3=(document.getElementById && !ie);


			function showLayer(id)
			{
				if(ie)		adDiv=eval('document.all.' + id + '.style');
				else if(ns)	adDiv=eval('document.layers["' + id + '"]');
				else if(w3)	adDiv=eval('document.getElementById("' + id + '").style');
				if (ie||w3)
				adDiv.visibility="visible";
				else
				adDiv.visibility ="show";
			}

			function hideLayer(id)
			{
				if(ie)		adDiv=eval('document.all.' + id + '.style');
				else if(ns)	adDiv=eval('document.layers["' + id + '"]');
				else if(w3)	adDiv=eval('document.getElementById("' + id + '").style');
				if (ie||w3)
				adDiv.visibility="hidden";
				else
				adDiv.visibility ="hide";
			}