function showlayer()
	{
	args = showlayer.arguments;
	for (i=0; i<(args.length); i+=1)
		{
		if (ns4) {eval ('document.layers["' + args[i] + '"].visibility = "show"');}
		if (ie4) {eval ('document.all["' + args[i] + '"].style.visibility = "visible"');}
		if (ns6) {eval("document.getElementById('" + args[i] + "').style.visibility = 'visible'");}
		}
	}

function hidelayer()
	{
	args = hidelayer.arguments;
	for (i=0; i<(args.length); i+=1)
		{
		if (ns4) {eval ('document.layers["' + args[i] + '"].visibility = "hide"');}
		if (ie4) {eval ('document.all["' + args[i] + '"].style.visibility = "hidden"');}
		if (ns6) {eval ("document.getElementById('" + args[i] + "').style.visibility = 'hidden'");}
		}
	}