function showlayer(l){
	if (document.layers) eval('document.layers.'+l+'.visibility="show"');//"hidden";
	else
		if (document.getElementById) document.getElementById(l).style.visibility='visible'; //"hidden";	
		else eval('window.document.all["'+l+'"].style.visibility="visible"'); //"hidden";	
//	if (document.layers) eval('document.layers.'+l+'.visibility="show"');//"hidden";
//	else eval('window.document.all["'+l+'"].style.visibility="visible"'); //"hidden";
}

function hidelayer(l){
	if (document.layers) eval('document.layers.'+l+'.visibility="hidden"');
	else
		if (document.getElementById) document.getElementById(l).style.visibility='hidden'; //"hidden";	
		else eval('window.document.all["'+l+'"].style.visibility="hidden"'); //"hidden";	
//	if (document.layers) eval('document.layers.'+l+'.visibility="hidden"');
//	else eval('window.document.all["'+l+'"].style.visibility="hidden"');	
}