TO = "";
who = "";

function show_layer(x){
	//if(TO != "") clearTimeout(TO);
	if (who != x) {
		who = x;
		
		if (document.layers)
			document.layers[x].visibility="show";
		else if (document.all)
			document.all[x].style.visibility="visible";
		else if (document.getElementById)
				document.getElementById(x).style.visibility="visible";	
	}
}

function hide_layer(x){
	if(TO != "") clearTimeout(TO);
	
	if (document.layers)
		document.layers[x].visibility="hide";
	else if (document.all)
		document.all[x].style.visibility="hidden";
	else if (document.getElementById)
		document.getElementById(x).style.visibility="hidden";
	
	who = "";
}

function hide(){
	if(who != "") hide_layer(who);
}