nn = (document.layers)? true : false;
//ie = (document.all)? true : false;

function hideLeer(which) {
	if(!nn)
	{
		if (document.getElementById && document.getElementById(which) && document.getElementById(which).style)
        	document.getElementById(which).style.visibility="hidden";
	}else{
		document.layers[which].visibility = "hide";
	}
		 
}
function showLeer(which) {
	if(!nn)
	{	
  		if (document.getElementById && document.getElementById(which) && document.getElementById(which).style)
        	document.getElementById(which).style.visibility="visible";
	}else{
		document.layers[which].visibility = "show";
	}
}
	
var closemenu;
var whichB='menu1';
var name1B='none';
var name2B='none';

function place(name1,name2) {
	if (document.images) name1.src = name2.src;
}
function menuover(which){
	clearTimeout(closemenu);
	out();
	showLeer(which);
}

function menuout(which){
	whichB=which;
	
	closemenu = setTimeout(out, 2000);
}

function out(){
	hideLeer(whichB);
	place(name1B,name2B);
}

function sbon(){
clearTimeout(closemenu);
}

function sbout(){
closemenu = setTimeout(out, 2000);
}