function LayerDisplay(n) {
	document.all['menuoff'+n].style.visibility="visible";
	document.all['menulayer'+n].style.visibility="visible";
	document.all['menuoff'+n].onmouseover=Layer_Hide;
}
function Layer_Hide () {
	for (i=1;i<3;i++) {
	document.all['menulayer'+i].style.visibility="hidden";
	document.all['menuoff'+i].style.visibility="hidden";
	}
}
document.onclick=Layer_Hide;