function showMenu(Menu) {
	if (navigator.appName == "Netscape") {
		document.layers[Menu].visibility="visible";
	}
	else {
		document.all[Menu].style.visibility="visible";
	}
}

function hideMenu(Menu) {
	if (navigator.appName == "Netscape") {
		document.layers[Menu].visibility="hidden";
	}
	else {
		document.all[Menu].style.visibility="hidden";
	}
}