if (document.all) {
var ie=true;
}

function menuOn(Id) {
	document.getElementById(Id).style.visibility='visible';
}

function menuOff(Id) {
	document.getElementById(Id).style.visibility='hidden';
}

function menuOn2(Id, subId) {
	document.getElementById(Id).style.visibility='visible';
	document.getElementById(subId).style.visibility='visible';
}

function menuOff2(Id, subId) {
	document.getElementById(Id).style.visibility='hidden';
	document.getElementById(subId).style.visibility='hidden';
}

function menuOn3(Id, subId, sub2Id) {
	document.getElementById(Id).style.visibility='visible';
	document.getElementById(subId).style.visibility='visible';
	document.getElementById(sub2Id).style.visibility='visible';
}

function menuOff3(Id, subId, sub2Id) {
	document.getElementById(Id).style.visibility='hidden';
	document.getElementById(subId).style.visibility='hidden';
	document.getElementById(sub2Id).style.visibility='hidden';
}