var oActive = null;


function Update(oObject) {
	if (oActive == oObject) {
		document.getElementById(oObject.id + "Menue").style.display = "none";
		oActive = null;
	}
	else {
		if (oActive != null) {
			document.getElementById(oActive.id + "Menue").style.display = "none";
		}
		document.getElementById(oObject.id + "Menue").style.display = "block";
		oActive = oObject;
	}
	return (false);
}