var activeMenu = "";
var activeTimeout = 0;
function menuActivate(theMenuId) {
	cancelDeactivate();
	if (activeMenu != "") {
		document.getElementById(activeMenu + "_sub").style.display = "none";
	}
	document.getElementById("orig_sub").style.display = "none";
	document.getElementById(theMenuId + "_sub").style.display = "block";
	activeMenu = theMenuId;
}

function menuDeactivate() {
	activeTimeout = setTimeout("closeSubMenu()", 500);
}

function closeSubMenu() {
	if (activeMenu != "") {
		document.getElementById(activeMenu + "_sub").style.display = "none";
	}
	document.getElementById("orig_sub").style.display = "block";
	activeMenu = "";
}

function cancelDeactivate() {
	clearTimeout(activeTimeout);
}