var submenuIO = 0;
var current_submenu = null;

function menusOff() {
	if (current_submenu != null)
		current_submenu.style.display = 'none'; 
	submenuIO = 0;
}

function showSubmenu(menuID) {
	var menu = document.getElementById(menuID);
	if (submenuIO == 1)
		menusOff();

	var submenuID = menuID + '-submenu';
	if (document.getElementById(submenuID) != null) {
		current_submenu = document.getElementById(submenuID);
		current_submenu.style.display = 'block';
	}

	submenuIO = 1;
}

function initNav() {
	showSubmenu('default');
}

setTimeout("initNav();",200);

function ShowHide(id, visibility) {
    obj = document.getElementsByTagName("div");
    obj[id].style.visibility = visibility;
}