var lastMenu = 0;
	var menuTimeOut = 0;

	function showSubMenu(obj)
	{
		hideSubMenu();
		if (!obj) return;
		lastMenu = obj;
		obj.className = 'first-level selected';
		obj.onmouseout = Function('menuTimeOut = setTimeout("hideSubMenu()", 500);');
	}

	function hideSubMenu()
	{
		clearTimeout(menuTimeOut);
		if (lastMenu) lastMenu.className = 'first-level';
	}