function hideExcept(theid) {
	var menuObj = document.getElementById('menu');
	var submenuObj = menuObj.getElementsByTagName("ul");
	for (var i = 1; i < submenuObj.length; i++) {
		if (i != theid) {
			submenuObj[i].style.display = "none";
		} else {
			submenuObj[i].style.display = "block";
		}
	}
}