/*
 *	functions to show and hide the cascading menu
 */

function showSubMenu(idx) {
	var subMenu = document.getElementById("sub_menu_"+idx);
//	subMenu.style.visibility = 'visible';
//	subMenu.style.display = 'block';

}

function hideSubMenu(idx) {
	var subMenu = document.getElementById("sub_menu_"+idx);
//	subMenu.style.visibility = 'hidden';
//	subMenu.style.display = 'none';

}