function activateMenu(submenu, depth) {
	closeSubMenus(depth);
	$(submenu) ? $(submenu).show() : '';
}

function beActive() {
	closeSubMenus();
	$('current_submenu') ? $('current_submenu').show() : '';
}

function closeSubMenus() {
	var openmenus = $$('div#menu ul li ul li ul');
	if(openmenus != 0){
		openmenus.each(function(e){
			e.hide();
		});
	}
}
function closeSubExceptCurrent(depth) {	
	var openmenus = $$('.submenu_' + depth);
		openmenus.each(function(e){
			e.id != 'current_submenu' ? e.hide() : e.show();
		});
}