function toggleMenu(id) {
	with (document.getElementById('submenu-'+id).style) {
		if (display == 'none') {
			display = '';
			document.getElementById('menu-'+id).style.listStyleImage = "url('/images/ARR_u.png')";
		}
		else {
			display = 'none';
			document.getElementById('menu-'+id).style.listStyleImage = "url('/images/ARR_r.png')";
		}
	}
}