function submenu( ele ) {
	var ul = document.getElementById('personal');
	var sb = ul.getElementsByTagName('li');
	for ( var j = 0; j < sb.length; j++ ) {
		if ( sb[j] === ele ) {
			if ( sb[j+1].getAttribute('type') == 'submenu' ) {
				sb[j+1].style.display = '';
				var ok = sb[j+1];
			}
		} else {
			if ( sb[j].getAttribute('type') == 'submenu' ) {
				if ( ! ok || ok !== sb[j] ) {
					sb[j].style.display = 'none';
				}
			}
		}
	}
}