ob_start();
include 'menu.inc.html';
ob_start();
-if ($User and $User->login) {
+if ($User and property_exists($User, 'login') and $User->login) {
print '<div class="login"><p>';
printf('<span>Ingelogd: <b><a href="%s">%s</a></b></span>', '/login', $User->login);
if ($User->admin("edit $Page$Args")) {