public function get_pages($pages)
 {
     if (is_array($pages)) {
         //filter all pages which are not allowed
         foreach ($pages as $i => $page) {
             if (mvb_Model_AccessControl::checkPostAccess($page) || mvb_Model_AccessControl::checkPageExcluded($page)) {
                 unset($pages[$i]);
             }
         }
     }
     return $pages;
 }