/**
  * loads card access data
  */
 protected function _load_cardaccess()
 {
     require_once 'CardAccess.class.php';
     $this->person->data['door_access'] = CardAccess::doorAccess($this->person->id);
     $this->person->data['door_badge_issue_num'] = CardAccess::badgeIssueNumber($this->person->id);
 }