/**
  * @param $parent_gui
  */
 function __construct($parent_gui)
 {
     global $tpl, $ilCtrl, $ilTabs, $ilToolbar, $lng, $ilAccess;
     $this->tpl = $tpl;
     $this->ctrl = $ilCtrl;
     $this->parent_gui = $parent_gui;
     $this->parent_object = $parent_gui->object;
     $this->tabs_gui = $this->parent_gui->tabs_gui;
     $this->toolbar = $ilToolbar;
     $this->lng = $lng;
     $this->ilAccess = $ilAccess;
     $this->lng->loadLanguageModule('user');
     if (!$this->ilAccess->checkaccess("write", "", $this->parent_gui->object->getRefId())) {
         ilUtil::sendFailure($this->lng->txt("permission_denied"), true);
     }
 }