/**
  * get main menu box for current module
  * @return mixed
  */
 public function &get_main_menu_box()
 {
     $main_boxes =& HW_Module_Settings_page::get_modules_menu_boxes();
     if (isset($main_boxes[$this->option('module_name')])) {
         return $main_boxes[$this->option('module_name')];
     }
 }