protected function l($string, $class = 'AdminTab', $addslashes = FALSE, $htmlentities = TRUE)
 {
     if ($class == "AdminTab") {
         return parent::l($string, $class, $addslashes, $htmlentities);
     }
     return exfeatures::getInstance()->l($string, strtolower(get_class($this)));
 }
 protected function l($string, $class = 'AdminTab', $addslashes = false, $htmlentities = true)
 {
     return parent::l($string, strtolower(get_class($this)), $addslashes, $htmlentities);
 }