protected function getSoftLimit()
 {
     if (self::$loadedSoftLimit != null) {
         return self::$loadedSoftLimit;
     }
     $l = $this->getFilteredOption("SOFT_QUOTA");
     if (!empty($l)) {
         self::$loadedSoftLimit = round($this->getAuthorized() * intval($l) / 100);
     } else {
         self::$loadedSoftLimit = false;
     }
     return self::$loadedSoftLimit;
 }