if (Request::hasVar('galleriffic_nb_preload', 'POST')) {
            if ($helper->getConfig('galleriffic_nb_preload') != $_POST['galleriffic_nb_preload']) {
                $criteria = new \CriteriaCompo();
                $criteria->add($moduleIdCriteria);
                $criteria->add(new \Criteria('conf_name', 'galleriffic_nb_preload'));