public function setCTATarget(CNabuSiteTarget $nb_site_target = null)
    {
        if ($nb_site_target instanceof CNabuSiteTarget) {
            $this->setTargetUseURI(CNabuSiteTargetLink::USE_URI_TRANSLATED);
            $this->transferValue($nb_site_target, 'nb_site_target_id', 'nb_site_target_cta_target_id');
        } else {
            $this->setTargetUseURI(CNabuSiteTargetLink::USE_URI_NONE);
            $this->setTargetId(null);
        }
        $this->nb_site_target_destination = $nb_site_target;

        return $this;
    }