public function getSearchCatId()
    {
        if ($this->_sSearchCatId === null) {
            $this->_sSearchCatId = false;
            if ($this->_isSearchClass()) {
                $this->_sSearchCatId = rawurldecode(\OxidEsales\Eshop\Core\Registry::getConfig()->getRequestParameter('searchcnid'));
            }
        }

        return $this->_sSearchCatId;
    }