protected function _getCurrentStateFromRequest() {
        $here = Zend_Controller_Front::getInstance()->getRequest()->getRequestUri();
        $queryString = parse_url($here, PHP_URL_QUERY);
        parse_str($queryString, $queryComponents);      
        if (!empty($queryComponents[Garp_Browsebox::BROWSEBOX_QUERY_IDENTIFIER][$this->getId()])) {
            $chunk = $queryComponents[Garp_Browsebox::BROWSEBOX_QUERY_IDENTIFIER][$this->getId()];          
            return $chunk;
        }
        return null;
    }