protected function _getJavascriptOptions(Garp_Browsebox $box) {
        $options = $box->getJavascriptOptions();
        $options = $options instanceof Garp_Util_Configuration ?
            $options :
            new Garp_Util_Configuration($options);
        return $options->setDefault('rememberState', false)
            ->setDefault('transition', 'crossFade');
    }