public function facebookComments(array $params = array()) {
        $this->_needsFacebookInit = true;
        $params = new Garp_Util_Configuration($params);
        $params->setDefault(
            'href',
            array_key_exists('href', $params) && $params['href'] ?
                $params['href'] :
                $this->view->fullUrl($this->view->url())
        )
            ->setDefault('width', 400) /* Minimum recommended width: 400 */
            ->setDefault('num_posts', 10)
            ->setDefault('colorscheme', 'light');

        $html = '<fb:comments ' . $this->_renderHtmlAttribs($params) . '></fb:comments>';
        return $html;
    }