public function facebookFacepile(array $params = array(), $useFacebookPageAsUrl = false) {
        $this->_needsFacebookInit = true;
        $params = new Garp_Util_Configuration($params);
        $params->setDefault(
            'href', array_key_exists('href', $params) && $params['href'] ?
                $params['href'] :
                $this->_getCurrentUrl()
        )
            ->setDefault('max_rows', 1)
            ->setDefault('width', 450)
            ->setDefault('colorscheme', 'light');

        if ($useFacebookPageAsUrl) {
            $this->_setFacebookPageUrlAsHref($params);
        }

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