function html_output($p)
    {
        $attach_script = false;

        foreach ($this->vcard_parts as $part) {
            $vcards = rcube_vcard::import($this->message->get_part_content($part, null, true));

            // successfully parsed vcards?
            if (empty($vcards)) {
                continue;
            }

            // remove part's body
            if (in_array($part, $this->vcard_bodies)) {
                $p['content'] = '';
            }

            foreach ($vcards as $idx => $vcard) {
                // skip invalid vCards
                if (empty($vcard->email) || empty($vcard->email[0])) {
                    continue;
                }

                $display = $vcard->displayname . ' <'.$vcard->email[0].'>';

                // add box below message body
                $p['content'] .= html::p(array('class' => 'vcardattachment'),
                    html::a(array(
                        'href'    => "#",
                        'onclick' => "return plugin_vcard_save_contact('" . rcube::JQ($part.':'.$idx) . "')",
                        'title'   => $this->gettext('addvcardmsg'),
                        ),
                        html::span(null, rcube::Q($display)))
                );
            }

            $attach_script = true;
        }

        if ($attach_script) {
            $this->include_script('vcardattach.js');
            $this->include_stylesheet($this->local_skin_path() . '/style.css');
        }

        return $p;
    }