SMF konu içinde arama yapma

     </tr>';
    if (!empty($settings['display_who_viewing']))
    {
        echo '
        <tr>
                <td colspan="3" class="smalltext">';

<td>
                    <form action="', $scripturl, '?action=search2;topic=', $context['current_topic'], '" method="post" style="margin: 0;">
                        <input type="text" name="search" value="" style="width: 200px;" /> 
                        <input type="submit" name="submit" value="Konu içi arama" style="width: 20ex;" />
                    </form>
                </td>