Mine

<?php// $Id: jumptolastpostaftercommentsubmit.module,v 1 2007/03/01 18:43:44 rkn Exp $function jumptolastpostaftercommentsubmit_form_alter($form_id, &$form) {  if ($form_id == 'comment_form') {    $form['#submit']['holycrapthatsalongmodulename_submit'] = array();  }}function holycrapthatsalongmodulename_submit($form_id, $form_values) {  $form_values = _comment_form_submit($form_values);  if ($cid = comment_save($form_values)) {    return URL_YOU_WANT_TO_SEND_TO;  }}