//add admin panel prefiter
add_event_handler('loc_begin_admin', 'PP_admin_prefilter', 80 );
function PP_admin_prefilter()
{
 global $template, $prefixeTable, $conf, $page ;
 $template->set_prefilter('user_list', 'PP_admin_prefilter_tpl');
}

function PP_admin_prefilter_tpl($content, &$smarty)
{
 load_language('plugin.lang', PP_PATH);

          $query = '
SELECT DISTINCT id, PP_lock
  FROM '.USERS_TABLE.'
  WHERE id IN ('.$userid.')
;';
          $result = pwg_query($query);

          while ($row = pwg_db_fetch_assoc($result))
          {
            if ($row['PP_lock'] == 'false')
            {
              $LockedUser = '<img src="'.PP_PATH.'admin/template/icons/nolock.png" title="'.l10n('PP_User Not Locked').'" alt="'.l10n('PP_User Not Locked').'"/><br/><br/>';
            }
            else if ($row['PP_lock'] == 'true')
            {
              $LockedUser = '<img src="'.PP_PATH.'admin/template/icons/lock.png" title="'.l10n('PP_User Locked').'" alt="'.l10n('PP_User Locked').'"/><div style="display: none">'.l10n('PP_User Locked').'</div>';
            }
            else $LockedUser = '<img src="'.PP_PATH.'admin/template/icons/nolock.png" title="'.l10n('PP_User Not Locked').'" alt="'.l10n('PP_User Not Locked').'"/><div style="display: none">'.l10n('PP_User Not Locked').'</div>';
          }

 $search = '<div class="userPropertiesSetTitle">{\'Properties\'|translate}</div>';
 return str_replace($search, $search."\n".$LockedUser."\n", $content);
}