// insert custom text into LINK_TEXT
foreach ($rows as $rownum => $rowdata) {
    switch ($rowdata['task_id']) {
    case 'x_person_addr(add)':
        ini_set('include_path', ini_get('include_path') .PATH_SEPARATOR .'../xample');
        $dbobject =& singleton::getInstance('x_person');
        $data = $dbobject->getData($rowdata['context']);
        if (!empty($data)) {
            $data = $data[0];
            $link_text = $rowdata['task_desc'] .' for ' .$data['first_name'] .' ' .$data['last_name'];
            $rowdata['link_text'] = $link_text;
        } // if
     default:
        break;
    } // switch
    $rows[$rownum] = $rowdata;
} // foreach