if (isset($coldefs['unique'])  &&  $coldefs['unique_cols'] == 1) {
            $checked_str = $coldefs['uq_del'] == true ? ' checked' : '';
            $drop_element .= "                <td>\n"
                            .'                  <label><input type="checkbox" name="cd_def_uq_del_'.$idx.'"'.$checked_str.'> <b>'.$tb_strings['DropUq']."</b>\n</label>"
                            ."                </td>\n";