code: protected int addConfirmPopupMessage (SmartTable contents, int row)
      {
          if (_confirmHTML) {
              contents.setHTML(row, 0, _confirmMessage, 2, "Message");
          } else {
              contents.setText(row, 0, _confirmMessage, 2, "Message");
          }
          return row + 1;
      }
docs: Adds the message area for the confirmation popup to the given row and returns the row to
  insert next.