Button edit = row.addCell().addButton("submit_edit_"+id);
edit.setValue(T_submit_edit);
Row checksumRow = summary.addRow();
checksumRow.addCell();
Cell checksumCell = checksumRow.addCell(null, null, 0, 6, null);
checksumCell.addHighlight("bold").addContent(T_checksum);
checksumCell.addContent(" ");
checksumCell.addContent(algorithm + ":" + checksum);
}