<table>
<thead>
<tr><th colspan="2" scope="colgroup"><span id="header">header1 header2 </span></th></tr>
</thead>
<tfoot>
<tr><td colspan="2"><span id="footer">footer1 footer2 </span></td></tr>
</tfoot>
<tbody>
<tr>
<td>body1</td>
<td>body2</td>
</tr>
</tbody>
</table>
<table>
<tfoot>
<tr><td colspan="2"><span id="footer">footer1 footer2 </span></td></tr>
</tfoot>
<tbody>
<tr>
<td>body2</td>
</tr>
</tbody>
</table>
