You can read more about xhtml table markup in HTML Dog’s Table Section. I have tested the tables below in Mozilla Firefox 3, IE 6 and 7, Opera 9.x and Safari.

gistfile2.txt

Valid xhtml 1.0 Strict Table Template

<!-- Table markup-->

<table id="...">

	<!-- Table header -->

		<thead>
			<tr>
				<th scope="col" id="...">...</th>
				...
			</tr>
		</thead>

	<!-- Table footer -->

		<tfoot>
	        <tr>
	              <td>...</td>
	        </tr>
		</tfoot>

	<!-- Table body -->

		<tbody>
			<tr>
				<td>...</td>
				...
			</tr>
			...
		</tbody>

</table>