Something

#
<table id="footer-menu" summary="Navigation elements." border="0" cellpadding="0" cellspacing="0" width="100%">
#
  <tr>
#
    <td align="center" valign="middle">
#
    <?php if (isset($primary_links)) : ?>
#
      <?php print theme('links', $primary_links, array('class' => 'links primary-links')) ?>
#
    <?php endif; ?>
#
    <?php if (isset($secondary_links)) : ?>
#
      <?php print theme('links', $secondary_links, array('class' => 'links secondary-links',)) ?>
#
    <?php endif; ?>
#
    </td>
#
  </tr>
#
</table>