Add footer to HTML page

My index.html is mostly a table, and I would like to have one last row (TR) always at the bottom, doesn't matter the browser, or the screen size.

I tried using this as the last row in the <table>, but it does not work:

<tfoot>
  <td height=30>(c) My Company, 2011</td>
</tfoot>

What do you recommend to me?

<tfoot>
<tr>
  <td height=30>&copy; My Company, 2011</td>
</tr>
</tfoot>

You forgot the tr tags