Recursive walk up tree

Hi folks,

Can somebody please let me know of an XPATH expression on how to recursively 
walk up a tree.

I have a tree of directories in an XML
<directories>
  <directory name=blah>
    <directory name="blee">
      ... to arbitrary depth
    </directory>
  </directory>
</directories>

I need to put each element into a <tr> and a <td> for each level.
<table>
<tr><td>blah</td></tr>
<tr><td>spacer</td><td>blee</td></tr>
<tr><td>spacer</td><td>spacer</td><td>...</td></tr>

</table>
TIA,
Dinesh

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