Making nested elements from elements with level attri

Hi,

I have section elements that level attributes like the following:

<section level=1>
<paragraph>Test line</paragraph>
</section>
<section level=2>
<paragraph>Test line</paragraph>
</section>
<section level=2>
<paragraph>Test line</paragraph>
</section>
<section level=3>
<paragraph>Test line</paragraph>
</section>
<section level=4>
<paragraph>Test line</paragraph>
</section>
<section level=5>
<paragraph>Test line</paragraph>
</section>
<section level=3>
<paragraph>Test line</paragraph>
</section>


I would like to transfrom that to something like:

<section>
<paragraph>Test Line</paragraph>
<section>
<paragraph>...</paragraph>
</section>
<section>
<paragraph/>
<section>
<paragraph/>
<section>
<paragraph/>
<section>
<paragraph/>
</section>
</section>
<section>
<paragraph/>
</section>

Is there an elegant algorithim to do this, or am i looking at a recursive routine with a named template?

Thanks,


Russ
</section>