[Zope] dtml-in totals

[D. Rick Anderson]

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I need to total variable from a dtml-in and give the result at the bottom. 
I can't seem to figure out what needs to be done to get this result. If I 
have the following:

<dtml-in sql_statement>
<table>
 <tr>
  <td>
   <dtml-var dollar_amount>
  </td>
 </tr>
</table>
</dtml-in>

How do I total all the iterations of dollar_amount? Is there a way in dtml 
to put a variable in that stores a running total?

TIA

Rick



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