[Zope] creating trees

[geoff nordli]

I posted into the zope-dev list, but I think it was the wrong list for this.

I am using squishdot.

I currently have this code to display all the articles, and comments.

<dtml-tree branches=postingValues>
      <A HREF="<dtml-var tree-item-url>"><dtml-var title></A>
</dtml-tree>

This works well, but I would like to be able to get a listing of the 
subjects as the top branch, and then the articles that are associated
with the subjects as leafs.  I think that would be real cool.  

thanks,

geoff nordli