Barracuda: table colspan with iterative model

I'm using a table to iteratively displaying the data.  However, i want
to put a colspan on a column (for items with same category) (see below).
Does anyone know of a way to do this?  Is it possible to modify the DOM
once it's been "rendered" (or processed) (e.g. when getting to the next
category, I would know how man rows to span)?  Or some way to "look
ahead" to know how many rows to span?
 
The data I'm getting back is for a single-loop.  I would be doing the
calculation on-the-go.
 
here's how I want to render the table (hopefully it shows up correctly
for your email client):
 
Title

Bitrate

Requests

Cool Music from Eastern Europe with Gypsy Beats

28k

4

56k

5

100k

6

150k

1

Cool Music from Eastern Europe with Gypsy Beats Total

16

 
thanks in advance!
-thuong