And a final one because writing JS is FUN! http://jsfiddle.net/hazlema/mVK5G/2/
The other one worked but didn't bubble the changes down the line.ex. If you select the same option for each set of boxes, and then change the first one it should trickle down to all the results.
This fixes that problem (and I also used :relay in addEvent, something I've been meaning to use more).
