tablesorter - how to sort by div?

tablesorter - how to sort by div?

Hi Guys,

I need to be able to sort based on what's inside a particular div. The table I'm working on dynamically returns prices in different divs and this seems to be throwing the ability for the tablesorter to work correctly. I have the following returned and need to only sort on the first.
  1. <div class="price1">£50</div>
  2. <div class="price2">£150</div>
  3. <div class="price3">£500</div>
Any ideas?

Cheers,

JPJ