title: jQuery Tablesorter plugin doesn't work with rowspan in table body
body: <p>Does this plugin simply not work with columns which have rowspan?</p>
  
  <p>Here is an example: <a href="http://www.dnsdebug.com/sortable-rowspan.html" rel="nofollow">http://www.dnsdebug.com/sortable-rowspan.html</a></p>
  
  <p>I presume I'm going to have to delve into the plugin to make it work?</p>