Are there any existing table sorting libraries, or is there a way to configure tablesorter, to sort every two rows? Alternatly, is there a better way to semantially express my
Someone developed this functionality for tablesorter. Check out this page:
http://blog.pengoworks.com/index.cfm/2008/3/28/Finished-jQuery-Tablesorter-mod-for-Collapsible-Table-Rows
All you need to do is give secondary rows a class of "expand-child" (this is configurable).
Does exactly what you need.