daveVk - 2:10 am on May 7, 2012 (gmt 0)

$.each(invData, function(key, val) { content+="<tr><td id='ino' >"+val.invno+"</td><td>"+val.vendor+"</td><td>"+val.date+"</td></tr>";

This is a misuse of id, you should not have multiple elements with same id. Change to class='ino'. Note that working case uses class ('.id') to install click handler.

Consider changing class='id' to something less confusing and more descriptive.