Javascript Errors Using Table Sort When The Table Has Zero Rows In Its Body

I recently downloaded the new UI table sorter, and it was working great until i came across a table without any body rows.

There were a number of errors where a row was assumed to exist such as.

cells = table.tBodies[0].rows[0].cells;

Error table.tBodies[0].rows[0] has no properties.

I am using Firefox 2