Tablesorter Plugin : to disable a coulmn from sorting

Tablesorter Plugin : to disable a coulmn from sorting

Hi,

I have used the jquery tablesorter plugin in my site.

The table consists of 3 5 columns and I want to disable the first column from sorting.

That is when we click on the table headers, the items in the first column should not sorted.

Is there any option to do this?

thanks.