Easy fix - javascript error on users and groups module page

I was trying to sort users by UID and got a javascript error. Undefined variable.

I'd guess it applies to all operating systems but here's what I am running - (complete yum updated yesterday) on a Fedora Core 6, Virtualmin Pro, (Virtualmin Framed Theme)- I was using IE 6.0.280 as my browser on a networked windows machine when it occured.

Line: 187
Char: 5
Error: 'valA' is undefined
Code: 0
Url: http://192.168.XXX.XXX:10000/useradmin/

Thanks,
John Ford