Hi Don,
I would go for some server-side code to change the filter, when the button is clicked, and put the equate of the browse into the "Ïtems to be resetted" list after the server side code is executed.
The button does NOT need a URL.
To find out how tho change the filter, apply a filter to the browse and check the source code on how things are done. Just put 'DonRidley 'in the filter field and scan the source for it.
Regards
Rene