do-command with function shell

Hanh H. Nguyen (starnet!apple!fe.nosc.mil!nguyen)
Mon, 12 Dec 94 10:17:57 PST

Hi,
When a button is selected, I place its short name into a global variable. How can I tell which button by using this global variable at some other portions of my program. I tried to use string comparision and it dit not work.

Thanks,
Hanh