'97 4-way flasher button problems, always on..

Anybody have this problem.

While replacing my cluster a few months back, I broke the button off the 4-way flasher housing on the column. Everything still worked OK until today, when my daughter manhandled the switch, now the lights stay on constantly.
(Duct tape - the man's essential too- wrapped around the button and crammed into the opening temporarily fixed it-but it won't last long. I see a dead battery in my futur)

I'm wondering if replacing the button will cure the problem, or if I have to buy the whole switch/unit (looks pricey)?????

Replacing just the button should fix it:
http://www.automotiveforums.com/vbulletin/showthread.php?t=595263

Replacing just the button should fix it:
http://www.automotiveforums.com/vbulletin/showthread.php?t=595263
Thanks for the link, I know I saw this previously, but didn't do the search.
(Actually, I came back to search and saw your reply- no parts available at aftermarket stores)

With the p/n in the link, I found a Dealer open today (Saturday, I'm on my way to pick it up. I'll post back with the results)

Thanks again, my battery will be pleased.
Mike

Got the part from a Dealer, GM #1517447 - $19.96 + tax (as listed in the above link).

Took all of 5 minutes to remove the old and insert the new.
Back to Normal Operating Procedure again.

Thanks again for the link, blazee