Head light dimmer switch on 1990 Cadillac Seville

Head light dimmer switch no good. Where can I find one?

2 answers
I'm not sure if its located in this switch or not http://partimages.genpt.com/largeimages//103249.jpg But if it is its available at www.napaonline.com
The switch is part of the T/S switch. You may just need a relay.