you guys are missing what randy said. what 2xist wants to know is how to get the fogs come on without turning either the parking lights or the headlights coming on, which randy explained. randy has done it the easiest way possible, and for $15 you can't beat it.
artifex, if you got a kit like randy's you could do the same thing he does, which is run the foglamps with nothing else on. his kit makes it so that the lamps come on with the engine, not the switch. this is good because usually if you have the fogs on with the headlights the fogs turn off if you flash the brights, but with randy's mod you can have both.
so, to answer the original question, all you have to do is read randy's reply. get the kit and run that wire/relay and voila, you have foglights on without the headlamps OR the parking lights.