After an endless search of the web, I decided to turn to the Empeg fellas.

My bathroom currently has a single switch to control a track light as well as the fan, so if the light is on, the fan is on. Not a problem, but the fan isn't the most quiet thing.

So, I took the liberty of buying a double switch, so that I could control them separately. I've had some experience with home wiring so I thought I'd give it a whirl. The only problem I have is that there is a three-conductor wire coming into the switch box, and two-conductor wires going out.

See crude attachment. Maybe I'm going braindead, but I can't figure out for the life of me how to hook up the new switches. Thought I'd turn to the endless brainpower of the forum.

I'm assuming that both the red and black are hot, but if that is the case, why is the switch bypassed by the black in the old setup. Any thoughts?