Help with trigging X-tra lights

Hi !

I was wondering if someone knows how to rig a couple of relays so that the lights come on like this:

1. When the parking lights go on the X-tralights will go on.

2. When the Low-Beam goes on the X-tra lights will go off.

3. When the High-Beam goes on the X-tra lights will go on

The car in question is an Ford Probe - 94 Sec. Gen.

The function for the lights today is as follows:

1. The parking lights goes on via a knob on a lever.

2. The Low-Beam goes on via the same lever, Parking lights are still on.

3. The High-Beam goes on by the same lever, X-tra lights goes on.

Sincerely yours:

Magnus 

Sounds straightforward to me...

All I have to do is to run a cable to a switch in the panel so that I can turn the X-tra lights off when it's parked.....

Thanks for the help...  ;-)