Two Buttons in door pocket of A4

[CedA4]

I've just bought a A4 18T Quattro and have found two push buttons in the drivers side door pocket. They look like some sort of sensor button with a picture of the car at tilt on one and the other with some sensor waves on it. The reason for asking you is that the chap i bought this from is on holiday and i wont get the hand book untill he returns.
Any ideas
Thank you

[CedA4]

Cheer's mate sounds about right to me !!