Car locks

[chil]

The door locks on my Ford Focus 'T' reg have stopped working when I press the key fob. I have had the battery changed in the fob and that worked better for a short while but not at all now . Also the locks have taken to working as I drive along the road and the other day I managed to get locked out of the car when I had left the engine running whilst I paid for a car park ticket. Does any one know where the control is on the car so that I can have a look at it . Thanks Chil

[__LEE__]

The c/d/l/ control unit is behind the dash and above the offside front kick panel.