Volvo Repair: Replacement of drive belt, crank shaft, volvo s80

Question
I have a 2000 Volvo S80 and i am attempting to replacing to replace the driving belt.  I don't dnow know how to remove the belt from the crank shaft pulley.  Do i need to remove the pulley in order to remove the belt?  Please give me instuctions on how to remove the belt.  Also, could you provide me instructions on how to reset the service lights on the dashboard?  
Thanks,
Behrooz

Answer
you need to remove the 4 13mm bolts hoding the outer part of the pulley.



turn the ignition key to position 1 then press and hold the tripometer reset button then turn the key to position 2.hold the button til the service light flashes 2 times then release the button and then turn the key to off position.

            Rege