Help 89 jimmy sunroof removel

:banghead: I have an 89 jimmy s15 that has a sunroof, i am trying to remove the headliner to reupolster it, the only problem i am having now is removing the sunroof to keep the board intact, can anyone offer some advice, ohh and the sunroof is a split sunroof not a whole one. ( it has a light down the middle and opens on driver side and passenger side seprately... please help me:banghead: