Open the door and at the base of the hinges you will see a disc with a fine slot in it; using a flat bladed screwdriver turn these discs about 90 degrees. then when you lever down gently on the door you will be able to withdraw the hinges complete.
The outer glasss is removed by unscrewing the two screws at the base of the door. Place on a flat surface beforehand. Slide the glass out of the handle assembly.
As for fixing the glass inside I think if is retained by silicone compound. I'm about to find out myself by trial and error.
Martin Silk, October 2008