front passenger electrical window not working

i juss bought a used passat 1997 saloon car and the front passenger window does not work. I want to open the door panel but afraid of getting things worse. So please anybody whith ideas of how to open the panel and what to do after i open it. thanks in advance.

There are plenty of threads on this subject...

http://www.automotiveforums.com/vbulletin/showthread.php?t=209848