Unable to get copied java game to work
I have copied the bare essentials of the 15 Puzzle game at http://www.javaonthebrain.com/java/puzz15/ to my page at http://www.geocities.com/denmarks/15_puzzle.html
I have finally managed to get all the obvious errors removed and java seems to begin. The only problem is that nothing happens. Can someone look at both pages and tell me what I have done wrong?

