Cyborg Game

This is the thread where I will post all my problems with my upcoming action game: _______ (dont have a title). In the game you are cyborg with a huge array of weaponry at your disposal. I have just finished the basic artwork and have got my person to move left and right with the arrow keys. But when I tries to make him jump using the example at http://prospects-web.com/platform.php , It gets buggy. Exttremely buggy. Can someone view the file and help me out?