Four in a row

The goal is to get four bricks in a row by placing them from bottom and up.
The brick with a cross marks where the computer made its last draw
Send a mail to Kjell Ericson if you got any comments.
Computer starts
You start

Important note: The computer is a bad looser, so it claims that you have cheated even if you have not. Just ignore that.
i.e. it is a bug that I have no time to fix. I added a check so you couldn't press 'back' in the browser and continue - and that check fails. The program is from 1998, so I don't adjust it anymore.