Ok guys, just for a change I'm asking a question that probally wont make sence
OK, as part of my college course me and a few guys are making an online football management (soccer management

) game. We're using PHP and MySQL.
It's all fairly simple and we it all figured out, apart from one thing, we need to play the games at certain times through the week.
The scrpit that will 'play' the game is quite easy to make it's just how can we execute the script automatically?
It would be easy to load the php script in a browser but that would mean that someone would have to be around at certain times to load the page which can't be relied on.
Ok, that's enough random babble from me, I hope it's not too confusing?