I need to clear the browsers cache for my site automatically with java or html or php. That's because I will add new levels on my flash game swf , and the people won't see the changes because they will have the old or cached swf on their systems, and I don't want complaints. I read something on google but I didn't understand well. Maybe someone can shed some light on me? Hehe

Or maybe disabling cache for my site at all? Thanks