If no flash player, show an image instead

Hi,

This may be a very simple question, in which case apologies.: I’ve tried to find the answer without success. It may also be impossible. I’m too much of a newbie even to know!

If you have an swf file embedded in a webpage, is it possible to set it up so that if the viewer doesn’t have flash player they can see an image that sits underneath the swf and don’t get the horrible white square? How would you do this?

Many thanks,

mairoo