Using swf as CSS background

Hey All.

I’m tying to build a site that has a flash background, but html/css as the ‘foreground’/content… I have no problem with the flash part of it - it’s done, that’s why I’m posting it here.

In my elated state over this crazy idea (in my head at least!) I simply thought I could add the swf instead of an image in the CSS body tag.

body {
background-image:url(background.swf);
}

(This is just an example)

Right, well… As you probably know, it didn’t work…
Adding the whole <object id-thing> that flash publishes in the html file, didnt help either…

And I’m beginning to wonder, if it’s even possible. IS there any way to load a Flash swf file as your background in a CSS style sheet?

If there were, I guess more people would be doing it??

Thanks guys, I really hope you can help me with this.
Stig