What I'm trying to achieve is this:
One swf on the right, one swf on the left, in the middle fixed space (400px) for html content, the swf-files fill up the right and left space when the browser scales.

So basically this:

scaleable swf (exactfit) >> | fixed html content in the middle of browser | << scaleable swf (exactfit)

How can I achieve this, using SWFObject to post the swf-files?
I've been trying quite some CSS-things now, but none of the methods seems to cross-browser compatible.