You dont.
At least not the way you want it to work. There are two options:

• Play with the contents header. Something like 'x-replace-mixed' and then ship out the two html files after eachother (thus no fork). This does not work on all browsers
• Play with some javascript DHTML, to remove the flash when the rest is loaded ok. (no forking again). This will mean that the browser does not recieve a full page and there can be problems rendering it.

T I M T O W T D I