Have lrg portfolio site. Takes too long to download.

Am thinking main swf should load other external swf's on demand to solve.

Built main and have it loading external swf's. That's working.

Question is how do I get back to main swf via a back button. Reload main? unload loaded swf and main will be there underneath? Not getting this part.

The back button will be in an external swf, so how does it interact with main?

Any advice on building large (file size wise) sites greatly appreciated. Thx!!