Design Standards

Hello,

I am a Graphic Designer (mostly print, video) that is getting into Flash. I was looking at some sites and I notice that a lot of people it seems use the main swf to load other swfs as backgrounds as stuff, just wanted to get the reason for doing this and see if anyone knew of a tutorial/website that explained the process through which most flash websites are done. I know how to do navigation buttons and loadVars and all that, I’m talking more about the formatting aspect of how they are laid out. Any help would be appreciated!

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