> I'd like at some point, after the
> button is clicked and the functions performed, that a certain callback
> function be performed.  Something like a function pointer


you can pass functions as arguments or assign to properties just as you 
would with any other type.
eg.

private function foo(callback :Function = null) :void {
   callback();
}

well, I recommend just reading the docs. First sentence in the Function 
help entry would have told you this :)

hth
ben

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