Classes - how to .. return

programming flash
1

Hiya - im trying to work out some OOP fundamentals.
[LEFT]Im stuck with returns - i just dont know quite how to use them - the concept is obvious enough.

So - I create a simple function

function randomNumber()
{
    var rn:Number = Math.random()*1;
   return rn;
}
randomNumber();

whooop I made a random number … it’s returned! - but how do I access it - use it - reference it - know where’s it returned to…>

I know with this simple problem I could get the result through a manner of ways - but im interested in using return … anyone willing to return some help this way …

thanks[/LEFT]