AS3 Question: Accessing a main timeline variable from a class?

First Post! I like what you’ve done with the place.

                     I'm was getting good with as2 but  recently made the mind switch from, I'll learn as3 tomorrow to as3 is  awesome. The problem for me is that I don't understand the scope for  classes. I know I can trace a variable on the main time line when the  var is declared in the class. But how do you access a main time line var  from a class?

Here’s an example - main time line Monkey.fla

var cagedMonkies:int = 10;
var monkeyTransport:MovieClip = new CarTrunk();

Here’s the second part - CarTrunk.as

package {
       import flash.display.MovieClip;
    public class CarTrunk extends MovieClip {
      public function CarTrunk() {
        trace(cagedMonkies);
             }
    }
}

What would I need to change or do to make code like this work?

                                          **Thankful People:**