AS3 - JavaScript Style Closures

gistfile1.as

var window:Object = {};

new function():void {
	
	var shared:Number = 100;
	
	/**
	 */
	function Foo():void {
		this.getNumber = function():Number {
			return shared ++;
		}
	}
	
	/**
	 */
	function Bob():void {
	}
	Bob.prototype = new Foo();
	
	window.foo = new Foo();
	window.bob = new Bob();	
}

trace( window.foo.getNumber() ); // 100
trace( window.bob.getNumber() ); // 101