What is the best way to make a zoom-in effect on Flash?

I have a world map and want to create a zoom-in effect. Ideally, it would be able to have a "magnifying glass" looking cursor that when clicked, it would zoom in on that area of the 开发者_开发问答map.

You can do that with four things:

X Y scaleX scaleY

Oh, and mouse event listeners, of course.

or you can play about with flash's inbuilt tween class:

import fl.transitions.Tween;
import fl.transitions.easing.*;