Mouse rollover

does anyone know if i can make a Mouse rollover event USING listeners and events? for example if you want to scale a object when you pass the mouse over it. In my application each object has a NodeHandler which i enabled when i pick it but i cant find the way to generate an event as a rollover.

actually, i can scale the object when i pass the mouse over it, the problem is to identify when i leave the object…

I dont know if i explained myself ok. The code which manages the action related with the Mouse rollover should be in the nodehandler because of the design of my application.

I dont know if there is a way to do that or may be my approach is totally wrong :X