ActionScript 3.0 :: Add Additional Event Handler On Sample Event?

In AS2 we can add additional event handler on same event as below code does.

on (rollOut, dragOut) {
// Statement 1
}
 
Now , I am workin in AS3 . So, how to add additional event handler on event in  AS3
 
Let's say display Object's instance name is "myBtn"
 
Here I have include only Mouse Out only, Now I want to add additional event handler
 
myBtn.addEventListener(MouseEvent.MOUSE_OUT, myBtnEvent);
myBtnEvent(event:MouseEvent):void
{
// Statement 1
}