How to remove a function or event stop it from stage.addEventListener in as3 - actionscript-3

Question

I´m trying to make object follow the mouse in as3.
My wish is when I roll over a movieclip(btn1) I want the function that make object follow the mouse(my_object) stop until I roll out of it.
HERE IS THE SCRIPT:
btn1.addEventListener(MouseEvent.ROLL_OVER, JD);
function JD(event:MouseEvent):void{
stage.removeEventListener(Event.ENTER_FRAME, follow_me);
}
btn1.addEventListener(MouseEvent.ROLL_OUT, kk);
function kk(event:MouseEvent):void{
play();
}
stage.addEventListener(Event.ENTER_FRAME,follow_me)
function follow_me(event:Event):void {
var dx:int = bracketL.x - mouseX;
var dy:int = bracketL.y - mouseY;
my_object.x -= dx / 9+5;
my_object.y -= dy /9;
}
Even I roll over the btn1, the my_object does not stop, it still follow the mouse !!
WHAT SHOULD I DO ?

Answer 1

Using a different approach for smoother animation, you could create a enter frame handler that checks for a paused state variable.
Each frame, your object is animated following the mouse cursor; however, if the mouse rolls over your button the object is paused from tracking the mouse.
Example SWF
CS6 FLA source code
CS5 FLA source code
Code:
import flash.events.Event;
import flash.events.MouseEvent;
var paused:Boolean = false;
addEventListener(Event.ENTER_FRAME, frameHandler);
button.addEventListener(MouseEvent.ROLL_OVER, buttonOverHandler);
button.addEventListener(MouseEvent.ROLL_OUT, buttonOutHandler);
function buttonOverHandler(event:MouseEvent):void
{
paused = true;
}
function buttonOutHandler(event:MouseEvent):void
{
paused = false;
}
function frameHandler(event:Event):void
{
if (!paused)
{
object.x -= (object.x - mouseX) * 0.1;
object.y -= (object.y - mouseY) * 0.1;
}
}