Tooltip follow mouse

hi, i am trying to make the tooltip follow my mouse, i did the motion but i do not know if it is the correct way.
please see the code and guide me
the problem is when i rollover the movie or button and after the tooltip appears, the tooltip blinks when i move my mouse around the objects

please correct the code

thanks in advance

import fl.transitions.easing.*;
import fl.transitions.Tween;
tip_mc.alpha = 0;
// tooltip appears
home_mc.addEventListener(MouseEvent.ROLL_OVER, tipOver);
function tipOver(e:MouseEvent):void {
        var overTween:Tween = new Tween(tip_mc,"alpha",Strong.easeOut,0,1,0.5,true);
        addEventListener(Event.ENTER_FRAME, moveTip1);
function moveTip1(e:Event):void {
        tip_mc.x = mouseX;
        tip_mc.y = mouseY;
// tooltip disappears
home_mc.addEventListener(MouseEvent.ROLL_OUT, tipOut);
function tipOut(e:MouseEvent):void {
        var overTween:Tween = new Tween(tip_mc,"alpha",Strong.easeOut,1,0,0.5,true);
        addEventListener(Event.ENTER_FRAME, moveTip2);
function moveTip2(e:Event):void {
        tip_mc.x = mouseX;
        tip_mc.y = mouseY;