ROLL_OVER/ ROLL_OUT flickering

sorry asking simple question, new flash.  trying make menu buttons addchild(mc stage top of btn) on roll_over , removed on roll_out.  @ moment can't figure out way keep objects conflicting.  on roll_over this.addchild(newflower) seems triggering newflower multiple times. here code:

 

 

import fl.transitions.tween;

import fl.transitions.easing.*;

import flash.events.mouseevent;

 

var newrooster:rooster_mc = new rooster_mc();

 

btn_mc.addeventlistener(mouseevent.roll_over, rolloverf);

btn3_mc.addeventlistener(mouseevent.roll_over, rolloverb);

btn3_mc.addeventlistener(mouseevent.roll_out, rolloutb);

 

function rolloverf(event:mouseevent):void{

     var newflower:flowers_mc = new flowers_mc();

     this.addchild(newflower);

   newflower.x = 110;

     newflower.y = 268;

 

}

 

function rolloverb(event:mouseevent):void{

     this.addchild(newrooster);

     newrooster.x = 120;

     newrooster.y = 480;

   var video2tween:tween = new tween(event.target, "alpha", strong.easeout,0,1,1,true);

     var video2w:tween = new tween (event.target, "width", strong.easeout,173,183,1,true);

     var video2h:tween = new tween (event.target, "height", strong.easeout,174,184,1,true);

 

}

 

function rolloutb(event:mouseevent):void{

     this.removechild(newrooster);

     var video2wout:tween = new tween (event.target, "width", strong.easeout,183,173,1,true);

     var video2hout:tween = new tween (event.target, "height", strong.easeout,184,174,1,true);

}

 

 

any appreciated.  again new apologize improper wording in questioning.

 

                                                            -----joe

your code doing describe , should expect do.  want code do?

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