Simple Flip of two images flashing

This code works in Flash ide and IE8.?In Firefox and Google chrome after flipping once it just starts to flash.

import fl.transitions.Tween;

import fl.transitions.easing.Strong;

import fl.transitions.TweenEvent;

con.sidea.flip.addEventListener(MouseEvent.CLICK,onflip);

con.sideb.flip.addEventListener(MouseEvent.CLICK,onflip);

addEventListener(Event.ENTER_FRAME,loop);

var isStill:Boolean=true;

var arraytween:Array = new Array();

function onflip(e:Event) {

if (isStill) {

arraytween.push(new Tween(con,'rotationY',Strong.easeOut,con.rotationY,con.rotationY+180,1,true));

arraytween[0].addEventListener(TweenEvent.MOTION_FINISH,reset);

isStill=false;

}

}

function reset(e:Event) {

?isStill=true;

arraytween=[];

}

function loop(e:Event) {

if (con.rotationY%26gt;=90 %26amp;%26amp; con.rotationY%26lt;=270) {

con.addChild(con.sideb);

con.scaleX=-1;

?} else {

con.addChild(con.sidea);

con.scaleX=1;

}

?if (con.rotationY%26gt;=360) {

con.rotationY=0;

?}

}

Thanks, Need your help....

Simple Flip of two images flashing

No bites yet.

Really need you help.