Rest progress bar with each load of image

1

I have a function that loads a room and when I load the room I have progress bar that displays with the percentage downloaded. The percentage text seems to be resetting with each load of an image but not the progress bar. How do I reset my progress bar?


// add room image to the viewport
function addRoom(event:MouseEvent):void {
    //trace(rmPictures[event.currentTarget]);
    var rmloader:Loader = new Loader();
    rmloader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loop, false, 0, true);
    rmloader.contentLoaderInfo.addEventListener(Event.COMPLETE, done, false, 0, true);
    rmloader.load(new URLRequest(rmPictures[event.currentTarget]));
    rmloader.x = 0;
    rmloader.y = 0;

    //remove all the contents BEFORE adding a new one.
    while (roomContainer.numChildren) {
        roomContainer.removeChildAt(0);
    }
    roomContainer.addChild(rmloader);
    colorText.alpha = 0;

}

function loop(event:ProgressEvent):void {
    //create progress bar
    var loadBar:MovieClip = new MovieClip();
    var barColor:Number = Number(0xCCCCCC);
    loadBar.graphics.lineStyle(1, 0xCCCCCC);
    loadBar.graphics.beginFill(barColor);
    loadBar.graphics.drawRect(0,0,100,10);
    loadBar.graphics.endFill();
    loadBar.width=1;
    barContainer.addChild(loadBar);
    var perc:Number = event.bytesLoaded / event.bytesTotal;
    loadBar.scaleX=perc;
    percent.text = Math.ceil(perc*100).toString() + "%";    
}

function done(event:Event):void {    
    //removeChild(barContainer);
    myContainer.x =1000;
    gotoAndStop("scene");
    //tween from 30% to 100% over 1 seconds
    defaultLoaderTween = new Tween(roomContainer, "alpha", None.easeOut,.3,1,1,true);
}


chooseColors.addEventListener(MouseEvent.CLICK, goBack, false, 0, true);
chooseColors.buttonMode = true;
function goBack(event:MouseEvent):void {
    myContainer.x=425;
    removeChild(viewport);
    removeChild(roomContainer);    
    //go to this frame to avoid reloading all the xml stuff
    gotoAndStop("nue");
}