[flexcoders] Bring Alert in front of DownloadProgressBar

[ilikeflex]

Hi 

I am using the preloader in my application. I have override the below 
method.

// Define the event listeners for the preloader events.
        override public function set preloader(preloader:Sprite):void 
{
            preloader.addEventListener
(FlexEvent.INIT_COMPLETE,myHandleInitEnd);

}

// Event listeners for the FlexEvent.INIT_COMPLETE event.
        private function myHandleInitEnd(event:Event):void {
                 Alert.show("Yahooooooooooo"); 
        }

I want this Alert should come in front of DownloadProgressBar. If i 
run above code then Alert is hidden behind the DownloadProgressBar.
Secondly if we can hide the DownloadProgressBar that will be awesome.

Any pointers will be highly appeciated. I tried using visible=false 
but it does not work.

Thanks
ilikelfex