Loading external swf movie problem!

Hi guys,

I have a main movie with 4 menu buttons to load external movies. I managed to load an external movie but the problem is that the menu movie is showing underneath and I would like it to be invisible or not showing while the loaded movie plays.
Is there something I should be doing?

any help would be appreciated. Here’s the code from the main menu,fla

Bruno

stop();

var myLoader:Loader = new Loader()
myClip.addChild(myLoader)

prevButton.addEventListener(MouseEvent.CLICK, prevButtonClick);

function prevButtonClick (e:MouseEvent):void
{
myLoader.load(new URLRequest(“prevalence.swf”))

}