Fade out external swf

1

Hi,
I am making a site with 5 pages.
On 2 of the pages, I am loading external swf’s. This is working properly.
If I go to a page, it loads the swf, but if I then go to another page, the swf doesn’t go away.
How can I get it to fade out?

Thanks.

case “button1” :
var request:URLRequest = new URLRequest(“myVideo.swf”);
var videoLoader:Loader = new Loader();
videoLoader.load(request);
addChild(videoLoader);
videoLoader.x = 20;
videoLoader.y = 20;

break;