Hi, just started using AS3 and i would like some help.

I have four button on my main movie, which basically will load an external swf when pressed. Right now, i'm able to load the first movie directly using this code

Code:
prBut.addEventListener(MouseEvent.CLICK, onClick);
srBut.addEventListener(MouseEvent.CLICK, onClick);
tm.addEventListener(MouseEvent.CLICK, onClick);
conBut.addEventListener(MouseEvent.CLICK, onClick);


function onClick(e:MouseEvent):void
{
	trace(e.target.name + "has been pressed");
}

var holder:MovieClip;
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
loader.load(new URLRequest("home.swf"));

function onComplete(e:Event):void
{	
	holder = MovieClip(e.target.content);
	holder.x = 2;
	holder.y = 176;
	addChild(holder);
}
Now, how do i use buttons to load the movies?

Can someone help me plz