var xTarget:Number;
var yTarget:Number;
var nDist:Number = 0.15;

shuffle_btn.addEventListener(MouseEvent.CLICK, click);

function click(vet:MouseEvent):void {
	xTarget = Math.random()*stage.stageWidth;
	yTarget = Math.random()*stage.stageHeight;
	addEventListener(Event.ENTER_FRAME, xMove);
}
function xMove(evt:Event):void {
	mc.x += (xTarget - mc.x)*nDist;
	mc.y += (yTarget - mc.y)*nDist;
	if (Math.abs(xTarget - mc.x) < 0.5 && Math.abs(xTarget - mc.x) < 0.5) {
		removeEventListener(Event.ENTER_FRAME, xMove);
	}
}