walkin_mc.buttonMode = true;
walkin_mc.addEventListener(MouseEvent.MOUSE_OVER, wOver);
walkin_mc.addEventListener(MouseEvent.MOUSE_OUT, wOut);
walkin_tx.mouseEnabled = false;
var deceleration:Number = 0.2;

function wOver(evt:MouseEvent):void {
	addEventListener(Event.ENTER_FRAME, update, false, 0, true);
}
function update(evt:Event):void {
	walkin_tx.x += (stage.mouseX - walkin_tx.x)*deceleration;
	walkin_tx.y += (stage.mouseY - walkin_tx.y)*deceleration;
}
function wOut(evt:MouseEvent):void {
	removeEventListener(Event.ENTER_FRAME, update);
	walkin_tx.x = 400;
	walkin_tx.y = 800;
}