pause tween object at a certain x coordinate

How do I pause a tween object at a certain x coordinate for 15 sec and head back to the original x coordinate and pause that for 3 mins and then loop.

I was messing around with tween.yoyo();

var myTween = new Tween(myMovieClip_mc,"x",Strong.easeInOut, 500,0,1,true);

myTween.addEventListener(TweenEvent.MOTION_FINISH, onFinish);
function onFinish(e:TweenEvent):void
{
    myTween.yoyo();
}

Thanks

timmylogue said
I was messing around with tween.yoyo(); Thanks

If you are not selling your work then using yuanhao_vivag tween recommendation is good way doing things ,other than that’s you can use freely Tweener or EazeTween(I still use ET) on any project free

Thanks guys!