greensock scrolling div

Hello, I am looking for a way to scroll my Stage with Greensock

I found that but I can not make it work

http://greensock.com/forums/topic/6056-scrolling-the-page-up-and-down-with-greensock-js/

my code work when I use .animate methode

sym.getComposition().getStage().$('#Stage').animate({ scrollTop: 500 }, 5000 ); // Ok

with

    TweenMax.to(window, 3, {scrollTo:{y:300}}); // not working

or

     TweenMax.to($(window), 3, {scrollTo:{y:300}}); // not working

any solution ?

And with a Yoyo action it would be fantastic !!

thanks