var router = Router.create({
    routes: routes,
    location: Router.HistoryLocation,
    scrollBehavior: {
        updateScrollPosition: function updateScrollPosition() {
          var hash = window.location.hash;
          if (hash) {
            var element = document.querySelector(hash);
            if (element) {
              element.scrollIntoView();
            }
          } else {
           window.scrollTo(0, 0);
          }
        }
    }
});