<p>prototypsjs framework is used for that.</p>

<ul>
  <li>scroll container to view element inside : scrollTo(myElement, divContainer);</li>
  <li>
    <p>scroll window to view element inside : scrollTo(myElement, null);</p>

    <p>scrollTo(myElement, scrollContainer){
      if(scrollContainer){
          myElement.scrollIntoView();
      }else{
          currentWindowScrollY = document.documentElement.scrollTop;
          targetWindowScrollY = Element.cumulativeOffset(myElement)[1]-window.height()+myElement.getHeight();
          if(targetWindowScrollY&gt;currentWindowScrollY){
              window.scrollTo(window.scrollX, targetWindowScrollY);
          }
      }
  }</p>
  </li>
</ul>