How to get and set the current web page scroll position?

Question

How can I get and set the current web page scroll position?

I have a long form which needs to be refreshed based on user actions/input. When this happens, the page

Answer 1

I went with the HTML5 local storage solution... All my links call a function which sets this before changing window.location:

localStorage.topper = document.body.scrollTop;

and each page has this in the body's onLoad:

  if(localStorage.topper > 0){ 
    window.scrollTo(0,localStorage.topper);
  }