jQuery scrollTop equivalent in Prototype?

Question

I have this piece of jQuery code:

var scrollTop = jQuery(window).scrollTop(); 

How do I have to rewrite it for Prototype? I tried $$(window).scrollTop and $(window).scrollTop, doesnt work.

Thanks!

Answer 1

Have a look here:

http://api.prototypejs.org/dom/document/viewport/

document.viewport.getScrollOffsets()['top'];