Scroll Down the page event

Question

How can I catch the event of scroll down the page? I mean I want to have function call if the user scroll down to the end of the page?

Using Prototype JS or pure Javascript.

Answer 1

You would need to bind a scroll event to the window and then check the scroll position.

$(window).observe('scroll', function(event) {
    var scrollOffsets = document.viewport.getScrollOffsets();
    var scrollTop = scrollOffsets.top;
});