How to get scrollbar position with Javascript?

Question

I\'m trying to detect the position of the browser\'s scrollbar with JavaScript to decide where in the page the current view is. My guess is that I have to detect where the t

Answer 1

document.getScroll = function() {
    if (window.pageYOffset != undefined) {
        return [pageXOffset, pageYOffset];
    } else {
        var sx, sy, d = document,
            r = d.documentElement,
            b = d.body;
        sx = r.scrollLeft || b.scrollLeft || 0;
        sy = r.scrollTop || b.scrollTop || 0;
        return [sx, sy];
    }
}

returns an array with two integers- [scrollLeft, scrollTop]