Is detecting scrollbar presence with jQuery still difficult?

Question

I know that detecting scrollbar presence is supposed to be one of those elusive things that we should all have to suffer through. What I\'ve read so far is that you can\'t r

Answer 1

Probably not as elegant as you were hoping for but this is an adequate adaption from a script I recently wrote to calculate viewport height.

Logically you'd want to call this function on document ready and window resize.

It also deals with inconsistencies that you'd encounter in Opera ^{(line 2)} and IE7 ^{(line 6)}.

function scrollbar() {
    var viewportHeight = window.innerHeight ? window.innerHeight : $(window).height();

    if (jQuery.browser.msie) {
        if(parseInt(jQuery.browser.version) == 7) {
            viewportHeight -= 3;
        }
    }

    if(viewportHeight <= $('#wrapper').height()) {
        return true;
    } else {
        return false;
    }
}