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@gf3
Created April 15, 2009 14:25
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Get the width of the scrollbars on a page.
function getScrollbarWidth() {
if (this.scrollbarWidth) {
return this.scrollbarWidth;
}
var inner = document.createElement('p');
inner.style.width = '100%';
inner.style.height = '200px';
var outer = document.createElement('div');
outer.style.position = 'absolute';
outer.style.top = '0px';
outer.style.left = '0px';
outer.style.visibility = 'hidden';
outer.style.width = '200px';
outer.style.height = '150px';
outer.style.overflow = 'hidden';
outer.appendChild(inner);
document.body.appendChild(outer);
var w1 = inner.offsetWidth;
outer.style.overflow = 'scroll';
var w2 = inner.offsetWidth;
if (w1 == w2) {
w2 = outer.clientWidth;
}
document.body.removeChild(outer);
return (w1 - w2);
}
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