function getScrollerWidth() {
    var scr = null;
    var inn = null;
    var wNoScroll = 0;
    var wScroll = 0;

    scr = document.createElement('div');
    scr.style.position = 'absolute';
    scr.style.top = '-1000px';
    scr.style.left = '-1000px';
    scr.style.width = '100px';
    scr.style.height = '50px';
    scr.style.overflow = 'hidden';

    inn = document.createElement('div');
    inn.style.width = '100%';
    inn.style.height = '200px';

    scr.appendChild(inn);
    document.body.appendChild(scr);

    wNoScroll = inn.offsetWidth;
    scr.style.overflow = 'auto';
    wScroll = inn.offsetWidth;

    document.body.removeChild(document.body.lastChild);

    return (wNoScroll - wScroll);
		
		}