function smoothScroll() {
    var xScrollSpeed = 1;
    var yScrollSpeed = 1.1;
    
    var x1 = x2 = 0;
    var y1 = y2 = 0;
    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }
    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }
    var x = Math.max(x1, x2);
    var y = Math.max(y1, y2);
    window.scrollTo(Math.floor(x/xScrollSpeed), Math.floor(y/yScrollSpeed));
    if (x>0 || y>0) {
        window.setTimeout("smoothScroll()", 10);
    }
}