function toTop(id) {
            document.getElementById(id).scrollTop = 0
        }
        defaultStep = 1
        step = defaultStep
        function scrollDivDown(id) {
            document.getElementById(id).scrollTop += step
            timerDown = setTimeout("scrollDivDown('" + id + "')", 5)
        }
        function scrollDivUp(id) {
            document.getElementById(id).scrollTop -= step
            timerUp = setTimeout("scrollDivUp('" + id + "')", 5)
        }