defaultStep = 25
step = defaultStep

function scrollDivDown(id) {
    clearTimeout(timerDown)
    document.getElementById(id).scrollTop += step
    timerDown = setTimeout("scrollDivDown('" + id + "')", 30)

}

function scrollDivUp(id) {
    clearTimeout(timerUp)
    document.getElementById(id).scrollTop -= step
    timerUp = setTimeout("scrollDivUp('" + id + "')", 30)
}

timerDown = ""
timerUp = ""

function stopMe() {
    clearTimeout(timerDown)
    clearTimeout(timerUp)
}

//document.onmousemove = function() { stopMe() }