defaultStep=5
step=defaultStep

function scrollDivRight(id){
clearTimeout(timerRight)
document.getElementById(id).scrollLeft+=step
timerRight=setTimeout("scrollDivRight('"+id+"')",1)

}

function scrollDivLeft(id){
clearTimeout(timerLeft)
document.getElementById(id).scrollLeft-=step
timerLeft=setTimeout("scrollDivLeft('"+id+"')",1)
}

timerRight=""
timerLeft=""

function stopMe(){
clearTimeout(timerRight)
clearTimeout(timerLeft)
}

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