defaultStep=3
step=defaultStep


function scrollDivDown(id){
document.getElementById(id).scrollLeft+=step;
timerDown=setTimeout("scrollDivDown('"+id+"')",10);
}

function scrollDivUp(id){
document.getElementById(id).scrollLeft-=step;
timerUp=setTimeout("scrollDivUp('"+id+"')",10);
}

function toBottom(id){
document.getElementById(id).scrollLeft=document.getElementById(id).scrollWidth
}

function toTop(id){
document.getElementById(id).scrollLeft=0;
}