scrollStep = 1;

timerUp = "";
timerDown = "";

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

function scrollDivDown(id)
{
	clearTimeout(timerDown);
	document.getElementById(id).scrollTop += scrollStep;
	timerDown=setTimeout("scrollDivDown('" + id + "')", 20);
}

function scrollDivUp(id)
{
	clearTimeout(timerUp);
	document.getElementById(id).scrollTop -= scrollStep;
	timerUp = setTimeout("scrollDivUp('" + id + "')", 20);
}

function toBottom(id)
{
	document.getElementById(id).scrollTop = document.getElementById(id).scrollHeight;
}

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