var speed = 1;
var los;

function scrollIt (mov, dir) {

	if (dir == 1 && parseInt (document.getElementById ("divContent").style.top) < 0) {
		document.getElementById ("divContent").style.top = parseInt (document.getElementById ("divContent").style.top) - mov + "px";
	}else if (dir == 2 && parseInt (document.getElementById ("divContent").style.top) > 0-(parseInt(document.getElementById ("divContent").offsetHeight)-parseInt(document.getElementById ("divContainer").style.height))) {
		document.getElementById ("divContent").style.top = parseInt (document.getElementById ("divContent").style.top) - mov + "px";
	}
}
function moveIt (mov, dir) {
	los = setInterval("scrollIt ("+mov+", " + dir + ")", speed);
}
function stopIt () {
	clearInterval(los);
}