var speed = 75; // the smaller the faster
var vertical = -2; // positive values == from top to bottom; negative values == from bottom to top
var size_y = 182;
var y = size_y;
var scroller = null;

function scroll() {
	if ((-y) > ((document.getElementById('ScrollerText').offsetHeight)))
		y = size_y;
	document.getElementById("ScrollerText").style.top = (y+=vertical);
	document.getElementById("ScrollerText").style.display = "block";
}

function initScroller() {
	scroller = setInterval("scroll()", speed);
}

function stopScroller() {
	if (scroller != null) {
		clearInterval(scroller);
		scroller = null;
	}		
}

function startScroller() {
	initScroller();
}