var UpdateInterval = 40;
	var PixelPerInterval = 15;
	var scorllerInterval;

	function start_scroll_right() {
		scorllerInterval = setInterval(scroll_left, UpdateInterval);
	}

	function scroll_right() {
		document.getElementById('scrollerLogo').scrollLeft -= PixelPerInterval;
	}

	function start_scroll_left() {
		scorllerInterval = setInterval(scroll_right, UpdateInterval);
	}

	function scroll_left() {
		document.getElementById('scrollerLogo').scrollLeft += PixelPerInterval;
	}

	function stop_scrolling() {
		clearInterval(scorllerInterval);
	}