scroll

$(function() {
	var speed = -1,
			banner = document.getElementById('banner'),
			main1 = document.getElementById('main1'),
			wrap1 = document.getElementById('wrap1'),
			wrap2 = document.getElementById('wrap2'),
			timer,
			interval = 15,
			left;

	function scroll() {
		left = banner.offsetLeft;
		banner.style.left = (left <= -wrap1.offsetWidth) ? 0 : left + speed;
		timer = setTimeout(scroll, interval);
	}

	wrap2.innerHTML = wrap1.innerHTML;
	timer = setTimeout(scroll, interval);
	main1.onmouseover = function() {
		clearTimeout(timer);
	}
	main1.onmouseout = function() {
		timer = setTimeout(scroll, interval);
	}
});