var $j = $.noConflict();
$j(function(){
	var $this = $j("#up_down");
	var time1,time2;
	$this.hover(function(){
		clearInterval(time2);
		time1 = setInterval(function(){
			scrollNews($this);
			},4500);
		},function(){
		clearInterval(time1);
		time2 = setInterval(function(){
			scrollNews($this);
			},3000)
		}).trigger("mouseleave");
	});
function scrollNews(obj){
	var $ul = obj.children("ul");
	var lineHeight = $ul.find("li:first").height();
	$ul.animate({"marginTop":-lineHeight+"px"},600,function(){
		$ul.css({"marginTop":0}).find("li:first").appendTo(this);
		})
}