jQuery实现代码如下：
<script type="text/javascript">
$(function(){
$("#newly").hover(function(){
clearInterval(scrtime);
},function(){
scrtime=setInterval(function(){
$ul=$("#newly ul");
liheight=$ul.find("li:first").height();
$ul.animate({marginTop:"-10px"},1000,function(){
$ul.find("li:first").appendTo("#newly ul");
$ul.find("li:first").hide();
$ul.css("margin-top","0px");
$ul.find("li:first").show();
});
},4200);
}).trigger("mouseleave");
});
</script>