以下代码jquery实现简单的滚动，原理是克隆第一个li然后放到末尾，接着让它往上滑动然后清除掉，反复循环
<script type="text/javascript">
function slide(ClassName){
var ID = setInterval ("run('"+ClassName+"')",1000);
$('.'+ClassName).mouseover(function(){
clearInterval(ID)
}).mouseout(function(){
ID = setInterval ("run('"+ClassName+"')",1000);
});

}
function run(ClassName){
$('.'+ClassName).find('li').first().clone().appendTo('.'+ClassName);
$('.'+ClassName).find('li').first().slideUp("slow",
function(){
$('.'+ClassName).find('li').first().remove();
}
);

}
$(function(){

slide('side-news-cnt');

});
</script>