HTML页：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml%22%3E%3Chead>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>imgnews</title>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7">
<link href="style/imgnews.css" rel="stylesheet" type="text/css">
<script src="style/imgnews.js" type="text/javascript" language="javascript"></script>
</head><body>
<div class="inner">
<div class="focus clearfix">
<div class="big_img" >http://www.biao168.com%22%3evancl/挑战极限购物体验全场免运费</a></dt><dd>双珠地双扣短袖polo衫，任选4件199元</dd></dl>
</li>
</ul>
</div><!-- //focus clearfix -->
</div><!-- //inner -->
</body></html>
JS文件；
<!--
var B=BigNews={current:0,next:0,scrollInterval:0,autoScroller:0};
BigNews.turn=function(index){
clearInterval(BigNews.autoScroller);
BigNews.scroll(index);
}
BigNews.scroll=function(index){
if(!$('ul_big_news_item')){
clearInterval(BigNews.autoScroller);
return;
}
var count=0;
var step=227;
var duration=16;
var b=BigNews;
b.next=index;
if(index!=b.current&&count>duration/8){
return;
}
clearInterval(b.scrollInterval);
var items=$('ul_big_news_item').getElementsByTagName('li');
for(var i=0;i<5;i++){
items[i].className='';
}
items[index].className='up';
var span=index-b.current;
var begin_value=$('div_big_news_img').scrollTop;
var chang_in_value=span*step+(b.current*step-begin_value);
b.scrollInterval=setInterval(function(){doit(begin_value,chang_in_value)},10);
function $(s){return document.getElementById(s);}
function doit(b,c){
$('div_big_news_img').scrollTop=cpu(count,b,c,duration);
count++;
if(count==duration){
clearInterval(BigNews.scrollInterval);
scrollInterval=0;
count=0;
$('div_big_news_img').scrollTop=b+c;
BigNews.current=index;
}
}
function cpu(t,b,c,d) {return c*((t=t/d-1)*t*t+1)+b;};
}
BigNews.auto=function(){
clearInterval(BigNews.autoScroller);
BigNews.autoScroller=setInterval(function(){
BigNews.scroll(BigNews.current==4?0:BigNews.current+1);
},5000);
}
if(window.addEventListener){
window.addEventListener('onload', BigNews.auto, false);
}else if(window.attachEvent){
window.attachEvent('onload',BigNews.auto);}
else{
//
};
-->