http://www.codefans.net/jscss/code/3166.shtml
<!DOCTYPE HTML>
<html><head>
<title>css+js控制图片展示</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>
*{ padding: 0px; margin: 0px; font: 10px verdana, geneva, arial, helvetica, sans-serif; color: #000; list-style: none;}
#focus{ border: #ccc 1px solid;width: 220px;}
#beni{width: 220px;}
#beni li{float: left; width: 55px; height:26px; text-align:center; background:#09C}
#beni li.first{}
#beni li a{ display: block;line-height: 26px;}
#beni li a:hover{ background: #f9f9f9 }
#description{ width:220px; height:99px; overflow:hidden; clear:both}
#description li{ float:left; display:block;}
</STYLE>
<script>
window.onload=function(){
var ele=document.getElementById("description");
var w=ele.clientWidth;
var n=20,t=20;
var timers=new Array(n);
var c=document.getElementById("beni").getElementsByTagName("li");
for(var i=0;i<c.length;i++){
c[i].index=i;
c[i].onmouseover=doSlide;
}
c=null;
function doSlide(){
var x=ele.scrollLeft;
var d=this.index*w-x;
if(!d) return;
for(var i=0;i<n;i++)(function(){
if(timers[i])
clearTimeout(timers[i]);
var j=i;
timers[i]=setTimeout(function(){
ele.scrollLeft=x+Math.round(d*Math.sin(Math.PI*(j+1)/(2*n)));
},(i+1)*t);
})();
}
}
</script>
</head>
<body>
<div id=focus>
<ul id=beni>
<li class=first><a href="#">oggetti</a></li>
<li><a href="#">architet</a></li>
<li><a href="#">reperti</a></li>
<li><a href="#">stampe</a></li>
</ul>
<div id=description> <img src="http://www.codefans.net/jscss/demoimg/201203/s_pic.jpg" /></div>
</div>
</body>
</html>