本文介绍用javascript制作图片轮换效果，原理很简单，就是设置延时执行一个切换函数，函数里面是先设置下面的缩略图列表的白框样式，再设置上面大图的src属性，在IE中显示很正常，可是在FF中会有变成先显示上面的大图
<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
body{ font-family:Arial, Verdana, Helvetica, sans-serif, "宋体"; font-size:14px;}
a{ color:#fff;}
img{ border:0;}
#picBox{ width:335px; border:1px solid #000; height:317px; position:relative;}
.pic img{ width:335px; height:251px; filter:BlendTrans(duration=1);}
.txtbg{height:40px; background:#000; position:relative; margin-top:-40px; filter:alpha(opacity=50); opacity:0.5;}
.text{ line-height:40px; text-align:center;position:relative; margin-top:-40px;}
.thumbs{ position:absolute; margin-top:-4px;}
.thumbs a{ padding-top:4px; position:relative; cursor:pointer; float:left; margin-right:-3px; width:86px; height:66px;}
.thumbs img{ border:3px solid #777; width:80px; height:60px;}
.thumbs .cur{ background:url(http://img1.cn.msn.com/1/arrow2.gif) no-repeat center top; z-index:2;}
.thumbs .cur img{ border-color:#fff;}
</style>
</head>
<body>
<div ,2000);
}
window.onload=function(){
for(var i=0;i<thumbs.length;i++){
thumbs[i].onmouseover=function(){
if(timer){clearTimeout(timer)};
setFocus(this);
}
}
setFocus(thumbs[0]);
}
</script>