Html代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>detail</title>
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<link rel="stylesheet" href="/Style/detail.css">
<script type="text/javascript" src="/Javascript/jquery.js"></script>
<script type="text/javascript" src="/Javascript/detail.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$.focus(".slider");
});
</script>
</head>
<body>
<div class="main">
<div class="slider">
<ul>
<li><a href="javascript:void(0);" type='0'>
<img src="http://img.17u.cn/ly/cn/img/zizhuyou/rimage/500_270/2014/9/11/201409110148547940.jpg" ></a></li>
<li><a href="javascript:void(0);" type='0'>
<img src="http://img.17u.cn/ly/cn/img/zizhuyou/rimage/500_270/2014/10/14/201410140439098138.jpg"></a></li>
<li><a href="javascript:void(0);" type='0'>
<img src="http://img.17u.cn/ly/cn/img/zizhuyou/rimage/500_270/2014/1/21/201401211150391745.jpg"></a></li>
</ul>
</div>
</div>
</body>
</html>
css代码：
*{margin: 0;padding: 0;}
ul{ list-style:none;}
body {
-webkit-tap-highlight-color: transparent;
-webkit-font-smoothing: antialiased;
-webkit-user-select: none;
-moz-user-select: none;
font-size: 14px;
line-height: 1.5;
color: #333;
font-family: arial,sans-serif;
margin: 0 auto;
max- 640px;
}
.main {
background: #f0f0f0;
100%;
}
/* 以下特效CSS */
.slider {100%; margin:0 auto; overflow:hidden; position:relative;}
.slider ul { position:relative; 100%;}
.slider li:first-child {position: static;}
.slider ul li { overflow:hidden; position:absolute; background:#000; top:0px; 100%; }
.slider ul li img {border:0; 100%;display: block;}
.slider ul li div {position:absolute; overflow:hidden;}
.slider .btnBg {position:absolute; 100%; height:20px; left:0; bottom:0; background:#000; display:none;}
.slider .btn {position:absolute; 95%; height:23px; padding:0px 10px 0px 10px; right:0; bottom:6px; text-align:right;}
.slider .btn span {display:inline-block; _display:inline; _zoom:1; 25px; height:24px; line-height:24px; text-align:center; _font-size:0; margin-left:5px; cursor:pointer; background:#fff;}
.slider .btn span.on {background:#fff;}
javascript代码：
$(function() {
jQuery.focus = function(slid) {
var sWidth = $(slid).width(); //获取焦点图的宽度（显示面积）
var len = $(slid).find("ul li").length; //获取焦点图个数
var index = 0;
var picTimer;
//以下代码添加数字按钮和按钮后的半透明条，还有上一页、下一页两个按钮
var btn = "<div class='btnBg'></div><div class='btn'>";
for(var i=0; i < len; i++) {
var ii = i+1;
btn += "<span>"+ii+"</span>";
}
//btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>";
$(slid).append(btn);
$(slid).find("div.btnBg").css("opacity",0.5);
//为小按钮添加鼠标滑入事件，以显示相应的内容
$(slid+" div.btn span").css("opacity",0.4).mouseenter(function() {
index = $(slid+" .btn span").index(this);
showPics(index);
}).eq(0).trigger("mouseenter");
//上一页、下一页按钮透明度处理
$(slid+" .preNext").css("opacity",0.2).hover(function() {
$(this).stop(true,false).animate({"opacity":"0.5"},300);
},function() {
$(this).stop(true,false).animate({"opacity":"0.2"},300);
});
//上一页按钮
/*$(slid+" .pre").click(function() {
index -= 1;
if(index == -1) {index = len - 1;}
showPics(index);
});
//下一页按钮
$(slid+" .next").click(function() {
index += 1;
if(index == len) {index = 0;}
showPics(index);
});*/
//本例为左右滚动，即所有li元素都是在同一排向左浮动，所以这里需要计算出外围ul元素的宽度
//$(slid+" ul").css("width",sWidth * (len));
//$(slid+" ul li").css("width",sWidth);
$(slid+" ul li").each(function(index, el) {
$(this).css("left",index*sWidth);
});
//鼠标滑上焦点图时停止自动播放，滑出时开始自动播放
$(slid).hover(function() {
clearInterval(picTimer);
},function() {
picTimer = setInterval(function() {
showPics(index);
index++;
if(index == len) {index = 0;}
},2000); //此4000代表自动播放的间隔，单位：毫秒
}).trigger("mouseleave");
//显示图片函数，根据接收的index值显示相应的内容
function showPics(index) { //普通切换
var nowLeft = -index*sWidth; //根据index值计算ul元素的left值
$(slid+" ul").stop(true,false).animate({"margin-left":nowLeft},300); //通过animate()调整ul元素滚动到计算出的position
$(slid+" .btn span").removeClass("on").eq(index).addClass("on"); //为当前的按钮切换到选中的效果
$(slid+" .btn span").stop(true,false).animate({"opacity":"0.4"},300).eq(index).stop(true,false).animate({"opacity":"1"},300); //为当前的按钮切换到选中的效果
}
};
});