js实现点击左右滚动jquery焦点图特效
<!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=gb2312" />
<style type="text/css">
body {font-size:12px; color:#222; font-family:Verdana,Arial,Helvetica,sans-serif; background:#f0f0f0;}
ul,li {list-style:none; margin:0px; padding:0px;}
img {border:0;}
/* 仿QQ商城点击左右滚动jquery焦点图特效插件 */
.focus {width:800px; height:280px; overflow:hidden; position:relative;}
.focus ul {height:380px; position:absolute;}
.focus ul li {float:left; width:800px; height:280px; overflow:hidden; position:relative; background:#000;}
.focus ul li div {position:absolute; overflow:hidden;}
.focus .btnBg {position:absolute; width:800px; height:20px; left:0; bottom:0; background:#000; display:none;}
.focus .btn {position:absolute; width:780px; height:23px; padding:0px 10px 0px 10px; right:0; bottom:6px; text-align:right;}
.focus .btn span {display:inline-block; _display:inline; _zoom:1; width:25px; height:24px; line-height:24px; text-align:center; _font-size:0; margin-left:5px; cursor:pointer; background:#fff;}
.focus .btn span.on {background:#fff;}
.focus .preNext {width:45px; height:100px; position:absolute; top:90px; background:url(img/sprite.png) no-repeat 0 0; cursor:pointer;}
.focus .pre {left:0;}
.focus .next {right:0; background-position:right top;}
</style>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/sl.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$.focus("#focus001");
$.focus("#focus002");
});
</script>
</head>
<body>
<h1></h1>
<div class="focus" id="focus001">
<ul>
<li><a href="http://www.51xuediannao.com/" target="_blank"><img src="img/03.jpg" alt="jquery特效" /></a></li>
<li><a href="http://www.51xuediannao.com/" target="_blank"><img src="img/02.jpg"/></a></li>
<li><a href="http://www.51xuediannao.com/" target="_blank"><img src="img/03.jpg" alt="仿QQ商城点击左右滚动jquery焦点图特效" /></a></li>
</ul>
</div>
<p>修改的几个地方：1、隐藏了半透明背景条，2、把那个小常条滑块读出了1234这些数字。 你不喜欢这样你可以修改样式和自己改动下jquery代码。</p>
<p>调用方法：很简单，$.focus("#focus001"); 一些参数设置，可以修改js中的设置，源作者已经注释的很清楚了。</p>
</body>
</html>
JS
$(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、
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