用jQuery实现一些导航条切换,显示隐藏的实例代码

代码如下：


代码如下:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>导航条在项目中的应用</title>
    <script language="javascript" type="text/javascript" src="Jscript/jquery-1.4.2.min.js"></script>
   <script type="text/javascript">
       $(function(){
            $(".tit").find("span").click(function(){
                $(this).toggleClass("closeBtn2").parent().next().slideToggle();  //实现内容隐藏显示，及图标的切换
                 }) ;
           $(".clsBot").click(function(){
               $(this).parent().find("li:gt(4)").toggle();      //实现内容索引值大于4的隐藏或者显示

})
       })
   </script>
    <style type="text/css">
        *{ margin: 0;padding: 0;}
        ul li{ list-style: none;}
        .box{ width: 400px; margin: 100px auto; border: 1px solid #ddd;}
        .tit{ background: #999; height: 30px; color: #fff; font-size: 14px; line-height: 30px; padding-left: 6px; position: relative;}
        .closeBtn{ background: url("Images/a2.gif") no-repeat 0 0; width: 7px; height: 8px; position: absolute; right: 10px; top: 10px; display: block; text-indent: -9999px; cursor: pointer;}
         .closeBtn2{background: url("Images/a1.gif") no-repeat 0 0;}
          .content{padding: 6px;font-size: 12px; overflow: hidden; }
        .content li{ float: left; width: 100px; height: 24px; }
        .content li a{ color: #999;}
        .content li a:hover{ color: red;}
        .clsBot{ display: block; clear: both; background: url("Images/a5.gif") no-repeat right 0; padding-right: 16px; float: right; width: 26px; cursor: pointer; color: blue;}
    </style>
</head>
<body>
    <div class="box">
        <div class="tit">
            <h2>图书分类</h2>
            <span class="closeBtn">关闭</span>
        </div>
        <div class="content">
            <ul>
                <li><a href="#">小说</a><i> ( 1110 ) </i></li>
                <li><a href="#">文艺</a><i> ( 230 ) </i></li>
                <li><a href="#">青春</a><i> ( 1430 ) </i></li>
                <li><a href="#">少儿</a><i> ( 1560 ) </i></li>
                <li><a href="#">生活</a><i> ( 870 ) </i></li>
                <li><a href="#">社科</a><i> ( 1460 ) </i></li>
                <li><a href="#">管理</a><i> ( 1450 ) </i></li>
                <li><a href="#">计算机</a><i> ( 1780 ) </i></li>
                <li><a href="#">教育</a><i> ( 930 ) </i></li>
                <li><a href="#">工具书</a><i> ( 3450 ) </i></li>
                <li><a href="#">引进版</a><i> ( 980 ) </i></li>
                <li><a href="#">其它类</a><i> ( 3230 ) </i></li>
            </ul>
            <span class="clsBot">简化</span>
        </div>
    </div>
</body>
</html>