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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>MyHtml.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
</head>
<style>
.vsli{float: left;width: 100px;}
.vsli span{cursor: pointer;}
</style>
<body>
<ul>
<li class="vsli">
<a>1</a><span> > </span>
<div class="next-nav" style="display: none;">
<ul>
<li>一级</li>
<li>二级</li>
<li>三级</li>
<li>全部</li>
</ul>
</div>
</li>
<li class="vsli">
<a>2</a><span> > </span>
<div class="next-nav" style="display: none;">
<ul>
<li>一级</li>
<li>二级</li>
<li>三级</li>
<li>全部</li>
</ul>
</div>
</li>
</ul>
</body>
<script src="jquery-1.7.2.min.js"></script>
<script>
$(".vsli span").on("click", function () {
$(this).next().toggle();
});
$(".next-nav li").on("click", function () {
$(this).parent().parent().css("display","none");
$(this).parents("li").find("a").html($(this).html());
});
</script>
</html>