您的位置：首页 > Web前端 > JavaScript

JS 实现点击展开菜单

2014-04-22 23:18 344 查看

1：获取事件源的两种方式

2： overflow 控制展现

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

<script type="text/javascript">
// 第二种通过this对象获取时间源
function list(node){
//alert(""");
var dlNode = node.parentNode;
var nodes = document.getElementsByTagName("dl");
//alert(nodes.length);
for (var i = 0; i < nodes.length; ++i) {
if (nodes[i] == dlNode) {
if (nodes[i].className == "close") {
nodes[i].className = "open";
} else {
nodes[i].className = "close";
}
} else {
nodes[i].className = "close";
}
}
}
/* 第一种通过event获取时间源
function list(){
var node = event.srcElement;
var dlNode = node.parentNode;
var nodes = document.getElementsByTagName("dl");
//alert(nodes.length);
for (var i = 0; i < nodes.length; ++i) {
if (nodes[i] == dlNode) {
if (nodes[i].className == "close") {
nodes[i].className = "open";
} else {
nodes[i].className = "close";
}
} else {
nodes[i].className = "close";
}
}
} */
</script>

<style type="text/css">
.open{
overflow: visible;
}
.close{
overflow: hidden;
}
dl{
overflow: hidden;
height: 16px;
}
</style>
</head>

<body>
<dl>
<dt onclick="list(this)">会员管理</dt>
<dd>添加会员</dd>
<dd>删除会员</dd>
<dd>查询会员</dd>
</dl>
<dl>
<dt onclick="list(this)">会员管理</dt>
<dd>添加会员</dd>
<dd>删除会员</dd>
<dd>查询会员</dd>
</dl>
<dl>
<dt onclick="list(this)">会员管理</dt>
<dd>添加会员</dd>
<dd>删除会员</dd>
<dd>查询会员</dd>
</dl>
<dl>
<dt onclick="list(this)">会员管理</dt>
<dd>添加会员</dd>
<dd>删除会员</dd>
<dd>查询会员</dd>
</dl>
<dl>
<dt onclick="list(this)">会员管理</dt>
<dd>添加会员</dd>
<dd>删除会员</dd>
<dd>查询会员</dd>
</dl>
</body>
</html>

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航