我用jsp+javascript实现一个简单的折叠式菜单,可是就是子菜单不隐藏,本来应当是我的鼠标放上去之后它就显示里面的子菜单,可是现在它全部显示出来,不隐藏,现在我把代码贴出来,大家帮忙看看,折磨死我了.就一个文件
MyJsp.jsp文件:<%@ page language="java" import="java.util.*" pageEncoding="gbk"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'MyJsp.jsp' starting page</title>
<link rel="stylesheet" type="text/css" href="styles.css">
<style type="text/css">
<!--
.menu a{
color:#000000;text-decoration:none;
}
.menu a:hover{
text-decoration:underline;
}
.menuHead{
font-weight:bold;font-size:larger;background-color:#ff00ff;display:block;
}
.menuChoices{
background-color:#00cc00;width:150px;display:block;
}
#search{
position:absolute;top:100px;left:10px;width:150px;float:left;
}
#search1{
position:absolute;top:100px;left:160px;width:150px;float:left;
}
#search2{
position:absolute;top:100px;left:310px;width:150px;float:left;
}
-->
</style>
</head>
<body>
<script type="text/javascript">
<!--
(document.getElementById()?DOMCapable=true:DOMCapable=false);
function showover(name){
if(DOMCapable){
var themenu=window.document.getElementById(name+"add");
themenu.style.visibility='visible';
}
}
function hiddenover(name){
if(DOMCapable){
var themenu=window.document.getElementById(name+"add");
themenu.style.visibility='hidden';
}
}
if(DOMCapable){
hiddenover("search");
hiddenover("search1");
hiddenover("search2");
}
-->
</script>
<div id="search" class="menu" onmouseover="showover('search');" onmouseout="hiddenover('search');">
<div class="menuHead">搜索站点</div>
<div id="searchadd" class="menuChoices">
<a href="http://www.163.com">163</a>
<a href="http://www.baidu.com">百度</a>
<a href="http://www.google.com">谷歌</a>
<a href="http://www.msn.com">MSN</a>
</div>
</div><div id="search1" class="menu" onmouseover="showover('search1');" onmouseout="hiddenover('search1');">
<div class="menuHead">电子商务站点</div>
<div id="search1add" class="menuChoices">
<a href="http://www.163.com">梅志文</a>
<a href="http://www.baidu.com">刘平</a>
<a href="http://www.google.com">毛爷爷</a>
<a href="http://www.msn.com">毛奶奶</a>
</div></div><div id="search2" class="menu" onmouseover="showover('search2');" onmouseout="hiddenover('search2');">
<div class="menuHead">安全类网站</div>
<div id="search2add" class="menuChoices">
<a href="http://www.163.com">梅志坚</a>
<a href="http://www.baidu.com">梅志全</a>
<a href="http://www.google.com">梅志国</a>
<a href="http://www.msn.com">梅志武</a>
</div>
</div>
</body>
</html>
MyJsp.jsp文件:<%@ page language="java" import="java.util.*" pageEncoding="gbk"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'MyJsp.jsp' starting page</title>
<link rel="stylesheet" type="text/css" href="styles.css">
<style type="text/css">
<!--
.menu a{
color:#000000;text-decoration:none;
}
.menu a:hover{
text-decoration:underline;
}
.menuHead{
font-weight:bold;font-size:larger;background-color:#ff00ff;display:block;
}
.menuChoices{
background-color:#00cc00;width:150px;display:block;
}
#search{
position:absolute;top:100px;left:10px;width:150px;float:left;
}
#search1{
position:absolute;top:100px;left:160px;width:150px;float:left;
}
#search2{
position:absolute;top:100px;left:310px;width:150px;float:left;
}
-->
</style>
</head>
<body>
<script type="text/javascript">
<!--
(document.getElementById()?DOMCapable=true:DOMCapable=false);
function showover(name){
if(DOMCapable){
var themenu=window.document.getElementById(name+"add");
themenu.style.visibility='visible';
}
}
function hiddenover(name){
if(DOMCapable){
var themenu=window.document.getElementById(name+"add");
themenu.style.visibility='hidden';
}
}
if(DOMCapable){
hiddenover("search");
hiddenover("search1");
hiddenover("search2");
}
-->
</script>
<div id="search" class="menu" onmouseover="showover('search');" onmouseout="hiddenover('search');">
<div class="menuHead">搜索站点</div>
<div id="searchadd" class="menuChoices">
<a href="http://www.163.com">163</a>
<a href="http://www.baidu.com">百度</a>
<a href="http://www.google.com">谷歌</a>
<a href="http://www.msn.com">MSN</a>
</div>
</div><div id="search1" class="menu" onmouseover="showover('search1');" onmouseout="hiddenover('search1');">
<div class="menuHead">电子商务站点</div>
<div id="search1add" class="menuChoices">
<a href="http://www.163.com">梅志文</a>
<a href="http://www.baidu.com">刘平</a>
<a href="http://www.google.com">毛爷爷</a>
<a href="http://www.msn.com">毛奶奶</a>
</div></div><div id="search2" class="menu" onmouseover="showover('search2');" onmouseout="hiddenover('search2');">
<div class="menuHead">安全类网站</div>
<div id="search2add" class="menuChoices">
<a href="http://www.163.com">梅志坚</a>
<a href="http://www.baidu.com">梅志全</a>
<a href="http://www.google.com">梅志国</a>
<a href="http://www.msn.com">梅志武</a>
</div>
</div>
</body>
</html>
hiddenover("search");
hiddenover("search1");
hiddenover("search2");
}
我写的是onload="init()"当页面加载完毕后去调用init()方法,这样就不会出现你说的问题了
无法获得 改造一下