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javascript DOM版/javascript DOM setTimeout版/jQurey版菜单下拉 javascript drop-down menu

2011-11-28 11:21 246 查看

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Drop-down menu</title>
<style type="text/css">
body {font:normal 11px verdana;margin:0;padding:0;}
ul{margin:0;padding:0;list-style:none;}
h3{width:400px;margin:30px auto;text-align:center;}
.nav{width:150px;border-bottom: 1px solid #ccc;margin:0 auto;}
.nav li{height:22px;line-height:22px;position:relative;color:#777;background:#fff;border:1px solid #ccc;border-bottom:0;vertical-align:top;}
.nav li ul{position:absolute;width:150px;left:148px;top:0;display:none;border-bottom: 1px solid #ccc;}
.nav li a{display:block;height:22px;text-decoration:none;color:#777;padding:0 10px;cursor:pointer;}
.nav li a:hover{color:#E2144A;background:#f9f9f9;}
.nav li.hover ul{display:block;}
.nav li .hover{display:block;}
</style>
</head>
<body>
<h3>----------javascript DOM版 ----------</h3>
<ul class="nav" id="javascriptNav">
<li><a href="#">Home</a></li>
<li><a href="#">About</a>
<ul>
<li><a href="#">History</a></li>
<li><a href="#">Team</a></li>
<li><a href="#">Offices</a></li>
</ul>
</li>
<li><a href="#">Services</a>
<ul>
<li><a href="#">Web Design</a></li>
<li><a href="#">Internet Marketing</a></li>
<li><a href="#">Hosting</a></li>
<li><a href="#">Domain Names</a></li>
<li><a href="#">Broadband</a></li>
</ul>
</li>
<li><a href="#">Contact Us</a>
<ul>
<li><a href="#">United Kingdom</a></li>
<li><a href="#">France</a></li>
<li><a href="#">USA</a></li>
<li><a href="#">Australia</a></li>
</ul>
</li>
</ul>
<script type="text/javascript">
function startList(id){
if(!document.getElementById(id)) returnfalse;
if(!document.getElementsByTagName) returnfalse;
var navRoot = document.getElementById(id);
for (var i=0; i<navRoot.childNodes.length; i++) {
var node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" hover";
}
node.onmouseout=function() {
this.className=this.className.replace(" hover", "");
}
}
}
}
window.onload =function(){
startList("javascriptNav");
}
</script>
<h3>-----------javascript DOM setTimeout版 ----------</h3>
<ul class="nav" id="setTimeoutNav">
<li><a href="#">Home</a></li>
<li onmouseover="showMune('m1')" onmouseout="clearTime()"><a href="#">About</a>
<ul id="m1">
<li><a href="#">History</a></li>
<li><a href="#">Team</a></li>
<li><a href="#">Offices</a></li>
</ul>
</li>
<li onmouseover="showMune('m2')" onmouseout="clearTime()"><a>Services</a>
<ul id="m2">
<li><a href="#">Web Design</a></li>
<li><a href="#">Internet Marketing</a></li>
<li><a href="#">Hosting</a></li>
<li><a href="#">Domain Names</a></li>
<li><a href="#">Broadband</a></li>
</ul>
</li>
<li onmouseover="showMune('m3')" onmouseout="clearTime()"><a href="#">Contact Us</a>
<ul id="m3">
<li><a href="#">United Kingdom</a></li>
<li><a href="#">France</a></li>
<li><a href="#">USA</a></li>
<li><a href="#">Australia</a></li>
</ul>
</li>
</ul>
<script type="text/javascript">
var clearElement,liMune;
function showMune(id){
if(!document.getElementById(id)) returnfalse;
if(clearElement){
window.clearTimeout(clearElement);
clearElement =null;
}
hideMune();
liMune = document.getElementById(id);
liMune.className +=" hover";
}
function hideMune(){
if(liMune){
liMune.className=liMune.className.replace(" hover", "");
}
}
function clearTime(){
clearElement = window.setTimeout(hideMune,500);
}

</script>
<h3>-----------jQurey版 ----------</h3>
<ul class="nav" id="jQureyNav">
<li><a href="#">Home</a></li>
<li><a href="#">About</a>
<ul>
<li><a href="#">History</a></li>
<li><a href="#">Team</a></li>
<li><a href="#">Offices</a></li>
</ul>
</li>
<li><a href="#">Services</a>
<ul>
<li><a href="#">Web Design</a></li>
<li><a href="#">Internet Marketing</a></li>
<li><a href="#">Hosting</a></li>
<li><a href="#">Domain Names</a></li>
<li><a href="#">Broadband</a></li>
</ul>
</li>
<li><a href="#">Contact Us</a>
<ul>
<li><a href="#">United Kingdom</a></li>
<li><a href="#">France</a></li>
<li><a href="#">USA</a></li>
<li><a href="#">Australia</a></li>
</ul>
</li>
</ul>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$("#jQureyNav li").hover(
function(){
$(this).addClass("hover");
},
function(){
$(this).removeClass("hover")
}
);
});
</script>
</body>
</html>

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javascript DOM版/javascript DOM setTimeout版/jQurey版 菜单下拉 javascript drop-down menu

javascript DOM版/javascript DOM setTimeout版/jQurey版菜单下拉 javascript drop-down menu