JavaScript制作的可折叠弹出式菜单示例

2014-04-04 20

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>可折叠弹出式菜单</title> 
</head> 
<style> 
body {background-color: #FFF;color: #000;} 
div {margin-bottom: 10px;} 
ul.menu {display: none;list-style-type: none;margin-top: 5px;} 
a.menuLink {font-size: 16px;font-weight: bold;} 
</style> 
<script type="text/javascript"> 
window.onload = initAll; 
function initAll() { 
var allLinks = document.getElementsByTagName("a"); 
for (var i=0; i<allLinks.length; i++) { 
if (allLinks[i].className.indexOf("menuLink") > -1) { 
allLinks[i].onclick = toggleMenu; 
} 
} 
} 
function toggleMenu() { 
var startMenu = this.href.lastIndexOf("/")+1; 
var stopMenu = this.href.lastIndexOf("."); 
var thisMenuName = this.href.substring(startMenu,stopMenu); 
var thisMenu = document.getElementById(thisMenuName).style; 
if (thisMenu.display == "block") { 
thisMenu.display = "none"; 
} 
else { 
thisMenu.display = "block"; 
} 
return false; 
} 
</script> 
<body> 
<h1>Shakespeare's Plays</h1> 
<div> 
<a href="menu1.html" class="menuLink">Comdeis</a> 
<ul class="menu" id="menu1"> 
<li><a href="pg1.html">All's Well That Ends Well</a></li> 
<li><a href="pg2.html">As You Like It</a></li> 
<li><a href="pg3.html">Love's Labour's Lost</a></li> 
<li><a href="pg4.html">The Comedy of Errors</a></li> 
</ul> 
</div> 
<div> 
<a href="menu2.html" class="menuLink">Tragedies</a> 
<ul class="menu" id="menu2"> 
<li><a href="pg5.html">Anthony & Cleopatra</a></li> 
<li><a href="pg6.html">Hamlet</a></li> 
<li><a href="pg7.html">Romeo & Juliet</a></li> 
</ul> 
</div> 
<div> 
<a href="menu3.html" class="menuLink">Histories</a> 
<ul class="menu" id="menu3"> 
<li><a href="pg8.html">Henry IV, Part1</a></li> 
<li><a href="pg9.html">Henry IV, Part2</a></li> 
</ul> 
</div> 
</body> 
</html>
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