js implements foldable and expandable accordion menu effect

js implements foldable and expandable accordion menu effect_javascript skills

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Release： 2016-05-16 15:40:11

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The example in this article describes the implementation of the accordion menu effect that can be folded and expanded using js. Share it with everyone for your reference. The details are as follows:

This is a collapsible and expandable menu, an accordion menu, a collapsed and stretched web page menu implemented using CSS and JavaScript technology. The code is simple and comes from a foreigner's code work. I hope everyone likes it.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-hidden-show-sfq-style-menu-codes/

The specific code is as follows:

<!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=gb2312" />
<title>折叠展开的菜单</title>
</head>
<body><style type="text/css">
.menutitle{
cursor:pointer;
margin-bottom: 5px;
background-color:#ECECFF;
color:#000000;
width:140px;
padding:2px;
text-align:center;
font-weight:bold;
/*/*/border:1px solid #000000;/* */
}
.submenu{
margin-bottom: 0.5em;
}
</style>
<script type="text/javascript">
if (document.getElementById){ //DynamicDrive.com change
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')
}
function SwitchMenu(obj){
if(document.getElementById){
var el = document.getElementById(obj);
var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
if(el.style.display != "block"){ //DynamicDrive.com change
for (var i=0; i<ar.length; i++){
if (ar[i].className=="submenu") //DynamicDrive.com change
ar[i].style.display = "none";
}
el.style.display = "block";
}else{
el.style.display = "none";
}
}
}
</script>
<!-- Keep all menus within masterdiv-->
<div id="masterdiv">
<div class="menutitle" onclick="SwitchMenu('sub1')">Site Menu</div>
<span class="submenu" id="sub1">
- <a href="#">What's New</a><br>
- <a href="#">What's hot</a><br>
- <a href="#">Revised Scripts</a><br>
- <a href="#">More Zone</a>
</span>
<div class="menutitle" onclick="SwitchMenu('sub2')">FAQ/Help</div>
<span class="submenu" id="sub2">
- <a href="#">Usage Terms</a><br>
- <a href="#">DHTML FAQs</a><br>
- <a href="#">Scripts FAQs</a>
</span>
<div class="menutitle" onclick="SwitchMenu('sub3')">Help Forum</div>
<span class="submenu" id="sub3">
- <a href="#">Coding Forums</a><br>
</span>
<div class="menutitle" onclick="SwitchMenu('sub4')">Cool Links</div>
<span class="submenu" id="sub4">
- <a href="http://www.javascriptkit.com">JavaScript Kit</a><br>
- <a href="http://www.jb51.net">脚本之家</a><br>
- <a href="http://www.cooltext.com">Cool Text</a><br>
</span>
</div>
</body>
</html>

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I hope this article will be helpful to everyone’s JavaScript programming.