accordion手风琴效果
网站常用效果之一，以下为简化版，用于学习javascript基础知识。
效果图：
accordion手风琴效果 - 纯js简化版
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>accordion手风琴效果 - 纯js简化版</title>
<style type="text/css">
*{margin: 0; padding: 0;}
#acclist {list-style: none; 400px; margin: 10px; padding: 0;}
#acclist li { background: #ccc; list-style: none; margin: 0 0 1px 0; padding: 0;}
#acclist li h3 {font-size: 13px; color: #fff; background: #666; padding: 5px;cursor:pointer;}
#acclist li div { display: none; padding: 5px; height: 80px;}
</style>
<script type="text/javascript">
window.onload = function() {
var acc = document.getElementById('acclist');
var accli = acc.getElementsByTagName('li');
for(var i=0; i<accli.length; i++) {
accli[i].getElementsByTagName('h3')[0].index = i;
accli[i].getElementsByTagName('h3')[0].onmouseover = function() {
for(var a=0; a<accli.length; a++) {
accli[a].getElementsByTagName('div')[0].style.display = "none";
}
if(accli[this.index].getElementsByTagName('div')[0].style.display == "block") {
accli[this.index].getElementsByTagName('div')[0].style.display = "none";
} else {
accli[this.index].getElementsByTagName('div')[0].style.display = "block"
}
}
}
accli[0].getElementsByTagName('div')[0].style.display = "block";
}
</script>
</head>
<body>
<div>
<ul id="acclist">
<li>
<h3>acctit01</h3>
<div>accdiv01</div>
</li>
<li>
<h3>acctit02</h3>
<div>accdiv02</div>
</li>
<li>
<h3>acctit03</h3>
<div>accdiv03</div>
</li>
<li>
<h3>acctit04</h3>
<div>accdiv04</div>
</li>
<li>
<h3>acctit05</h3>
<div>accdiv05</div>
</li>
<li>
<h3>acctit06</h3>
<div>accdiv06</div>
</li>
</ul>
</div>
</body>
</html>