<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="Generator" content="EditPlus®">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<title>Document</title>
<script >
function down(){
document.getElementById("td").style.display='block';
document.getElementById("yg").href="javascript:top()";
document.getElementById("yg").style.background="url('images/top.gif') no-repeat 60px 1px";
}
function top(){
document.getElementById("td").style.display='none';
document.getElementById("yg").href="javascript:top()";
document.getElementById("yg").style.background="url('images/top.gif') no-repeat 60px 1px";
}
</script>
</head>
<style>
*{margin:0;padding:0;}
a{text-decoration:none;}
ul,li{list-style:none;}
#td{border:1px solid #ccc;padding:5px;width:100px;}
#yg{background:url('images/down.gif') no-repeat 60px 1px ;width:80px;display:inline-block;}
</style>
<body>
<a href="javascript:down()" id="yg">员工通道</a>
<ul id="td" style="display:none;">
<li><a href="">OA系统登陆1</a></li>
<li><a href="">OA系统登陆2</a></li>
<li><a href="">OA系统登陆3</a></li>
</ul>
</body>
</html>
