导航菜单收缩展开程序

<html>
<head>
<link type="text/css" rel="stylesheet" href="css.css" />
<SCRIPT language=javascript1.2>
function showsubmenu(sid)
{
whichEl = eval("submenu" + sid);
if (whichEl.style.display == "none")
{
eval("submenu" + sid + ".style.display=\"\";");
}
else
{
eval("submenu" + sid + ".style.display=\"none\";");
}
}
</SCRIPT>
</head>
<body>
   <div >荣誉认证维护</a></div>
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</body>
</html>