js网站后台左右管理菜单[可左右关闭]

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>分割栏</TITLE>
<link href="/adminframe.css" rel="stylesheet" type="text/css" />
</head>
<SCRIPT LANGUAGE="JavaScript">
<!--
function showLeftFrame(){
parent.document.getElementById('frameset').cols =

"160,10,*";
document.getElementById('splitAnchor').onclick =

hideLeftFrame;
document.getElementById('splitAnchor').src =

'/admin/first_20.gif';
}
function hideLeftFrame(){
parent.document.getElementById('frameset').cols = "0,10,*";
document.getElementById('splitAnchor').onclick =

showLeftFrame;
document.getElementById('splitAnchor').src =

'/admin/first_21.gif';
}
//-->
</SCRIPT>
<body style="overflow:hidden;background-color:#e0e0e0;

margin:0px;padding:0px;text-align:left;" >
<table width="10" height="100%" border="0" cellpadding="0"

cellspacing="0">
<tr>
<td width="10" valign="middle" class="bian1"><img

src="/admin/first_20.gif" width="8" height="48" id="splitAnchor"

onClick="hideLeftFrame();" style="cursor:pointer" /></td>
</tr>
</table>

</body>
</html>

补充：网页制作,js教程