导航页：javascript
<!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>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<link rel="stylesheet" type="text/css" href="" />
<style type="text/css">
body{margin:0;} /* 必须把导航页和内容页的边缘都设为0，不然顶部会留白边 */
</style>
<script type="text/javascript"></script>
</head>
<body>
<table width="960" border="0" cellpadding="0" cellspacing="0" align="center"> <!--表格三参为0，不然顶部会留白边-->
<tr background="nav.png" align="center">
<td height="96">首页</td>
<td>导航1</td>
<td>导航2</td>
<td>导航3</td>
<td>导航4</td>
<td>导航5</td>
<td>导航6</td>
</tr>
</table>
</body>
</html>
主页（在主页中嵌套导航页<iframe>）：
<!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>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<link rel="stylesheet" type="text/css" href="" />
<style type="text/css">
body{margin:0;} /* 必须把导航页和内容页的边缘都设为0，不然顶部会留白边 */
</style>
<script type="text/javascript"></script>
</head>
<body>
<table width="960" align="center" border="0" cellpadding="0" cellspacing="0"> <!--将ifame放在表格中，不然不会居中。表格三参为0，不然顶部会留白边-->
<tr>
<td><iframe src="toptest.html" width="960" height="96" scrolling="no" border="0" frameborder="0" align="center"></iframe></td> <!--将ifame的src指定为导航页-->
</tr>
</table>
</body>
</html>