我来把格式怎规范点：
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "
http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript">
function openNewWindow() {
window.open("forwardnewpage.jsp","","left=30,top=30,height=620,width=820,toolbar=no,menubar=no,scrollbars=no,resizable=no,status=no,location=no,directories=no,copyhistory=no");
window.opener=null;
window.open("","_self");
window.close();
}
</script>
</head>
<body>
<input type="button" value="打开新窗口关闭旧的" onclick="openNewWindow()">
</body>
</html>
新窗口页面代码（如果浏览器允许弹窗可以不要onload这段代码）:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "
http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>new page</title>
</head>
<body onload="window.opener.opener=null; window.opener.close();">
<table border="1" cellpadding="1" cellspacing="0" align="center" style="text-align: center;">
<caption>表格标题</caption>
<tr>
<th>标题1</th>
<th>标题2</th>
<th>标题3</th>
</tr>
<tr>
<td>测试</td>
<td>测试</td>
<td>测试</td>
</tr>
<tr>
<td>测试</td>
<td>测试</td>
<td>测试</td>
</tr>
</table>
<br>
</body>
</html>