index.html---------------------------------------------------------------
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>window.open</title>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
<button id="btn" type="button">按鈕打開window.open</button>
</body>
</html>
<script type="text/javascript">
$(function(){
$("#btn").click(function(){
// 設置open頁面title
var setOpenTile = "設置title"
// 設置窗口寬度
var iwidth = 1200
// 設置窗口高度
var iheight = 600
//獲得窗口的垂直位置
var iTop = (window.screen.availHeight - 30 - iheight) / 2;
//獲得窗口的水平位置
var iLeft = (window.screen.availWidth - 10 - iwidth) / 2;
window.open("open.html","setTitle","height="+iheight+", width="+iwidth+",top="+iTop+",left="+iLeft+",toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,status=no");
// 定義全局變量給open頁面調用
window.getTitleFun = setOpenTile
})
})
</script>
open.html---------------------------------------------------------------
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>openTitle</title>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
<button type="button" >確定</button>
</body>
</html>
<script type="text/javascript">
window.onload=function(){
if (window.opener != null) {
document.title = window.opener.getTitleFun;
}
}
</script>