把父窗口数据传到子窗口，并设置到子窗口对应元素上。
open.html
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>parent</title>
<script type="text/javascript">
var childWindow;
var i = 0,
j = 1;
function getData(){
childWindow.setData({'a': ++i,'b': ++j});
}
function openWin(){
childWindow = window.open('top.html', 'childWindow', 'alwaysRaised=yes,height=400,width=600');
}
</script>
</head>
<body>
<div>
<button onclick="openWin();">open</button>
</div>
</body>
</html>top.html
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>child</title>
<script type="text/javascript">
function setData(data){
document.getElementById('a').innerHTML = data.a;
document.getElementById('b').innerHTML = data.b;
}
</script>
</head>
<body onload="window.opener.getData();">
<div id="menu">
<button onclick="window.close();">close</button>
</div>
<div>
<label id="a">1</label>
<label id="b">2</label>
</div>
</body>
</html>如果父窗口调用子窗口的函数报undefined，把DOCTYPE删除掉