demo.htm<input type="text" name="txt" value="baobao">
<input type="button" onclick="window.open('in.htm')" value="Open">in.htm<input type="button" onclick="alert(window.opener.document.all.txt.value)"
value="Get">利用window.opener指向父窗口
<input type="button" onclick="window.open('in.htm')" value="Open">in.htm<input type="button" onclick="alert(window.opener.document.all.txt.value)"
value="Get">利用window.opener指向父窗口
http://dev.csdn.net/develop/article/29/29975.shtm