急!!!
我现在有一个框架,想关闭它的时候弹出一个页面(不是窗口),如何实现?请指教
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<LINK href="css/style.css" rel=stylesheet type=text/css>
</head>
<frameset rows="80,*" cols="*" frameborder="NO" border="0" framespacing="0" onUnload="window.open('3.html')">
<frame src="include/header_left.php" name="topFrame" scrolling="NO" noresize>
<noframes><body>
</body></noframes>
<frameset rows="*" cols="20,130,660,40" framespacing="0" frameborder="NO" border="0" ROWS="50,51" COLS=",">>
<frame src="" name="leFrame">
<frame src="left.php" name="mainFrame">
<frame src="right.php" name="rightFrame">
<frame src="" name="reFrame">
</frameset>
</frameset>
<noframes><body>
</body></noframes>