子frame中获取父frame中的值
有这样一个父frame
<html><frameset rows="100,485,*" border="0" frameBorder="no" frameSpacing="0">
<frame src="pic/sonframetop.htm" noResize="noresize" scrolling="no"></frame>
<frameset cols="17%,*" border="0" frameBorder="no" frameSpacing="0">
<frame name="leftFrame" id="leftFrame" src="pic/sonframeleft.htm" noResize="noresize" scrolling="no"></frame>
<frame name="mainFrame" id="mainFrame" src="pic/sonframeright.htm" noResize="noresize" scrolling="no"></frame>
</frameset>
<frame src="pic/sonframedown.htm" noResize="noresize" scrolling="no"></frame>
</frameset>
<input type="hidden" name="father" id="father" value="father">
</html>