急，求解：两个框架，一个包涵另一个，如何在一个框架某一个页里向另一个框架某一个页里写文本框值

A和B,A包含B,A是你的网来的,而B是人家的跟你不同域的?
然后你想用A的JS填写B中的某个INPUT ?
不可以,除非有洞可用,
可以,用HTA,可以跨域操作,前提在本地运行,

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parent.document.parentWindow.Right.RightBottom.document.getElementById("txt").value = "good";
whole.html
-----------------------------------------------------------
<HTML>
<HEAD>
<TITLE>WebForm1</TITLE>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<frameset cols="30%,*" frameSpacing="0" frameBorder="1">
<frame src="Left.aspx" name="Left">
<frame src="Right.aspx" name="Right">
</frameset>
</HTML>
------------------------------------------------------------------------------Left.html
------------------------------------------------------------------------------
<HTML>
<HEAD>
<title>Left</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout" bgcolor="#ff2266">
<form id="Form1" method="post" runat="server">
<FONT face="宋体"><INPUT style="Z-INDEX: 101; LEFT: 80px; WIDTH: 72px; POSITION: absolute; TOP: 120px; HEIGHT: 24px"
type="button" value="Button" onclick="filltxt()"></FONT>
<script language="javascript">
function filltxt()
{
parent.document.parentWindow.Right.RightBottom.document.getElementById("txt").value = "good";
}
</script>
</form>
</body>
</HTML>
-----------------------------------------------------------------------------------Right.html
-----------------------------------------------------------------------------------
<HTML>
<HEAD>
<TITLE>Right</TITLE>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<frameset rows="20%,*" frameSpacing="0" frameBorder="1">
<frame src="Right_top.aspx" name="RightTop">
<frame src="Right_bottom.aspx" name="RightBottom">
</frameset>
</HTML>
---------------------------------------------------------------------------------Right_top.html
----------------------------------------------------------------------------------
<HTML>
<HEAD>
<title>Right_top</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout" bgcolor="#00aaff">
<form id="Form1" method="post" runat="server">
</form>
</body>
</HTML>
-----------------------------------------------------------------------------------Right_bottom.html
----------------------------------------------------------------------------------
<HTML>
<HEAD>
<title>Right_bottom</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout" bgcolor="#22ee00">
<form id="Form1" method="post" runat="server">
<FONT face="宋体"><INPUT id="txt" style="Z-INDEX: 101; LEFT: 152px; WIDTH: 152px; POSITION: absolute; TOP: 88px; HEIGHT: 48px"
type="text" size="20"></FONT>
</form>
</body>
</HTML>
有两个框架,一个包含另一个?你的意思是不是
<body><iframe id="ifm"></iframe></body>这样的
要在父页面改变ifm中的文本框的内容吧ifm.document.getElementById("textid").value="meixx";ordocument.frames[0].document.getElementById("textid").value="meixx";没经过测试,你试下好了
parent.frameName.document.getElementById("textID").value="text"