试试回调主窗口的函数:test.html:
---------------------------------------------------------
<HTML>
<HEAD>
<TITLE> main window </TITLE>
<SCRIPT LANGUAGE="JavaScript">
<!--
function setValue(v){
document.getElementById("txt").innerHTML=v.replace(/\n/g,"<br>")
}
//-->
</SCRIPT>
</HEAD><BODY>
<button onclick="javascript:window.open('test2.html', '_blank', 'modal=yes');">test</button>
<BR>
<layer id="txt"></layer>
</BODY>
</HTML>------------------------------------------------------------test2.html------------------------------------------------------------
<HTML>
<HEAD>
<TITLE> emu </TITLE>
</HEAD>
<BODY>
<textarea onchange="opener.setValue(value)" cols=50 rows=12></textarea>
</BODY>
</HTML>
----------------------------------------------------------ns6.2通过。