两个窗口交互


1.去SELECE的文本:document.getElementById("groupId").options[document.getElementById("groupId").selectedIndex].text;

MAIN.HTML
  ...
<SCRIPT LANGUAGE="JavaScript">

function showModalWindow() {
var uri="dialog.htm?port=???";
var windowFeatures = "dialogWidth:500px;dialogHeight:500px;center:yes";
var returnVal=window.showModalDialog(uri,null,windowFeatures);
if(returnVal) {
document.getElementById("txt1").value=returnVal;
}
}

</SCRIPT>
</HEAD>

<BODY>
<INPUT TYPE="text" name="txt1" id="txt1"/>
<INPUT TYPE="button" onclick="showModalWindow();" value="click">
</BODY>
....
DIALOG.HTML
<SCRIPT LANGUAGE="JavaScript">
<!--
function ok() {
window.returnValue=document.getElementById("txt2").value;
window.close();
}

/*function cancel() {
window.returnValue="oldvalue";
window.close();
}

window.onunload=cancel;*/
//-->
</SCRIPT>
</HEAD>

<BODY>
<INPUT TYPE="text" NAME="txt2" id="txt2">
<INPUT TYPE="button" value="ok" onclick="ok();">
</BODY>
</HTML>

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