javascript 弹出窗口返回值 (open, showModalDialog)

<mce:script language="javascript" type="text/javascript"><!--

function returnValue()
{
window.opener.document.all.text1.value=document.getElementById("returnText").value;
window.close();
}
// --></mce:script>
<p>
<input type="button" name="Submit" value="提交" onclick="returnValue();">
<input name="returnText" type="text" id="returnText">
</p>