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1 Add  the following code to .aspx
<script>  
  function fresh() {
         {
            window.opener.document.getElementById("ControlId").click();  //ControlId -- meaning parent control
        }
<script>
2.Add the following code to .cs,if you want to refresh master page control.
ScriptManager.RegisterStartupScript(Page, Page.GetType(), Guid.NewGuid().ToString(), "fresh(');", true);


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var uRl = "jsReadXml.xml";
var xmlDoc;
//³õʼ»¯£¬¸øÉÏÊö¶¨Òå±äÁ¿¸³Öµ
// function showcurcity(){
if(window.ActiveXObject)
{
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  <html>
    <body>
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<script>
function test()
{
if(document.a.b.value.length>50)
{
alert("²»Äܳ¬¹ý50¸ö×Ö·û£¡");
document.a.b.focus();
return false;
}
}
</script>
<form name=a onsubmit="return test()">
<textarea name="b" cols="40" wrap="VIRTUAL" rows="6"></textarea&g ......

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<html>
<head>
<mce:script type="text/javascript"><!--
function sendMessage(msg ......
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