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<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title> </title>
<script type="text/javascript" >
var xmlHttp = null;
if (window.xmlHttpRequest) {// code for IE7, Firefox, Opera, etc.
xmlHttp = new xmlHttpRequest();
}
else if (window.ActiveXObject) {// code for IE6, IE5
xmlHttp = new ActiveXObject("Microsoft.xmlHttp");
}
function IsExistsUserID()
{
var userid = document.getElementById("userId").value;
if (xmlHttp != null) {
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