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{
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{
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function check_user(id) {
if (id == "")
return;
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var url = "../RegistValidate.ashx?username=" + escape(id);
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = ShowResult;
xmlHttp.send(null);
}
function ShowResult() {
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
var s;
s = xmlHttp.responseText;
if (s== "OK")
document.getElementById("userid_msg").innerHTML = "<img src='images/correct.gif' align='absMiddle'>";
else
document.getElementById("userid_msg").innerHTML = "<im
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