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doRequestUsingGET() {
createXMLHttpRequest();
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xmlHttp.onreadystatechange = handleStateChange;
xmlHttp.open("GET", url, true);
xmlHttp.send(null);
}
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function doRequestUsingPOST() {
createXMLHttpRequest();
var url = "GetAndPostExample?timeStamp=" + new Date().getTime();
xmlHttp.open("POST", url, true);
xmlHttp.onreadystatechange = handleStateChange;
xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlHttp.send(queryString);
}
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