codegeeks
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Here is a sample code which uses POST method in XMLHTTP request.

var url="ajaxpage.php";
var parms="name=bobby"; //Parameters
xmlHttp.open("POST", url, true);
xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlHttp.setRequestHeader("Content-length", parms.length);
xmlHttp.setRequestHeader("Connection", "close");
xmlHttp.onreadystatechange = function() {
//On ready state execute the below code
if(http.readyState == 4 || http.status == 200) {
alert(xmlHttp.responseText);
}
}
xmlHttp.send(parms);

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