Ajax POST방식과 GET방식

function createRequestObject() {
    var reqObj;
    if(window.XMLHttpRequest) {
        try {
            reqObj = new XMLHttpRequest();
        } catch(e) {
            reqObj = false;
        }
    } else if(window.ActiveXObject) {
        try {
            reqObj = new ActiveXObject("Msxml2.XMLHTTP");
        } catch(e) {
            try {
                reqObj = new ActiveXObject("Microsoft.XMLHTTP");
            } catch(e) {
                reqObj = false;
            }
        }
    }
    return reqObj;
}
var req = createRequestObject();

//POST 방식
function functionPostName(){

var param ="";
param += "Get="+Value;    //Get : 파라메터 변수 Value : 파라메터 값
param += "&Get2="+Value2;
req.open("POST","URL");     //URL : 경로
req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
req.onreadystatechange = resultFunction;
req.send(param);

}
function resultFunction(){

if(req.readyState==4){// 정상일때,

//실행코드

}

}

//GET 방식
function functionGetName(){

var url = "url?Get="+Value+"&Get2="+Value2;
req.open("GET",url,true);
req.onreadystatechange = resultFunction;
req.send();

}