function createXHR() {    var request;    if (typeof (XMLHttpRequest) == ‘undefined‘) {        request = new ActiveXObject(‘Microsoft.XMLHTTP‘);    } else {        request = new XMLHttpRequest();    }    return request;}var xhr = createXHR();function ajax(method, url, isAsync, data, fnsuccess, fnerror) {    xhr.open(method, url, isAsync);    if (method.toLocaleLowerCase() == ‘post‘) {        xhr.setRequestHeader(‘Content-Type‘, ‘application/x-www-form-urlencoded‘);    }    xhr.onreadystatechange = function () {        if (xhr.readyState == 4) {            if (xhr.status == 200) {                return fnsuccess(xhr.responseText);            } else {                return fnerror();            }        }    };    xhr.send(data);}function get(url, fnsuccess) {    return ajax("get", url, true, null, fnsuccess, null);}function post(url, data, fnsuccess) {    return ajax("post", url, true, data, fnsuccess, null);}