function DoCallbackGet(url, params, Ansyc) {
    url = url + "?" + params;
    try {
        xmlRequest = new XMLHttpRequest();
    } catch (e) {
        try {
            xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {
            xmlRequest = false;
            alert("初始化XMLHttpRequest物件失敗，請檢查瀏覽器是否支援XMLHttpRequest元件");
        }
    }
    xmlRequest.open("GET", url, Ansyc);
    xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xmlRequest.send(null);
    return xmlRequest;
}
function DoCallbackPost(url, params, Ansyc) {
    try {
        xmlRequest = new XMLHttpRequest();
    } catch (e) {
        try {
            xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {
            xmlRequest = false;
            alert("初始化XMLHttpRequest物件失敗，請檢查瀏覽器是否支援XMLHttpRequest元件");
        }
    }
    xmlRequest.open("POST", url, Ansyc);
    xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xmlRequest.send(params);
    return xmlRequest;
}