ajax应用

    if (/[^d.]/.test(ip)) {
        return false;
    }
    ipArray = ip.split(".");
    if (ipArray.length != 4) {
        return false;
    }
    for (var i = 0; i < 4; i++) {
        if (ipArray[i].length == 0 || ipArray[i] > 255) {
            return false;
        }
    }
    return true;
}
function getIp() {
    if (checkip()) {
        createXHR();
        req.open("GET", "IpSearch.asp?IP=" + getObj("Ip").value, true);
        req.send();
        req.onreadystatechange = handleStateChange;
    } else {
        getObj("Disp_IPArea").innerText = "u8fd4u56deu9519u8befuff1au4e0du662fu6b63u786eu7684ip";
    }
}
function handleStateChange() {
    if (req.readyState<4){getObj("Disp_IPArea").innerText = "正在查询ip["+getObj("Ip").value+"]..."}
    else if (req.readyState == 4 && req.status == 200) {
        getObj("Disp_IPArea").innerText = req.responseText;
    } else {
        getObj("Disp_IPArea").innerText = "u67e5u8be2u8fc7u7a0bu51fau73b0u9519u8befuff0cu8bf7u91cdu8bd5u6216u8054u7cfbu7ba1u7406u5458uff01";
    }
}
function checkMobile() {
    var sMobile = getObj("Mobile").value;
    if (!(/^13[0-9]d{4,8}$/.test(sMobile))) {
        return false;
    }
    return true;
}
function getMobile() {
    if (checkMobile()) {
        createXHR();
        req.open("GET", "MobileSearch.asp?Mobile=" + getObj("Mobile").value, true);
        req.send();
        req.onreadystatechange = handleStateChange2;
    } else {
        getObj("Disp_MobileArea").innerText = "u8fd4u56deu9519u8befuff1au4e0du662fu5b8cu6574u768411u4f4du624bu673au53f7u6216u8005u6b63u786eu7684u624bu673au53f7u524du4e03u4f4d";
    }
}
function handleStateChange2() {
    if (req.readyState<4){getObj("Disp_MobileArea").innerText = "正在查询手机号码["+getObj("Mobile").value+"]..."}
    else if (req.readyState == 4 && req.status == 200) {
        getObj("Disp_MobileArea").innerText = req.responseText;