修改button值

/// <summary>设置button可用</summary>
function FunSetButtonTrue(name) {
    document.getElementById(name).disabled = false;//true不可用 false可用
    document.getElementById(name).value = "保存";
}

/// <summary>设置button不可用</summary>
function FunSetButtonFalse(name) {
    document.getElementById(name).disabled = true;//true不可用 false可用
    document.getElementById(name).value = "正在提交...";
}

/// <summary>获取参数</summary>
function RequestName(strName) {
    var strHref = window.document.location.href;
    var intPos = strHref.indexOf("?");
    var strRight = strHref.substr(intPos + 1);
    var arrTmp = strRight.split("&");
    for (var i = 0; i < arrTmp.length; i++) {
        var arrTemp = arrTmp[i].split("=");
        if (arrTemp[0].toUpperCase() == strName.toUpperCase())
            return arrTemp[1];
    }
    return "";
}

用法

 function FunSubmit() {
            var identificationImage = $("#mainbox img").attr("src");
            var driverLicenseImage = $("#mainbox1 img").attr("src");
            var creditCardImage = $("#mainbox2 img").attr("src");
            var hidValue = $("input[name='__RequestVerificationToken']").val();
            FunSetButtonFalse("btnSubmit"); //此处应用
            $.ajax({
                url: "/Verification/Index",
                dataType: "json",
                type: "POST",
                data: { identificationImage: identificationImage, driverLicenseImage: driverLicenseImage, creditCardImage: creditCardImage, __RequestVerificationToken: hidValue },
                success: function(data) {
                    if (data.Status == "0") {
                        alert(data.ErrMsg);
                        FunSetButtonTrue("btnSubmit"); //此处应用
                        return;
                    } else {
                        alert(data.ErrMsg);
                        FunSetButtonTrue("btnSubmit");  //此处应用
                        window.location.href = window.location.href;
                    }
                },
                error: function() {
                    alert("网络错误,请重试!");
                }
            });
        }

 效果