Calling a function inside a function asynchronously using JQuery

var Test;

$(function () {

    var ServicePath = rootPath + "Services/TestService.asmx/";

    var ajxcalls = function (methodname, param, success, error) {

        $.ajax({

            type: "POST",

            contentType: "application/json; charset=utf-8",

            cache: false,

            async: false,

            url: ServicePath + methodname,

            data: param,

            dataType: 'json',

            success: success,

            error: error

        });

    };

    Test = {

        Init: function () {

            Test.TestCheck();

        },

        TestCheck: function () {

            var isActive = false;

            var par = JSON2.stringify({ ParameterValue: value });

            ajxcall("TestIsActive", par, function (data) { isActive = data.d; }, function () { Alert('Error'); });

            Alert(isActive);

        }

    };

    Test.Init();

});