var loginData = {
            grant_type: 'password',
            username: parmUsername,
            password: parmPassword
        };

        $.ajax({
            beforeSend: function (xhrObj) {
                xhrObj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
            },
            type: 'POST',
            url: 'http://202.189.20.8:8081/api/v1/Token',
            dataType:'json',
            data: loginData
        })
        .done(function (response, textStatus, jqXHR) {
            window.location.replace('views/mainpage.html');
        })
        .fail(function (jqXHR, textStatus, errorThrown) {
            console.log(errorThrown);
        })

var formBody = [];
        for (var property in loginData) {
            var encodedKey = encodeURIComponent(property);
            var encodedValue = encodeURIComponent(loginData[property]);
            formBody.push(encodedKey + "=" + encodedValue);
        }
        formBody = formBody.join("&");