Smopp_v2/objectdateget.js

$(document).ready(function() {
    $("#dateget").click(function() {

        var machine = $("#machine").val();
        var dateget = $("#dateget").val();
        var calendar = $("#calendar").val();

        $.ajax({

            type: 'POST',
            url: 'objectevent.php',

            data: {calendar:calendar, machine:machine, dateget:dateget},
            success: function (msg) {
                $('#message1').html(msg);
            }
        });
    });
});