<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title></title>
</head>
<body>
    <form action="" id="formid">
            <div id="sonucyaz"></div>
            <label>Görev Tanıtımı:</label>
            <input name="gorev" type="text" class="form-control">
            <label>Görev Açıklaması:</label>
        </select>
        <input class="button submit" type="submit" value="Kaydet" />
    </form>
    <script type="text/javascript">
        $(function(){
            $(".submit").click(function(event) {
                event.preventDefault();

                if ( ! $(this).hasClass("xhr")) {
                    $.ajax({
                        type: "POST",
                        url: "ajax/gorevekle.php",
                        data: $("#formid").serialize(),
                        success: function(cevap) {
                            if (cevap) {
                                $("#sonucyaz").html(cevap);
                            } else {
                                $(".submit").removeClass("xhr");
                            }
                        }
                    });
                    $(this).addClass("xhr");
                }
            });
        });
    </script>
</body>
</html>