$body = $("body");

function lockform() {
        $("#theform :input").prop("disabled", true);
        $body.addClass("loading");
}

function unlockform() {
        $("#theform :input").prop("disabled", false);
        $body.removeClass("loading");
}

$('#theform').submit(function(event){
    event.preventDefault();
    if(this.checkValidity()) { 
            $.ajax({
                    type: "POST",
                    url: "/addjob",
                    data: $('#theform').serialize(),
                    success: function(msg){
                            lockform();
                            interval = setInterval(checkServerForFile,3000,msg);
                            function checkServerForFile(jobid) {
                                    $.ajax({
                                            type: "GET",
                                            cache: false,
                                            url: "/getjob/" + jobid,
                                            statusCode: {
                                                    404: function() {
                                                            clearInterval(interval);
                                                            unlockform();
                                                    },
                                                    200: function() {
                                                            clearInterval(interval);
                                                            unlockform();
                                                            window.location.href = "/getjob/" + jobid
                                                    },
                                                    500: function() {
                                                            clearInterval(interval);
                                                            window.alert("Failed to process request.")
                                                            unlockform();
                                                    }
                                            }
                                    });
                                }

                        }
                });}
});