JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.js"></script>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.css">
<form action="test.php" method="POST" id="form1" name="form1">
    <fieldset>
        <input type="text" name="field1" id="field1" />
        <input type="button" value="Button" name="btn01" id="btn01" />
        <input type="submit" value="Submit" id="submit_btn" />
    </fieldset>
</form>

JavaScript

$(document).ready(function () {

    $('#form1').submit(function (e) {
        e.preventDefault();
        /* $('#submit_btn').val('Processing …').button('refresh'); */
       $('#submit_btn').prev().text("Processing ...").delay( 1000 );
        $.ajax({
            type: "POST",
            dataType: "json",
            data: $('#form1').serialize(),
            url: $('#form1').attr('action'),
            complete: function (HttpRequest, textStatus) {
                $('#submit_btn').val('Submit').button('refresh');
                //                $('#submit_btn').prev().text('Create');
            }
        });
        return false;
    });
});