JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<form id="myForm" type="POST">
    <input id="oknovo" type="button" value="OK & Novo" class="submit" />
    <input id="okfechar" type="button" value="OK & Fechar" class="submit" />
</form>

JavaScript

var submitForm = function(button) {
    var form = button.parent('form')
        botao = button.attr('id');
    
    if (botao === 'oknovo') {
        form.attr('action', 'novo').submit();
    } else if(botao === 'okfechar') {
        form.attr('action', 'fechar').submit();
    }
}

$("#myForm .submit").on('click', function (event) {
  var button = $(this);
  submitForm(button);
});

// to verify
$('#myForm').on('submit', function(event) {
    event.preventDefault();
    alert('Form has been submitted with action: "' + $(this).attr('action') + '"');
});