Submit any form with AJAX and jQuery

ajax-form.js

$('#thing form').submit(function(e) {
  var $this = $(this);
  e.preventDefault();

  $.ajax({
    type: this.method,
    dataType: "JSON",
    url: this.action,
    data: $this.serialize(),
    success: function() {
      // Display success message or something
    }
  });
});