bower install digitalhammer/ajax-forms

<script src="bower_components/ajax-forms/AjaxForm.js"></script>

<form action="form-handler.php" id="ajax-form">
  <div class="form-group">
    <input type="text" name="email" value="" class="form-control"/>
  </div>
  
  <button type="submit">Send</button>
</form>

var ajaxForm = new AjaxForm('#ajax-form', options);