jquery newsletter submit - loading message

i have a newsletter form i use on my site using ajax with jquery. i want to show to a user a wait message. what is the best option?

heres what i have so far:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>

<script type="text/javascript">

$(document).ready(function() {

  $('#submit').click(function(e) {

    $.ajax({

      type: "POST",

      url: '/save.php',

      data:  $('#form').serialize(),

      cache: false,

      success: function(result) {

        // my code when success

      }

    });

  });

});



</script>



<div id="newsletter">

  <form id="form">

  <label for="email">Your Email*:</label>

  <input name="email" value="" type="text" id="email" size="30" maxlength="255" />

  <span id="submit">Submit</span>

  </form>

</div>

thanks

Source: Tips4all