This example shows a powerful effect that can be used when a progress takes a long time. The screen "blanks" out and diplays a "Please Wait" message. This effect is also useful for Saving information so that users cannot keep resubmitting a form.
To run this, simply click the "Request" button, the request will go off to the server and you will see the Please Wait message. In this example, nothing is returned back to the user, but in a real application, of course data can be returned.