title: How to display a "busy" indicator with jQuery?
body: <p>How do I display a spinning "busy" indicator at a specific point in a web page?</p>
  
  <p>I want to start/stop the indicator when an Ajax request commences/completes.</p>
  
  <p>Is it really just a matter of showing/hiding an animated gif, or is there a more elegant solution?</p>