title: When is it appropriate to use synchronous ajax?
body: <p>I was just reading another question about jQuery's synchronous ajax call, and I got to wondering:</p>
  
  <blockquote>
    <p>What circumstances make a synchronous version of an ajax call beneficial/necessary?</p>
  </blockquote>
  
  <p>Ideally I'd like an example, and why synchronous is better than standard ajax.</p>