title: How to do nice and simple file uploading in javascript?
body: <p>All I want is: </p>
  
  <ul>
  <li>select a file</li>
  <li>small progress bar (unless it is not simple)</li>
  <li>fail/success confirmation on client side</li>
  <li>trigger action on server side.</li>
  <li>all that without page reloading</li>
  </ul>
  
  <p>Except that, the simpler the better.</p>
  
  <p>Snippet would be most welcome.</p>