title: Get thumbnail from input type="file"
body: <p>I'm building an photo <em>uploader</em>. When user choose a photo from <code>&lt;input type="file"&gt;</code></p>
  
  <p>I use <em>jquery</em> to submit the selected file from user to my server, the server save that image to disk and make a thumbnail. </p>
  
  <p>The server return the URL of the thumbnail to client.</p>
  
  <p>Then <em>jquery</em> display the image to user.  That is client/server.</p>
  
  <p>Now, can I show the thumbnail of selected file from user without post it to Server ? </p>
  
  <p>( It's like Facebook photo <em>uploader</em>, we needn't click Preview to view thumbnail of selected Photo. Facebook do it for us )</p>