title: Javascript / S3 multiple file upload
body: <p>I'm looking for a way to select and upload multiple files to Amazon S3, something in the vein of Uploadify, but with the following constraints : </p>
  
  <ol>
  <li>No flash or HTML 5 - but AJAX and iframe tricks are allowed.</li>
  <li>Multiple selection must happen in a single dialog.</li>
  <li>Files must be sent directly to Amazon (there is no intermediary server to handle them). </li>
  </ol>
  
  <p>Also, Amazon S3 does not allow uploading multiple files in a single request, so this means every file will have to be sent with a distinct request to a distinct URL, so I need to specify what those URLs will be.</p>
  
  <p>Are any components around that might do this, or any known techniques I could leverage to build my own? Thank you. </p>