How to show a loading graphic while a file is getting uploaded?

Question

The file should be uploaded in the background via Ajax or Iframes. I should be able to detect via javascript when the upload has completed, so I can hide the loading graphic and redirect the user to a new URL. Using Jquery is fine.

Answer 1

Check out jQuery Uploadify

EDIT: There's also a similar question: how-to-upload-file-jquery - you could display the graphic after the upload button has been clicked and hide in the success/onerror function callback.