Wikimedia Bugzilla is closed!

If a user clicks in the reply button of a comment, it is shown the image ajax-loader.gif. This is ok.

The problem is: sometimes nothing happens (probably because of slow internet connection) and then a user clicks the button again. In this case, the image is added two times. If the user clicks again and again, it will be added new copies of that image for each click. This should be avoided.

Notice that if more than one image was shown, when the script finishes loading the box for new comments, only the first image will be removed, causing the impression that there still have something to wait...