Excuse my bad english :-) I think the best way is to use a flash movie. This movie ask to another CGI script the current size of your temp file. The flash movie don t need refresh to dialog with the script, just asking every 4 seconds, so the uploading have nearly the same speed !! But if you want write a pourcent progress you must know the size of the file to upload before the uploading. I don't know if how to do this !