When I upload a video my server needs a little bit to convert a video in an other format, in this time the video url is set to .avi or another filetyp, now can I do it that jw player prints out a "video is available soon" message?

When I upload a video my server needs a little bit to convert a video in an other format, in this time the video url is set to .avi or another filetyp, now can I do it that jw player prints out a "video is available soon" message?
There is no way to output a message like this, unless you modify the source. (or write your own plugin)