IMHO the Javascript approach is the least interesting route. What if: In my eye, using a unique (session) id per post, be it submitted or not, is the only way. The server can then choose to either reject posts with the same id, or use it to update an earlier submission (by the same user!)

You can combine that with a quick response page, which might even automatically reload after a short while. See merlyn's WebTechniques column "Search in progress" page for some ideas.

In reply to Re^3: Forcing output to a browser when perl is busy by bart
in thread Forcing output to a browser when perl is busy by Anonymous Monk

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