Could also, if you are writing the script, add a field to the user's table that has the last-post timestamp in it and check that time-stamp before continuing with the post being processed. You would need to update that timestamp on every successful post,though.

If you aren't writing the script, going to a redirect page will only lag the Forum. Users won't like it.

*edit*

Or a javascript method???

http://www.javascriptkit.com/script/script...dblsubmit.shtml

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