in reply to A delay effect...
The fact that you want to pause in a CGI process strikes me as odd since CGI data is usually sent in a complete stream. The buffer flushing solution provided above seems like the most plausible one, altho your request is REALLY weird. Buffer flushing with CGIs is usually included when larger files are being generated.
Another, non-sleep method would be to put a meta tag with a refresh that redirects to a congrats page.
Altho there is more than one way to do it, using sleep isn't probably one of those ways :)
Greetz
Beatnik
... Quidquid perl dictum sit, altum viditur.