Once upon a time (oh my gosh!) when there was only HTML and CGI was barely in its infacny server push animation was used for all sorts of things. Progress indicators, slide shows, even simple animated drawings, were all done with server push.

Lincoln Stein's CGI.pm has some server push capability and his newer CGI::Push module implements a cleaner interface. This appears to be slated for inclusion in the core release of Perl - I think it is in 5.8.1-RC4.

jdtoronto