After conducting a brief test, I have found further evidence of GeoCities' shortcomings in that it does not support PHP. I also doubt it supports CGI/Perl scripting of any sort, at least if you do it yourself. So far about all it does seem to support is HTML and JavaScript. I'm very disappointed by it all. I'd love to learn some PHP, and get back to some CGI/Perl scripting, but sadly, using GeoCities is like a one-way street that ends in a cul-de-sac.