In your previous post, you show the HTML of the first page as containing the following:

ACTION="http:/cgi-bin/database-#result.html"

I suspect if you substitute this for the first parameter to your POST call above (making it into a complete URI, that is), you will have more success.

The action attribute of a form tag tells the user agent (browser) where to connect to send the form data. I'm not sure (at the moment) how to send a submit value without a name, so I'm dismissing that line of reasoning. :)