How to make a counter hidden (and monitor it from another page)?
Use the parameter sh=F. If you use the option sh=F, the counter program sends a 1 pixel by 1 pixel transparent GIF image to the browser, which gives an illusion of hidden counter. Now if you want to monitor the hits from another page, use the option dbkey and specify the key for the web page you’re going to monitor. You can find out the key for the web page from the database Authdb with utilities count_admin.pl CGI or editdb program or dumpdb program. For some reason, if you’re using datafile with the new version, you can use incr=F and df=datafile to monitor that counter of the page.