Gesior is this possible to add to Znote? :3
The code is messy xD
https://github.com/gesior/Gesior2012/blob/TFS-1.0/pages/whoisonline.php#L27
Then look in config.php of what the variables should be.
All it really is an image you take from either his website or your own files (depending on how you set it up).