[Zope] ZRTChat: Logged in users indicator

I would like to put an image or different text at several places in the site when ever there is at least one person logged into the ZRTChat chatroom. i.e. a light on the front page to indicate that there is a chat session presently underway in the chatroom. Question: How can I accomplish the following algorithm, <If logged in users exist> display image or text a <else> display image or text b <fi> Basically I need to know how I can access a variable or other data type that will tell me whether there is anyone logged on when the page in question is requested. If no such variable exists, is there some other way of accomplishing this! Thanks Brendon -- Brendon Grunewald http://www.70south.com mailto:brendon@70south.com ---