fatfaso's dashboard

Is it possible to have Fluid Gmail open during startup, but have it hidden so a new window doesn't open, that way badge notifications of how many new email are in your inbox is displayed in the dock?

In other words, I'd like to have Fluid Gmail serve as a replacement for Google's Gmail Notifier, that way I can have my notifications in the dock like Apple's Mail application. The Gmail Notifier open during startup and displays the number of unread emails and notifies you when new messages arrive.

Thanks for your help!