A window not in the taskbar

[Mavrisa]

Is there a way that I can get an AIR app to appear on screen (Always on top), but does not take up a spot on the taskbar? For example, Google desktop takes up part of your screen, but doesn't take up a tab at the bottom.
I'm using custom chrome as well, so how do I find out how much space the taskbar takes up dynamically? This doesn't necessarily have to work on Mac since I'm probably going to be the only one to use it.

Thanks.

[Chris_Seahorn]

http://livedocs.adobe.com/flex/3/htm...skbar%5F1.html

Section:

Creating windows without taskbar buttons or icons