[SOLVED] Rotating inspirational quotes to the right of the site title.

I would like to place a periodically rotated (replaced, automatically changed) slogans at the empty place to the right of site name. There is a plugin "rotated posts" which creates a widget for the side bar. It would be nice to be able to place a widget to the header place.
For example, see my site
http://humancolony.org/
- there is an empty space between To the right of "Human colony" .
I wish to put a slogan (an inspirational quote) there.