[Typo3] alternating login images - how to set $GLOBALS['TBE_STYLES']['loginBoxImage_rotationFolder']

[Rainer (Rene) Suthoelder]

> or use http://typo3.org/extensions/repository/search/fdfx_basicskin/
> to add easily your own logo

hi peter!
i wanted to achieve this with the provided basic functionality (already have 
so many extensions loaded =:o)

thanks,

rainer