Dynamic image above work center menu

Hello,

I need to find a way how to dynamically change the small picture above the work center menu (see screenshot below)

I found this howto guide:

http://wiki.scn.sap.com/wiki/display/CRM/New+Skin+Management+Part+3+-+Example+about+how+to+change+the+image+above+WorkCentre+from+CRM7.0+Ehp1

Unfortunately this is only a static approach how to change the picture. I like to implement functionality (or use the standard function if available) to display different graphics here, depending on the user role profile.

Has anybody here already implemented such a function? Would be great if you could share your experience with me.

Thanks and best regards,

Markus