It is go some Karosa in city? I see on the photo bus BT 6561 AT. It is still go? Thank you
No. As far as I know, they were stopped at the end of the last decade (not sure about the exact year) - 10 years ago +/-. If you want, take a look at a couple of videos, taken by me back in 2009 - on 29. December - with my old Sony Ericsson k530i. I apologize for the bad quality!

Just uploaded a video from 27. December 2009 (taken by me as well) of another Karosa.