Do 17 Flettner tabs?

[pstrany]

Hi;

in looking at pictures of the Do 17, I've noticed that the elevator tabs seem to always be opposite the movement of the elevator. This would imply to me that these were Flettner-style tabs.So, my question is, did the Do 17 have a "moving" tail similar to Messerschmitt products (109, 110, 262) where the angle of the entire tail was changed to affect trim? Were these tabs indeed of the Flettner variety, or am I just noticing something incredibly coincidental? And if they were Flettner tabs, were any other control surfaces also so equipped?

Thanks!

Paul