Well, lets start!
You may open your bar image again!
And make sure you got one, and only one layer!!

This is eazy to animate!!!
Ok:
1. duplicate the layer!
2. hold ctrl + shift and press O.
3. set the X value to what you whant, im setting it to 10... you could take more for a fast animation, and less for a slow...
4 press ok
5. REPEAT!!!

For those with a ryhtm inside:
write 10, and copy it!
then press:
Ctrl + Shift + D
Ctrl + Shift + O
Ctrl + V
Alt + F (or what ever it says)
Repeat
Do this 12 times (if you chose 10 as x value)
and then press filters>animation>playback and enjoy :-D

(If someone can make me a script, i would go WOOHOOO!!!
)finished image:

Have a nice day/night
and tell me if something was unclear or to complicated











thanks for the awesome tut! 

more work, but smoother