codification error

I'm using GnoMenu and I really enjoyed it.
I'm using a taskbar at the bottom of the desktop, "Windows Like", with Compiz enabled the menu works perfectly, but when i disable compiz, when i click the menu it appears "inverted" hiding the menu.

See the attachment (screenshot).

Studying the code I realized that the file
Globals.py has a "mistake."
The variable "orientation" is compared to a string, "bottom" or "top",
but in some cases, the variable "bottom" is written "botton.
Do not know if it was intentional or whether it was a mistake.
But to change the occurrences of "botton" to "bottom" had no
change in the bug described above.