You must know how to write and understand 100% jquery code.
Open below example link and look at bottom menu with fisheye. Scroll down first, refresh page then you will see that the bottom menu doesn't work right when you try overmouse on this menu.
Example: [url removed, login to view]
1. You will have to modify [url removed, login to view] to fix scroll problem.
Source: [url removed, login to view]