Function "MODE" applied to characters.

Sorry my English!

What I need is to calculate the mode, lets say in column A2:A8, where I have in each cell diferent letters. exemple:

A2=F
A3=D
A4=H
A5=J
A6=F
A7=F
A8=F

So, the letter that most repeats is "F". Is it possibile to write a code, that gives me the mode from A2 to A8?
I Work with excel 2007.
Thank you!