Vote reset

Hello! Great module!

In the case where we have both up and down votes, I wanted to be able to reset my vote as though I had done nothing. As it stands, if I vote up, a vote down subsequently will bring the absolute karma down by 2...eg if the score of something is 8, and i vote up to 9, if I hit down, i go to 7. I just want each arrow hit to give differences of one, but no more than that.

Thanks a lot, and please let me know if my language is ambiguous.

Best,

-aerodog