Re: It's sorta working
That would be reddit class, user clicks a vote button, moments later the vote count adjusts to reflect it, and the voting button they clicked is marked as disabled (CSS style is changed), It's pretty easy to find examples of this on the web you can deconstruct.
While I'm here again (purely by chance), being alerted that someone has replied to you would also be reddit class.
* or whatever you're using.
** valid session check, target comment exists check, voting enabled check, has user already voted check, if ok change vote in db, if not return false or prompt user to login etc.
[EDIT] Nice job on the edit button, time remaining is a nice touch.
[EDIT2} Just noticed time remaining decrements in place, and doesn't reset with every edit, very nice, needs a cancel button though.