I would like to have a +/- button and a total count for each comment. The count would start at '0' (zero) and if it is voted up, the count would become 1 and if voted down the count would be -1.
If the countwould be negative the comment would be collapsed and not shown.
The thing is that I would like to create this so it happens instantly on the page when clicked with AJAX or similar. Does anyone know of any good tutorial where I could find info how to do this?
It would look something like this:

Thanks a million
/df