Thanks Ken, but I guess I wasn't clear what we are trying to do.  We give the editor's character count remaining and then show the number in red when its has passed the max length.  No need for a detachEvent.  However the counter isn't correct when an Undo or Redo action happens in Firefox and Chrome.

So the real problem is our counter doesn't change when the user clicks the Undo or the Redo button....in Firefox and Chrome.  We need some event to look for that picks up a Cute Editor 'button up' (like keyup) that works in Firefox and Chrome...