Unable to add/remove row/columns in IE8

Clicking any of the add/remove buttons for rows/columns appears to be busted in IE8.
This is the new way quirks are applied. Does it look happy and joyous to you? It is a very simple implementation and it is different than what we currently have in that it does not involve a new class for each quirk—it simply transfers some functions from non–prototype objects into the prototypes of the editor and its initializer.