fixed a back month bug when you tried to go back past jan.
fixed a back month bug when you tried to go back past jan.

git-svn-id: fa591ede5be557e029a523ff81108e7edbe1e44a@118 aa19dc56-961c-0410-9a23-801c11b689e8

schlu/simpltryjs,schlu/simpltryjs