Git commits in Moodle 2.0.x by Rod Norfor

commit 1e668c4d8557c0d8c3268c3aa5453e0404e30e42
Author: Rod Norfor <R.T.C.Norfor@open.ac.uk>
Date:   Wed, 09 Mar 2011 02:04:24 +0800
Tag:    v2.0.3

MDL-13983 show frozen radio buttons in a more accessible way.