diff -r 6c2ef083d89f -r fda73ac53450 src/cm/media/js/site/f_text_view_frame.js
--- a/src/cm/media/js/site/f_text_view_frame.js	Mon Mar 10 13:04:40 2014 +0100
+++ b/src/cm/media/js/site/f_text_view_frame.js	Mon Mar 10 13:24:19 2014 +0100
@@ -402,9 +402,9 @@
     var wish = $('#c_textpref_style').val() ;
     for (var key in styles) {
       if (key == wish)
-        frames['text_view_comments'].CY.get("#textcontainer").addClass(key) ;
+        frames['text_view_comments'].CY.one("#textcontainer").addClass(key) ;
       else 
-        frames['text_view_comments'].CY.get("#textcontainer").removeClass(key) ;
+        frames['text_view_comments'].CY.one("#textcontainer").removeClass(key) ;
     }
   };