This patch started as an adaptation of the fix described at http://stack...

This patch started as an adaptation of the fix described at http://stackoverflow.com/questions/5738173/

Based on a suggestion by Patrick on the grappelli Google group, it has been further modified so that it should work with any tinyMCE mode setting, not just "textfields". 

See also https://groups.google.com/forum/#!topic/django-grappelli/hU_e2qmN_uc