onBlur on eEditorArea doesn't work in FF

I have the same problem described at http://sourceforge.net/forum/message.php?msg_id=2992900
which has no answer. I copied it here again, because the first one is deep in history of this forum.

I'm trying to customize the editor a little for our needs and I would like to add two events, one onfocus and one onblur to expand and collapse the toolbar when the editing and when not. What I have done is the add the following to the editing iframe line in the fckedit.html file:

onfocus="FCKToolbarSet.Expand();return false;" onblur="FCKToolbarSet.Collapse();return false;"

This works find in MSIE, but not in Gecko browsers (Mozilla, Firefox, etc...). Any ideas?