My approach does seem to solve the problem here: https://groups.google.com/forum/?fromgroups=#!searchin/web2py/form$20append/web2py/1bUiboNcsYw/QwJbcqwUPIIJ
Does the fact that I get an error have anything to do with the web2py version I am using: 2.2.1 Kind regards, Annet --

