i hope some answers your problem too..i've got the same issue....and i keep getting a multiparamete assignment error...dave
The :prefix parameter sets the name. From the documentation:
:prefix - overwrites the default prefix of "date" used for the select names. So specifying "birthday" would give birthday[month] instead of date[month] if passed to the [select_month](http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#M000592) method.
-Bill dave wrote: