Rails - Feb 2006 - auto_complete_field Vs text_field_with_auto_complete

Hi,

I want to know which of the two methods, auto_complete_field and 
text_field_with_auto_complete best suits what I am trying to do.

I have a model class called search (which doen''t extend ActiveRecord) 
which holds two parameters, category_string and postcode_string.

I want my form to bind its values to these to values.  I also want the 
category input to be an auto complete field (after the first three chars 
have been input).

What is the difference between auto_complete_field and 
text_field_with_auto_complete?

Does text_field_with_auto_complete support :min_chars as I can''t get it
to work?

Can text_field_with_auto_complete bind to the search class?

Martin

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