ruby on rails - Can I include blank field in select_tag?

Question

Is it possible to add an option like :include_blank => 'Please Select' in a method select_tag like it is possible with the select method? It seems not to work. Is there any substitute for this for select_tag method?

Answer 1

In Rails 3 there is a :prompt option for select_tag:

select_tag "things", many_thing_as_options, :prompt => "Please select"