<%= form_tag({:action => 'submit'}, :multipart => true) do %> Problem: <%= select 'submission', 'problem_id', [[(t 'main.specified_in_header'),'-1']] + @problems.collect {|p| [p.full_name, p.id]}, :selected => '-1' %> File: <%= file_field_tag 'file' %> <%= submit_tag 'Submit' %> <% end %>