app/views/profile_members/affiliate.html.erb
<h2> <%= @member.name %> </h2>
<%= form_tag( {:action => 'give_role'}, {:method => :post}) do %>
<%= select_tag 'role', options_for_select(@roles.map{|r|[r.name,r.id]}) %>
<%= hidden_field_tag 'person', current_user.person.id %>
<%= button_bar do %>
<%= submit_button('affiliate', _('Affiliate'), :cancel => {:action => 'index'}) %>
<% end %>
<% end %>