= form_for(resource, :as => resource_name, :url => invitation_path(resource_name), :html => {:method => :put }) do |f|
  %p
    = f.label :username , t('username')
    = f.text_field :username, :title => t('registrations.new.enter_username')
  %p  
    = f.label :email , t('email')
    = f.text_field :email, :title => t('registrations.new.enter_email')
  %p
    = f.label :password , t('password')
    = f.password_field :password, :title => t('registrations.new.enter_password') 
  %p
    = f.label :password_confirmation , t('password_confirmation')
    = f.password_field :password_confirmation, :title => t('registrations.new.enter_password_again') 
    = f.hidden_field :invitation_token

  = f.submit t('registrations.new.sign_up')
  %br
  = render :partial => "devise/shared/links"