# user_controller.rb
  def signup
    @user = User.new(params[:user])
    if request.post?
      if @user.save
        session[:user] = User.athenticate(@user.email, @user.password)
        flash[:notice] = "Signup successful."
        redirect_to :action => "index"
      else
        flash[:error] = "Failed signup."
      end
    end
  end

<fieldset>
	<%= error_messages_for "user" %>

	<legend>Signup</legend>
	<% form_for :user do |f| %>
		<%= f.label :login, "Screen Name:" %>
		<%= f.text_field :login %>

		<%= f.label :email, "Email:" %>
		<%= f.text_field :email %>

		<%= f.label :password, "Password:" %>
		<%= f.password_field :password %>

		<%= f.label :password_confirmation, "Confirm Password:" %>
		<%= f.password_field :password_confirmation %>
	<% end %>

	<label for="gender"> I am: </label>
	<%= radio_button :user, :gender, "Male"   %> Male
	<%= radio_button :user, :gender, "Female" %> Female

	<label for="birthday"> Birthday: </label>
	<%= date_select :user,
                        :birthday,
			:start_year => User::START_YEAR,
		        :end_year   => Time.now.year,
			:include_blank => true,
			:order		=> [:day, :month, :year] %>

	<%= submit_tag "Signup", :class => "submit" %>