gistfile1.haml

# views/layouts/application.html.haml
!!!
%html
  %head
  %body
    %nav#menu
      Some content
    #wrapper
      %section#content
        = yield
      %footer#footer
        Content
    #login
      #x-button X
      = render :partial => "users/new"

# views/users/_new.html.haml
%h1 Sign Up
= form_for @user do |f|
  - if @user.errors.any?
    .error_messages
      %h2 Form is invalid
      %ul
        - for message in @user.errors.full_messages
          %li= message
  %p
    = f.label :email
    %br
    = f.text_field :email
  %p
    = f.label :password
    %br
    = f.password_field :password
  %p
    = f.label :password_confirmation
    %br
    = f.password_field :password_confirmation
  %p.button= f.submit

# controllers/users_controller.rb
class UsersController < ApplicationController
  def new
    @user = User.new
  end

  def create
    @user = User.new(params[:user])
    if @user.save
      redirect_to pages_start_url, :notice => "Registered"
    else
      render "new"
    end
  end
end

# controllers/pages_controller.rb
class PagesController < ApplicationController
  def start
  end
  # other similar actions
end