Place the following in your ERB view:

<% [:info, :error].each do |key| %>
  <% if flash[key] %>
  <div class="<%= key %>" id="flash">
    <%= flash[key] %>
  </div>
  <% end %>
<% end %>

or use the following if you prefer Haml:

- [:notice, :error, :success].each do |key|
  - unless flash[key].blank?
    %p{ :class => "flash #{key}" }= flash[key]

:javascript
  if($("@[data-name='#{@domain.name}']").length == 0) {
    $("table.domain-list tbody").prepend('#{escape_javascript(partial(:"domains/td"))}'); 
  }

This will generate HAML views with Rails 3, HAML >=3.0.18 (won't work with lower version), and the latest devise version:

$ rails generate devise:views -e haml

If you see the following error when running the command:

Required dependency ruby_parser not found!
    Run "gem install ruby_parser" to get it.
Required dependency hpricot not found!
    Run "gem install hpricot" to get it.

make sure you have the following dependencies in Gemfile:

group :development do
  gem 'hpricot'
  gem 'ruby_parser'
end

This search-and-replace snippet helps a bit:

:%s/<\(\w[^>]*\)>/%\1/gc