foo.haml

%li{:class => (network == n && request.path != '/timeline' ? "active #{n.class.to_s.downcase}" : n.class.to_s.downcase)}
  - if n.is_a?(TwitterNetwork)
    -#= link_to "@#{n.name}", networks_twitter_url(n)
    - url = networks_twitter_url(n)
    -#= link_to "@#{n.name}", networks_twitter_url(n)
  - else
    -#= link_to n.name, networks_facebook_url(n)
    - url = networks_facebook_url(n)
  %a{:href => url}
    -#%label.network{:class => "#{n.class.to_s.downcase}", :for => "sn#{n.class.to_s}"}
      = n.name
    %img.avatar.yyy{:alt => n.name, :src => n.image_url, :title => "#{n.name} (#{n.type_label})" }
    -#= n.name