- for workgroup in Workgroup.all
  %h4= link_to workgroup.name, "#", 'data-toggle_this' => "#workgroup_#{workgroup.id}"
  %ul{:style => "display:none"}[workgroup]
    - for user in workgroup.users.order("nick")
      %li= "#{user.nick} (#{user.ordergroup.try(:name)})"