создаем раскрывающиеся списки проектов в redmine

правим  файл
vim app/views/projects/index.html.erb

вставляем туда следующий javascript

<% content_for :header_tags do %>
    <%= auto_discovery_link_tag(:atom, {:action => 'index', :format => 'atom', :key => User.current.rss_key}) %>
<% end %>


    <%= link_to(l(:label_project_new), {:controller => 'projects', :action => 'new'}, :class => 'icon icon-add') + ' |' if User.current.allowed_to?(:add_project, nil, :global => true) %>
    <%= link_to(l(:label_issue_view_all), issues_path) + ' |' if User.current.allowed_to?(:view_issues, nil, :global => true) %>
    <%= link_to(l(:label_overall_spent_time), time_entries_path) + ' |' if User.current.allowed_to?(:view_time_entries, nil, :global => true) %>
    <%= link_to l(:label_overall_activity),
                { :controller => 'activities', :action => 'index',
                  :id => nil } %>


<%= l(:label_project_plural) %>


<%= render_project_hierarchy(@projects) %>


<% if User.current.logged? %>

<%= l(:label_my_projects) %>

<% end %>

<% other_formats_links do |f| %>
  <%= f.link_to 'Atom', :url => {:key => User.current.rss_key} %>
<% end %>

<% content_for :sidebar do %>
  <%= form_tag({}, :method => :get) do %>
    
<%= l(:label_project_plural) %>
    <%= check_box_tag 'closed', 1, params[:closed] %> <%= l(:label_show_closed_projects) %>
    
<%= submit_tag l(:button_apply), :class => 'button-small', :name => nil %>
  <% end %>
<% end %>

<% html_title(l(:label_project_plural)) -%>

Определение главной страницы битрикс

 
<?if($APPLICATION->GetCurPage()==SITE_DIR):?>
главная
<?else:?>
не главная
<?endif?>