Redmine/app/views/projects/calendar.rhtml

<h2><%= "#{month_name(@month)} #{@year}" %></h2>

<table width="100%">
<tr><td align="left">
    <%= link_to_remote ('&#171; ' + (@month==1 ? "#{month_name(12)} #{@year-1}" : "#{month_name(@month-1)}")), 
                        {:update => "content", :url => { :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1), :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects] }},
                        {:href => url_for(:action => 'calendar', :year => (@month==1 ? @year-1 : @year), :month =>(@month==1 ? 12 : @month-1), :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects])}
                        %>
</td><td align="right">
    <%= link_to_remote ((@month==12 ? "#{month_name(1)} #{@year+1}" : "#{month_name(@month+1)}") + ' &#187;'), 
                        {:update => "content", :url => { :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1), :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects] }},
                        {:href => url_for(:action => 'calendar', :year => (@month==12 ? @year+1 : @year), :month =>(@month==12 ? 1 : @month+1), :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects])}
                        %>
</td></tr>
</table>

<%= render :partial => 'common/calendar', :locals => {:calendar => @calendar} %>

<%= image_tag 'arrow_from.png' %>&nbsp;&nbsp;<%= l(:text_tip_task_begin_day) %><br />
<%= image_tag 'arrow_to.png' %>&nbsp;&nbsp;<%= l(:text_tip_task_end_day) %><br />
<%= image_tag 'arrow_bw.png' %>&nbsp;&nbsp;<%= l(:text_tip_task_begin_end_day) %><br />

<% content_for :sidebar do %>
    <h3><%= l(:label_calendar) %></h3>
    
    <% form_tag({}, :method => :get) do %>
    <p><%= select_month(@month, :prefix => "month", :discard_type => true) %>
    <%= select_year(@year, :prefix => "year", :discard_type => true) %></p>
    
    <% @trackers.each do |tracker| %>
      <label><%= check_box_tag "tracker_ids[]", tracker.id, (@selected_tracker_ids.include? tracker.id.to_s) %> <%= tracker.name %></label><br />
    <% end %>
    <% if @project.active_children.any? %>
    <br /><label><%= check_box_tag 'with_subprojects', 1, @with_subprojects %> <%=l(:label_subproject_plural)%></label>
    <%= hidden_field_tag 'with_subprojects', 0 %>
    <% end %>
    <p><%= submit_tag l(:button_apply), :class => 'button-small', :name => nil %></p>
    <% end %>
<% end %>

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