%= error_messages_for 'period' %> <% if @period.backlog %>
: <%= hidden_field 'period', 'backlog_id' %><%=detour_to h(@period.backlog.name), :controller => 'backlogs', :action => :edit, :id => @period.backlog%>
<% else %>
<%= select 'period', 'backlog_id', @backlogs.map{|backlog| [backlog.name, backlog.id]} %>
: <%= @period.backlog.periods.last ? @period.backlog.periods.last.position + 1 : 1 %>
<% end %>
<%= text_field 'period', 'start_on', :size => 10, :value => @period.start_on ? @period.start_on.strftime('%Y-%m-%d') : nil %>
<%= text_field 'period', 'end_on', :size => 10, :value => @period.end_on ? @period.end_on.strftime('%Y-%m-%d') : nil %>