anchor.diff:    </tr>
   
     <tr class="line<%= cycle("0", "1") -%>">
  +<script>
  +$(function(){
  +  if (typeof $('#day_start_at').setCalendar == "function") {
  +    $('#day_start_at').setCalendar({src:'/assets/calendar.png'});
  +    $('#day_end_at').setCalendar({src:'/assets/calendar.png'});
  +  }
  +});
  +</script>
   <%= form_tag(:action => :get_day_report)  do -%>
       <td><%= t('statistic_report.day_report') -%></td>
       <td><%= text_field_tag :day_start_at, @d_start_at if @d_start_at %> - <%= text_field_tag :day_end_at, @d_end_at if @d_end_at %>  <%= t('statistic_report.day') -%></td>
  
positive.code:   </tr>
  
    <tr class="line<%= cycle("0", "1") -%>">
  <%= form_tag(:action => :get_age_report)  do -%>
      <td><%= t('statistic_report.age_report') -%></td>
      <td><%= text_field_tag :age_start_at, @a_start_at if @a_start_at %> - <%= text_field_tag :age_end_at, @a_end_at if @a_end_at %>  <%= t('statistic_report.day') -%></td>
  
negative.code:   </tr>
  
    <tr class="line<%= cycle("0", "1") -%>">
  <script>
  $(function(){
    if (typeof $('#timezone_start_at').setCalendar == "function") {
      $('#timezone_start_at').setCalendar({src:'/assets/calendar.png'});
      $('#timezone_end_at').setCalendar({src:'/assets/calendar.png'});
    }
  });
  </script>
  <%= form_tag(:action => :get_timezone_report)  do -%>
      <td><%= t('statistic_report.timezone_report') -%></td>
      <td><%= text_field_tag :timezone_start_at, @t_start_at if @t_start_at %> - <%= text_field_tag :timezone_end_at, @t_end_at if @t_end_at %>  <%= t('statistic_report.day') -%></td>
  