Redmine/app/views/workflows/_form.html.erb

<table class="list transitions-<%= name %>">
<thead>
  <tr>
    <th align="left">
      <%= link_to_function(image_tag('toggle_check.png'), "toggleCheckboxesBySelector('table.transitions-#{name} input')",
                                                          :title => "#{l(:button_check_all)}/#{l(:button_uncheck_all)}") %>
      <%=l(:label_current_status)%>
    </th>
    <th align="center" colspan="<%= @statuses.length %>"><%=l(:label_new_statuses_allowed)%></th>
  </tr>
  <tr>
    <td></td>
    <% for new_status in @statuses %>
    <td width="<%= 75 / @statuses.size %>%" align="center">
      <%= link_to_function(image_tag('toggle_check.png'), "toggleCheckboxesBySelector('table.transitions-#{name} input.new-status-#{new_status.id}')",
                                                      :title => "#{l(:button_check_all)}/#{l(:button_uncheck_all)}") %>
      <%=h new_status.name %>
    </td>
    <% end %>
  </tr>
</thead>
<tbody>
  <% for old_status in @statuses %>
  <tr class="<%= cycle("odd", "even") %>">
    <td>
      <%= link_to_function(image_tag('toggle_check.png'), "toggleCheckboxesBySelector('table.transitions-#{name} input.old-status-#{old_status.id}')",
                                                          :title => "#{l(:button_check_all)}/#{l(:button_uncheck_all)}") %>

      <%=h old_status.name %>
    </td>
    <% for new_status in @statuses -%>
    <td align="center">
      <%= check_box_tag "issue_status[#{ old_status.id }][#{new_status.id}][]", name, workflows.detect {|w| w.old_status_id == old_status.id && w.new_status_id == new_status.id},
            :class => "old-status-#{old_status.id} new-status-#{new_status.id}" %>
    </td>
    <% end -%>
  </tr>
  <% end %>
</tbody>
</table>