anchor.diff:    <% end%>
     </tbody>
   </table>
  -    <div class="center">
  -      <button class="btn btn-large" style="width: 50%; font-weight: bold">Update</button>
  -    </div>
  +<div class="center">
  +  <button class="btn btn-large" style="width: 50%; font-weight: bold">Update</button>
  +</div>
   <% end %>
  
positive.code:   </tr>
    </thead>
    <tbody>
    <% @missions.each do |mission| %>
        <tr>
          <td>
            <input name="missions[<%= mission.id %>][title]" class="input-medium" type="text"  value="<%= mission.title %>" required>
  
negative.code:           <select id="select-mission" name="missions[<%= mission.id %>][dependent_id]" class="input-medium">
              <option value="0" >No Dependency</option>
              <%= (@missions - [mission]).each do |asm| %>
                  <option value="<%= asm.id %>" <%= 'selected' if asm == mission.dependent %>><%= asm.title %></option>
              <% end %>
            </select>
          </td>
  