anchor.diff:  <select class="selectNeighborhoods">
     <option selected="selected" value="all"> All </option>
     <%= @neighborhoods.each do |neighborhood| %>
  -    <option value=<%= neighborhood %>><%= neighborhood.title %></option>
  +    <option value=<%= neighborhood.id %>><%= neighborhood.title %></option>
     <% end %>
   </select>
   
  
positive.code:     var selectedKind = $('.selectKind').val();
      var selectedNeighborhood = $('.selectNeighborhoods').val();
  
      function groupList(selKind, selNeighborhood)
  
      $('.selectKind').change(function(){
        selectKind = $(this).val();
        $('table').show()
        if (selectKind != 'all' && selectedNeighborhood != 'all') {
          $('tr').not('.' + selectedNeighborhood, '.' + selectKind).hide()
        }
        else if (selectKind == 'all') {
  
        }
      });
  
      $('.selNeighborhoods').change(function(){
        selectedNeighborhood = $(this).val();
        $('table').show()
        $('tr').not('.' + selectedNeighborhood, '.' + selectKind).hide()
      });
    });
  </script>
  
negative.code: 
    <tbody>
      <% @groups.each do |group| %>
        <tr class='<%= group.neighborhood.id %> <%= group.kind %>'>
          <td><%= group.id %></td>
          <td><%= group.neighborhood.title %></td>
          <td><%= group.name %></td>
  