anchor.diff:                          })
                           .on('dblclick', function(d){
                               d.properties.layer = $(this);
  +                            d.properties.tipo_region = 'estado';
                               cargaRegion(d.properties);
                           })
                           .each(function(d){
  +                            console.log(d3.geo.bounds(d));
                               d.properties.layer = $(this);
  -                            completaSelectEstado(d.properties);
  +                            d.properties.tipo_region = 'estado';
  +                            completaSelect(d.properties);
                           });
   
                   map.on('zoomend', reinicia);
  
positive.code:             d3.json('/topojson/estado.json', function (error, collection) {
                  var bounds = d3.geo.bounds(topojson.feature(collection, collection.objects['collection']));
                  var path = d3.geo.path().projection(projectPoint);
                  var feature = g.selectAll('.region')
                          .data(topojson.feature(collection, collection.objects['collection']).features)
                          .enter()
  
negative.code:         };
  
          // Rellena las opciones de region-estado
          var completaSelect = function(prop)
          {
              layer_obj = {};
              layer_obj[prop.region_id] = prop.layer;
              $('#region_estado').append('<option value="' + prop.region_id +'" centroide="[' + prop.centroide + ']">' + prop.nombre_region + '</option>');
          };
  