anchor.diff:        data = row.split(",");
         add_marker(data[1], data[0]);
       });
  +   
  +    rebound_map();
  +  }
  +
  +  // Zoon and fit the map to the active markers.
  +  function rebound_map(){
  +    var map_bounds = new google.maps.LatLngBounds();
  +    $.each(marker_data, function(i, marker){
  +      if(marker.active){
  +        map_bounds.extend(marker.marker.getPosition());
  +      }
  +    });
  +    map.fitBounds(map_bounds);
     }
   <% end %>
   <%= form_for(@route, :html => { :class => 'cmxform'}) do |f| %>
  
positive.code:     
      marker_data[marker.get('data_id')].active = false;
    }
   
    function import_data(){
      $.each(marker_data, function(index, marker){
        remove_marker(marker.marker);
  
negative.code:   var polyline; //The line
    var marker_data = new Array();
  
    // Given a latitude and a longitude, add a marker to the map
    // and the underlying HTML data structure.
    function add_marker(latitude, longitude){
      var next_pos = next_position();
      var index = next_index();
  