anchor.diff:  <script type="text/javascript">
  -        var lon = 5;
  -        var lat = 40;
  -        var zoom = 5;
  -        var map, layerBasic, layerVector, browseBoxControl;
  +  var MIN_ZOOM_LEVEL = 12;
  +  var lon = 5;
  +  var lat = 40;
  +  var zoom = 5;
  +  var map, layerBasic, layerVector, browseBoxControl;
   
     function setupView(){
         map.zoomToExtent(layerVector.getDataExtent(), false);
  
positive.code: 
              layerVector.events.on({
                'loadend': function(obj) {
                  $("#visstatus").html($("#changeset_list_template").render(obj.object));
                  var bbox = map.getExtent().transform('EPSG:900913', 'EPSG:4326').toBBOX(8, false);
                  $("#rss_link").attr('href', '/map.rss?bbox=' + bbox);
                      }
                }
  
              );
        map.events.register("zoomend", this, zoomEvent);
  
negative.code:                  projection: new OpenLayers.Projection("EPSG:4326"),
                   displayProjection: new OpenLayers.Projection("EPSG:900913"),
                   styleMap: new OpenLayers.StyleMap({
                     "default": {'strokeWidth': 8, 'strokeColor': "yellow", 'strokeOpacity': 0.66},
                     "highlight": {'strokeWidth': 8, 'strokeColor': "blue"}
                   }),
                   visibility: false
              });
  