var map;
OpenLayers.IMAGE_RELOAD_ATTEMPTS = 5;
OpenLayers.DOTS_PER_INCH = 25.4 / 0.28;
var zoom = 5;
var lon = 216645.351;
var lat = 4142700.562;

function init()
  {

   // CONFIGURACIONES INICIALES
   var caja = new OpenLayers.Bounds(203660.391, 4139108.75,220539.062, 4171960.5);
   var proj4326 = new OpenLayers.Projection("EPSG:4326");
   var proj23030 = new OpenLayers.Projection("EPSG:23030");



   var controles = [new OpenLayers.Control.Navigation(),
                   new OpenLayers.Control.PanZoomBar(),
                   new OpenLayers.Control.LayerSwitcher({'ascending':false}),
                   new OpenLayers.Control.ScaleLine(),
                   new OpenLayers.Control.MousePosition(),
                   new OpenLayers.Control.OverviewMap(),
                   new OpenLayers.Control.KeyboardDefaults(),
                   new OpenLayers.Control.NavToolbar()];
   var opcionesMapa = {
                      controls: controles,
                      maxExtent: caja, 
                      maxResolution: 80,
                      projection: "EPSG:4326",
                      units: 'm'
                     };
  
   // SE CREA EL OBJETO MAPA 
   map = new OpenLayers.Map( 'map', opcionesMapa );
                       


   // SE CREAN LAS CAPAS A VISUALIZAR  
   var calles = new OpenLayers.Layer.WMS( "Callejero","http://62.174.90.9:8080/geoserver/wms",
                    {
                     srs: 'EPSG:4326',
                     layers: 'sanlucarlamayor:calles',
                     transparent: "true",
                     format: "image/png" 
                    });

  
   var parcelas = new OpenLayers.Layer.WMS( "Parcelario","http://62.174.90.9:8080/geoserver/wms",
                    {
                     srs: 'EPSG:4326',
                     layers: 'sanlucarlamayor:parcelas',
                     format: "image/png"                       
                    });

   map.addLayers([parcelas, calles]);
   map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
  }