//style
      var estilo_ruas = new OpenLayers.StyleMap({
                                                "default": new OpenLayers.Style({
                                                    strokeColor: "#ff0000",
                                                    strokeOpacity: .7,
                                                    strokeWidth: 2,
                                                    fillColor: "#ff0000",
                                                    fillOpacity: 0,
                                                    cursor: "pointer"
                                                }),
                                                "temporary": new OpenLayers.Style({
                                                    strokeColor: "#ffff33",
                                                    strokeOpacity: .9,
                                                    strokeWidth: 3,
                                                    fillColor: "#ffff33",
                                                    fillOpacity: .3,
                                                    cursor: "pointer"
                                                }),
                                                "select": new OpenLayers.Style({
                                                    strokeColor: "#0033ff",
                                                    strokeOpacity: .7,
                                                    strokeWidth: 3,
                                                    fillColor: "#0033ff",
                                                    fillOpacity: 0,
                                                    graphicZIndex: 2,
                                                    cursor: "pointer"
                                                })
                                            });


      //Create layer
     var ruas = new OpenLayers.Layer.Vector("Ruas", {
                                                        strategies  : [new OpenLayers.Strategy.BBOX()],
                                                        styleMap: estilo_ruas,
                                                        isBaseLayer: false,
                                                        visibility: true,
                                                        protocol    : new OpenLayers.Protocol.WFS({
                                                            version         : "1.1.0",
                                                            srsName         : "EPSG:900913",
                                                            url             : "http://my_server.pt/cgi-bin/mapserv?map=../www/mapserver/file_map.pt.map",
                                                            featureType     : "ruas",
                                                            featureNS       : "nameserver.pt",
                                                            geometryName    : "the_geom",
                                                            schema          : "http://schemas.opengis.net/wfs/1.1.0/wfs.xsd"
                                                        })
                                                    }

                                            );