var touchdownIcon =  new L.Icon({iconUrl: 'ico/target.png',iconSize: [20, 20]});
var burstIcon =  new L.Icon({iconUrl: 'ico/bang.png',iconSize: [30, 30]});

var sonde92Icon =  new L.Icon({iconUrl: 'ico/rs92.png',iconSize: [30, 30]});
var flightSondeIcon =  new L.Icon({iconUrl: 'ico/flight_sonde.png',iconSize: [50, 100]});
var balonIcon =  new L.Icon({iconUrl: 'ico/balon.png',iconSize: [30, 30]});
var balon2Icon =  new L.Icon({iconUrl: 'ico/balon2.png',iconSize: [30, 30]});

var balon3Icon =  new L.Icon(
                                {
                                 iconUrl: 'ico/balon3.png'
                                ,iconSize: [30, 30]
                                ,shadowUrl:'ico/balon_cien2.png'
                                ,shadowSize: [30,30]
                                ,iconAnchor:   [15, 30]
                                ,shadowAnchor: [0, 30]
                                ,popupAnchor:  [0, 0]
                                }
                            );

var balon3HighIcon =  new L.Icon(
                                {
                                 iconUrl: 'ico/balon3.png'
                                ,iconSize: [30, 30]
                                ,shadowUrl:'ico/balon_cien2.png'
                                ,shadowSize: [30,30]
                                ,iconAnchor:   [15, 150]
                                ,shadowAnchor: [0, 30]
                                ,popupAnchor:  [0, 0]
                                }
                            );

var balon3MidIcon =  new L.Icon(
                                {
                                 iconUrl: 'ico/balon3.png'
                                ,iconSize: [30, 30]
                                ,shadowUrl:'ico/balon_cien.png'
                                ,shadowSize: [30,30]
                                ,iconAnchor:   [15, 30]
                                ,shadowAnchor: [0, 30]
                                ,popupAnchor:  [0, 0]
                                }
                            );

var balon3LowIcon =  new L.Icon(
                                {
                                 iconUrl: 'ico/balon3.png'
                                ,iconSize: [30, 30]
                                ,shadowUrl:'ico/balon_cien.png'
                                ,shadowSize: [30,30]
                                ,iconAnchor:   [15, 30]
                                ,shadowAnchor: [0, 30]
                                ,popupAnchor:  [0, 0]
                                }
                            );

