function componerUrlAccesoInfoTransit(){
    var url = document.getElementById('url_infotransit').value;
    if(lat && lon){
        url = url + '&lat=' + lat + '&lon=' + lon + '&level=' + levelZoom;
    }
    var congestion = document.getElementById('infoTcongestion');
    var camara     = document.getElementById('infoTcamara');
    var radar      = document.getElementById('infoTradar');

    var layers = '';
    try{
        if(congestion.checked){
            layers = 'RE';
        }
        if(camara.checked){
            if(layers.length!=0){
                layers = layers + ',';
            }
            layers = layers + 'CA';
        }
        if(radar.checked){
            if(layers.length!=0){
                layers = layers + ',';
            }
            layers = layers + 'RA';
        }
        if(layers.length!=0){
            url = url + '&layers=' + layers;
        }
    }catch(e){
    alert(e);
        return false;
    }

    document.location = url;
    return false;
}
var lat;
var lon;
var levelZoom = 13;
function seleccionarCoordenadas(zona){
    switch(zona){
        case 'Espanya_NO':
            lat = 42.16340;
            lon = -6.62476;
            levelZoom = 7;
            break;
        case 'Espanya_NE':
            lat = 41.08763;
            lon = 0.30762;
            levelZoom = 7;
            break;
        case 'Espanya_CE':
            lat = 40.27953;
            lon = -3.81500;
            levelZoom = 9;
            break;
        case 'Espanya_SO':
            lat = 38.10863;
            lon = -6.93237;
            levelZoom = 7;
            break;
        case 'Espanya_SE':
            lat = 38.03944;
            lon = -2.79052;
            levelZoom = 7;
            break;
    }
    componerUrlAccesoInfoTransit();
}