/a> contributors';
    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 12, attribution: osmAttrib});
    
    function onEachFeature(feature, layer) {
        //bind click
        layer.on({
            click: function(){
                // reset line weight
                geojson_layer.eachLayer(function (_layer) {  
                    _layer.setStyle({
                        weight: 1,
                    });
                });
                // bold the selected state
                layer.s