function initmap() {
map = new L.Map('map');
new L.Control.GeoSearch({ provider: new L.GeoSearch.Provider.OpenStreetMap() }).addTo(map);
var osmUrl='http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
var osmAttrib='Map data © OSM contributors | Marker data © HistorySigns.com';
var osm = new L.TileLayer(osmUrl,{minZoom:3,maxZoom:18,attribution:osmAttrib});
map.setView(hull,11);
map.addLayer(osm);
}