function initialize() {
    var latlng = new google.maps.LatLng(39.254,9.062);
    var myOptions = {
      zoom:15,
      center: latlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(document.getElementById("mappa"),
        myOptions);
       
   
  
}