function initialize() {
  var myLatlng = new google.maps.LatLng(44.992484,7.518768);
  var myOptions = {
    zoom: 10,
    center: myLatlng,
    mapTypeId: google.maps.MapTypeId.ROADMAP
  }
  var map = new google.maps.Map(document.getElementById("googlemap"), myOptions);
  
  var image = 'http://www.riellosrl.it/img/marker.png';
  var location = new google.maps.LatLng(44.90418,7.431382);
  var marker = new google.maps.Marker({
      position: location, 
      map: map,
      icon: image,
      title: 'Riello s.r.l.'
  });
  

var contentString =
    '<div>'+
    '<img src="http://www.riellosrl.it/img/logo-riello.png" alt="" style="width:280px;" />'+
    '</div>';

	
  var infowindow = new google.maps.InfoWindow({
      content: contentString,
      maxWidth: 300
  });

  google.maps.event.addListener(marker, 'click', function() {
    infowindow.open(map,marker);
  });
}