title: TypeError: google.maps.MarkerLabel is not a constructor
body: <p>I want to customize the color of the label of my marker with Google Maps V3, and searching on the documentation I've found that there's a class named google.maps.MarkerLabel. </p>
  
  <p>Searching on the web I've found some explaes of usage and here's what I've tried to do:</p>
  
  <pre><code>        var marker = new google.maps.Marker ({
              position: new google.maps.LatLng(data.lat, data.lon),
              map: map,
              id: data.id,
              type: data.type,
              type_description: data.type_description,
              name: data.name,
              via: data.via,      
              civico: data.civico,
              comune: data.comune,
              cap: data.cap,
              giorno: data.giorno,
              orario: data.orario,
              description: data.description,
              note: data.note,
              label: new google.maps.MarkerLabel({
                  text: data.id,
                  color: "white"
              }),
              icon: '&lt;cms:link&gt;../resources/images/' + data.markerIcon + '&lt;/cms:link&gt;'                            
          });     
  </code></pre>
  
  <p>The message tells me MarkerLabel is not a costructor. Ok, but where should I call it to make by object id (which is of course a number) coloured white?</p>
  
  <p>Thanks!</p>