output icon image not full:(

var position = new google.maps.LatLng(place["latitude"], place["longitude"]);
    // define marker
    var marker = new google.maps.Marker({
        map: map,
        position: position,
        title: place["place_name"] + ", " + place["admin_name1"],
        label: place["place_name"] + ", " + place["admin_name1"],
        icon: { url: "http://maps.google.com/mapfiles/kml/paddle/purple-stars.png",
                scaledSize: new google.maps.Size(50,50),
                origin: new google.maps.Point(0, 30),
                //size: new google.maps.Size(20, 32),
                anchor: new google.maps.Point(0, 30)
                }
    });