Method setMapTypeOpt

public function setMapTypeOpt($mapType = 0)
{
    $output = '';
    switch ($mapType) {
        case 1:
            $type = 'SATELLITE';
            break;
        case 2:
            $type = 'HYBRID';
            break;
        case 3:
            $type = 'TERRAIN';
            break;
        default:
        case 0:
            $type = 'ROADMAP';
            break;
    }
    $output = 'mapTypeId: google.maps.MapTypeId.' . $type;
    return $output;
}