Google map API - více bodů

<?php
$view_coord = '14.75716,49.42216';
$view_type = '220';
$view_code = '8569';
$view_name = 'Cíl';
?>

<div id="map"></div>

<script src="https://maps.googleapis.com/maps/api/js"></script>
<script>
    var myCenter=new google.maps.LatLng(<?echo $view_coord;?>);
    function initialize()    {
        var mapProp = {
        center:myCenter,
        zoom:12,
        mapTypeId:google.maps.MapTypeId.ROADMAP
        };
        
        var map=new google.maps.Map(document.getElementById("map"),mapProp);
        
        var marker=new google.maps.Marker({
        position:myCenter,
        icon:'../mymodules/image/markers/<?echo $view_type;?>.png',
        title: '<?echo $view_code;?> - <?echo $view_name;?>',
        animation: google.maps.Animation.DROP
        });
        
        var contentString = '<img src="../mymodules/image/markers/<?echo $view_type;?>.gif"> <?echo $view_code;?> - <?echo addslashes($view_name);?> '; // info window text
        var infowindow = new google.maps.InfoWindow({content: contentString});
        marker.addListener('click', function() {infowindow.open(map, marker);});
    
        marker.setMap(map);
    }
    google.maps.event.addDomListener(window, 'load', initialize);
</script>

if ($parking) {
    $parking_coord = '14.75835,49.4212';
    $parking_type = '217';
    $parking_name = 'Parking';
}

if ($start) {
    $start_coord = '14.75890,49.4254';
    $start_type = '2';
    $start_name = 'Start';
}