Google Map v3 API multiple markers

googlemapsv3.php

<script>
var infowindow = null;
var markerArray = [];
var bounds: new google.maps.LatLngBounds();
var map = new google.maps.Map(document.getElementById("map_canvas"), {zoom: 4,mapTypeId: google.maps.MapTypeId.ROADMAP});

function set_marker(lat, lng){
    var position = new google.maps.LatLng(lat, lng);
    var marker = new google.maps.Marker({map: map, position: position});

    markersArray.push(marker);
    bounds.extend(position);

    return marker;
}

/* now inside your initialise function */
infowindow = new google.maps.InfoWindow({
content: "holding..."
});

</script>

<script>

<?php foreach($this->searchResult as $result): ?>
marker = set_marker(<?php echo $result['Latitude'];?>, <?php echo $result['Longitude']; ?>);
marker.html = '<div id="content">'+
        '<div id="siteNotice">'+
        '</div>'+
        '<h1 id="firstHeading" class="firstHeading">Uluru</h1>'+
        '<div id="bodyContent">'+
        '<p><b>Uluru</b>, also referred to as <b>Ayers Rock</b>, is a large ' +
        'sandstone rock formation in the southern part of the '+
        'Northern Territory, central Australia. It lies 335&#160;km (208&#160;mi) '+
        'south west of the nearest large town, Alice Springs; 450&#160;km '+
        '(280&#160;mi) by road. Kata Tjuta and Uluru are the two major '+
        'features of the Uluru - Kata Tjuta National Park. Uluru is '+
        'sacred to the Pitjantjatjara and Yankunytjatjara, the '+
        'Aboriginal people of the area. It has many springs, waterholes, '+
        'rock caves and ancient paintings. Uluru is listed as a World '+
        'Heritage Site.</p>'+
        '<p>Attribution: Uluru, <a href="http://en.wikipedia.org/w/index.php?title=Uluru&oldid=297882194">'+
        'http://en.wikipedia.org/w/index.php?title=Uluru</a> '+
        '(last visited June 22, 2009).</p>'+
        '</div>'+
        '</div>';

marker.markerId = markersArray.length-1;
google.maps.event.addListener(marker, 'click', function (){
    infowindow.setContent(this.html);
    infowindow.open(map, this);
});
<?php endforeach; ?>

</script>