Google Maps Max Markers

I'm not too great with javascript. Does anyone know how I can increase the number of markers displayed on Google Maps. I'm pulling about 300 locations from a MySQL database, but it's only plotting 50 or so. Here's the code I'm using: ``` <script type="text/javascript"> //<![CDATA[ var iconBlue = new GIcon(); iconBlue.image = 'http://labs.google.com/ridefinder/images/mm_20_blue.png'; iconBlue.shadow = 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'; iconBlue.iconSize = new GSize(12, 20); iconBlue.shadowSize = new GSize(22, 20); iconBlue.iconAnchor = new GPoint(6, 20); iconBlue.infoWindowAnchor = new GPoint(5, 1); var iconRed = new GIcon(); iconRed.image = 'http://labs.google.com/ridefinder/images/mm_20_red.png'; iconRed.shadow = 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'; iconRed.iconSize = new GSize(12, 20); iconRed.shadowSize = new GSize(22, 20); iconRed.iconAnchor = new GPoint(6, 20); iconRed.infoWindowAnchor = new GPoint(5, 1); var customIcons = []; customIcons["city"] = iconBlue; function load() { if (GBrowserIsCompatible()) { var map = new GMap2(document.getElementById("map")); map.addControl(new GSmallMapControl()); map.addControl(new GMapTypeControl()); map.setCenter(new GLatLng(47.614495, -122.341861), 1); map.setMapType(G_SATELLITE_MAP); GDownloadUrl("map-xml.php", function(data) { var xml = GXml.parse(data); var markers = xml.documentElement.getElementsByTagName("geolocation"); for (var i = 0; i < markers.length; i++) { var time = markers[i].getAttribute("time"); var date = markers[i].getAttribute("date"); var city = markers[i].getAttribute("city"); var type = markers[i].getAttribute("city"); var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng"))); var marker = createMarker(point, time, date, city, type); map.addOverlay(marker); } }); } } function createMarker(point, time, date, city, type) { var marker = new GMarker(point, customIcons[type]); var html = "<b>Time:" + time + "<br />Date:" + date + "<br/>City:" + city +"</b>"; GEvent.addListener(marker, 'click', function() { marker.openInfoWindowHtml(html); }); return marker; } //]]> ``` Thanks