//<![CDATA[
			   var map;
function createMarker(point, html) {
  var marker = new GMarker(point);
  GEvent.addListener(marker, "click", function() {
    marker.openInfoWindowHtml(html);
  });
  return marker;
}
function load(field, value) {
	map = new GMap2(document.getElementById("map"));
	map.addControl(new GSmallMapControl());
	map.addControl(new GMapTypeControl());
	map.setCenter(new GLatLng(41.822421, -87.626490), 9);
	var bounds = new GLatLngBounds();
	// Download the data in data.xml and load it on the map. The format we
	// expect is:
	// <markers>
	//   <marker lat="37.441" lng="-122.141"/>
	//   <marker lat="37.322" lng="-121.213"/>
	// </markers>
	GDownloadUrl(site_url+"map_xml.php?field="+field+"&value="+value, function(data, responseCode) {
	  var markerFound = false;
	  var xml = GXml.parse(data);
	  if (xml.documentElement) {  
		  var markers = xml.documentElement.getElementsByTagName("marker");
		  var centroid_lat = 0;
		  var centroid_lng = 0;
		  for (var i = 0; i < markers.length; i++) {
			var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
									parseFloat(markers[i].getAttribute("lng")));
			centroid_lat += parseFloat(markers[i].getAttribute("lat"));
			centroid_lng += parseFloat(markers[i].getAttribute("lng"));
			//map.addOverlay(new GMarker(point));//createMarker(point, html)
			var html_out="<b>"+markers[i].getAttribute("development")+"</b><br />"+markers[i].getAttribute("html");
			if (markers[i].getAttribute("lat") != "" && markers[i].getAttribute("lng") != "") {
				map.addOverlay(createMarker(point, html_out));
				bounds.extend(new GLatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng")))); 
				markerFound = true;
			}
		  }
		  if (i>0) {
			centroid_lat = centroid_lat/i;
			centroid_lng = centroid_lng/i;
		  }
		  var zoom = 0;
		  if (i == 1) zoom=15;
		  else zoom=9;
		  if (markerFound == true) {
			  if (centroid_lat!=0 && centroid_lng!=0) {
				if (i == 1) {
					map.setCenter(new GLatLng(centroid_lat, centroid_lng), zoom);
				} else {
					map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));
					map.savePosition();
				}
			  }
		  } else {		
			//IF NO MARKER, PUT MAP TO DEFAULT
			map.setCenter(new GLatLng(41.822421, -87.626490), 9);		  
		  
		  }
		} else {
		
			//IF NO MARKER, PUT MAP TO DEFAULT
			map.setCenter(new GLatLng(41.822421, -87.626490), 9);		
		
		}
	});
	map.enableContinuousZoom();
}
    //]]>