Cognos Report - Google Maps (Multiple Points)

How can I plot multiple points on a map based upon multiple address in a list report?

I can plot one at a time by adding a HTML tag ("Show Map") as below:

'<a href="#" onClick="displayMap( '''+ [Query1].[Address]  +', '+[Query1].[PostCode] +', '+[Query1].[Country]+''')">  Show Map</a>'

Then have the google map display the results:

<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key="GOOGLEKEY"
      type="text/javascript"></script>
<div id="map" style="width: 500px; height: 400px"></div>
<script type="text/javascript">
var map = new GMap2(document.getElementById("map"));
var geocoder = new GClientGeocoder();

function showAddress(address) {
      if (geocoder) {
            geocoder.getLatLng(address, function(point) {
                  if (!point) {
                        alert(address + " not found");
                  } else {
                        map.setCenter(point, 15);
                        var marker = new GMarker(point);
                        map.addOverlay(marker);
                        map.openInfoWindowHtml(map.getCenter(), address);

                        map.addControl(new GSmallMapControl());
                        map.addControl(new GMapTypeControl());
                        map.checkResize();
                  }
            });
      }
}

var firstTime=1;
function displayMap (address)  {
      showAddress(address);
      if(Number(firstTime) > 0 ) {
            firstTime = 0;
            showAddress(address);
      }
}

</script>

This is as per the Cognos Support site. But how can I plot multiple addresses (e.g. all addresses returned for a query to identify locations of customers etc.)