If you look at the code you will see code similar to:
GEvent.addListener(marker_0, 'click', function() {
marker_0.openInfoWindowHtml(address_0.infowindowtext);
});
if(!fromAddress.enabled || 'address_0' != 'address_0') {
map.setCenter(point, 13);
map.addOverlay(marker_0);
marker_0.openInfoWindowHtml(address_0.infowindowtext);
}
in the line after the addOverlay line, comment out the openInfoWindowHtml line... like:
GEvent.addListener(marker_0, 'click', function() {
marker_0.openInfoWindowHtml(address_0.infowindowtext);
});
if(!fromAddress.enabled || 'address_0' != 'address_0') {
map.setCenter(point, 13);
map.addOverlay(marker_0);
// marker_0.openInfoWindowHtml(address_0.infowindowtext);
}