use 'oncelistener' for circle mouseout
diff --git a/asterix-examples/src/main/resources/black-cherry/static/js/cherry.js b/asterix-examples/src/main/resources/black-cherry/static/js/cherry.js
index 240c578..a400353 100755
--- a/asterix-examples/src/main/resources/black-cherry/static/js/cherry.js
+++ b/asterix-examples/src/main/resources/black-cherry/static/js/cherry.js
@@ -593,7 +593,7 @@
                 map_info_windows[m].open(map);
             }
         });
-        google.maps.event.addListener(map, 'mousemove', function(event) {
+        google.maps.event.addListenerOnce(map, 'mousemove', function(event) {
             map_info_windows[m].close();
 
         });