Close the geolocation balloons

I'm using Omeka 1.5.1 with the plugin Geolocation. In the public interface, how can I do to close automatically each balloons after clicking on a pin. After several click, the balloons are always opened and it's a mess on the map.

In advance, thank you for the help.

Are you asking how to force only one balloon to be open at once?

Yes exactly.