Official Google Maps API Blog: v2.77: GMarker show, hide, and isHidden = Quick & Easy Marker Toggling!Posted by Pamela Fox, Maps API Team The day has come - the API now has officially documented methods for showing and hiding markers, and querying their ("hidden-ness") state. Using a combination of GMarker.show(), GMarker.hide(), and GMarker.isHidden(), you can painlessly toggle the visibility of markers. Here's what the code looks like to toggle one marker: if (marker.isHidden()) { marker.show();
