Open and Close InfoWindow onclick

Question

Can anyone help me code inside my eventListener so that an infowindow will do the following: open if it\'s currently closed, and close if it\'s currently open.

I\'ve

Answer 1

var currentInfoWindow = null; 

then on every marker click event I do something like this: 

var infowindow = new google.maps.InfoWindow({ 
    content: "your content here" 
}); 
google.maps.event.addListener(marker, 'click', function() { 
    if (currentInfoWindow != null) { 
        currentInfoWindow.close(); 
    } 
    infowindow.open(map, marker); 
    currentInfoWindow = infowindow; 
}); 

Source : https://groups.google.com/forum/#!topic/google-maps-js-api-v3/cA2VRg4TO1k