Google Maps Stop Event Propogation

// Add function to set required google event parameters

stopPropagation : function (e){ 
        if(!e){ 
                e=window.event; 
        } 
        e.cancelBubble=true; 
        if(e.stopPropagation){ 
                e.stopPropagation(); 
        } 
}

and then just call it with the click method already being passed into the RichMarker click event

google.maps.event.addListener(marker, 'click', function (e) {
   // ...
   stopPropagation(e);               
});