addDomListener(instance:Object, eventName:string, handler:Function)
marker.addListener('click', aFunction);
google.maps.event.addListener(marker, 'mouseover', function () { infowindow2.open(map, marker);});
var marker = new google.maps.Marker({
position: uluru,
map: map,
title: 'Uluru (Ayers Rock)'
});