How to set a popup on markers with Google Maps API?

Question

I have this code where I display and set all my markers. How can I add a popup with some information on markers with this code? I add \"i\" variable on text, but it sets on all

Answer 1

var marker = new google.maps.Marker({
              position: myLatLng,
              ....
              content: point[4]
          });
google.maps.event.addListener(marker, 'click', function() {
            infowindow.setContent(this.content);
            infowindow.open(map, this);
          });

Code inside loop. This worked for me perfectly.