title: How to zoom in smoothly on a marker in Google Maps?
body: <p>I'd like to be able to zoom in smoothly on a marker in Google Maps. If one just sets the zoom on double click, the map is suddenly on that zoom level, without any smooth transition. </p>
  
  <p>Zooming in only one level further than the current level, Google Maps shows a nice smooth transition. So it must be possible to zoom in smoothly for more than one level, but how?</p>