title: Google Chart API & GeoMaps
body: <p>I'm stuck with an issue.
  Hope someone already faced it and fixed it.
  I would like to create a interactive geo maps like in Google Analytics. I mean a zoomable map from world to country to display geo infos.
  I already have all the data split by regions, country and cities.
  I'm able to put them on a Google geomap at one level. But when the user clicks on a country, I would like he can get more details....like in Analytics at the end.
  I have tried to add listeners on the geomap to get the event and I hoped to change the options of the geomap on the fly but no luck... 
  Does anyone have an idea ?</p>
  
  <p>Thanks for your help.</p>