Google Maps Zooms With New Features
* Double-click to zoom. Instead of double-clicking to recenter the map, we now support left double-clicking to recenter and zoom in one level, and right double-clicking to zoom out one level. This can be enabled or disabled by calling enableDoubleClickZoom() or disableDoubleClickZoom() from a GMap2 instance. By default, double-click to zoom is disabled for API sites, since some developers use double-click for other actions.
* Continuous zoom. For users of Firefox and Internet Explorer on Windows, we provide a smooth, continuous zoom animation when you zoom in one level. We turn off overlays during the zoom animation, so this may not be suitable for all API sites. To enable or disable continuous zoom, call enableContinuousZoom() or disableContinuousZoom() from a GMap2 instance. By default, continuous zoom is off.