Accessing ExtendedData information via Google Maps API v3

Question

I have a KML file which contains within each node an node, and then a number of no

Answer 1

I'm looking for the same thing. You can see what data is being returned by using the JSON.stringify() function on the kmlEvent object:

alert(JSON.stringify(kmlEvent));    

ExtendedData nodes are partially supported according to the KML Elements Supported in Google Maps page but I have yet to figure out how to properly use them.