Advanced features in coding for Google Maps

[waggas1234]

There's a website called Animaps that uses the Google Maps API. Users can create a timeline of events by placing markers and shapes and images and giving them paths to move over and the website animates it.

I want to code something like this on my own (I know Javascript but nothing about the Google Maps API) to just show border changes of different countries in history.

On this example of the events in Libya in 2011, link here: http://www.animaps.com/pb/651001/5535/Libya_2011

Differently colored shapes grow and shrink in size to show territory over the country that the different armed forces held.

On this example of 9/11 here: http://www.animaps.com/pb/328005/7934/September_11

Drawn paths of the planes are animated.

How could both of these things be done in Javascript?