Asking for email for a site which doesn't need it? Instant turn-off. I persevered because I found it intriguing.<p>I wasn't familiar with Indonesian Ramayana, and thought how could they get the names of major characters and facts wrong(Shinta is Sita here, avlenka is lanka, ayoda is ayodhya, rahwana is ravana, and so and on). But a quick trip to Wikpedia says Indonesia has its own interpretation.<p>That said, though the concept is intriguing, I don't think html5/js/css is an appropriate medium for this type of interactive storytelling yet. Say what you will about flash, it's a far better medium for this kind of interactive storytelling.
Unfortunately they seemed to start with the question "how can we use Chrome and Google products" rather than how can we best present the story. Understandable based on Google's funding of the project. E.g. Do you really need linking in separate windows when you could have used divs? Beautiful illustrations though.
I'm not interested in signing up to check it out.
No need though as there is a quick high level overview here:
<a href="http://www.f-i.com/google/ramayana/" rel="nofollow">http://www.f-i.com/google/ramayana/</a>