When I browse a repo in GitHub (example: https://github.com/sizzlelab/kassi) and click a folder, it loads the folder with a cool javascript animation, moving stuff to the left, instead of reloading the whole page. However, the URL of the page is still updated on every click.
How do I achieve this? To my knowledge, you cannot update the page URL from javascript, so you need to refresh the page. My guess is that they do a partial caching of the page so that it does not seem to reload and then run the javascript animation after reload. Am I on the right track? Any pointers on how this can be achieved? My environment is jQuery and rails, but a general advice will help also.