Multiple html pages response on server request

My requirement is to keep my web application keep working even when connection with the server is lost.

Say, there are 4 different pages, and all the information needed to generate page 2, 3 and 4 are already on page 1.

So, when page 1 is requested from the server, and the page is loaded in the browser, if the connection is lost after that, the user should be able to explore the other pages without having to talk to the server.

So effectively, when page 1 is loaded, I want the other pages to be loaded too.

What technology should I study up on to achieve this functionality? I just need some pointers. I am working with asp.net.