If you don't really want the fresh data from server you don't need to include Ajax. To transfer the local data you can have : 1) Global variable accessible in any html page. 2) Use local/session storage. 3) Set global and singleton functions with getter and setters.
.. in old fashion, you can using Cookies (for not credential data) as alternative cmiiw :)
You can use local storage. localStorage["key"] = data; In other pages, data= localStorage["key"];