Single Page link to same page- how to do it

Single Page link to same page- how to do it

i have a single html5 page (NOTE:- its not a multi-page)..

I load a big XML with say 100 nodes and display one node content on single page.. now when user say next, i want to load same page with 2nd node.. user click next, i call same page with 3rd node content ....

I achieve this dirty way of re-submitting his html url as external link but issue is every time this page is loaded i had to re-parse 100 nodes again.. any good way to do this so i can keep my global variables as-is which are obtained from one time parsing..