I built a php page which includes javascript: hyperlinks the user can use to dynamically display additional things on the same page. This is implemented using Javascript and the HTTPRequestObject. All these dynamic areas are initially blank.

While all this works incredibly well, what is unsatisfactory is that after the user has filled in some of the initially blank dynamic areas, navigates to another page and then returns using the browsers BACK button, the page is back in its original state.

What is the best way to maintain state so that the page can be show exactly as it was before prior to navigating to another page when the back button is clicked?

Any hints are greatly appreciated, thanks!