I have a web site with pages that contain links to themselves. I would like to do something different every other time the user hits the link (i.e. there are 2 states that the page can be in).

I have tried to access history but I've been getting access privilege errors in Netscape 6 and IE gives me something about a null object.

Minimally, I would like to know if the current page being displayed in a browser is the same as the previous page in history.

Preferably I'd like to know the number of consecutive entries in history that the current page has.