I'm just curious. Is it possible to have a page where I list, let's say, three links.
VERSION A
VERSION B
VERSION C

When the page is loaded first time the session is set to A.
And when the user is clicking on VERSION B, I would like the page to reload and set the session to B.
If they click on C it will be set to C.
Is this possible by just clicking a text link and not set the code in the url?
I kinda like when everything is happening in the background.

Or any other ideas on how to do this?