I am not sure if you got what I meant.
Try go to
http://www.javaranch.com/
Then scroll the page down to the bottom (this page is long so you would be like 4 screen-full down) of the page.
Then do a refresh by PF5 or the browser's refresh trigger like a button.
You will see that the javaranch page reloaded with the latest data from server, then went back to bottom of page - the same scroll location where you were.
We are talking about random/dynamic locations, not pages with #.