Frames divide web pages into multiple scrollable regions.
Not all browsers support frames. Navigating Frames Check your browser documentation for details on how to go BACK using frames. The thing to understand is that when the contents of a frame change as you click on links, the BACK button will either go back to the previous page in that frame, or to the page before the one that originally created the frame, depending on how your browser is configured to work. What you probably want to do is to simply refresh the large frame on the right, for example to see recent changes to a particular page. With other browsers there is likely a similar way to refresh the pane.