Frames Navigation

I've got an easy problem that needs a solution. My page has three frames: top, left, and main.

The top frame has links to the five main sections of the site and always displays the same links.

The left frame has links to various parts of the section selected from the top frame. Each section has its own seperate file for this frame.

The main frame is the content of the site. A server side script is run at the beginning of each main ASP file to determine which file to load into the left frame.

Problems occur when trying to navigate the site. If the user hits the back button once, the only thing that changes is the left frame. The main page remains the same. What is the best way to fix this problem?

the back button only goes back on the frame that was loaded last. so if you want to go back one page in the main then put a go back button in it. I think you can use the javascript go back history button in there and it should go back on the main only.

<a href="#" onClick=parent.main.history.back();>go back</a>

I think that should work.