"Bread-Crumb" Links

Once I generate my WinHelp project and open it in a browser, the topic windows show across the top of the window what I've heard called a "bread-crumb" navigation trail (for example, one such trail would be Home > Introduction > Overview. I would like to know how to remove these navigation links. I've looked through all the windows and through Help, but I'm not really sure what topic to look under.

Any help would be appreciated. It's a cosmetic thing but it would make the final product, which will include page-specific help, look much better.

Thanks.