The horizontal navigation bar is quite simple but it does nevertheless feature the bold-highlighting of the current section and automatic title name expansion.

The vertical navigation bar uses a big table with the left column filled with navigation items and the body text to appear in the right column.

The tabbed vertical navigation bar adds additional navigation items at the top of the screen with the section names. The current section gets highlighted.

The multi section navigation bar has sections cleaned away from the left column that are not in the same section as the currently viewed page.