They also share a common set of buttons. Select the Contents tab to reveal a hierarchical table of contents. To jump to an individual page, click on its item in the table of contents. Select the Index tab to reveal an alphabetical list of subjects. Clicking on a subject displays the page about that subject.
Some topics have optional voice narration.
Displays the text of the narration. The examples are organized into a hierarchy of two levels, as shown in the Contents panel. If the table of contents is displayed, you can tell where you are by looking for the highlighted item in the Contents. If no item is highlighted, you are at the top level of the current module. Netscape users will not see the highlighted text.