Page try{document.write(VarPageInSection.getValue());}catch(e){} of try{document.write(VarPagesInTitle.getValue());}catch(e){}
During your lesson, to continue to the next page you will have an arrow button located at the lower right of the page. This button will only be visible after the audio has completed playing. This will verify all the content has been addressed before you can proceed.
Also, there is a back button if you choose to go back to view previous content.
Give it a try!