In the same page : use the window's lift of your navigator (browser): Microsoft Internet Explorator®, Netscape
Navigator®, Webspace®, Cab®, others...) as well as the up and
down arrows of your keyboard.
From a page to another : click on the key words (those
which are underlined and
over which the mouse's pointer turns into a hand ) or on the following active icons,
present at the bottom of each page :