The regular version of the site has been designed to work with older and less capable browsers. If you are not sure of your browser's capabilities, it's probably best to visit the "frame-free" version of Tefl-magic.com.   In the "Framed Site" the screen has been divided into three "mini-pages". Two of these mini pages, the top and left navigation-bars, do not change when you click on a link. Only the main display area changes. This means that your computer needs less information to make each subsequent new page so it should arrive more quickly. Select this link for faster surfing or if you are using a small screen resolution (640 by 480).