| Some sites you
visit will want to show you more than one page at once. They solve
this problem by putting their pages in frames, or different sections
of the screen. When you use frames, you can keep one part of the
screen open all the time while you look at other things in the other
part. An example would be a page about animals that lists mammals in
one frame. When you click on "deer" information shows up in the
other section of the page while the list of mammals remains the
same. In creating a Web
site, frames is the use of multiple, independently controllable
sections on a Web presentation. This effect is achieved by building
each section as a separate HTML file and having one "master" HTML
file identify all of the sections. When a user requests a Web page
that uses frames, the address requested is actually that of the
"master" file that defines the frames; the result of the request is
that multiple HTML files are returned, one for each visual section.
Links in one frame can request another file that will appear in
another (or the same) frame. A typical use of frames is to have one
frame containing a selection menu in one frame and another frame
that contains the space where the selected (linked to) files will
appear. |
