Frames - HTML and XHTML: The Definitive Guide - page 696

Figure 11-1. A simple six-panel frame layout
Notice a few things in the simple frame example and its rendered
image ( Figure 11-1 ). First, like tables, the browser fills frames in a
frameset row by row. Second, Frame 4 sports a scroll bar because we
told it to, even though the contents may otherwise fit without scrolling.
(Scroll bars automatically appear if the contents overflow the frame's
dimensions, unless explicitly disabled with the scrolling attribute in the
<frame> tag.)
Another item of interest is the name attribute in the example frame tags.
Once named , [*] you can reference that particular frame as the target in
which to display a hyperlinked document or perform some automated
action. To do that, you add a special target attribute to the anchor ( <a> )
tag of the source link.
[*] But, interestingly, not id 'd, even though the attribute exists for frames and can identify other HTML/
XHTML elements as hyperlink targets.