Adobe 38040334 - Dreamweaver CS3 User Manual page 211

DREAMWEAVER CS3 204
User Guide
Nested framesets
A frameset inside another frameset is called a nested frameset. A single frameset file can contain multiple nested
framesets. Most web pages that use frames are actually using nested frames, and most of the predefined framesets in
Dreamweaver also use nesting. Any set of frames in which there are different numbers of frames in different rows or
columns requires a nested frameset.
For example, the most common frame layout has one frame in the top row (where the company's logo appears) and
two frames in the bottom row (a navigation frame and a content frame). This layout requires a nested frameset: a
two-row frameset, with a two-column frameset nested in the second row.
A
B
A. Main frameset B. Menu frame and content frame are nested within the main frameset.
Dreamweaver takes care of nesting framesets as needed; if you use the frame-splitting tools in Dreamweaver, you
don't need to worry about the details of which frames are nested and which are not.
There are two ways to nest framesets in HTML: the inner frameset can be defined either in the same file as the outer
frameset, or in a separate file of its own. Each predefined frameset in Dreamweaver defines all of its framesets in the
same file.
Both kinds of nesting produce the same visual results; it's not easy to tell, without looking at the code, which kind of
nesting is being used. The most likely situation in which an external frameset file would be used in Dreamweaver is
when you use the Open in Frame command to open a frameset file inside a frame; doing this may result in problems
with setting targets for links. It's generally simplest to keep all framesets defined in a single file.
Work with framesets in the Document window
Dreamweaver enables you to view and edit all of the documents associated with a set of frames in one Document
window. This approach enables you to see approximately how the framed pages will appear in a browser as you edit
them. However, some aspects of this approach can be confusing until you get used to them. In particular, each frame
displays a separate HTML document. Even if the documents are empty, you must save them all before you can
preview them (because the frameset can be accurately previewed only if it contains the URL of a document to display
in each frame).
To ensure that your frameset appears correctly in browsers, follow these general steps:
1 Create your frameset and specify a document to appear in each frame.
September 4, 2007