RE: Non-Scrolling Region

Dave Raggett (
Wed, 28 Sep 94 9:43:57 BST

Ralph Graw writes:

> Has anyone given any thought to the idea of a "non-scrolling" region
> defined by HTML+ tags? This seems analogous to a capability within help
> file systems such as that in MS Windows. It could be used for tool bars,
> a bit of context for long material, etc. They could expand horizontally
> as the window is resized, have a .GIF for a background, be located/aligned
> similar to images, etc. There could be multiple defined, allowing the
> folks at <a href="">Galaxy, for example</a>, to put their
> imagemap bars where they probably wanted them originally.

Funny you should mention that, but I am just in the process of experimenting
with this for the HTML 3.0 proposal.

In HTML+ I extended the LINK element and defined a fixed set of REL
attribute values for this purpose. Using LINK in this way to define
navigation buttons (or menu items) makes it particularly easy to add
hypertext paths or guided tours where a separate list of URLs is used
to insert Previous and Next buttons into the toolbar. In fact the HTTP
protocol even defines a mechanism for using WWW-Link: fields in the
MIME header that are merged into the document head. This gives us a
way of defining toolbars for other document types than HTML.

The basic requirements are:

o Defining a set of buttons or menu items that can be viewed
on graphical and non-graphical browsers, preferably with
the ability to provide a custom graphic

o Providing a way for automatically inserting Previous
and Next buttons when following a guided tour

o Static text such as "Company Confidential"

o Static images such as corporate logos

In my opinion the position of the non-scrolling area should be a matter
of personal preference, e.g. whether you prefer it to be at the top,
left or right sides, or the bottom of the scrolling area. The security
status of a document *shouldn't* be part of either area to avoid the
worry that authors might work a way of fooling the user with a suitably
chosen graphic. SecureMosaic uses a new region placed next to the globe

Anyway, I hope to get something working, but am running out of time
for WWWF'94. The email load is getting in the way of programming :(

Best wishes,

Dave Raggett

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