Trademark symbol

[jd153]

Kevin,
 
The page at:
http://ppewww.ph.gla.ac.uk/%7Eflavell/iso8859/iso8859-pointers.html

by A.J. Flavell, contains the following explanation:

TM - They seek it here, they seek it there

More than all other special characters added together, people post questions
on the usenet WWW groups asking how to represent the TM (trademark) glyph. The
answer, up to and including HTML 2.0, is that you cannot. This glyph is not
included in the ISO8859-1 character code, and there is no defined way to
represent it. When the question is asked on usenet, it usually brings at least
one response that states a value of n for which &#n; displays the TM glyph on
that informant's browser: but readers who have taken on board my explanation
so far will realise that this is of no use, since it will display something
different, or nothing at all, on some other browsers. The value of n is
different according to whether the informant uses a Mac-based or an MS
Windows-based browser (X-based browsers do not display this glyph at all in
their normal fonts).

There are a number of kludges that you might consider using at this time:
the letters T and M, marked up in some way that you hope will be displayed
distinctively by the browser; an inline image with an ALT="TM", ALT="(TM)" or
whatever. Bearing in mind that a modest range of browsers already honour the
SUP tags, you might even enclose "(TM)" in those, like this: <SUP>(TM)</SUP>,
and here is what your current browser does with that: (TM). A browser that did
not understand the SUP tags would simply display the "(TM)" in its current
font. Omit the parentheses if you like.

If the proposals in the HTML3 drafts were fully implemented, you would be
able to get this glyph by coding &trade; - indeed, a few browsers already
honour that, even though there is no defined character code for it in
ISO8859-1. I cannot recommend that you use this yet though, because users who
are not HTML-aware will be confused when a browser that does not honour this
entity displays &trade; to them. Here is what your present browser displays in
response to this entity: &trade;.



>Does anyone know what escape code (&XXX;) will display the superscript "TM"
>trademark symbol?  We've checked numerous pages that include listings of
>"all" the character entities, but can only find the circle-r *registered*
>trademark, which is not what we're looking for.
>
>Thanks!
>
>
>
>Kevin Justie
>Head of Technical and Automated Services
>Morton Grove Public Library
>Morton Grove, IL
>(847) 965-4220
>kjustie at mgk.nslsilus.org
>http://www.nslsilus.org/mgkhome/
>Opinions expressed are those of the author and do not necessarily reflect
>offical Library policy.
>
>
>

***************************************************
Judy Din
Technical Services Staff Librarian 
University of Maryland at College Park Libraries
College Park, MD   20740
Email:jd153 at umail.umd.edu
Phone:301-405-9302
***************************************************