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               Message-ID: <362B4C81.A7E4C5CD@concentric.net>
                     Date: Mon, 19 Oct 1998 10:28:17 -0400
                     From: Eric Durant <eadurant@concentric.net>
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                       To: Ed Callahan <callahan@envstat.com>
                  Subject: Re: don't want height= option added to IMG tag
               References: <#Porbgv#9GA.181@uppssnewspub05.moswest.msn.net>
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Ed Callahan wrote:
> I manually enter the tag <img
> src="http://www.envstat.com/cgi-bin/rand_image.pl"> into a web page
> in FrontPage98 Editor.  Now when the web page is brought up a
> randomly selected JPG file is displayed.  However, FrontPage takes
> it upon itself to add width= and height= options to the img tag at
> some point (when I save the page?).  Since each JPG file is a
> different size the height and width values FrontPage selects are
> never correct.
>
> How can I get FrontPage to leave my img tag alone?

The other replies to your post suggest changing the way you layout your
page or select your images.  If these work for your application, that's
great, but getting the effect you originally asked about, if that is
indeed what you want to do, can be done.

The simplest solution is to include the IMG tag in FrontPage HTML Markup
tags, but if you want the proper WIDTH and HEIGHT included, read on...

Early this year, I achieved this effect on an NCSA Webserver by using
the server-side include capability to call a compiled program which
generated HTML code (several IMG tags, with randomly selected images
having various WIDTH and HEIGHT attributes).  The page had to pre-render
in browsers supporting it, and it was not desirable for the graphics art
people to have to enter the pixel dimensions into a database when adding
a new image, so the WIDTH and HEIGHT had to be derived from the image
files themselves.

In your case, this would probably mean subsuming the function of
rand_image.pl into ASP source protected by FrontPage HTML Markup tags. 
Alternatively, if the Webserver you're using post-processes your pages,
you could insert an include directive to it calling a program to include
just the image, again protected by FrontPage HTML Markup tags.

The sticky point is that, as is, your Perl program seems to output a
JPEG image stream.  The drawback to this is that you don't have a priori
access to the image metadata.  Depending on the nature of your random
image (selected from an image store, generated based on dynamic data,
etc.), you might want to consider restructuring the Perl program or
creating a helper program to select a random image (or attributes of a
random image) and then use this data to construct the page and as
arguments to another program (or as a direct reference if the image
store is generally static) to retrieve the image data.

C++ code for the image size functions and a routine to generate an IMG
collage from an image repository, complete with WIDTH and HEIGHT
attributes, compilable with both MSVC++ 5.0 and DEC cxx, is downloadable
from my Website, should you have a need for it.

Of course, the best approach depends on the details your task, server
and resources.

Good Luck,

Eric Durant
---
Website:  http://www.edurant.com/
ICQ:      9118339