Inserting a variable in a stylesheet.

Doug Laidlaw

I am in the process of converting a page with nested tables to CSS. The
current page is at http://www.douglaidlaw.net./boykett/history.html. So
far, it is using a page-wide stylesheet to set fonts only.

I want this page to be followed by others with identical layout for
successive "chapters." In each page, I would like a different image to
replace the overworked silhouette. For example, in the next page, I would
like to have photos of Thomas' office building, then and now. So they will
be not only different from Page 1, but different from each other.

How can I handle that with a stylesheet? Rather than do away with tables
altogether, as a first stage, I would prefer to move the table structure to
a site-wide stylesheet. All pages use the same basic structure. I would
need something like IMG1 and IMG2 in the stylesheet, and the URLs stated in
the individual page.

Thanks,

Doug
--
Registered Linux User No. 277548. My true email address has hotkey for
myaccess.
Never let your sense of morals get in the way of doing what's right.
- Isaac Asimov.

Jan 12 '06 #1

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1375

Martin Honnen

Doug Laidlaw wrote:

In each page, I would like a different image to
replace the overworked silhouette. How can I handle that with a stylesheet?

If you have server-side scripting (e.g. PHP or Perl or JSP or ASP)
available then you could generate stylesheets dynamically, for instance
passing in the image URL in the query string e.g.
<link rel="stylesheet"
type="text/css"
href="stylesheet.php?img=image1.gif">
and then generating the CSS you want to serve.

There is nothing you could do directly in a static stylesheet as CSS
does not allow you to have variables which a user agent would substitute
as needed.

--

Martin Honnen
http://JavaScript.FAQTs.com/

Jan 12 '06 #2

Andy Dingley

On Thu, 12 Jan 2006 14:52:28 +1100, Doug Laidlaw
<la******@myaccess.com.au> wrote:

I want this page to be followed by others with identical layout for
successive "chapters." In each page, I would like a different image to
replace the overworked silhouette.

You need to apply different fragments of a stylesheet to each group of
pages.

There are two ways to do this - take your pick.

One is to have n+1 stylesheets. Each page links in the "common"
stylesheet, then after that links in the appropriate "chapter"
stylesheet. The chapter stylesheet has only the chapter-specific changes
in it (for robustness, these over-write a safe default that's in the
common stylesheet anyway).

The other way is to have one stylesheet and to give each page a class on
the <body> tag of "chapter1" etc. Then use this in a selector in a
repeated group of similar rules in the common stylesheeet, changign the
value as necessary.

Don't do dynamic things - this isn't a dynamic site. It's easier to do
it as a one-off publishing task, rather than a repeated page-serving
task.

Jan 13 '06 #3

Doug Laidlaw

Martin Honnen wrote:

Doug Laidlaw wrote:
In each page, I would like a different image to
replace the overworked silhouette.

How can I handle that with a stylesheet?

If you have server-side scripting (e.g. PHP or Perl or JSP or ASP)
available then you could generate stylesheets dynamically, for instance
passing in the image URL in the query string e.g.
<link rel="stylesheet"
type="text/css"
href="stylesheet.php?img=image1.gif">
and then generating the CSS you want to serve.

There is nothing you could do directly in a static stylesheet as CSS
does not allow you to have variables which a user agent would substitute
as needed.

Thank you, Martin. Yes, I do have PHP. The family tree program itself is
written in PHP. I suppose that I could just leave the image to be put
there by HTML, in a similar fashion to the text block, but I haven't
thought it through.

Doug.
--
Registered Linux User No. 277548. My true email address has hotkey for
myaccess.
No man was ever endowed with a right without being at the same time saddled
with a responsibility.
- Gerald W. Johnson.

Jan 13 '06 #4

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Inserting a variable in a stylesheet.

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