/* header.js */
/*
This header defines parameters used by footer.js.
On all pages except the index it also shows the logo at the top,
and this logo is a link back to the index page.
Insert this header at the top of any HTML page just after , thus:
For pages in the "people" subdirectory it must point one level up, thus:
DO NOT use a root slash: not "/header.js". This works on the live website only, but
we want it to work on any back-up copy on a hard disk, in some arbitrary directory.
*/
/* language parameter -- see footnote (1) */
var lang; /* 'en', 'fr', 'bg', etc. */
/* Are we in the main index directory, or one level down in "people"? */
/* (temporary Jan. 2008: check for "sitemap" too) */
var rootdir;
if (location.pathname.indexOf('people/') > -1
|| location.pathname.indexOf('people\\') > -1) /* for IE */
rootdir = '../'; /* look one level up */
else if (location.pathname.indexOf('sitemap/') > -1
|| location.pathname.indexOf('sitemap\\') > -1)
rootdir = '../';
else
rootdir = '';
/* Work out from the parameters what the correct front page is. */
var indexname = rootdir + 'index';
if (lang == 'es')
indexname = indexname + 'Spanish';
else if (lang == 'bg')
indexname = indexname + 'Bulgarian';
else if (lang == 'zh')
indexname = indexname + 'Chinese';
else if (lang == 'ja')
indexname = indexname + 'Japanese';
else if (lang == 'ms')
indexname = indexname + 'Bahasa';
/* 'ms' is ISO code for Malay; Indonesian is 'id' but as they're the
same language we treat them both as just Bahasa */
indexname = indexname + '.html';
var logoname = rootdir + 'logoTop.jpg';
/* Every page except the English index has the upper left logo linking back to the
index for the appropriate language. */
if (location.pathname.indexOf('index.html') == -1) {
document.write('');
}
/* FOOTNOTES
(1) I want to be able to add new parameters without worrying about the fact that
they're not defined in older pages. Older pages can use the default value, e.g.
if (lang = 'fr')
ShowSomePage('French');
else
ShowSomePage('English');
This way we can declare "var lang='fr';" somewhere in the French page. By redeclaring
"var lang" in this header, we ensure it exists so the code runs -- even if the English
page doesn't mention it. Redeclaring variables like this is safe: it preserves any
assigned values they might have had -- so it doesn't reset 'fr' to undefined.
*/