<?php
/*  Copyright 2004 Patrick R. Michaud (pmichaud@pobox.com)

    This script enables the ?skin= and ?setskin= parameters for
    wiki pages.  The ?skin= parameter causes the current page to be 
    displayed with some alternate skin (defined by the WikiAdministrator),
    the ?setskin= parameter sets a cookie on the user's browser to
    always display pages with the requested skin.  
    
    To use this script, define an array called $PageSkinTemplates 
    containing skin names and template files, then 
    include('local/skinchange.php'); in your config.php.
    An example $PageSkinTemplates to set up 'pmwiki', 'myskin',
    and 'classic' skins might read:

        $PageSkinTemplates = array(
           'pmwiki' => 'pub/skins/pmwiki/pmwiki.tmpl',
           'myskin' => 'pub/skins/myskin/myskin.tmpl',
           'classic' => 'pub/skins/classic/classic.tmpl');

    If a URL requests a skin that isn't in this array, then PmWiki
    defaults to the skin already defined by $PageTemplateFmt.

    By default, the setskin cookie that is created will expire after
    one year.  You can set it to expire at the end of the browser
    session by setting $PageSkinCookieExpires=0;
*/

SDV($PageSkinCookieExpires,$Now+60*60*24*365);

if (isset($_COOKIE['setskin'])) $PageSkin = $_COOKIE['setskin'];
if (isset($_GET['setskin'])) {
  $PageSkin = $_GET['setskin'];
  setcookie('setskin',$PageSkin,$PageSkinCookieExpires,'/');
}
if (isset($_GET['skin'])) $PageSkin = $_GET['skin'];
if (@$PageSkinTemplates[$PageSkin])
  $PageTemplateFmt = $PageSkinTemplates[$PageSkin];
?>