/**
* Creates a navigation div with the subnav items of the current section.
*
* Optionally get the subnav links for any section given as a parameter.
*
* Parameters:
* $section - defaults to the current section but can be overridden
* $pre_string - a string to go before the navigation
* $post_string - a string to go after the naviagion
* $id - the id of the navigation <div>
*
* @return Formatted navigation <ul> wrapped in a <div>
*/
function sub_navigation($section = '', $pre_string = '', $post_string = '', $id = 'subnav')
{
global $_section;
# Use the current section unless a specific section is given as a parameter
$section = use_default($section, $_section);
$sitemap = get_sitemap();
if (has_sub_items($section)) {
$sub_nav = '';
if (exists($pre_string)) {
$sub_nav .= "{$pre_string}";
}
$sub_nav_items = format_navigation($sitemap[$section], $exclusions = array(), $include_sub_nav = true, $include_ids = false);
$sub_nav .= content_tag('div', $sub_nav_items, array('id' => $id));
if (exists($post_string)) {
$sub_nav .= "{$post_string}";
}
return $sub_nav;
}
}
case 'theme':
case 'labelsnotes':
$old = format_color($old);
$new = format_color($new);
break;
case 'referencematerial':
$old = format_referencematerial($old, $reference_material);
$new = format_referencematerial($new, $reference_material);
break;
case 'display':
$old = format_display($old, $string);
$new = format_display($new, $string);
break;
case 'navigation':
$old = format_navigation($old, $string);
$new = format_navigation($new, $string);
break;
case 'review':
$old = format_review($old, $string);
$new = format_review($new, $string);
break;
case 'passmark':
case 'distinction':
$old = format_passmark($old, $string);
$new = format_passmark($new, $string);
break;
case 'labs':
$old = format_lab($old, $changed_labs);
$new = format_lab($new, $changed_labs);
break;
case 'marking':
