CSS for organic groups

Thought this might be useful - apply CSS to anything in the context of an organic group if CSS is set on the group node.

Tested and working on my end, using hook_preprocess_page since a view, panel or some other non-node page might be in the context of a group.

/**
 * Implementation of hook_preprocess_page().
 */
function css_og_preprocess_page() {
  $group = og_get_group_context();
  if (variable_get("css__{$group->type}", 0) && !empty($group->css_css)) {
    $attributes = array(
      'type' => 'text/css',
      'rel' => 'stylesheet',
      'media' => 'all',
      'href' => url('css/get/' . $group->nid),
    );
    $link = '<link'. drupal_attributes($attributes) .' />';
    $css = "\n//--><!]]>\n"."</script>\n".
    $link . "\n".
    '<script type="text/javascript">'."\n<!--//--><![CDATA[//><!--\n";
    drupal_add_js($css, 'inline', 'header', FALSE, FALSE, FALSE);
  }
}