--- a/filters.inc	Thu Oct 11 20:36:24 2012 +0200
+++ b/filters.inc	Thu Oct 11 22:11:33 2012 +0200
@@ -3,6 +3,14 @@
  * @file
  * Filters which may be used from xml
  */
+
+/**
+ * A configuration function for generating an active status in a list
+ * item corresponding to the currently active 'name'
+ *
+ * @param $input the string to be processed
+ * @param $options Options for this file
+ */
 function activeNav($input, $options)
 {
   $name = $options->getName();
@@ -28,6 +36,13 @@
   return $output;
 }
 
+/**
+ * A configuration function for generating a language bar.
+ *
+ * @param $input the string to be processed
+ * @param $options Options for this file
+ * @param $languages array of alternative languages
+ */
 function addLangBar($input, $options, $languages)
 {
   $name = $options->getName();