diff --git a/LinkTitles.body.php b/LinkTitles.body.php
index 226f43e..55e8e68 100755
--- a/LinkTitles.body.php
+++ b/LinkTitles.body.php
@@ -28,9 +28,10 @@
 			error_log(print_r($var, TRUE) . "\n", 3, 'php://stderr');
 	};
 
+	/// Main function of the extensions. Sets up parser hooks and performs the 
+	/// actual parsing.
+	/// TODO: Use the current PageContentSave hook rather than the deprecated ArticleSave hook.
 	class LinkTitles {
-		static $targetTitleText;
-
 		/// Setup function, hooks the extension's functions to MediaWiki events.
 		public static function setup() {
 			global $wgLinkTitlesParseOnEdit;
diff --git a/SpecialLinkTitles.php b/SpecialLinkTitles.php
index 0fb4ed0..75680a7 100644
--- a/SpecialLinkTitles.php
+++ b/SpecialLinkTitles.php
@@ -24,6 +24,8 @@
     die( 'Not an entry point.' );
 	}
  
+/// Provides a special page that can be used to batch-process all pages in 
+/// the wiki. By default, this can only be performed by sysops.
 class SpecialLinkTitles extends SpecialPage {
 
 	function __construct() {
@@ -33,6 +35,8 @@ class SpecialLinkTitles extends SpecialPage {
 		parent::__construct('LinkTitles', 'linktitles-batch');
 	}
 
+	/// Entry function of the special page class. Will abort if the user does 
+	/// not have appropriate permissions ('linktitles-batch').
 	function execute($par) {
 		// Prevent non-authorized users from executing the batch processing.
 		if (  !$this->userCanExecute( $this->getUser() )  ) {