diff --git a/file/acp/be.bastelstu.wcf.chat.update.php b/file/acp/be.bastelstu.wcf.chat.update.php
index ba1d721..4f7504b 100644
--- a/file/acp/be.bastelstu.wcf.chat.update.php
+++ b/file/acp/be.bastelstu.wcf.chat.update.php
@@ -2,7 +2,7 @@
 namespace be\bastelstu\wcf\chat;
 
 /**
- * Handles updates.
+ * Handles updates of Tims Chat.
  *
  * @author 	Tim Düsterhus
  * @copyright	2010-2012 Tim Düsterhus
@@ -10,11 +10,20 @@
  * @package	be.bastelstu.wcf.chat
  */
 final class Update {
+	/**
+	 * Contains all the rooms the current installation has.
+	 * 
+	 * @var array<\wcf\data\chat\room\ChatRoom>
+	 */
 	private $rooms = null;
+	
 	public function __construct() {
 		$this->rooms = \wcf\data\chat\room\ChatRoom::getCache();
 	}
 	
+	/**
+	 * Notifies users to refresh the chat as the JS may no longer be fully compatible with the PHP code.
+	 */
 	public function execute() {
 		foreach ($this->rooms as $room) {
 			$messageAction = new \wcf\data\chat\message\ChatMessageAction(array(), 'create', array(
diff --git a/file/lib/page/ChatCopyrightPage.class.php b/file/lib/page/ChatCopyrightPage.class.php
index 47b7a78..2b93f38 100644
--- a/file/lib/page/ChatCopyrightPage.class.php
+++ b/file/lib/page/ChatCopyrightPage.class.php
@@ -12,7 +12,14 @@
  * @subpackage	page
  */
 class ChatCopyrightPage extends AbstractPage {
+	/**
+	 * @see \wcf\page\AbstractPage::$neededModules
+	 */
 	public $neededModules = array('CHAT_ACTIVE');
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$neededPermissions
+	 */
 	public $neededPermissions = array('user.chat.canEnter');
 	
 	/**
diff --git a/file/lib/page/ChatMessagePage.class.php b/file/lib/page/ChatMessagePage.class.php
index 1f821df..403de43 100644
--- a/file/lib/page/ChatMessagePage.class.php
+++ b/file/lib/page/ChatMessagePage.class.php
@@ -13,12 +13,40 @@
  * @subpackage	page
  */
 class ChatMessagePage extends AbstractPage {
+	/**
+	 * The new and unseen messages.
+	 * 
+	 * @var array<\wcf\data\chat\message\ChatMessage>
+	 */
 	public $messages = array();
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$neededModules
+	 */
 	public $neededModules = array('CHAT_ACTIVE');
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$neededPermissions
+	 */
 	public $neededPermissions = array('user.chat.canEnter');
+	
+	/**
+	 * The room the user joined.
+	 * 
+	 * @var \wcf\data\chat\room\ChatRoom
+	 */
 	public $room = null;
-	public $roomID = 0;
+	
+	/**
+	 * All the users that are currently in the room $this->room.
+	 * 
+	 * @var array<\wcf\data\user\User>
+	 */
 	public $users = array();
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$useTemplate
+	 */
 	public $useTemplate = false;
 	
 	/**
@@ -82,9 +110,9 @@ public function readMessages() {
 	 * Initializes the room databaseobject.
 	 */
 	public function readRoom() {
-		$this->roomID = \wcf\util\ChatUtil::readUserData('roomID');
+		$roomID = \wcf\util\ChatUtil::readUserData('roomID');
 		
-		$this->room = chat\room\ChatRoom::getCache()->search($this->roomID);
+		$this->room = chat\room\ChatRoom::getCache()->search($roomID);
 		if (!$this->room) throw new \wcf\system\exception\IllegalLinkException();
 		if (!$this->room->canEnter()) throw new \wcf\system\exception\PermissionDeniedException();
 	}
diff --git a/file/lib/page/ChatPage.class.php b/file/lib/page/ChatPage.class.php
index f0d31f1..a294867 100644
--- a/file/lib/page/ChatPage.class.php
+++ b/file/lib/page/ChatPage.class.php
@@ -15,7 +15,14 @@
  */
 class ChatPage extends AbstractPage {
 	public $chatVersion = '';
+	/**
+	 * @see \wcf\page\AbstractPage::$neededModules
+	 */
 	public $neededModules = array('CHAT_ACTIVE');
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$neededPermissions
+	 */
 	public $neededPermissions = array('user.chat.canEnter');
 	public $newestMessages = array();
 	public $room = null;
diff --git a/file/lib/page/ChatRefreshRoomListPage.class.php b/file/lib/page/ChatRefreshRoomListPage.class.php
index ce68602..05ed646 100644
--- a/file/lib/page/ChatRefreshRoomListPage.class.php
+++ b/file/lib/page/ChatRefreshRoomListPage.class.php
@@ -14,23 +14,33 @@
  * @subpackage	page
  */
 class ChatRefreshRoomListPage extends AbstractPage {
+	/**
+	 * @see \wcf\page\AbstractPage::$neededModules
+	 */
 	public $neededModules = array('CHAT_ACTIVE');
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$neededPermissions
+	 */
 	public $neededPermissions = array('user.chat.canEnter');
-	public $room = null;
-	public $roomID = 0;
 	public $rooms = array();
+	
+	/**
+	 * @see \wcf\page\AbstractPage::$useTemplate
+	 */
 	public $useTemplate = false;
 	
 	/**
-	 * Reads room data.
+	 * @see	\wcf\page\IPage::readData()
 	 */
 	public function readData() {
 		parent::readData();
-		$this->roomID = \wcf\util\ChatUtil::readUserData('roomID');
+		
 		$this->rooms = chat\room\ChatRoom::getCache();
 		
-		$this->room = $this->rooms->search($this->roomID);
-		if (!$this->room) throw new \wcf\system\exception\IllegalLinkException();
+		$roomID = \wcf\util\ChatUtil::readUserData('roomID');
+		$room = $this->rooms->search($roomID);
+		if (!$room) throw new \wcf\system\exception\IllegalLinkException();
 	}
 	
 	/**