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diff --git a/application/shipsimu/classes/user/extended/class_ShipSimuGuest.php b/application/shipsimu/classes/user/extended/class_ShipSimuGuest.php
new file mode 100644
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+++ b/application/shipsimu/classes/user/extended/class_ShipSimuGuest.php
@@ -0,0 +1,108 @@
+<?php
+/**
+ * A special guest class for Ship-Simu
+ *
+ * @author		Roland Haeder <webmaster@shipsimu.org>
+ * @version		0.0.0
+ * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 Ship-Simu Developer Team
+ * @license		GNU GPL 3.0 or any newer version
+ * @link		http://www.shipsimu.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+class ShipSimuGuest extends ShipSimuBaseUser implements ManageableGuest {
+	// Exceptions
+	const EXCEPTION_USERNAME_NOT_FOUND   = 0x170;
+	const EXCEPTION_USER_EMAIL_NOT_FOUND = 0x171;
+	const EXCEPTION_USER_PASS_MISMATCH   = 0x172;
+
+	/**
+	 * Protected constructor
+	 *
+	 * @param	$className	Name of the class
+	 * @return	void
+	 */
+	protected function __construct ($className = __CLASS__) {
+		// Call parent constructor
+		parent::__construct($className);
+	}
+
+	/**
+	 * Creates an instance of this user class by a provided username. This
+	 * factory method will check if username is already taken and if not
+	 * so it will throw an exception.
+	 *
+	 * @param	$userName		Username we need a class instance for
+	 * @return	$userInstance	An instance of this user class
+	 * @throws	UsernameMissingException	If the username does not exist
+	 */
+	public static final function createGuestByUsername ($userName) {
+		// Get a new instance
+		$userInstance = new ShipSimuGuest();
+
+		// Set the username
+		$userInstance->setUserName($userName);
+
+		// Check if username exists
+		if ($userInstance->ifUsernameExists() === false) {
+			// Throw an exception here
+			throw new UsernameMissingException(array($userInstance, $userName), self::EXCEPTION_USERNAME_NOT_FOUND);
+		} // END - if
+
+		// Return the instance
+		return $userInstance;
+	}
+
+	/**
+	 * Creates an instance of this user class by a provided email address. This
+	 * factory method will not check if email address is there.
+	 *
+	 * @param	$email			Email address of the user
+	 * @return	$userInstance	An instance of this user class
+	 */
+	public static final function createGuestByEmail ($email) {
+		// Get a new instance
+		$userInstance = new ShipSimuGuest();
+
+		// Set the username
+		$userInstance->setEmail($email);
+
+		// Return the instance
+		return $userInstance;
+	}
+
+	/**
+	 * Updates the last activity timestamp and last performed action in the
+	 * database result. You should call flushPendingUpdates() to flush these updates
+	 * to the database layer.
+	 *
+	 * @param	$requestInstance	A requestable class instance
+	 * @return	void
+	 */
+	public function updateLastActivity (Requestable $requestInstance) {
+		// No activity will be logged for guest accounts
+	}
+
+	/**
+	 * Flushs all pending updates to the database layer
+	 *
+	 * @return	void
+	 */
+	public function flushPendingUpdates () {
+		// No updates will be flushed to database!
+	}
+}
+
+// [EOF]
+?>