Merged with latest commit

author: Taufan Aditya <toopay@taufanaditya.com> 2012-03-09 10:56:21 +0100
committer: Taufan Aditya <toopay@taufanaditya.com> 2012-03-09 10:56:21 +0100
commit: b3723ff33ebfd4f4e7822516ecb061613f1bc3d5 (patch)
tree: e55d564db25daa3216c3f3e7ae95e315387d6038 /system/libraries
parent: 4054c56b882ad40495f2d227990d73437af51038 (diff)
parent: 0f2cb79b976086cb73140c25f4c568e865177426 (diff)
31 files changed, 1670 insertions, 2625 deletions
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index c296fa770..2e78a6660 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,26 +18,26 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
- * @filesource	
+ * @filesource
  */
 
 // ------------------------------------------------------------------------
 
 /**
- * CodeIgniter Caching Class 
+ * CodeIgniter Caching Class
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
  * @author		EllisLab Dev Team
- * @link		
+ * @link
  */
 class CI_Cache extends CI_Driver_Library {
-	
+
 	protected $valid_drivers 	= array(
 		'cache_apc', 'cache_file', 'cache_memcached', 'cache_dummy'
 	);
@@ -45,7 +45,7 @@ class CI_Cache extends CI_Driver_Library {
 	protected $_cache_path		= NULL;		// Path of cache files (if file-based cache)
 	protected $_adapter			= 'dummy';
 	protected $_backup_driver;
-	
+
 	// ------------------------------------------------------------------------
 
 	/**
@@ -64,16 +64,16 @@ class CI_Cache extends CI_Driver_Library {
 	// ------------------------------------------------------------------------
 
 	/**
-	 * Get 
+	 * Get
 	 *
-	 * Look for a value in the cache.  If it exists, return the data 
+	 * Look for a value in the cache.  If it exists, return the data
 	 * if not, return FALSE
 	 *
-	 * @param 	string	
+	 * @param 	string
 	 * @return 	mixed		value that is stored/FALSE on failure
 	 */
 	public function get($id)
-	{	
+	{
 		return $this->{$this->_adapter}->get($id);
 	}
 
@@ -124,7 +124,7 @@ class CI_Cache extends CI_Driver_Library {
 	 * Cache Info
 	 *
 	 * @param 	string		user/filehits
-	 * @return 	mixed		array on success, false on failure	
+	 * @return 	mixed		array on success, false on failure
 	 */
 	public function cache_info($type = 'user')
 	{
@@ -132,7 +132,7 @@ class CI_Cache extends CI_Driver_Library {
 	}
 
 	// ------------------------------------------------------------------------
-	
+
 	/**
 	 * Get Cache Metadata
 	 *
@@ -143,7 +143,7 @@ class CI_Cache extends CI_Driver_Library {
 	{
 		return $this->{$this->_adapter}->get_metadata($id);
 	}
-	
+
 	// ------------------------------------------------------------------------
 
 	/**
@@ -151,7 +151,7 @@ class CI_Cache extends CI_Driver_Library {
 	 *
 	 * Initialize class properties based on the configuration array.
 	 *
-	 * @param	array 	
+	 * @param	array
 	 * @return 	void
 	 */
 	private function _initialize($config)
@@ -219,10 +219,10 @@ class CI_Cache extends CI_Driver_Library {
 
 		return $obj;
 	}
-	
+
 	// ------------------------------------------------------------------------
 }
 // End Class
 
 /* End of file Cache.php */
-/* Location: ./system/libraries/Cache/Cache.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Cache/Cache.php */
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index f15cf8501..a3dd46978 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,34 +18,34 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
- * @filesource	
+ * @filesource
  */
 
 // ------------------------------------------------------------------------
 
 /**
- * CodeIgniter APC Caching Class 
+ * CodeIgniter APC Caching Class
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
  * @author		EllisLab Dev Team
- * @link		
+ * @link
  */
 
 class CI_Cache_apc extends CI_Driver {
 
 	/**
-	 * Get 
+	 * Get
 	 *
-	 * Look for a value in the cache.  If it exists, return the data 
+	 * Look for a value in the cache.  If it exists, return the data
 	 * if not, return FALSE
 	 *
-	 * @param 	string	
+	 * @param 	string
 	 * @return 	mixed		value that is stored/FALSE on failure
 	 */
 	public function get($id)
@@ -55,8 +55,8 @@ class CI_Cache_apc extends CI_Driver {
 		return (is_array($data)) ? $data[0] : FALSE;
 	}
 
-	// ------------------------------------------------------------------------	
-	
+	// ------------------------------------------------------------------------
+
 	/**
 	 * Cache Save
 	 *
@@ -68,9 +68,10 @@ class CI_Cache_apc extends CI_Driver {
 	 */
 	public function save($id, $data, $ttl = 60)
 	{
+		$ttl = (int) $ttl;
 		return apc_store($id, array($data, time(), $ttl), $ttl);
 	}
-	
+
 	// ------------------------------------------------------------------------
 
 	/**
@@ -102,7 +103,7 @@ class CI_Cache_apc extends CI_Driver {
 	 * Cache Info
 	 *
 	 * @param 	string		user/filehits
-	 * @return 	mixed		array on success, false on failure	
+	 * @return 	mixed		array on success, false on failure
 	 */
 	 public function cache_info($type = NULL)
 	 {
@@ -149,13 +150,13 @@ class CI_Cache_apc extends CI_Driver {
 			log_message('error', 'The APC PHP extension must be loaded to use APC Cache.');
 			return FALSE;
 		}
-		
+
 		return TRUE;
 	}
 
 	// ------------------------------------------------------------------------
 
-	
+
 }
 // End Class
 
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
index 965bb2bef..fcd55da39 100644
--- a/system/libraries/Cache/drivers/Cache_dummy.php
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
@@ -138,4 +138,4 @@ class CI_Cache_dummy extends CI_Driver {
 // End Class
 
 /* End of file Cache_dummy.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_dummy.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Cache/drivers/Cache_dummy.php */
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index be392d3d2..a960730d7 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,23 +18,23 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
- * @filesource	
+ * @filesource
  */
 
 // ------------------------------------------------------------------------
 
 /**
- * CodeIgniter Memcached Caching Class 
+ * CodeIgniter Memcached Caching Class
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
  * @author		EllisLab Dev Team
- * @link		
+ * @link
  */
 
 class CI_Cache_file extends CI_Driver {
@@ -48,9 +48,7 @@ class CI_Cache_file extends CI_Driver {
 	{
 		$CI =& get_instance();
 		$CI->load->helper('file');
-		
 		$path = $CI->config->item('cache_path');
-	
 		$this->_cache_path = ($path == '') ? APPPATH.'cache/' : $path;
 	}
 
@@ -68,16 +66,15 @@ class CI_Cache_file extends CI_Driver {
 		{
 			return FALSE;
 		}
-		
-		$data = read_file($this->_cache_path.$id);
-		$data = unserialize($data);
-		
+
+		$data = unserialize(read_file($this->_cache_path.$id));
+
 		if (time() >  $data['time'] + $data['ttl'])
 		{
 			unlink($this->_cache_path.$id);
 			return FALSE;
 		}
-		
+
 		return $data['data'];
 	}
 
@@ -88,22 +85,22 @@ class CI_Cache_file extends CI_Driver {
 	 *
 	 * @param 	string		unique key
 	 * @param 	mixed		data to store
-	 * @param 	int			length of time (in seconds) the cache is valid 
+	 * @param 	int			length of time (in seconds) the cache is valid
 	 *						- Default is 60 seconds
 	 * @return 	boolean		true on success/false on failure
 	 */
 	public function save($id, $data, $ttl = 60)
-	{		
+	{
 		$contents = array(
 				'time'		=> time(),
-				'ttl'		=> $ttl,			
+				'ttl'		=> $ttl,
 				'data'		=> $data
 			);
-		
+
 		if (write_file($this->_cache_path.$id, serialize($contents)))
 		{
-			@chmod($this->_cache_path.$id, 0777);
-			return TRUE;			
+			@chmod($this->_cache_path.$id, 0660);
+			return TRUE;
 		}
 
 		return FALSE;
@@ -119,14 +116,7 @@ class CI_Cache_file extends CI_Driver {
 	 */
 	public function delete($id)
 	{
-		if (file_exists($this->_cache_path.$id))
-		{
-			return unlink($this->_cache_path.$id);
-		}
-		else
-		{
-			return FALSE;
-		}
+		return (file_exists($this->_cache_path.$id)) ? unlink($this->_cache_path.$id) : FALSE;
 	}
 
 	// ------------------------------------------------------------------------
@@ -135,7 +125,7 @@ class CI_Cache_file extends CI_Driver {
 	 * Clean the Cache
 	 *
 	 * @return 	boolean		false on failure/true on success
-	 */	
+	 */
 	public function clean()
 	{
 		return delete_files($this->_cache_path);
@@ -170,10 +160,9 @@ class CI_Cache_file extends CI_Driver {
 		{
 			return FALSE;
 		}
-		
-		$data = read_file($this->_cache_path.$id);		
-		$data = unserialize($data);
-		
+
+		$data = unserialize(read_file($this->_cache_path.$id));
+
 		if (is_array($data))
 		{
 			$mtime = filemtime($this->_cache_path.$id);
@@ -188,7 +177,7 @@ class CI_Cache_file extends CI_Driver {
 				'mtime'	 => $mtime
 			);
 		}
-		
+
 		return FALSE;
 	}
 
@@ -198,7 +187,7 @@ class CI_Cache_file extends CI_Driver {
 	 * Is supported
 	 *
 	 * In the file driver, check to see that the cache directory is indeed writable
-	 * 
+	 *
 	 * @return boolean
 	 */
 	public function is_supported()
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index 78cab25d4..ffe6f2ff7 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
@@ -84,7 +84,7 @@ class CI_Cache_memcached extends CI_Driver {
 		{
 			return $this->_memcached->set($id, array($data, time(), $ttl), 0, $ttl);
 		}
-		
+
 		return FALSE;
 	}
 
@@ -256,4 +256,4 @@ class CI_Cache_memcached extends CI_Driver {
 // End Class
 
 /* End of file Cache_memcached.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_memcached.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Cache/drivers/Cache_memcached.php */
diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
index 605765bf6..a05a7babf 100644
--- a/system/libraries/Calendar.php
+++ b/system/libraries/Calendar.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index 01a0cb8ce..10b5362a5 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2006 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -329,13 +329,6 @@ class CI_Cart {
 			return FALSE;
 		}
 
-		// Is the new quantity different than what is already saved in the cart?
-		// If it's the same there's nothing to do
-		if ($this->_cart_contents[$items['rowid']]['qty'] == $items['qty'])
-		{
-			return FALSE;
-		}
-
 		// Is the quantity zero?  If so we will remove the item from the cart.
 		// If the quantity is greater than zero we are updating
 		if ($items['qty'] == 0)
diff --git a/system/libraries/Driver.php b/system/libraries/Driver.php
index 183a95985..4e8944311 100644
--- a/system/libraries/Driver.php
+++ b/system/libraries/Driver.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2006 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -76,7 +76,7 @@ class CI_Driver_Library {
 						if (file_exists($filepath))
 						{
 							include_once $filepath;
-							break;
+							break 2;
 						}
 					}
 				}
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 1066535c7..8d839d0c9 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -18,15 +18,13 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * CodeIgniter Email Class
  *
@@ -40,55 +38,55 @@
  */
 class CI_Email {
 
-	public $useragent		= "CodeIgniter";
-	public $mailpath		= "/usr/sbin/sendmail";	// Sendmail path
-	public $protocol		= "mail";	// mail/sendmail/smtp
-	public $smtp_host		= "";		// SMTP Server.  Example: mail.earthlink.net
-	public $smtp_user		= "";		// SMTP Username
-	public $smtp_pass		= "";		// SMTP Password
-	public $smtp_port		= "25";		// SMTP Port
-	public $smtp_timeout	= 5;		// SMTP Timeout in seconds
-	public $smtp_crypto	= "";		// SMTP Encryption. Can be null, tls or ssl.
-	public $wordwrap		= TRUE;		// TRUE/FALSE  Turns word-wrap on/off
-	public $wrapchars		= "76";		// Number of characters to wrap at.
-	public $mailtype		= "text";	// text/html  Defines email formatting
-	public $charset		= "utf-8";	// Default char set: iso-8859-1 or us-ascii
-	public $multipart		= "mixed";	// "mixed" (in the body) or "related" (separate)
-	public $alt_message	= '';		// Alternative message for HTML emails
-	public $validate		= FALSE;	// TRUE/FALSE.  Enables email validation
-	public $priority		= "3";		// Default priority (1 - 5)
-	public $newline		= "\n";		// Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)
-	public $crlf			= "\n";		// The RFC 2045 compliant CRLF for quoted-printable is "\r\n".  Apparently some servers,
+	public $useragent	= 'CodeIgniter';
+	public $mailpath	= '/usr/sbin/sendmail';	// Sendmail path
+	public $protocol	= 'mail';		// mail/sendmail/smtp
+	public $smtp_host	= '';			// SMTP Server. Example: mail.earthlink.net
+	public $smtp_user	= '';			// SMTP Username
+	public $smtp_pass	= '';			// SMTP Password
+	public $smtp_port	= 25;			// SMTP Port
+	public $smtp_timeout	= 5;			// SMTP Timeout in seconds
+	public $smtp_crypto	= '';			// SMTP Encryption. Can be null, tls or ssl.
+	public $wordwrap	= TRUE;			// TRUE/FALSE  Turns word-wrap on/off
+	public $wrapchars	= 76;			// Number of characters to wrap at.
+	public $mailtype	= 'text';		// text/html  Defines email formatting
+	public $charset		= 'utf-8';		// Default char set: iso-8859-1 or us-ascii
+	public $multipart	= 'mixed';		// "mixed" (in the body) or "related" (separate)
+	public $alt_message	= '';			// Alternative message for HTML emails
+	public $validate	= FALSE;		// TRUE/FALSE.  Enables email validation
+	public $priority	= 3;			// Default priority (1 - 5)
+	public $newline		= "\n";			// Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)
+	public $crlf		= "\n";			// The RFC 2045 compliant CRLF for quoted-printable is "\r\n".  Apparently some servers,
 									// even on the receiving end think they need to muck with CRLFs, so using "\n", while
 									// distasteful, is the only thing that seems to work for all environments.
 	public $send_multipart	= TRUE;		// TRUE/FALSE - Yahoo does not like multipart alternative, so this is an override.  Set to FALSE for Yahoo.
-	public $bcc_batch_mode	= FALSE;	// TRUE/FALSE  Turns on/off Bcc batch feature
+	public $bcc_batch_mode	= FALSE;	// TRUE/FALSE - Turns on/off Bcc batch feature
 	public $bcc_batch_size	= 200;		// If bcc_batch_mode = TRUE, sets max number of Bccs in each batch
-	private $_safe_mode		= FALSE;
-	private $_subject		= "";
-	private $_body			= "";
-	private $_finalbody		= "";
-	private $_alt_boundary	= "";
-	private $_atc_boundary	= "";
-	private $_header_str	= "";
-	private $_smtp_connect	= "";
-	private $_encoding		= "8bit";
-	private $_IP			= FALSE;
-	private $_smtp_auth		= FALSE;
-	private $_replyto_flag	= FALSE;
-	private $_debug_msg		= array();
-	private $_recipients	= array();
-	private $_cc_array		= array();
-	private $_bcc_array		= array();
-	private $_headers		= array();
-	private $_attach_name	= array();
-	private $_attach_type	= array();
-	private $_attach_disp	= array();
-	private $_protocols		= array('mail', 'sendmail', 'smtp');
-	private $_base_charsets	= array('us-ascii', 'iso-2022-');	// 7-bit charsets (excluding language suffix)
-	private $_bit_depths	= array('7bit', '8bit');
-	private $_priorities	= array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)');
 
+	protected $_safe_mode		= FALSE;
+	protected $_subject		= '';
+	protected $_body		= '';
+	protected $_finalbody		= '';
+	protected $_alt_boundary	= '';
+	protected $_atc_boundary	= '';
+	protected $_header_str		= '';
+	protected $_smtp_connect	= '';
+	protected $_encoding		= '8bit';
+	protected $_IP			= FALSE;
+	protected $_smtp_auth		= FALSE;
+	protected $_replyto_flag	= FALSE;
+	protected $_debug_msg		= array();
+	protected $_recipients		= array();
+	protected $_cc_array		= array();
+	protected $_bcc_array		= array();
+	protected $_headers		= array();
+	protected $_attach_name		= array();
+	protected $_attach_type		= array();
+	protected $_attach_disp		= array();
+	protected $_protocols		= array('mail', 'sendmail', 'smtp');
+	protected $_base_charsets	= array('us-ascii', 'iso-2022-');	// 7-bit charsets (excluding language suffix)
+	protected $_bit_depths		= array('7bit', '8bit');
+	protected $_priorities		= array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)');
 
 	/**
 	 * Constructor - Sets Email Preferences
@@ -103,11 +101,11 @@ class CI_Email {
 		}
 		else
 		{
-			$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
-			$this->_safe_mode = (bool) @ini_get("safe_mode");
+			$this->_smtp_auth = ! ($this->smtp_user == '' && $this->smtp_pass == '');
+			$this->_safe_mode = (bool) @ini_get('safe_mode');
 		}
 
-		log_message('debug', "Email Class Initialized");
+		log_message('debug', 'Email Class Initialized');
 	}
 
 	// --------------------------------------------------------------------
@@ -115,7 +113,6 @@ class CI_Email {
 	/**
 	 * Initialize preferences
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	void
 	 */
@@ -139,8 +136,8 @@ class CI_Email {
 		}
 		$this->clear();
 
-		$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
-		$this->_safe_mode = (bool) @ini_get("safe_mode");
+		$this->_smtp_auth = ! ($this->smtp_user == '' && $this->smtp_pass == '');
+		$this->_safe_mode = (bool) @ini_get('safe_mode');
 
 		return $this;
 	}
@@ -150,17 +147,16 @@ class CI_Email {
 	/**
 	 * Initialize the Email Data
 	 *
-	 * @access	public
 	 * @param	bool
-	 * @return	void
+	 * @return	object
 	 */
 	public function clear($clear_attachments = FALSE)
 	{
-		$this->_subject		= "";
-		$this->_body		= "";
-		$this->_finalbody	= "";
-		$this->_header_str	= "";
-		$this->_replyto_flag = FALSE;
+		$this->_subject		= '';
+		$this->_body		= '';
+		$this->_finalbody	= '';
+		$this->_header_str	= '';
+		$this->_replyto_flag	= FALSE;
 		$this->_recipients	= array();
 		$this->_cc_array	= array();
 		$this->_bcc_array	= array();
@@ -185,14 +181,13 @@ class CI_Email {
 	/**
 	 * Set FROM
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function from($from, $name = '')
 	{
-		if (preg_match( '/\<(.*)\>/', $from, $match))
+		if (preg_match('/\<(.*)\>/', $from, $match))
 		{
 			$from = $match[1];
 		}
@@ -228,14 +223,13 @@ class CI_Email {
 	/**
 	 * Set Reply-to
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function reply_to($replyto, $name = '')
 	{
-		if (preg_match( '/\<(.*)\>/', $replyto, $match))
+		if (preg_match('/\<(.*)\>/', $replyto, $match))
 		{
 			$replyto = $match[1];
 		}
@@ -266,9 +260,8 @@ class CI_Email {
 	/**
 	 * Set Recipients
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function to($to)
 	{
@@ -282,17 +275,17 @@ class CI_Email {
 
 		if ($this->_get_protocol() !== 'mail')
 		{
-			$this->_set_header('To', implode(", ", $to));
+			$this->_set_header('To', implode(', ', $to));
 		}
 
 		switch ($this->_get_protocol())
 		{
-			case 'smtp'		:
+			case 'smtp':
 				$this->_recipients = $to;
 			break;
-			case 'sendmail'	:
-			case 'mail'		:
-				$this->_recipients = implode(", ", $to);
+			case 'sendmail':
+			case 'mail':
+				$this->_recipients = implode(', ', $to);
 			break;
 		}
 
@@ -304,9 +297,8 @@ class CI_Email {
 	/**
 	 * Set CC
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function cc($cc)
 	{
@@ -318,7 +310,7 @@ class CI_Email {
 			$this->validate_email($cc);
 		}
 
-		$this->_set_header('Cc', implode(", ", $cc));
+		$this->_set_header('Cc', implode(', ', $cc));
 
 		if ($this->_get_protocol() === 'smtp')
 		{
@@ -333,10 +325,9 @@ class CI_Email {
 	/**
 	 * Set BCC
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function bcc($bcc, $limit = '')
 	{
@@ -360,7 +351,7 @@ class CI_Email {
 		}
 		else
 		{
-			$this->_set_header('Bcc', implode(", ", $bcc));
+			$this->_set_header('Bcc', implode(', ', $bcc));
 		}
 
 		return $this;
@@ -371,9 +362,8 @@ class CI_Email {
 	/**
 	 * Set Email Subject
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function subject($subject)
 	{
@@ -387,13 +377,12 @@ class CI_Email {
 	/**
 	 * Set Body
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function message($body)
 	{
-		$this->_body = rtrim(str_replace("\r", "", $body));
+		$this->_body = rtrim(str_replace("\r", '', $body));
 
 		/* strip slashes only if magic quotes is ON
 		   if we do it with magic quotes OFF, it strips real, user-inputted chars.
@@ -414,9 +403,8 @@ class CI_Email {
 	/**
 	 * Assign file attachments
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function attach($filename, $disposition = '', $newname = NULL)
 	{
@@ -431,7 +419,6 @@ class CI_Email {
 	/**
 	 * Add a Header Item
 	 *
-	 * @access	protected
 	 * @param	string
 	 * @param	string
 	 * @return	void
@@ -446,7 +433,6 @@ class CI_Email {
 	/**
 	 * Convert a String to an Array
 	 *
-	 * @access	protected
 	 * @param	string
 	 * @return	array
 	 */
@@ -460,8 +446,7 @@ class CI_Email {
 			}
 			else
 			{
-				$email = trim($email);
-				settype($email, "array");
+				$email = (array) trim($email);
 			}
 		}
 		return $email;
@@ -472,9 +457,8 @@ class CI_Email {
 	/**
 	 * Set Multipart Value
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function set_alt_message($str = '')
 	{
@@ -487,9 +471,8 @@ class CI_Email {
 	/**
 	 * Set Mailtype
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function set_mailtype($type = 'text')
 	{
@@ -502,9 +485,8 @@ class CI_Email {
 	/**
 	 * Set Wordwrap
 	 *
-	 * @access	public
 	 * @param	bool
-	 * @return	void
+	 * @return	object
 	 */
 	public function set_wordwrap($wordwrap = TRUE)
 	{
@@ -517,13 +499,12 @@ class CI_Email {
 	/**
 	 * Set Protocol
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function set_protocol($protocol = 'mail')
 	{
-		$this->protocol = ( ! in_array($protocol, $this->_protocols, TRUE)) ? 'mail' : strtolower($protocol);
+		$this->protocol = in_array($protocol, $this->_protocols, TRUE) ? strtolower($protocol) : 'mail';
 		return $this;
 	}
 
@@ -532,19 +513,12 @@ class CI_Email {
 	/**
 	 * Set Priority
 	 *
-	 * @access	public
-	 * @param	integer
-	 * @return	void
+	 * @param	int
+	 * @return	object
 	 */
 	public function set_priority($n = 3)
 	{
-		if ( ! is_numeric($n) OR $n < 1 OR $n > 5)
-		{
-			$this->priority = 3;
-			return;
-		}
-
-		$this->priority = (int) $n;
+		$this->priority = preg_match('/^[1-5]$/', $n) ? (int) $n : 3;
 		return $this;
 	}
 
@@ -553,9 +527,8 @@ class CI_Email {
 	/**
 	 * Set Newline Character
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function set_newline($newline = "\n")
 	{
@@ -568,13 +541,12 @@ class CI_Email {
 	/**
 	 * Set CRLF
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
 	public function set_crlf($crlf = "\n")
 	{
-		$this->crlf = ($crlf !== "\n" AND $crlf !== "\r\n" AND $crlf !== "\r") ? "\n" : $crlf;
+		$this->crlf = ($crlf !== "\n" && $crlf !== "\r\n" && $crlf !== "\r") ? "\n" : $crlf;
 		return $this;
 	}
 
@@ -583,13 +555,12 @@ class CI_Email {
 	/**
 	 * Set Message Boundary
 	 *
-	 * @access	protected
 	 * @return	void
 	 */
 	protected function _set_boundaries()
 	{
-		$this->_alt_boundary = "B_ALT_".uniqid(''); // multipart/alternative
-		$this->_atc_boundary = "B_ATC_".uniqid(''); // attachment boundary
+		$this->_alt_boundary = 'B_ALT_'.uniqid(''); // multipart/alternative
+		$this->_atc_boundary = 'B_ATC_'.uniqid(''); // attachment boundary
 	}
 
 	// --------------------------------------------------------------------
@@ -597,14 +568,12 @@ class CI_Email {
 	/**
 	 * Get the Message ID
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_message_id()
 	{
 		$from = str_replace(array('>', '<'), '', $this->_headers['Return-Path']);
-
-		return  "<".uniqid('').strstr($from, '@').">";
+		return  '<'.uniqid('').strstr($from, '@').'>';
 	}
 
 	// --------------------------------------------------------------------
@@ -612,14 +581,13 @@ class CI_Email {
 	/**
 	 * Get Mail Protocol
 	 *
-	 * @access	protected
 	 * @param	bool
-	 * @return	string
+	 * @return	mixed
 	 */
 	protected function _get_protocol($return = TRUE)
 	{
 		$this->protocol = strtolower($this->protocol);
-		$this->protocol = ( ! in_array($this->protocol, $this->_protocols, TRUE)) ? 'mail' : $this->protocol;
+		in_array($this->protocol, $this->_protocols, TRUE) OR $this->protocol = 'mail';
 
 		if ($return == TRUE)
 		{
@@ -632,13 +600,12 @@ class CI_Email {
 	/**
 	 * Get Mail Encoding
 	 *
-	 * @access	protected
 	 * @param	bool
 	 * @return	string
 	 */
 	protected function _get_encoding($return = TRUE)
 	{
-		$this->_encoding = ( ! in_array($this->_encoding, $this->_bit_depths)) ? '8bit' : $this->_encoding;
+		in_array($this->_encoding, $this->_bit_depths) OR $this->_encoding = '8bit';
 
 		foreach ($this->_base_charsets as $charset)
 		{
@@ -659,7 +626,6 @@ class CI_Email {
 	/**
 	 * Get content type (text/html/attachment)
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_content_type()
@@ -687,17 +653,16 @@ class CI_Email {
 	/**
 	 * Set RFC 822 Date
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _set_date()
 	{
-		$timezone = date("Z");
+		$timezone = date('Z');
 		$operator = (strncmp($timezone, '-', 1) === 0) ? '-' : '+';
 		$timezone = abs($timezone);
 		$timezone = floor($timezone/3600) * 100 + ($timezone % 3600) / 60;
 
-		return sprintf("%s %s%04d", date("D, j M Y H:i:s"), $operator, $timezone);
+		return sprintf('%s %s%04d', date('D, j M Y H:i:s'), $operator, $timezone);
 	}
 
 	// --------------------------------------------------------------------
@@ -705,12 +670,11 @@ class CI_Email {
 	/**
 	 * Mime message
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_mime_message()
 	{
-		return "This is a multi-part message in MIME format.".$this->newline."Your email application may not support this format.";
+		return 'This is a multi-part message in MIME format.'.$this->newline.'Your email application may not support this format.';
 	}
 
 	// --------------------------------------------------------------------
@@ -718,7 +682,6 @@ class CI_Email {
 	/**
 	 * Validate Email Address
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -747,13 +710,12 @@ class CI_Email {
 	/**
 	 * Email Validation
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function valid_email($address)
 	{
-		return (bool) preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $address);
+		return (bool) preg_match('/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix', $address);
 	}
 
 	// --------------------------------------------------------------------
@@ -761,7 +723,6 @@ class CI_Email {
 	/**
 	 * Clean Extended Email Address: Joe Smith <joe@smith.com>
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -776,7 +737,7 @@ class CI_Email {
 
 		foreach ($email as $addy)
 		{
-			$clean_email[] = (preg_match( '/\<(.*)\>/', $addy, $match)) ? $match[1] : $addy;
+			$clean_email[] = preg_match('/\<(.*)\>/', $addy, $match) ? $match[1] : $addy;
 		}
 
 		return $clean_email;
@@ -792,12 +753,11 @@ class CI_Email {
 	 * If the user hasn't specified his own alternative message
 	 * it creates one by stripping the HTML
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_alt_message()
 	{
-		if ($this->alt_message != "")
+		if ($this->alt_message != '')
 		{
 			return $this->word_wrap($this->alt_message, '76');
 		}
@@ -818,9 +778,8 @@ class CI_Email {
 	/**
 	 * Word Wrap
 	 *
-	 * @access	public
 	 * @param	string
-	 * @param	integer
+	 * @param	int
 	 * @return	string
 	 */
 	public function word_wrap($str, $charlim = '')
@@ -911,8 +870,6 @@ class CI_Email {
 	/**
 	 * Build final headers
 	 *
-	 * @access	protected
-	 * @param	string
 	 * @return	string
 	 */
 	protected function _build_headers()
@@ -929,7 +886,6 @@ class CI_Email {
 	/**
 	 * Write Headers as a string
 	 *
-	 * @access	protected
 	 * @return	void
 	 */
 	protected function _write_headers()
@@ -964,12 +920,11 @@ class CI_Email {
 	/**
 	 * Build Final Body and attachments
 	 *
-	 * @access	protected
 	 * @return	void
 	 */
 	protected function _build_message()
 	{
-		if ($this->wordwrap === TRUE AND $this->mailtype !== 'html')
+		if ($this->wordwrap === TRUE && $this->mailtype !== 'html')
 		{
 			$this->_body = $this->word_wrap($this->_body);
 		}
@@ -1131,9 +1086,8 @@ class CI_Email {
 	 * Prepares string for Quoted-Printable Content-Transfer-Encoding
 	 * Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt
 	 *
-	 * @access	protected
 	 * @param	string
-	 * @param	integer
+	 * @param	int
 	 * @return	string
 	 */
 	protected function _prep_quoted_printable($str, $charlim = '')
@@ -1203,9 +1157,7 @@ class CI_Email {
 		}
 
 		// get rid of extra CRLF tacked onto the end
-		$output = substr($output, 0, strlen($this->crlf) * -1);
-
-		return $output;
+		return substr($output, 0, strlen($this->crlf) * -1);
 	}
 
 	// --------------------------------------------------------------------
@@ -1216,10 +1168,9 @@ class CI_Email {
 	 * Performs "Q Encoding" on a string for use in email headers.  It's related
 	 * but not identical to quoted-printable, so it has its own method
 	 *
-	 * @access	public
-	 * @param	str
-	 * @param	bool	// set to TRUE for processing From: headers
-	 * @return	str
+	 * @param	string
+	 * @param	bool	set to TRUE for processing From: headers
+	 * @return	string
 	 */
 	protected function _prep_q_encoding($str, $from = FALSE)
 	{
@@ -1275,9 +1226,7 @@ class CI_Email {
 
 		// wrap each line with the shebang, charset, and transfer encoding
 		// the preceding space on successive lines is required for header "folding"
-		$str = trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $str));
-
-		return $str;
+		return trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $str));
 	}
 
 	// --------------------------------------------------------------------
@@ -1285,7 +1234,6 @@ class CI_Email {
 	/**
 	 * Send Email
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function send()
@@ -1295,9 +1243,9 @@ class CI_Email {
 			$this->reply_to($this->_headers['From']);
 		}
 
-		if (( ! isset($this->_recipients) AND ! isset($this->_headers['To']))  AND
-			( ! isset($this->_bcc_array) AND ! isset($this->_headers['Bcc'])) AND
-			( ! isset($this->_headers['Cc'])))
+		if ( ! isset($this->_recipients) && ! isset($this->_headers['To'])
+			&& ! isset($this->_bcc_array) && ! isset($this->_headers['Bcc'])
+			&& ! isset($this->_headers['Cc']))
 		{
 			$this->_set_error_message('lang:email_no_recipients');
 			return FALSE;
@@ -1305,44 +1253,40 @@ class CI_Email {
 
 		$this->_build_headers();
 
-		if ($this->bcc_batch_mode AND count($this->_bcc_array) > $this->bcc_batch_size)
+		if ($this->bcc_batch_mode && count($this->_bcc_array) > $this->bcc_batch_size)
 		{
 			return $this->batch_bcc_send();
 		}
 
 		$this->_build_message();
-
 		return $this->_spool_email();
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Batch Bcc Send.  Sends groups of BCCs in batches
+	 * Batch Bcc Send. Sends groups of BCCs in batches
 	 *
-	 * @access	public
-	 * @return	bool
+	 * @return	void
 	 */
 	public function batch_bcc_send()
 	{
-		$float = $this->bcc_batch_size -1;
-
-		$set = "";
-
+		$float = $this->bcc_batch_size - 1;
+		$set = '';
 		$chunk = array();
 
 		for ($i = 0, $c = count($this->_bcc_array); $i < $c; $i++)
 		{
 			if (isset($this->_bcc_array[$i]))
 			{
-				$set .= ", ".$this->_bcc_array[$i];
+				$set .= ', '.$this->_bcc_array[$i];
 			}
 
 			if ($i == $float)
 			{
 				$chunk[] = substr($set, 1);
 				$float += $this->bcc_batch_size;
-				$set = "";
+				$set = '';
 			}
 
 			if ($i === $c-1)
@@ -1359,7 +1303,7 @@ class CI_Email {
 
 			if ($this->protocol !== 'smtp')
 			{
-				$this->_set_header('Bcc', implode(", ", $bcc));
+				$this->_set_header('Bcc', implode(', ', $bcc));
 			}
 			else
 			{
@@ -1376,7 +1320,6 @@ class CI_Email {
 	/**
 	 * Unwrap special elements
 	 *
-	 * @access	protected
 	 * @return	void
 	 */
 	protected function _unwrap_specials()
@@ -1389,7 +1332,6 @@ class CI_Email {
 	/**
 	 * Strip line-breaks via callback
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _remove_nl_callback($matches)
@@ -1407,7 +1349,6 @@ class CI_Email {
 	/**
 	 * Spool mail to the mail server
 	 *
-	 * @access	protected
 	 * @return	bool
 	 */
 	protected function _spool_email()
@@ -1418,6 +1359,7 @@ class CI_Email {
 		if ( ! $this->$method())
 		{
 			$this->_set_error_message('lang:email_send_failure_' . ($this->_get_protocol() === 'mail' ? 'phpmail' : $this->_get_protocol()));
+			return FALSE;
 		}
 
 		$this->_set_error_message('lang:email_sent', $this->_get_protocol());
@@ -1429,7 +1371,6 @@ class CI_Email {
 	/**
 	 * Send using mail()
 	 *
-	 * @access	protected
 	 * @return	bool
 	 */
 	protected function _send_with_mail()
@@ -1451,7 +1392,6 @@ class CI_Email {
 	/**
 	 * Send using Sendmail
 	 *
-	 * @access	protected
 	 * @return	bool
 	 */
 	protected function _send_with_sendmail()
@@ -1484,7 +1424,6 @@ class CI_Email {
 	/**
 	 * Send using SMTP
 	 *
-	 * @access	protected
 	 * @return	bool
 	 */
 	protected function _send_with_smtp()
@@ -1495,8 +1434,10 @@ class CI_Email {
 			return FALSE;
 		}
 
-		$this->_smtp_connect();
-		$this->_smtp_authenticate();
+		if ( ! $this->_smtp_connect() OR ! $this->_smtp_authenticate())
+		{
+			return FALSE;
+		}
 
 		$this->_send_command('from', $this->clean_email($this->_headers['From']));
 
@@ -1553,7 +1494,6 @@ class CI_Email {
 	/**
 	 * SMTP Connect
 	 *
-	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
@@ -1597,7 +1537,6 @@ class CI_Email {
 	/**
 	 * Send SMTP command
 	 *
-	 * @access	protected
 	 * @param	string
 	 * @param	string
 	 * @return	string
@@ -1670,7 +1609,6 @@ class CI_Email {
 	/**
 	 *  SMTP Authenticate
 	 *
-	 * @access	protected
 	 * @return	bool
 	 */
 	protected function _smtp_authenticate()
@@ -1680,7 +1618,7 @@ class CI_Email {
 			return TRUE;
 		}
 
-		if ($this->smtp_user == ""  AND  $this->smtp_pass == "")
+		if ($this->smtp_user == '' && $this->smtp_pass == '')
 		{
 			$this->_set_error_message('lang:email_no_smtp_unpw');
 			return FALSE;
@@ -1724,7 +1662,6 @@ class CI_Email {
 	/**
 	 * Send SMTP data
 	 *
-	 * @access	protected
 	 * @return	bool
 	 */
 	protected function _send_data($data)
@@ -1743,7 +1680,6 @@ class CI_Email {
 	/**
 	 * Get SMTP data
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_smtp_data()
@@ -1768,12 +1704,11 @@ class CI_Email {
 	/**
 	 * Get Hostname
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_hostname()
 	{
-		return (isset($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';
+		return isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';
 	}
 
 	// --------------------------------------------------------------------
@@ -1781,7 +1716,6 @@ class CI_Email {
 	/**
 	 * Get IP
 	 *
-	 * @access	protected
 	 * @return	string
 	 */
 	protected function _get_ip()
@@ -1791,13 +1725,13 @@ class CI_Email {
 			return $this->_IP;
 		}
 
-		$cip = (isset($_SERVER['HTTP_CLIENT_IP']) AND $_SERVER['HTTP_CLIENT_IP'] != "") ? $_SERVER['HTTP_CLIENT_IP'] : FALSE;
-		$rip = (isset($_SERVER['REMOTE_ADDR']) AND $_SERVER['REMOTE_ADDR'] != "") ? $_SERVER['REMOTE_ADDR'] : FALSE;
+		$cip = ( ! empty($_SERVER['HTTP_CLIENT_IP'])) ? $_SERVER['HTTP_CLIENT_IP'] : FALSE;
+		$rip = ( ! empty($_SERVER['REMOTE_ADDR'])) ? $_SERVER['REMOTE_ADDR'] : FALSE;
 		if ($cip) $this->_IP = $cip;
 		elseif ($rip) $this->_IP = $rip;
 		else
 		{
-			$fip = (isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND $_SERVER['HTTP_X_FORWARDED_FOR'] != "") ? $_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE;
+			$fip = ( ! empty($_SERVER['HTTP_X_FORWARDED_FOR'])) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE;
 			if ($fip)
 			{
 				$this->_IP = $fip;
@@ -1810,7 +1744,7 @@ class CI_Email {
 			$this->_IP = end($x);
 		}
 
-		if ( ! preg_match( "/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/", $this->_IP))
+		if ( ! preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/', $this->_IP))
 		{
 			$this->_IP = '0.0.0.0';
 		}
@@ -1823,7 +1757,6 @@ class CI_Email {
 	/**
 	 * Get Debug Message
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function print_debugger()
@@ -1838,8 +1771,7 @@ class CI_Email {
 			}
 		}
 
-		$msg .= "<pre>".$this->_header_str."\n".htmlspecialchars($this->_subject)."\n".htmlspecialchars($this->_finalbody).'</pre>';
-		return $msg;
+		return $msg.'<pre>'.$this->_header_str."\n".htmlspecialchars($this->_subject)."\n".htmlspecialchars($this->_finalbody).'</pre>';
 	}
 
 	// --------------------------------------------------------------------
@@ -1847,16 +1779,15 @@ class CI_Email {
 	/**
 	 * Set Message
 	 *
-	 * @access	protected
 	 * @param	string
-	 * @return	string
+	 * @return	void
 	 */
 	protected function _set_error_message($msg, $val = '')
 	{
 		$CI =& get_instance();
 		$CI->lang->load('email');
 
-		if (substr($msg, 0, 5) !== 'lang:' || FALSE === ($line = $CI->lang->line(substr($msg, 5))))
+		if (substr($msg, 0, 5) !== 'lang:' OR FALSE === ($line = $CI->lang->line(substr($msg, 5))))
 		{
 			$this->_debug_msg[] = str_replace('%s', $val, $msg)."<br />";
 		}
@@ -1871,13 +1802,13 @@ class CI_Email {
 	/**
 	 * Mime Types
 	 *
-	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	protected function _mime_types($ext = "")
+	protected function _mime_types($ext = '')
 	{
-		$mimes = array(	'hqx'	=>	'application/mac-binhex40',
+		$mimes = array(
+						'hqx'	=>	'application/mac-binhex40',
 						'cpt'	=>	'application/mac-compactpro',
 						'doc'	=>	'application/msword',
 						'bin'	=>	'application/macbinary',
@@ -1966,11 +1897,10 @@ class CI_Email {
 						'eml'	=>	'message/rfc822'
 					);
 
-		return ( ! isset($mimes[strtolower($ext)])) ? "application/x-unknown-content-type" : $mimes[strtolower($ext)];
+		return isset($mimes[strtolower($ext)]) ? $mimes[strtolower($ext)] : 'application/x-unknown-content-type';
 	}
 
 }
-// END CI_Email class
 
 /* End of file Email.php */
 /* Location: ./system/libraries/Email.php */
diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index c2cb808dd..0b0618991 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,15 +18,13 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * CodeIgniter Encryption Class
  *
@@ -40,24 +38,16 @@
  */
 class CI_Encrypt {
 
-	var $CI;
-	var $encryption_key	= '';
-	var $_hash_type	= 'sha1';
-	var $_mcrypt_exists = FALSE;
-	var $_mcrypt_cipher;
-	var $_mcrypt_mode;
+	public $encryption_key	= '';
+	protected $_hash_type	= 'sha1';
+	protected $_mcrypt_exists = FALSE;
+	protected $_mcrypt_cipher;
+	protected $_mcrypt_mode;
 
-	/**
-	 * Constructor
-	 *
-	 * Simply determines whether the mcrypt library exists.
-	 *
-	 */
 	public function __construct()
 	{
-		$this->CI =& get_instance();
 		$this->_mcrypt_exists = ( ! function_exists('mcrypt_encrypt')) ? FALSE : TRUE;
-		log_message('debug', "Encrypt Class Initialized");
+		log_message('debug', 'Encrypt Class Initialized');
 	}
 
 	// --------------------------------------------------------------------
@@ -68,11 +58,10 @@ class CI_Encrypt {
 	 * Returns it as MD5 in order to have an exact-length 128 bit key.
 	 * Mcrypt is sensitive to keys that are not the correct length
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
-	function get_key($key = '')
+	public function get_key($key = '')
 	{
 		if ($key == '')
 		{
@@ -84,7 +73,7 @@ class CI_Encrypt {
 			$CI =& get_instance();
 			$key = $CI->config->item('encryption_key');
 
-			if ($key == FALSE)
+			if ($key === FALSE)
 			{
 				show_error('In order to use the encryption class requires that you set an encryption key in your config file.');
 			}
@@ -98,13 +87,13 @@ class CI_Encrypt {
 	/**
 	 * Set the encryption key
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	void
+	 * @return	object
 	 */
-	function set_key($key = '')
+	public function set_key($key = '')
 	{
 		$this->encryption_key = $key;
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -120,25 +109,14 @@ class CI_Encrypt {
 	 * that is randomized with each call to this function,
 	 * even if the supplied message and key are the same.
 	 *
-	 * @access	public
 	 * @param	string	the string to encode
 	 * @param	string	the key
 	 * @return	string
 	 */
-	function encode($string, $key = '')
+	public function encode($string, $key = '')
 	{
-		$key = $this->get_key($key);
-
-		if ($this->_mcrypt_exists === TRUE)
-		{
-			$enc = $this->mcrypt_encode($string, $key);
-		}
-		else
-		{
-			$enc = $this->_xor_encode($string, $key);
-		}
-
-		return base64_encode($enc);
+		$method = ($this->_mcrypt_exists === TRUE) ? 'mcrypt_encode' : '_xor_encode';
+		return base64_encode($this->$method($string, $this->get_key($key)));
 	}
 
 	// --------------------------------------------------------------------
@@ -148,35 +126,19 @@ class CI_Encrypt {
 	 *
 	 * Reverses the above process
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function decode($string, $key = '')
+	public function decode($string, $key = '')
 	{
-		$key = $this->get_key($key);
-
 		if (preg_match('/[^a-zA-Z0-9\/\+=]/', $string))
 		{
 			return FALSE;
 		}
 
-		$dec = base64_decode($string);
-
-		if ($this->_mcrypt_exists === TRUE)
-		{
-			if (($dec = $this->mcrypt_decode($dec, $key)) === FALSE)
-			{
-				return FALSE;
-			}
-		}
-		else
-		{
-			$dec = $this->_xor_decode($dec, $key);
-		}
-
-		return $dec;
+		$method = ($this->_mcrypt_exists === TRUE) ? 'mcrypt_decode' : '_xor_decode';
+		return $this->$method(base64_decode($string), $this->get_key($key));
 	}
 
 	// --------------------------------------------------------------------
@@ -191,19 +153,22 @@ class CI_Encrypt {
 	 *
 	 * For more details, see http://codeigniter.com/user_guide/installation/upgrade_200.html#encryption
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	int		(mcrypt mode constant)
 	 * @param	string
 	 * @return	string
 	 */
-	function encode_from_legacy($string, $legacy_mode = MCRYPT_MODE_ECB, $key = '')
+	public function encode_from_legacy($string, $legacy_mode = MCRYPT_MODE_ECB, $key = '')
 	{
 		if ($this->_mcrypt_exists === FALSE)
 		{
 			log_message('error', 'Encoding from legacy is available only when Mcrypt is in use.');
 			return FALSE;
 		}
+		elseif (preg_match('/[^a-zA-Z0-9\/\+=]/', $string))
+		{
+			return FALSE;
+		}
 
 		// decode it first
 		// set mode temporarily to what it was when string was encoded with the legacy
@@ -212,14 +177,7 @@ class CI_Encrypt {
 		$this->set_mode($legacy_mode);
 
 		$key = $this->get_key($key);
-
-		if (preg_match('/[^a-zA-Z0-9\/\+=]/', $string))
-		{
-			return FALSE;
-		}
-
 		$dec = base64_decode($string);
-
 		if (($dec = $this->mcrypt_decode($dec, $key)) === FALSE)
 		{
 			return FALSE;
@@ -242,25 +200,25 @@ class CI_Encrypt {
 	 * Takes a plain-text string and key as input and generates an
 	 * encoded bit-string using XOR
 	 *
-	 * @access	private
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function _xor_encode($string, $key)
+	protected function _xor_encode($string, $key)
 	{
 		$rand = '';
-		while (strlen($rand) < 32)
+		do
 		{
 			$rand .= mt_rand(0, mt_getrandmax());
 		}
+		while (strlen($rand) < 32);
 
 		$rand = $this->hash($rand);
 
 		$enc = '';
-		for ($i = 0; $i < strlen($string); $i++)
+		for ($i = 0, $ls = strlen($string), $lr = strlen($rand); $i < $ls; $i++)
 		{
-			$enc .= substr($rand, ($i % strlen($rand)), 1).(substr($rand, ($i % strlen($rand)), 1) ^ substr($string, $i, 1));
+			$enc .= $rand[($i % $lr)].($rand[($i % $lr)] ^ $string[$i]);
 		}
 
 		return $this->_xor_merge($enc, $key);
@@ -274,19 +232,18 @@ class CI_Encrypt {
 	 * Takes an encoded string and key as input and generates the
 	 * plain-text original message
 	 *
-	 * @access	private
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function _xor_decode($string, $key)
+	protected function _xor_decode($string, $key)
 	{
 		$string = $this->_xor_merge($string, $key);
 
 		$dec = '';
-		for ($i = 0; $i < strlen($string); $i++)
+		for ($i = 0, $l = strlen($string); $i < $l; $i++)
 		{
-			$dec .= (substr($string, $i++, 1) ^ substr($string, $i, 1));
+			$dec .= ($string[$i++] ^ $string[$i]);
 		}
 
 		return $dec;
@@ -299,18 +256,17 @@ class CI_Encrypt {
 	 *
 	 * Takes a string and key as input and computes the difference using XOR
 	 *
-	 * @access	private
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function _xor_merge($string, $key)
+	protected function _xor_merge($string, $key)
 	{
 		$hash = $this->hash($key);
 		$str = '';
-		for ($i = 0; $i < strlen($string); $i++)
+		for ($i = 0, $ls = strlen($string), $lh = strlen($hash); $i < $ls; $i++)
 		{
-			$str .= substr($string, $i, 1) ^ substr($hash, ($i % strlen($hash)), 1);
+			$str .= $string[$i] ^ $hash[($i % $lh)];
 		}
 
 		return $str;
@@ -321,12 +277,11 @@ class CI_Encrypt {
 	/**
 	 * Encrypt using Mcrypt
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function mcrypt_encode($data, $key)
+	public function mcrypt_encode($data, $key)
 	{
 		$init_size = mcrypt_get_iv_size($this->_get_cipher(), $this->_get_mode());
 		$init_vect = mcrypt_create_iv($init_size, MCRYPT_RAND);
@@ -338,12 +293,11 @@ class CI_Encrypt {
 	/**
 	 * Decrypt using Mcrypt
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function mcrypt_decode($data, $key)
+	public function mcrypt_decode($data, $key)
 	{
 		$data = $this->_remove_cipher_noise($data, $key);
 		$init_size = mcrypt_get_iv_size($this->_get_cipher(), $this->_get_mode());
@@ -365,27 +319,23 @@ class CI_Encrypt {
 	 * against Man-in-the-middle attacks on CBC mode ciphers
 	 * http://www.ciphersbyritter.com/GLOSSARY.HTM#IV
 	 *
-	 * Function description
-	 *
-	 * @access	private
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	function _add_cipher_noise($data, $key)
+	protected function _add_cipher_noise($data, $key)
 	{
-		$keyhash = $this->hash($key);
-		$keylen = strlen($keyhash);
+		$key = $this->hash($key);
 		$str = '';
 
-		for ($i = 0, $j = 0, $len = strlen($data); $i < $len; ++$i, ++$j)
+		for ($i = 0, $j = 0, $ld = strlen($data), $lk = strlen($key); $i < $ld; ++$i, ++$j)
 		{
-			if ($j >= $keylen)
+			if ($j >= $lk)
 			{
 				$j = 0;
 			}
 
-			$str .= chr((ord($data[$i]) + ord($keyhash[$j])) % 256);
+			$str .= chr((ord($data[$i]) + ord($key[$j])) % 256);
 		}
 
 		return $str;
@@ -399,28 +349,26 @@ class CI_Encrypt {
 	 *
 	 * Function description
 	 *
-	 * @access	public
 	 * @param	type
 	 * @return	type
 	 */
-	function _remove_cipher_noise($data, $key)
+	protected function _remove_cipher_noise($data, $key)
 	{
-		$keyhash = $this->hash($key);
-		$keylen = strlen($keyhash);
+		$key = $this->hash($key);
 		$str = '';
 
-		for ($i = 0, $j = 0, $len = strlen($data); $i < $len; ++$i, ++$j)
+		for ($i = 0, $j = 0, $ld = strlen($data), $lk = strlen($key); $i < $ld; ++$i, ++$j)
 		{
-			if ($j >= $keylen)
+			if ($j >= $lk)
 			{
 				$j = 0;
 			}
 
-			$temp = ord($data[$i]) - ord($keyhash[$j]);
+			$temp = ord($data[$i]) - ord($key[$j]);
 
 			if ($temp < 0)
 			{
-				$temp = $temp + 256;
+				$temp += 256;
 			}
 
 			$str .= chr($temp);
@@ -434,13 +382,13 @@ class CI_Encrypt {
 	/**
 	 * Set the Mcrypt Cipher
 	 *
-	 * @access	public
 	 * @param	constant
 	 * @return	string
 	 */
-	function set_cipher($cipher)
+	public function set_cipher($cipher)
 	{
 		$this->_mcrypt_cipher = $cipher;
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -448,13 +396,13 @@ class CI_Encrypt {
 	/**
 	 * Set the Mcrypt Mode
 	 *
-	 * @access	public
 	 * @param	constant
 	 * @return	string
 	 */
-	function set_mode($mode)
+	public function set_mode($mode)
 	{
 		$this->_mcrypt_mode = $mode;
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -462,14 +410,13 @@ class CI_Encrypt {
 	/**
 	 * Get Mcrypt cipher Value
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _get_cipher()
+	protected function _get_cipher()
 	{
 		if ($this->_mcrypt_cipher == '')
 		{
-			$this->_mcrypt_cipher = MCRYPT_RIJNDAEL_256;
+			return $this->_mcrypt_cipher = MCRYPT_RIJNDAEL_256;
 		}
 
 		return $this->_mcrypt_cipher;
@@ -480,14 +427,13 @@ class CI_Encrypt {
 	/**
 	 * Get Mcrypt Mode Value
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _get_mode()
+	protected function _get_mode()
 	{
 		if ($this->_mcrypt_mode == '')
 		{
-			$this->_mcrypt_mode = MCRYPT_MODE_CBC;
+			return $this->_mcrypt_mode = MCRYPT_MODE_CBC;
 		}
 
 		return $this->_mcrypt_mode;
@@ -498,13 +444,12 @@ class CI_Encrypt {
 	/**
 	 * Set the Hash type
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	string
+	 * @return	void
 	 */
-	function set_hash($type = 'sha1')
+	public function set_hash($type = 'sha1')
 	{
-		$this->_hash_type = ($type != 'sha1' AND $type != 'md5') ? 'sha1' : $type;
+		$this->_hash_type = ($type !== 'sha1' && $type !== 'md5') ? 'sha1' : $type;
 	}
 
 	// --------------------------------------------------------------------
@@ -512,48 +457,14 @@ class CI_Encrypt {
 	/**
 	 * Hash encode a string
 	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */
-	function hash($str)
-	{
-		return ($this->_hash_type == 'sha1') ? $this->sha1($str) : md5($str);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Generate an SHA1 Hash
-	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
-	function sha1($str)
+	public function hash($str)
 	{
-		if ( ! function_exists('sha1'))
-		{
-			if ( ! function_exists('mhash'))
-			{
-				require_once(BASEPATH.'libraries/Sha1.php');
-				$SH = new CI_SHA;
-				return $SH->generate($str);
-			}
-			else
-			{
-				return bin2hex(mhash(MHASH_SHA1, $str));
-			}
-		}
-		else
-		{
-			return sha1($str);
-		}
+		return ($this->_hash_type === 'sha1') ? sha1($str) : md5($str);
 	}
-
 }
 
-// END CI_Encrypt class
-
 /* End of file Encrypt.php */
-/* Location: ./system/libraries/Encrypt.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Encrypt.php */
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 3f5323233..b3efe82cf 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1,4 +1,4 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -47,7 +47,8 @@ class CI_Form_validation {
 	protected $_error_suffix		= '</p>';
 	protected $error_string			= '';
 	protected $_safe_form_data		= FALSE;
-
+	protected $validation_data		= array();
+	
 	/**
 	 * Constructor
 	 */
@@ -78,15 +79,15 @@ class CI_Form_validation {
 	 * This function takes an array of field names and validation
 	 * rules as input, validates the info, and stores it
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @param	string
 	 * @return	void
 	 */
 	public function set_rules($field, $label = '', $rules = '')
 	{
-		// No reason to set rules if we have no POST data
-		if (count($_POST) == 0)
+		// No reason to set rules if we have no POST data 
+		// or a validation array has not been specified
+		if (count($_POST) === 0 && count($this->validation_data) === 0)
 		{
 			return $this;
 		}
@@ -113,7 +114,7 @@ class CI_Form_validation {
 		}
 
 		// No fields? Nothing to do...
-		if ( ! is_string($field) OR  ! is_string($rules) OR $field == '')
+		if ( ! is_string($field) OR ! is_string($rules) OR $field == '')
 		{
 			return $this;
 		}
@@ -121,21 +122,20 @@ class CI_Form_validation {
 		// If the field label wasn't passed we use the field name
 		$label = ($label == '') ? $field : $label;
 
-		// Is the field name an array?  We test for the existence of a bracket "[" in
-		// the field name to determine this.  If it is an array, we break it apart
+		// Is the field name an array? If it is an array, we break it apart
 		// into its components so that we can fetch the corresponding POST data later
-		if (strpos($field, '[') !== FALSE AND preg_match_all('/\[(.*?)\]/', $field, $matches))
+		if (preg_match_all('/\[(.*?)\]/', $field, $matches))
 		{
 			// Note: Due to a bug in current() that affects some versions
 			// of PHP we can not pass function call directly into it
 			$x = explode('[', $field);
 			$indexes[] = current($x);
 
-			for ($i = 0; $i < count($matches['0']); $i++)
+			for ($i = 0, $c = count($matches[0]); $i < $c; $i++)
 			{
-				if ($matches['1'][$i] != '')
+				if ($matches[1][$i] != '')
 				{
-					$indexes[] = $matches['1'][$i];
+					$indexes[] = $matches[1][$i];
 				}
 			}
 
@@ -162,14 +162,31 @@ class CI_Form_validation {
 	}
 
 	// --------------------------------------------------------------------
+	
+	/**
+	 * By default, form validation uses the $_POST array to validate
+	 * 
+	 * If an array is set through this method, then this array will
+	 * be used instead of the $_POST array
+	 * 
+	 * @param array $data 
+	 */
+	public function set_data($data = '')
+	{
+		if ( ! empty($data) && is_array($data))
+		{
+			$this->validation_data = $data;		
+		}
+	}
+	
+	// --------------------------------------------------------------------
 
 	/**
 	 * Set Error Message
 	 *
 	 * Lets users set their own error messages on the fly.  Note:  The key
-	 * name has to match the  function name that it corresponds to.
+	 * name has to match the function name that it corresponds to.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
@@ -193,7 +210,6 @@ class CI_Form_validation {
 	 *
 	 * Permits a prefix/suffix to be added to each error message
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	void
@@ -213,7 +229,6 @@ class CI_Form_validation {
 	 *
 	 * Gets the error message associated with a particular field
 	 *
-	 * @access	public
 	 * @param	string	the field name
 	 * @return	void
 	 */
@@ -240,11 +255,24 @@ class CI_Form_validation {
 	// --------------------------------------------------------------------
 
 	/**
+	 * Get Array of Error Messages
+	 *
+	 * Returns the error messages as an array
+	 *
+	 * @return	array
+	 */
+	public function error_array()
+	{
+		return $this->_error_array;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Error String
 	 *
 	 * Returns the error messages as a string, wrapped in the error delimiters
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	str
@@ -287,23 +315,26 @@ class CI_Form_validation {
 	 *
 	 * This function does all the work.
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function run($group = '')
 	{
 		// Do we even have any data to process?  Mm?
-		if (count($_POST) == 0)
+		$validation_array = ( ! empty($this->validation_data)) ? $this->validation_data : $_POST;
+		if (count($validation_array) === 0)
 		{
 			return FALSE;
 		}
+		
+		// Clear any previous validation data
+		$this->_reset_validation();
 
 		// Does the _field_data array containing the validation rules exist?
 		// If not, we look to see if they were assigned via a config file
-		if (count($this->_field_data) == 0)
+		if (count($this->_field_data) === 0)
 		{
 			// No validation rules?  We're done...
-			if (count($this->_config_rules) == 0)
+			if (count($this->_config_rules) === 0)
 			{
 				return FALSE;
 			}
@@ -321,7 +352,7 @@ class CI_Form_validation {
 			}
 
 			// We're we able to set the rules correctly?
-			if (count($this->_field_data) == 0)
+			if (count($this->_field_data) === 0)
 			{
 				log_message('debug', "Unable to find validation rules");
 				return FALSE;
@@ -335,18 +366,18 @@ class CI_Form_validation {
 		// corresponding $_POST item and test for errors
 		foreach ($this->_field_data as $field => $row)
 		{
-			// Fetch the data from the corresponding $_POST array and cache it in the _field_data array.
+			// Fetch the data from the corresponding $_POST or validation array and cache it in the _field_data array.
 			// Depending on whether the field name is an array or a string will determine where we get it from.
 
-			if ($row['is_array'] == TRUE)
+			if ($row['is_array'] === TRUE)
 			{
-				$this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']);
+				$this->_field_data[$field]['postdata'] = $this->_reduce_array($validation_array, $row['keys']);
 			}
 			else
 			{
-				if (isset($_POST[$field]) AND $_POST[$field] != "")
+				if (isset($validation_array[$field]) AND $validation_array[$field] != "")
 				{
-					$this->_field_data[$field]['postdata'] = $_POST[$field];
+					$this->_field_data[$field]['postdata'] = $validation_array[$field];
 				}
 			}
 
@@ -364,14 +395,7 @@ class CI_Form_validation {
 		// Now we need to re-set the POST data with the new, processed data
 		$this->_reset_post_array();
 
-		// No errors, validation passes!
-		if ($total_errors == 0)
-		{
-			return TRUE;
-		}
-
-		// Validation fails
-		return FALSE;
+		return ($total_errors === 0);
 	}
 
 	// --------------------------------------------------------------------
@@ -379,7 +403,6 @@ class CI_Form_validation {
 	/**
 	 * Traverse a multidimensional $_POST array index until the data is found
 	 *
-	 * @access	private
 	 * @param	array
 	 * @param	array
 	 * @param	integer
@@ -387,23 +410,9 @@ class CI_Form_validation {
 	 */
 	protected function _reduce_array($array, $keys, $i = 0)
 	{
-		if (is_array($array))
+		if (is_array($array) && isset($keys[$i]))
 		{
-			if (isset($keys[$i]))
-			{
-				if (isset($array[$keys[$i]]))
-				{
-					$array = $this->_reduce_array($array[$keys[$i]], $keys, ($i+1));
-				}
-				else
-				{
-					return NULL;
-				}
-			}
-			else
-			{
-				return $array;
-			}
+			return isset($array[$keys[$i]]) ? $this->_reduce_array($array[$keys[$i]], $keys, ($i+1)) : NULL;
 		}
 
 		return $array;
@@ -414,7 +423,6 @@ class CI_Form_validation {
 	/**
 	 * Re-populate the _POST array with our finalized and processed data
 	 *
-	 * @access	private
 	 * @return	null
 	 */
 	protected function _reset_post_array()
@@ -423,7 +431,7 @@ class CI_Form_validation {
 		{
 			if ( ! is_null($row['postdata']))
 			{
-				if ($row['is_array'] == FALSE)
+				if ($row['is_array'] === FALSE)
 				{
 					if (isset($_POST[$row['field']]))
 					{
@@ -436,7 +444,7 @@ class CI_Form_validation {
 					$post_ref =& $_POST;
 
 					// before we assign values, make a reference to the right POST key
-					if (count($row['keys']) == 1)
+					if (count($row['keys']) === 1)
 					{
 						$post_ref =& $post_ref[current($row['keys'])];
 					}
@@ -472,7 +480,6 @@ class CI_Form_validation {
 	/**
 	 * Executes the Validation routines
 	 *
-	 * @access	private
 	 * @param	array
 	 * @param	array
 	 * @param	mixed
@@ -514,7 +521,7 @@ class CI_Form_validation {
 		// --------------------------------------------------------------------
 
 		// Isset Test. Typically this rule will only apply to checkboxes.
-		if (is_null($postdata) AND $callback == FALSE)
+		if (is_null($postdata) AND $callback === FALSE)
 		{
 			if (in_array('isset', $rules, TRUE) OR in_array('required', $rules))
 			{
@@ -605,7 +612,7 @@ class CI_Form_validation {
 				$result = $this->CI->$rule($postdata, $param);
 
 				// Re-assign the result to the master data array
-				if ($_in_array == TRUE)
+				if ($_in_array === TRUE)
 				{
 					$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
 				}
@@ -630,7 +637,7 @@ class CI_Form_validation {
 					{
 						$result = $rule($postdata);
 
-						if ($_in_array == TRUE)
+						if ($_in_array === TRUE)
 						{
 							$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
 						}
@@ -649,7 +656,7 @@ class CI_Form_validation {
 
 				$result = $this->$rule($postdata, $param);
 
-				if ($_in_array == TRUE)
+				if ($_in_array === TRUE)
 				{
 					$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
 				}
@@ -676,7 +683,7 @@ class CI_Form_validation {
 
 				// Is the parameter we are inserting into the error message the name
 				// of another field?  If so we need to grab its "field label"
-				if (isset($this->_field_data[$param]) AND isset($this->_field_data[$param]['label']))
+				if (isset($this->_field_data[$param], $this->_field_data[$param]['label']))
 				{
 					$param = $this->_translate_fieldname($this->_field_data[$param]['label']);
 				}
@@ -702,7 +709,6 @@ class CI_Form_validation {
 	/**
 	 * Translate a field name
 	 *
-	 * @access	private
 	 * @param	string	the field name
 	 * @return	string
 	 */
@@ -710,7 +716,7 @@ class CI_Form_validation {
 	{
 		// Do we need to translate the field name?
 		// We look for the prefix lang: to determine this
-		if (substr($fieldname, 0, 5) == 'lang:')
+		if (substr($fieldname, 0, 5) === 'lang:')
 		{
 			// Grab the variable
 			$line = substr($fieldname, 5);
@@ -733,14 +739,13 @@ class CI_Form_validation {
 	 * Permits you to repopulate a form field with the value it was submitted
 	 * with, or, if that value doesn't exist, with the default
 	 *
-	 * @access	public
 	 * @param	string	the field name
 	 * @param	string
-	 * @return	void
+	 * @return	string
 	 */
 	public function set_value($field = '', $default = '')
 	{
-		if ( ! isset($this->_field_data[$field]))
+		if ( ! isset($this->_field_data[$field], $this->_field_data[$field]['postdata']))
 		{
 			return $default;
 		}
@@ -763,20 +768,15 @@ class CI_Form_validation {
 	 * Enables pull-down lists to be set to the value the user
 	 * selected in the event of an error
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
 	public function set_select($field = '', $value = '', $default = FALSE)
 	{
-		if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata']))
+		if ( ! isset($this->_field_data[$field], $this->_field_data[$field]['postdata']))
 		{
-			if ($default === TRUE AND count($this->_field_data) === 0)
-			{
-				return ' selected="selected"';
-			}
-			return '';
+			return ($default === TRUE && count($this->_field_data) === 0) ? ' selected="selected"' : '';
 		}
 
 		$field = $this->_field_data[$field]['postdata'];
@@ -788,12 +788,9 @@ class CI_Form_validation {
 				return '';
 			}
 		}
-		else
+		elseif (($field == '' OR $value == '') OR ($field != $value))
 		{
-			if (($field == '' OR $value == '') OR ($field != $value))
-			{
-				return '';
-			}
+			return '';
 		}
 
 		return ' selected="selected"';
@@ -807,20 +804,15 @@ class CI_Form_validation {
 	 * Enables radio buttons to be set to the value the user
 	 * selected in the event of an error
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
 	public function set_radio($field = '', $value = '', $default = FALSE)
 	{
-		if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata']))
+		if ( ! isset($this->_field_data[$field], $this->_field_data[$field]['postdata']))
 		{
-			if ($default === TRUE AND count($this->_field_data) === 0)
-			{
-				return ' checked="checked"';
-			}
-			return '';
+			return ($default === TRUE && count($this->_field_data) === 0) ? ' checked="checked"' : '';
 		}
 
 		$field = $this->_field_data[$field]['postdata'];
@@ -851,40 +843,14 @@ class CI_Form_validation {
 	 * Enables checkboxes to be set to the value the user
 	 * selected in the event of an error
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
 	public function set_checkbox($field = '', $value = '', $default = FALSE)
 	{
-		if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata']))
-		{
-			if ($default === TRUE AND count($this->_field_data) === 0)
-			{
-				return ' checked="checked"';
-			}
-			return '';
-		}
-
-		$field = $this->_field_data[$field]['postdata'];
-
-		if (is_array($field))
-		{
-			if ( ! in_array($value, $field))
-			{
-				return '';
-			}
-		}
-		else
-		{
-			if (($field == '' OR $value == '') OR ($field != $value))
-			{
-				return '';
-			}
-		}
-
-		return ' checked="checked"';
+		// Logic is exactly the same as for radio fields
+		return $this->set_radio($field, $value, $default);
 	}
 
 	// --------------------------------------------------------------------
@@ -892,20 +858,12 @@ class CI_Form_validation {
 	/**
 	 * Required
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function required($str)
 	{
-		if ( ! is_array($str))
-		{
-			return (trim($str) == '') ? FALSE : TRUE;
-		}
-		else
-		{
-			return ( ! empty($str));
-		}
+		return ( ! is_array($str)) ? (trim($str) !== '') : ( ! empty($str));
 	}
 
 	// --------------------------------------------------------------------
@@ -913,19 +871,13 @@ class CI_Form_validation {
 	/**
 	 * Performs a Regular Expression match test.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	regex
 	 * @return	bool
 	 */
 	public function regex_match($str, $regex)
 	{
-		if ( ! preg_match($regex, $str))
-		{
-			return FALSE;
-		}
-
-		return  TRUE;
+		return (bool) preg_match($regex, $str);
 	}
 
 	// --------------------------------------------------------------------
@@ -933,29 +885,29 @@ class CI_Form_validation {
 	/**
 	 * Match one field to another
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	field
 	 * @return	bool
 	 */
 	public function matches($str, $field)
 	{
-		if ( ! isset($_POST[$field]))
+		$validation_array = ( ! empty($this->validation_data)) ? $this->validation_data : $_POST;		
+		if ( ! isset($validation_array[$field]))
 		{
 			return FALSE;
 		}
 
-		$field = $_POST[$field];
-
-		return ($str !== $field) ? FALSE : TRUE;
+		return ($str === $validation_array[$field]);
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Match one field to another
+	 * Is Unique
+	 *
+	 * Check if the input value doesn't already exist
+	 * in the specified database field.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	field
 	 * @return	bool
@@ -976,24 +928,23 @@ class CI_Form_validation {
 	/**
 	 * Minimum Length
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	value
 	 * @return	bool
 	 */
 	public function min_length($str, $val)
 	{
-		if (preg_match("/[^0-9]/", $val))
+		if (preg_match('/[^0-9]/', $val))
 		{
 			return FALSE;
 		}
 
 		if (function_exists('mb_strlen'))
 		{
-			return (mb_strlen($str) < $val) ? FALSE : TRUE;
+			return ! (mb_strlen($str) < $val);
 		}
 
-		return (strlen($str) < $val) ? FALSE : TRUE;
+		return ! (strlen($str) < $val);
 	}
 
 	// --------------------------------------------------------------------
@@ -1001,24 +952,23 @@ class CI_Form_validation {
 	/**
 	 * Max Length
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	value
 	 * @return	bool
 	 */
 	public function max_length($str, $val)
 	{
-		if (preg_match("/[^0-9]/", $val))
+		if (preg_match('/[^0-9]/', $val))
 		{
 			return FALSE;
 		}
 
 		if (function_exists('mb_strlen'))
 		{
-			return (mb_strlen($str) > $val) ? FALSE : TRUE;
+			return ! (mb_strlen($str) > $val);
 		}
 
-		return (strlen($str) > $val) ? FALSE : TRUE;
+		return ! (strlen($str) > $val);
 	}
 
 	// --------------------------------------------------------------------
@@ -1026,24 +976,23 @@ class CI_Form_validation {
 	/**
 	 * Exact Length
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	value
 	 * @return	bool
 	 */
 	public function exact_length($str, $val)
 	{
-		if (preg_match("/[^0-9]/", $val))
+		if (preg_match('/[^0-9]/', $val))
 		{
 			return FALSE;
 		}
 
 		if (function_exists('mb_strlen'))
 		{
-			return (mb_strlen($str) != $val) ? FALSE : TRUE;
+			return (mb_strlen($str) == $val);
 		}
 
-		return (strlen($str) != $val) ? FALSE : TRUE;
+		return (strlen($str) == $val);
 	}
 
 	// --------------------------------------------------------------------
@@ -1051,13 +1000,12 @@ class CI_Form_validation {
 	/**
 	 * Valid Email
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function valid_email($str)
 	{
-		return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str)) ? FALSE : TRUE;
+		return (bool) preg_match('/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix', $str);
 	}
 
 	// --------------------------------------------------------------------
@@ -1065,7 +1013,6 @@ class CI_Form_validation {
 	/**
 	 * Valid Emails
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1078,7 +1025,7 @@ class CI_Form_validation {
 
 		foreach (explode(',', $str) as $email)
 		{
-			if (trim($email) != '' && $this->valid_email(trim($email)) === FALSE)
+			if (trim($email) !== '' && $this->valid_email(trim($email)) === FALSE)
 			{
 				return FALSE;
 			}
@@ -1092,7 +1039,6 @@ class CI_Form_validation {
 	/**
 	 * Validate IP Address
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1106,13 +1052,12 @@ class CI_Form_validation {
 	/**
 	 * Alpha
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function alpha($str)
 	{
-		return ( ! preg_match("/^([a-z])+$/i", $str)) ? FALSE : TRUE;
+		return (bool) preg_match('/^[a-z]+$/i', $str);
 	}
 
 	// --------------------------------------------------------------------
@@ -1120,13 +1065,12 @@ class CI_Form_validation {
 	/**
 	 * Alpha-numeric
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function alpha_numeric($str)
 	{
-		return ( ! preg_match("/^([a-z0-9])+$/i", $str)) ? FALSE : TRUE;
+		return (bool) preg_match('/^[a-z0-9]+$/i', $str);
 	}
 
 	// --------------------------------------------------------------------
@@ -1134,13 +1078,12 @@ class CI_Form_validation {
 	/**
 	 * Alpha-numeric with underscores and dashes
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function alpha_dash($str)
 	{
-		return ( ! preg_match("/^([-a-z0-9_-])+$/i", $str)) ? FALSE : TRUE;
+		return (bool) preg_match('/^[a-z0-9_-]+$/i', $str);
 	}
 
 	// --------------------------------------------------------------------
@@ -1148,13 +1091,12 @@ class CI_Form_validation {
 	/**
 	 * Numeric
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function numeric($str)
 	{
-		return (bool)preg_match( '/^[\-+]?[0-9]*\.?[0-9]+$/', $str);
+		return (bool) preg_match('/^[\-+]?[0-9]*\.?[0-9]+$/', $str);
 
 	}
 
@@ -1163,13 +1105,12 @@ class CI_Form_validation {
 	/**
 	 * Is Numeric
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function is_numeric($str)
 	{
-		return ( ! is_numeric($str)) ? FALSE : TRUE;
+		return is_numeric($str);
 	}
 
 	// --------------------------------------------------------------------
@@ -1177,7 +1118,6 @@ class CI_Form_validation {
 	/**
 	 * Integer
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1191,7 +1131,6 @@ class CI_Form_validation {
 	/**
 	 * Decimal number
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1205,7 +1144,6 @@ class CI_Form_validation {
 	/**
 	 * Greather than
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1223,7 +1161,6 @@ class CI_Form_validation {
 	/**
 	 * Less than
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1241,13 +1178,12 @@ class CI_Form_validation {
 	/**
 	 * Is a Natural number  (0,1,2,3, etc.)
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function is_natural($str)
 	{
-		return (bool) preg_match( '/^[0-9]+$/', $str);
+		return (bool) preg_match('/^[0-9]+$/', $str);
 	}
 
 	// --------------------------------------------------------------------
@@ -1255,23 +1191,12 @@ class CI_Form_validation {
 	/**
 	 * Is a Natural number, but not a zero  (1,2,3, etc.)
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function is_natural_no_zero($str)
 	{
-		if ( ! preg_match( '/^[0-9]+$/', $str))
-		{
-			return FALSE;
-		}
-
-		if ($str == 0)
-		{
-			return FALSE;
-		}
-
-		return TRUE;
+		return ($str != 0 && preg_match('/^[0-9]+$/', $str));
 	}
 
 	// --------------------------------------------------------------------
@@ -1282,7 +1207,6 @@ class CI_Form_validation {
 	 * Tests a string for characters outside of the Base64 alphabet
 	 * as defined by RFC 2045 http://www.faqs.org/rfcs/rfc2045
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -1299,7 +1223,6 @@ class CI_Form_validation {
 	 * This function allows HTML to be safely shown in a form.
 	 * Special characters are converted.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -1320,7 +1243,7 @@ class CI_Form_validation {
 			return $data;
 		}
 
-		return str_replace(array("'", '"', '<', '>'), array("&#39;", "&quot;", '&lt;', '&gt;'), stripslashes($data));
+		return str_replace(array("'", '"', '<', '>'), array('&#39;', '&quot;', '&lt;', '&gt;'), stripslashes($data));
 	}
 
 	// --------------------------------------------------------------------
@@ -1328,7 +1251,6 @@ class CI_Form_validation {
 	/**
 	 * Prep URL
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -1339,7 +1261,7 @@ class CI_Form_validation {
 			return '';
 		}
 
-		if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://')
+		if (substr($str, 0, 7) !== 'http://' && substr($str, 0, 8) !== 'https://')
 		{
 			$str = 'http://'.$str;
 		}
@@ -1352,7 +1274,6 @@ class CI_Form_validation {
 	/**
 	 * Strip Image Tags
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -1366,7 +1287,6 @@ class CI_Form_validation {
 	/**
 	 * XSS Clean
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -1380,7 +1300,6 @@ class CI_Form_validation {
 	/**
 	 * Convert PHP tags to entities
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -1388,9 +1307,26 @@ class CI_Form_validation {
 	{
 		return str_replace(array('<?php', '<?PHP', '<?', '?>'),  array('&lt;?php', '&lt;?PHP', '&lt;?', '?&gt;'), $str);
 	}
-
+	
+	// --------------------------------------------------------------------
+	
+    /**
+     * Reset validation vars
+	 * 
+	 * Prevents subsequent validation routines from being affected by the 
+	 * results of any previous validation routine due to the CI singleton.
+	 * 
+     * @return void
+     */
+    protected function _reset_validation()
+    {
+		$this->_field_data = array();
+		$this->_config_rules = array();
+		$this->_error_array = array();
+		$this->_error_messages = array();
+		$this->error_string = '';
+    }
 }
-// END Form Validation Class
 
 /* End of file Form_validation.php */
 /* Location: ./system/libraries/Form_validation.php */
diff --git a/system/libraries/Ftp.php b/system/libraries/Ftp.php
index 99850a9e5..ab395b0a0 100644
--- a/system/libraries/Ftp.php
+++ b/system/libraries/Ftp.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 20ca1f055..9826eabdd 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1,4 +1,4 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -18,15 +18,13 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * Image Manipulation class
  *
@@ -67,8 +65,8 @@ class CI_Image_lib {
 	public $wm_padding			= 0;			// Padding around text
 	public $wm_hor_offset		= 0;			// Lets you push text to the right
 	public $wm_vrt_offset		= 0;			// Lets you push  text down
-	public $wm_font_color		= '#ffffff';	// Text color
-	public $wm_shadow_color	= '';			// Dropshadow color
+	protected $wm_font_color		= '#ffffff';	// Text color
+	protected $wm_shadow_color		= '';	// Dropshadow color
 	public $wm_shadow_distance	= 2;			// Dropshadow distance
 	public $wm_opacity			= 50;			// Image opacity: 1 - 100  Only works with image
 
@@ -85,15 +83,9 @@ class CI_Image_lib {
 	public $create_fnc			= 'imagecreatetruecolor';
 	public $copy_fnc			= 'imagecopyresampled';
 	public $error_msg			= array();
-	public $wm_use_drop_shadow	= FALSE;
+	protected $wm_use_drop_shadow	= FALSE;
 	public $wm_use_truetype	= FALSE;
 
-	/**
-	 * Constructor
-	 *
-	 * @param	string
-	 * @return	void
-	 */
 	public function __construct($props = array())
 	{
 		if (count($props) > 0)
@@ -101,7 +93,7 @@ class CI_Image_lib {
 			$this->initialize($props);
 		}
 
-		log_message('debug', "Image Lib Class Initialized");
+		log_message('debug', 'Image Lib Class Initialized');
 	}
 
 	// --------------------------------------------------------------------
@@ -111,7 +103,6 @@ class CI_Image_lib {
 	 *
 	 * Resets values in case this class is used in a loop
 	 *
-	 * @access	public
 	 * @return	void
 	 */
 	public function clear()
@@ -154,42 +145,58 @@ class CI_Image_lib {
 	/**
 	 * initialize image preferences
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	bool
 	 */
 	public function initialize($props = array())
 	{
-		/*
-		 * Convert array elements into class variables
-		 */
+		// Convert array elements into class variables
 		if (count($props) > 0)
 		{
 			foreach ($props as $key => $val)
 			{
-				$this->$key = $val;
+				if (property_exists($this, $key))
+				{
+					if (in_array($key, array('wm_font_color', 'wm_shadow_color')))
+					{
+						if (preg_match('/^#?([0-9a-f]{3}|[0-9a-f]{6})$/i', $val, $matches))
+						{
+							/* $matches[1] contains our hex color value, but it might be
+							 * both in the full 6-length format or the shortened 3-length
+							 * value.
+							 * We'll later need the full version, so we keep it if it's
+							 * already there and if not - we'll convert to it. We can
+							 * access string characters by their index as in an array,
+							 * so we'll do that and use concatenation to form the final
+							 * value:
+							 */
+							$val = (strlen($matches[1]) === 6)
+								? '#'.$matches[1]
+								: '#'.$matches[1][0].$matches[1][0].$matches[1][1].$matches[1][1].$matches[1][2].$matches[1][2];
+						}
+						else
+						{
+							continue;
+						}
+					}
+
+					$this->$key = $val;
+				}
 			}
 		}
 
-		/*
-		 * Is there a source image?
-		 *
-		 * If not, there's no reason to continue
-		 *
-		 */
+		// Is there a source image? If not, there's no reason to continue
 		if ($this->source_image == '')
 		{
 			$this->set_error('imglib_source_image_required');
 			return FALSE;
 		}
 
-		/*
-		 * Is getimagesize() Available?
+		/* Is getimagesize() available?
 		 *
 		 * We use it to determine the image properties (width/height).
-		 * Note:  We need to figure out how to determine image
+		 * Note: We need to figure out how to determine image
 		 * properties using ImageMagick and NetPBM
-		 *
 		 */
 		if ( ! function_exists('getimagesize'))
 		{
@@ -199,17 +206,15 @@ class CI_Image_lib {
 
 		$this->image_library = strtolower($this->image_library);
 
-		/*
-		 * Set the full server path
+		/* Set the full server path
 		 *
 		 * The source image may or may not contain a path.
 		 * Either way, we'll try use realpath to generate the
 		 * full server path in order to more reliably read it.
-		 *
 		 */
-		if (function_exists('realpath') AND @realpath($this->source_image) !== FALSE)
+		if (function_exists('realpath') && @realpath($this->source_image) !== FALSE)
 		{
-			$full_source_path = str_replace("\\", "/", realpath($this->source_image));
+			$full_source_path = str_replace('\\', '/', realpath($this->source_image));
 		}
 		else
 		{
@@ -231,64 +236,58 @@ class CI_Image_lib {
 		 *
 		 * If the user has set a "new_image" name it means
 		 * we are making a copy of the source image. If not
-		 * it means we are altering the original.  We'll
+		 * it means we are altering the original. We'll
 		 * set the destination filename and path accordingly.
-		 *
 		 */
 		if ($this->new_image == '')
 		{
 			$this->dest_image = $this->source_image;
 			$this->dest_folder = $this->source_folder;
 		}
+		elseif (strpos($this->new_image, '/') === FALSE)
+		{
+			$this->dest_folder = $this->source_folder;
+			$this->dest_image = $this->new_image;
+		}
 		else
 		{
-			if (strpos($this->new_image, '/') === FALSE)
+			if (strpos($this->new_image, '/') === FALSE AND strpos($this->new_image, '\\') === FALSE)
 			{
-				$this->dest_folder = $this->source_folder;
-				$this->dest_image = $this->new_image;
+				$full_dest_path = str_replace('\\', '/', realpath($this->new_image));
 			}
 			else
 			{
-				if (function_exists('realpath') AND @realpath($this->new_image) !== FALSE)
-				{
-					$full_dest_path = str_replace("\\", "/", realpath($this->new_image));
-				}
-				else
-				{
-					$full_dest_path = $this->new_image;
-				}
+				$full_dest_path = $this->new_image;
+			}
 
-				// Is there a file name?
-				if ( ! preg_match("#\.(jpg|jpeg|gif|png)$#i", $full_dest_path))
-				{
-					$this->dest_folder = $full_dest_path.'/';
-					$this->dest_image = $this->source_image;
-				}
-				else
-				{
-					$x = explode('/', $full_dest_path);
-					$this->dest_image = end($x);
-					$this->dest_folder = str_replace($this->dest_image, '', $full_dest_path);
-				}
+			// Is there a file name?
+			if ( ! preg_match('#\.(jpg|jpeg|gif|png)$#i', $full_dest_path))
+			{
+				$this->dest_folder = $full_dest_path.'/';
+				$this->dest_image = $this->source_image;
+			}
+			else
+			{
+				$x = explode('/', $full_dest_path);
+				$this->dest_image = end($x);
+				$this->dest_folder = str_replace($this->dest_image, '', $full_dest_path);
 			}
 		}
 
-		/*
-		 * Compile the finalized filenames/paths
+		/* Compile the finalized filenames/paths
 		 *
 		 * We'll create two master strings containing the
 		 * full server path to the source image and the
 		 * full server path to the destination image.
 		 * We'll also split the destination image name
 		 * so we can insert the thumbnail marker if needed.
-		 *
 		 */
 		if ($this->create_thumb === FALSE OR $this->thumb_marker == '')
 		{
 			$this->thumb_marker = '';
 		}
 
-		$xp	= $this->explode_name($this->dest_image);
+		$xp = $this->explode_name($this->dest_image);
 
 		$filename = $xp['name'];
 		$file_ext = $xp['ext'];
@@ -296,69 +295,58 @@ class CI_Image_lib {
 		$this->full_src_path = $this->source_folder.$this->source_image;
 		$this->full_dst_path = $this->dest_folder.$filename.$this->thumb_marker.$file_ext;
 
-		/*
-		 * Should we maintain image proportions?
+		/* Should we maintain image proportions?
 		 *
 		 * When creating thumbs or copies, the target width/height
 		 * might not be in correct proportion with the source
-		 * image's width/height.  We'll recalculate it here.
-		 *
+		 * image's width/height. We'll recalculate it here.
 		 */
-		if ($this->maintain_ratio === TRUE && ($this->width != '' AND $this->height != ''))
+		if ($this->maintain_ratio === TRUE && ($this->width != 0 OR $this->height != 0))
 		{
 			$this->image_reproportion();
 		}
 
-		/*
-		 * Was a width and height specified?
-		 *
-		 * If the destination width/height was
-		 * not submitted we will use the values
-		 * from the actual file
+		/* Was a width and height specified?
 		 *
+		 * If the destination width/height was not submitted we
+		 * will use the values from the actual file
 		 */
 		if ($this->width == '')
+		{
 			$this->width = $this->orig_width;
+		}
 
 		if ($this->height == '')
+		{
 			$this->height = $this->orig_height;
+		}
 
 		// Set the quality
-		$this->quality = trim(str_replace("%", "", $this->quality));
+		$this->quality = trim(str_replace('%', '', $this->quality));
 
-		if ($this->quality == '' OR $this->quality == 0 OR ! is_numeric($this->quality))
+		if ($this->quality == '' OR $this->quality == 0 OR ! preg_match('/^[0-9]+$/', $this->quality))
+		{
 			$this->quality = 90;
+		}
 
 		// Set the x/y coordinates
-		$this->x_axis = ($this->x_axis == '' OR ! is_numeric($this->x_axis)) ? 0 : $this->x_axis;
-		$this->y_axis = ($this->y_axis == '' OR ! is_numeric($this->y_axis)) ? 0 : $this->y_axis;
+		$this->x_axis = ($this->x_axis == '' OR ! preg_match('/^[0-9]+$/', $this->x_axis)) ? 0 : $this->x_axis;
+		$this->y_axis = ($this->y_axis == '' OR ! preg_match('/^[0-9]+$/', $this->y_axis)) ? 0 : $this->y_axis;
 
 		// Watermark-related Stuff...
-		if ($this->wm_font_color != '')
-		{
-			if (strlen($this->wm_font_color) == 6)
-			{
-				$this->wm_font_color = '#'.$this->wm_font_color;
-			}
-		}
-
-		if ($this->wm_shadow_color != '')
-		{
-			if (strlen($this->wm_shadow_color) == 6)
-			{
-				$this->wm_shadow_color = '#'.$this->wm_shadow_color;
-			}
-		}
-
 		if ($this->wm_overlay_path != '')
 		{
-			$this->wm_overlay_path = str_replace("\\", "/", realpath($this->wm_overlay_path));
+			$this->wm_overlay_path = str_replace('\\', '/', realpath($this->wm_overlay_path));
 		}
 
 		if ($this->wm_shadow_color != '')
 		{
 			$this->wm_use_drop_shadow = TRUE;
 		}
+		elseif ($this->wm_use_drop_shadow == TRUE && $this->wm_shadow_color == '')
+		{
+			$this->wm_use_drop_shadow = FALSE;
+		}
 
 		if ($this->wm_font_path != '')
 		{
@@ -376,18 +364,11 @@ class CI_Image_lib {
 	 * This is a wrapper function that chooses the proper
 	 * resize function based on the protocol specified
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function resize()
 	{
-		$protocol = 'image_process_'.$this->image_library;
-
-		if (preg_match('/gd2$/i', $protocol))
-		{
-			$protocol = 'image_process_gd';
-		}
-
+		$protocol = ($this->image_library === 'gd2') ? 'image_process_gd' : 'image_process_'.$this->image_library;
 		return $this->$protocol('resize');
 	}
 
@@ -399,18 +380,11 @@ class CI_Image_lib {
 	 * This is a wrapper function that chooses the proper
 	 * cropping function based on the protocol specified
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function crop()
 	{
-		$protocol = 'image_process_'.$this->image_library;
-
-		if (preg_match('/gd2$/i', $protocol))
-		{
-			$protocol = 'image_process_gd';
-		}
-
+		$protocol = ($this->image_library === 'gd2') ? 'image_process_gd' : 'image_process_'.$this->image_library;
 		return $this->$protocol('crop');
 	}
 
@@ -422,7 +396,6 @@ class CI_Image_lib {
 	 * This is a wrapper function that chooses the proper
 	 * rotation function based on the protocol specified
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function rotate()
@@ -448,23 +421,16 @@ class CI_Image_lib {
 			$this->height	= $this->orig_height;
 		}
 
-
 		// Choose resizing function
-		if ($this->image_library == 'imagemagick' OR $this->image_library == 'netpbm')
+		if ($this->image_library === 'imagemagick' OR $this->image_library === 'netpbm')
 		{
 			$protocol = 'image_process_'.$this->image_library;
-
 			return $this->$protocol('rotate');
 		}
 
-		if ($this->rotation_angle == 'hor' OR $this->rotation_angle == 'vrt')
-		{
-			return $this->image_mirror_gd();
-		}
-		else
-		{
-			return $this->image_rotate_gd();
-		}
+		return ($this->rotation_angle === 'hor' OR $this->rotation_angle === 'vrt')
+			? $this->image_mirror_gd()
+			: $this->image_rotate_gd();
 	}
 
 	// --------------------------------------------------------------------
@@ -474,7 +440,6 @@ class CI_Image_lib {
 	 *
 	 * This function will resize or crop
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -484,26 +449,20 @@ class CI_Image_lib {
 
 		// If the target width/height match the source, AND if the new file name is not equal to the old file name
 		// we'll simply make a copy of the original with the new name... assuming dynamic rendering is off.
-		if ($this->dynamic_output === FALSE)
+		if ($this->dynamic_output === FALSE && $this->orig_width == $this->width && $this->orig_height == $this->height)
 		{
-			if ($this->orig_width == $this->width AND $this->orig_height == $this->height)
+			if ($this->source_image != $this->new_image && @copy($this->full_src_path, $this->full_dst_path))
 			{
-				if ($this->source_image != $this->new_image)
-				{
-					if (@copy($this->full_src_path, $this->full_dst_path))
-					{
-						@chmod($this->full_dst_path, FILE_WRITE_MODE);
-					}
-				}
-
-				return TRUE;
+				@chmod($this->full_dst_path, FILE_WRITE_MODE);
 			}
+
+			return TRUE;
 		}
 
 		// Let's set up our values based on the action
 		if ($action == 'crop')
 		{
-			//  Reassign the source width/height if cropping
+			// Reassign the source width/height if cropping
 			$this->orig_width  = $this->width;
 			$this->orig_height = $this->height;
 
@@ -527,14 +486,15 @@ class CI_Image_lib {
 			return FALSE;
 		}
 
-		//  Create The Image
-		//
-		//  old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"
-		//  it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment
-		//  below should that ever prove inaccurate.
-		//
-		//  if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)
-		if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor'))
+		/* Create the image
+		 *
+		 * Old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"
+		 * it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment
+		 * below should that ever prove inaccurate.
+		 *
+		 * if ($this->image_library === 'gd2' && function_exists('imagecreatetruecolor') && $v2_override == FALSE)
+		 */
+		if ($this->image_library === 'gd2' && function_exists('imagecreatetruecolor'))
 		{
 			$create	= 'imagecreatetruecolor';
 			$copy	= 'imagecopyresampled';
@@ -555,21 +515,17 @@ class CI_Image_lib {
 
 		$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);
 
-		//  Show the image
+		// Show the image
 		if ($this->dynamic_output == TRUE)
 		{
 			$this->image_display_gd($dst_img);
 		}
-		else
+		elseif ( ! $this->image_save_gd($dst_img)) // Or save it
 		{
-			// Or save it
-			if ( ! $this->image_save_gd($dst_img))
-			{
-				return FALSE;
-			}
+			return FALSE;
 		}
 
-		//  Kill the file handles
+		// Kill the file handles
 		imagedestroy($dst_img);
 		imagedestroy($src_img);
 
@@ -586,7 +542,6 @@ class CI_Image_lib {
 	 *
 	 * This function will resize, crop or rotate
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -599,44 +554,34 @@ class CI_Image_lib {
 			return FALSE;
 		}
 
-		if ( ! preg_match("/convert$/i", $this->library_path))
+		if ( ! preg_match('/convert$/i', $this->library_path))
 		{
-			$this->library_path = rtrim($this->library_path, '/').'/';
-
-			$this->library_path .= 'convert';
+			$this->library_path = rtrim($this->library_path, '/').'/convert';
 		}
 
 		// Execute the command
-		$cmd = $this->library_path." -quality ".$this->quality;
+		$cmd = $this->library_path.' -quality '.$this->quality;
 
 		if ($action == 'crop')
 		{
-			$cmd .= " -crop ".$this->width."x".$this->height."+".$this->x_axis."+".$this->y_axis." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
+			$cmd .= ' -crop '.$this->width.'x'.$this->height.'+'.$this->x_axis.'+'.$this->y_axis.' "'.$this->full_src_path.'" "'.$this->full_dst_path .'" 2>&1';
 		}
 		elseif ($action == 'rotate')
 		{
-			switch ($this->rotation_angle)
-			{
-				case 'hor'	: $angle = '-flop';
-					break;
-				case 'vrt'	: $angle = '-flip';
-					break;
-				default		: $angle = '-rotate '.$this->rotation_angle;
-					break;
-			}
+			$angle = ($this->rotation_angle === 'hor' OR $this->rotation_angle === 'vrt')
+					? '-flop' : '-rotate '.$this->rotation_angle;
 
-			$cmd .= " ".$angle." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
+			$cmd .= ' '.$angle.' "'.$this->full_src_path.'" "'.$this->full_dst_path.'" 2>&1';
 		}
-		else  // Resize
+		else // Resize
 		{
-			$cmd .= " -resize ".$this->width."x".$this->height." \"$this->full_src_path\" \"$this->full_dst_path\" 2>&1";
+			$cmd .= ' -resize '.$this->width.'x'.$this->height.' "'.$this->full_src_path.'" "'.$this->full_dst_path.'" 2>&1';
 		}
 
 		$retval = 1;
-
 		@exec($cmd, $output, $retval);
 
-		//	Did it work?
+		// Did it work?
 		if ($retval > 0)
 		{
 			$this->set_error('imglib_image_process_failed');
@@ -656,7 +601,6 @@ class CI_Image_lib {
 	 *
 	 * This function will resize, crop or rotate
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
@@ -668,7 +612,7 @@ class CI_Image_lib {
 			return FALSE;
 		}
 
-		//  Build the resizing command
+		// Build the resizing command
 		switch ($this->image_type)
 		{
 			case 1 :
@@ -715,10 +659,9 @@ class CI_Image_lib {
 		$cmd = $this->library_path.$cmd_in.' '.$this->full_src_path.' | '.$cmd_inner.' | '.$cmd_out.' > '.$this->dest_folder.'netpbm.tmp';
 
 		$retval = 1;
-
 		@exec($cmd, $output, $retval);
 
-		//  Did it work?
+		// Did it work?
 		if ($retval > 0)
 		{
 			$this->set_error('imglib_image_process_failed');
@@ -729,7 +672,7 @@ class CI_Image_lib {
 		// If you try manipulating the original it fails so
 		// we have to rename the temp file.
 		copy ($this->dest_folder.'netpbm.tmp', $this->full_dst_path);
-		unlink ($this->dest_folder.'netpbm.tmp');
+		unlink($this->dest_folder.'netpbm.tmp');
 		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return TRUE;
@@ -740,12 +683,11 @@ class CI_Image_lib {
 	/**
 	 * Image Rotate Using GD
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function image_rotate_gd()
 	{
-		//  Create the image handle
+		// Create the image handle
 		if ( ! ($src_img = $this->image_create_gd()))
 		{
 			return FALSE;
@@ -758,29 +700,24 @@ class CI_Image_lib {
 
 		$white	= imagecolorallocate($src_img, 255, 255, 255);
 
-		//  Rotate it!
+		// Rotate it!
 		$dst_img = imagerotate($src_img, $this->rotation_angle, $white);
 
-		//  Save the Image
+		// Show the image
 		if ($this->dynamic_output == TRUE)
 		{
 			$this->image_display_gd($dst_img);
 		}
-		else
+		elseif ( ! $this->image_save_gd($dst_img)) // ... or save it
 		{
-			// Or save it
-			if ( ! $this->image_save_gd($dst_img))
-			{
-				return FALSE;
-			}
+			return FALSE;
 		}
 
-		//  Kill the file handles
+		// Kill the file handles
 		imagedestroy($dst_img);
 		imagedestroy($src_img);
 
 		// Set the file to 777
-
 		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return TRUE;
@@ -793,7 +730,6 @@ class CI_Image_lib {
 	 *
 	 * This function will flip horizontal or vertical
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function image_mirror_gd()
@@ -806,13 +742,10 @@ class CI_Image_lib {
 		$width  = $this->orig_width;
 		$height = $this->orig_height;
 
-		if ($this->rotation_angle == 'hor')
+		if ($this->rotation_angle === 'hor')
 		{
-			for ($i = 0; $i < $height; $i++)
+			for ($i = 0; $i < $height; $i++, $left = 0, $right = $width-1)
 			{
-				$left  = 0;
-				$right = $width-1;
-
 				while ($left < $right)
 				{
 					$cl = imagecolorat($src_img, $left, $i);
@@ -828,11 +761,8 @@ class CI_Image_lib {
 		}
 		else
 		{
-			for ($i = 0; $i < $width; $i++)
+			for ($i = 0; $i < $width; $i++, $top = 0, $bot = $height-1)
 			{
-				$top = 0;
-				$bot = $height-1;
-
 				while ($top < $bot)
 				{
 					$ct = imagecolorat($src_img, $i, $top);
@@ -847,21 +777,17 @@ class CI_Image_lib {
 			}
 		}
 
-		//  Show the image
+		// Show the image
 		if ($this->dynamic_output == TRUE)
 		{
 			$this->image_display_gd($src_img);
 		}
-		else
+		elseif ( ! $this->image_save_gd($src_img)) // ... or save it
 		{
-			// Or save it
-			if ( ! $this->image_save_gd($src_img))
-			{
-				return FALSE;
-			}
+			return FALSE;
 		}
 
-		//  Kill the file handles
+		// Kill the file handles
 		imagedestroy($src_img);
 
 		// Set the file to 777
@@ -878,20 +804,12 @@ class CI_Image_lib {
 	 * This is a wrapper function that chooses the type
 	 * of watermarking based on the specified preference.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	bool
 	 */
 	public function watermark()
 	{
-		if ($this->wm_type == 'overlay')
-		{
-			return $this->overlay_watermark();
-		}
-		else
-		{
-			return $this->text_watermark();
-		}
+		return ($this->wm_type === 'overlay') ? $this->overlay_watermark() : $this->text_watermark();
 	}
 
 	// --------------------------------------------------------------------
@@ -899,7 +817,6 @@ class CI_Image_lib {
 	/**
 	 * Watermark - Graphic Version
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function overlay_watermark()
@@ -910,28 +827,28 @@ class CI_Image_lib {
 			return FALSE;
 		}
 
-		//  Fetch source image properties
+		// Fetch source image properties
 		$this->get_image_properties();
 
-		//  Fetch watermark image properties
-		$props			= $this->get_image_properties($this->wm_overlay_path, TRUE);
+		// Fetch watermark image properties
+		$props		= $this->get_image_properties($this->wm_overlay_path, TRUE);
 		$wm_img_type	= $props['image_type'];
-		$wm_width		= $props['width'];
-		$wm_height		= $props['height'];
+		$wm_width	= $props['width'];
+		$wm_height	= $props['height'];
 
-		//  Create two image resources
+		// Create two image resources
 		$wm_img  = $this->image_create_gd($this->wm_overlay_path, $wm_img_type);
 		$src_img = $this->image_create_gd($this->full_src_path);
 
 		// Reverse the offset if necessary
 		// When the image is positioned at the bottom
 		// we don't want the vertical offset to push it
-		// further down.  We want the reverse, so we'll
-		// invert the offset.  Same with the horizontal
+		// further down. We want the reverse, so we'll
+		// invert the offset. Same with the horizontal
 		// offset when the image is at the right
 
-		$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));
-		$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));
+		$this->wm_vrt_alignment = strtoupper($this->wm_vrt_alignment[0]);
+		$this->wm_hor_alignment = strtoupper($this->wm_hor_alignment[0]);
 
 		if ($this->wm_vrt_alignment == 'B')
 			$this->wm_vrt_offset = $this->wm_vrt_offset * -1;
@@ -939,34 +856,32 @@ class CI_Image_lib {
 		if ($this->wm_hor_alignment == 'R')
 			$this->wm_hor_offset = $this->wm_hor_offset * -1;
 
-		//  Set the base x and y axis values
+		// Set the base x and y axis values
 		$x_axis = $this->wm_hor_offset + $this->wm_padding;
 		$y_axis = $this->wm_vrt_offset + $this->wm_padding;
 
-		//  Set the vertical position
-		switch ($this->wm_vrt_alignment)
+		// Set the vertical position
+		if ($this->wm_vrt_alignment === 'M')
 		{
-			case 'T':
-				break;
-			case 'M':	$y_axis += ($this->orig_height / 2) - ($wm_height / 2);
-				break;
-			case 'B':	$y_axis += $this->orig_height - $wm_height;
-				break;
+			$y_axis += ($this->orig_height / 2) - ($wm_height / 2);
+		}
+		elseif ($this->wm_vrt_alignment === 'B')
+		{
+			$y_axis += $this->orig_height - $wm_height;
 		}
 
-		//  Set the horizontal position
-		switch ($this->wm_hor_alignment)
+		// Set the horizontal position
+		if ($this->wm_hor_alignment === 'C')
 		{
-			case 'L':
-				break;
-			case 'C':	$x_axis += ($this->orig_width / 2) - ($wm_width / 2);
-				break;
-			case 'R':	$x_axis += $this->orig_width - $wm_width;
-				break;
+			$x_axis += ($this->orig_width / 2) - ($wm_width / 2);
+		}
+		elseif ($this->wm_hor_alignment === 'R')
+		{
+			$x_axis += $this->orig_width - $wm_width;
 		}
 
 		//  Build the finalized image
-		if ($wm_img_type == 3 AND function_exists('imagealphablending'))
+		if ($wm_img_type == 3 && function_exists('imagealphablending'))
 		{
 			@imagealphablending($src_img, TRUE);
 		}
@@ -988,17 +903,14 @@ class CI_Image_lib {
 			imagecopymerge($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height, $this->wm_opacity);
 		}
 
-		//  Output the image
+		// Output the image
 		if ($this->dynamic_output == TRUE)
 		{
 			$this->image_display_gd($src_img);
 		}
-		else
+		elseif ( ! $this->image_save_gd($src_img)) // ... or save it
 		{
-			if ( ! $this->image_save_gd($src_img))
-			{
-				return FALSE;
-			}
+			return FALSE;
 		}
 
 		imagedestroy($src_img);
@@ -1012,7 +924,6 @@ class CI_Image_lib {
 	/**
 	 * Watermark - Text Version
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function text_watermark()
@@ -1022,35 +933,20 @@ class CI_Image_lib {
 			return FALSE;
 		}
 
-		if ($this->wm_use_truetype == TRUE AND ! file_exists($this->wm_font_path))
+		if ($this->wm_use_truetype == TRUE && ! file_exists($this->wm_font_path))
 		{
 			$this->set_error('imglib_missing_font');
 			return FALSE;
 		}
 
-		//  Fetch source image properties
+		// Fetch source image properties
 		$this->get_image_properties();
 
-		// Set RGB values for text and shadow
-		$this->wm_font_color	= str_replace('#', '', $this->wm_font_color);
-		$this->wm_shadow_color	= str_replace('#', '', $this->wm_shadow_color);
-
-		$R1 = hexdec(substr($this->wm_font_color, 0, 2));
-		$G1 = hexdec(substr($this->wm_font_color, 2, 2));
-		$B1 = hexdec(substr($this->wm_font_color, 4, 2));
-
-		$R2 = hexdec(substr($this->wm_shadow_color, 0, 2));
-		$G2 = hexdec(substr($this->wm_shadow_color, 2, 2));
-		$B2 = hexdec(substr($this->wm_shadow_color, 4, 2));
-
-		$txt_color	= imagecolorclosest($src_img, $R1, $G1, $B1);
-		$drp_color	= imagecolorclosest($src_img, $R2, $G2, $B2);
-
 		// Reverse the vertical offset
 		// When the image is positioned at the bottom
 		// we don't want the vertical offset to push it
-		// further down.  We want the reverse, so we'll
-		// invert the offset.  Note: The horizontal
+		// further down. We want the reverse, so we'll
+		// invert the offset. Note: The horizontal
 		// offset flips itself automatically
 
 		if ($this->wm_vrt_alignment == 'B')
@@ -1065,7 +961,9 @@ class CI_Image_lib {
 		if ($this->wm_use_truetype == TRUE)
 		{
 			if ($this->wm_font_size == '')
-				$this->wm_font_size = '17';
+			{
+				$this->wm_font_size = 17;
+			}
 
 			$fontwidth  = $this->wm_font_size-($this->wm_font_size/4);
 			$fontheight = $this->wm_font_size;
@@ -1081,58 +979,64 @@ class CI_Image_lib {
 		$x_axis = $this->wm_hor_offset + $this->wm_padding;
 		$y_axis = $this->wm_vrt_offset + $this->wm_padding;
 
-		// Set verticle alignment
 		if ($this->wm_use_drop_shadow == FALSE)
 			$this->wm_shadow_distance = 0;
 
 		$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));
 		$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));
 
-		switch ($this->wm_vrt_alignment)
+		// Set verticle alignment
+		if ($this->wm_vrt_alignment === 'M')
 		{
-			case	 "T" :
-				break;
-			case "M":	$y_axis += ($this->orig_height/2)+($fontheight/2);
-				break;
-			case "B":	$y_axis += ($this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight/2));
-				break;
+			$y_axis += ($this->orig_height / 2) + ($fontheight / 2);
+		}
+		elseif ($this->wm_vrt_alignment === 'B')
+		{
+			$y_axis += $this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight / 2);
 		}
 
 		$x_shad = $x_axis + $this->wm_shadow_distance;
 		$y_shad = $y_axis + $this->wm_shadow_distance;
 
-		// Set horizontal alignment
-		switch ($this->wm_hor_alignment)
+		if ($this->wm_use_drop_shadow)
 		{
-			case "L":
-				break;
-			case "R":
-						if ($this->wm_use_drop_shadow)
-							$x_shad += ($this->orig_width - $fontwidth*strlen($this->wm_text));
-							$x_axis += ($this->orig_width - $fontwidth*strlen($this->wm_text));
-				break;
-			case "C":
-						if ($this->wm_use_drop_shadow)
-							$x_shad += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);
-							$x_axis += floor(($this->orig_width  -$fontwidth*strlen($this->wm_text))/2);
-				break;
-		}
+			// Set horizontal alignment
+			if ($this->wm_hor_alignment === 'R')
+			{
+				$x_shad += $this->orig_width - ($fontwidth * strlen($this->wm_text));
+				$x_axis += $this->orig_width - ($fontwidth * strlen($this->wm_text));
+			}
+			elseif ($this->wm_hor_alignment === 'C')
+			{
+				$x_shad += floor(($this->orig_width - ($fontwidth * strlen($this->wm_text))) / 2);
+				$x_axis += floor(($this->orig_width - ($fontwidth * strlen($this->wm_text))) / 2);
+			}
 
-		//  Add the text to the source image
-		if ($this->wm_use_truetype)
-		{
-			if ($this->wm_use_drop_shadow)
+			/* Set RGB values for text and shadow
+			 *
+			 * First character is #, so we don't really need it.
+			 * Get the rest of the string and split it into 2-length
+			 * hex values:
+			 */
+			$txt_color = str_split(substr($this->wm_font_color, 1, 6), 2);
+			$txt_color = imagecolorclosest($src_img, hexdec($txt_color[0]), hexdec($txt_color[1]), hexdec($txt_color[2]));
+			$drp_color = str_split(substr($this->wm_shadow_color, 1, 6), 2);
+			$drp_color = imagecolorclosest($src_img, hexdec($drp_color[0]), hexdec($drp_color[1]), hexdec($drp_color[2]));
+
+			// Add the text to the source image
+			if ($this->wm_use_truetype)
+			{
 				imagettftext($src_img, $this->wm_font_size, 0, $x_shad, $y_shad, $drp_color, $this->wm_font_path, $this->wm_text);
 				imagettftext($src_img, $this->wm_font_size, 0, $x_axis, $y_axis, $txt_color, $this->wm_font_path, $this->wm_text);
-		}
-		else
-		{
-			if ($this->wm_use_drop_shadow)
+			}
+			else
+			{
 				imagestring($src_img, $this->wm_font_size, $x_shad, $y_shad, $this->wm_text, $drp_color);
 				imagestring($src_img, $this->wm_font_size, $x_axis, $y_axis, $this->wm_text, $txt_color);
+			}
 		}
 
-		//  Output the final image
+		// Output the final image
 		if ($this->dynamic_output == TRUE)
 		{
 			$this->image_display_gd($src_img);
@@ -1155,7 +1059,6 @@ class CI_Image_lib {
 	 * This simply creates an image resource handle
 	 * based on the type of image being processed
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	resource
 	 */
@@ -1212,7 +1115,6 @@ class CI_Image_lib {
 	 * Takes an image resource as input and writes the file
 	 * to the specified destination
 	 *
-	 * @access	public
 	 * @param	resource
 	 * @return	bool
 	 */
@@ -1273,14 +1175,13 @@ class CI_Image_lib {
 	/**
 	 * Dynamically outputs an image
 	 *
-	 * @access	public
 	 * @param	resource
 	 * @return	void
 	 */
 	public function image_display_gd($resource)
 	{
-		header("Content-Disposition: filename={$this->source_image};");
-		header("Content-Type: {$this->mime_type}");
+		header('Content-Disposition: filename='.$this->source_image.';');
+		header('Content-Type: '.$this->mime_type);
 		header('Content-Transfer-Encoding: binary');
 		header('Last-Modified: '.gmdate('D, d M Y H:i:s', time()).' GMT');
 
@@ -1309,38 +1210,47 @@ class CI_Image_lib {
 	 * This function lets us re-proportion the width/height
 	 * if users choose to maintain the aspect ratio when resizing.
 	 *
-	 * @access	public
 	 * @return	void
 	 */
 	public function image_reproportion()
 	{
-		if ( ! is_numeric($this->width) OR ! is_numeric($this->height) OR $this->width == 0 OR $this->height == 0)
-			return;
-
-		if ( ! is_numeric($this->orig_width) OR ! is_numeric($this->orig_height) OR $this->orig_width == 0 OR $this->orig_height == 0)
-			return;
-
-		$new_width	= ceil($this->orig_width*$this->height/$this->orig_height);
-		$new_height	= ceil($this->width*$this->orig_height/$this->orig_width);
-
-		$ratio = (($this->orig_height/$this->orig_width) - ($this->height/$this->width));
-
-		if ($this->master_dim != 'width' AND $this->master_dim != 'height')
+		if (($this->width == 0 && $this->height == 0) OR $this->orig_width == 0 OR $this->orig_height == 0
+			OR ( ! preg_match('/^[0-9]+$/', $this->width) && ! preg_match('/^[0-9]+$/', $this->height))
+			OR ! preg_match('/^[0-9]+$/', $this->orig_width) OR ! preg_match('/^[0-9]+$/', $this->orig_height))
 		{
-			$this->master_dim = ($ratio < 0) ? 'width' : 'height';
+			return;
 		}
 
-		if (($this->width != $new_width) AND ($this->height != $new_height))
+		// Sanitize so we don't call preg_match() anymore
+		$this->width = (int) $this->width;
+		$this->height = (int) $this->height;
+
+		if ($this->master_dim !== 'width' && $this->master_dim !== 'height')
 		{
-			if ($this->master_dim == 'height')
+			if ($this->width > 0 && $this->height > 0)
 			{
-				$this->width = $new_width;
+				$this->master_dim = ((($this->orig_height/$this->orig_width) - ($this->height/$this->width)) < 0)
+							? 'width' : 'height';
 			}
 			else
 			{
-				$this->height = $new_height;
+				$this->master_dim = ($this->height === 0) ? 'width' : 'height';
 			}
 		}
+		elseif (($this->master_dim === 'width' && $this->width === 0)
+			OR ($this->master_dim === 'height' && $this->height === 0))
+		{
+			return;
+		}
+
+		if ($this->master_dim === 'width')
+		{
+			$this->height = (int) ceil($this->width*$this->orig_height/$this->orig_width);
+		}
+		else
+		{
+			$this->width = (int) ceil($this->orig_width*$this->height/$this->orig_height);
+		}
 	}
 
 	// --------------------------------------------------------------------
@@ -1350,7 +1260,6 @@ class CI_Image_lib {
 	 *
 	 * A helper function that gets info about the file
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	mixed
 	 */
@@ -1360,7 +1269,9 @@ class CI_Image_lib {
 		// find a way to determine this using IM or NetPBM
 
 		if ($path == '')
+		{
 			$path = $this->full_src_path;
+		}
 
 		if ( ! file_exists($path))
 		{
@@ -1369,26 +1280,24 @@ class CI_Image_lib {
 		}
 
 		$vals = getimagesize($path);
-
 		$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
-
-		$mime = (isset($types[$vals['2']])) ? 'image/'.$types[$vals['2']] : 'image/jpg';
+		$mime = (isset($types[$vals[2]])) ? 'image/'.$types[$vals[2]] : 'image/jpg';
 
 		if ($return == TRUE)
 		{
-			$v['width']			= $vals['0'];
-			$v['height']		= $vals['1'];
-			$v['image_type']	= $vals['2'];
-			$v['size_str']		= $vals['3'];
-			$v['mime_type']		= $mime;
-
-			return $v;
+			return array(
+					'width' =>	$vals[0],
+					'height' =>	$vals[1],
+					'image_type' =>	$vals[2],
+					'size_str' =>	$vals[3],
+					'mime_type' =>	$mime
+				);
 		}
 
-		$this->orig_width	= $vals['0'];
-		$this->orig_height	= $vals['1'];
-		$this->image_type	= $vals['2'];
-		$this->size_str		= $vals['3'];
+		$this->orig_width	= $vals[0];
+		$this->orig_height	= $vals[1];
+		$this->image_type	= $vals[2];
+		$this->size_str		= $vals[3];
 		$this->mime_type	= $mime;
 
 		return TRUE;
@@ -1400,17 +1309,16 @@ class CI_Image_lib {
 	 * Size calculator
 	 *
 	 * This function takes a known width x height and
-	 * recalculates it to a new size.  Only one
+	 * recalculates it to a new size. Only one
 	 * new variable needs to be known
 	 *
 	 *	$props = array(
-	 *					'width'			=> $width,
-	 *					'height'		=> $height,
-	 *					'new_width'		=> 40,
-	 *					'new_height'	=> ''
-	 *				  );
+	 *			'width'		=> $width,
+	 *			'height'	=> $height,
+	 *			'new_width'	=> 40,
+	 *			'new_height'	=> ''
+	 *		);
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	array
 	 */
@@ -1453,12 +1361,11 @@ class CI_Image_lib {
 	 *
 	 * This is a helper function that extracts the extension
 	 * from the source_image.  This function lets us deal with
-	 * source_images with multiple periods, like:  my.cool.jpg
+	 * source_images with multiple periods, like: my.cool.jpg
 	 * It returns an associative array with two elements:
 	 * $array['ext']  = '.jpg';
 	 * $array['name'] = 'my.cool';
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	array
 	 */
@@ -1475,17 +1382,16 @@ class CI_Image_lib {
 	/**
 	 * Is GD Installed?
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function gd_loaded()
 	{
 		if ( ! extension_loaded('gd'))
 		{
-			if ( ! dl('gd.so'))
-			{
-				return FALSE;
-			}
+			/* As it is stated in the PHP manual, dl() is not always available
+			 * and even if so - it could generate an E_WARNING message on failure
+			 */
+			return (function_exists('dl') && @dl('gd.so'));
 		}
 
 		return TRUE;
@@ -1496,7 +1402,6 @@ class CI_Image_lib {
 	/**
 	 * Get GD version
 	 *
-	 * @access	public
 	 * @return	mixed
 	 */
 	public function gd_version()
@@ -1504,9 +1409,7 @@ class CI_Image_lib {
 		if (function_exists('gd_info'))
 		{
 			$gd_version = @gd_info();
-			$gd_version = preg_replace("/\D/", "", $gd_version['GD Version']);
-
-			return $gd_version;
+			return preg_replace('/\D/', '', $gd_version['GD Version']);
 		}
 
 		return FALSE;
@@ -1517,7 +1420,6 @@ class CI_Image_lib {
 	/**
 	 * Set error message
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
@@ -1549,17 +1451,15 @@ class CI_Image_lib {
 	/**
 	 * Show error messages
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
 	public function display_errors($open = '<p>', $close = '</p>')
 	{
-		return (count($this->error_msg) > 0) ? $open . implode($close . $open, $this->error_msg) . $close : '';
+		return (count($this->error_msg) > 0) ? $open.implode($close.$open, $this->error_msg).$close : '';
 	}
 
 }
-// END Image_lib Class
 
 /* End of file Image_lib.php */
 /* Location: ./system/libraries/Image_lib.php */
diff --git a/system/libraries/Javascript.php b/system/libraries/Javascript.php
index 15887cb95..33df6007a 100644
--- a/system/libraries/Javascript.php
+++ b/system/libraries/Javascript.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -38,7 +38,7 @@
  */
 class CI_Javascript {
 
-	var $_javascript_location = 'js';
+	protected $_javascript_location = 'js';
 
 	public function __construct($params = array())
 	{
@@ -64,7 +64,7 @@ class CI_Javascript {
 		log_message('debug', "Javascript Class Initialized and loaded.  Driver used: $js_library_driver");
 	}
 
-	// --------------------------------------------------------------------	
+	// --------------------------------------------------------------------
 	// Event Code
 	// --------------------------------------------------------------------
 
@@ -73,12 +73,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library blur event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function blur($element = 'this', $js = '')
+	public function blur($element = 'this', $js = '')
 	{
 		return $this->js->_blur($element, $js);
 	}
@@ -90,12 +89,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library change event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function change($element = 'this', $js = '')
+	public function change($element = 'this', $js = '')
 	{
 		return $this->js->_change($element, $js);
 	}
@@ -107,13 +105,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library click event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @param	boolean	whether or not to return false
 	 * @return	string
 	 */
-	function click($element = 'this', $js = '', $ret_false = TRUE)
+	public function click($element = 'this', $js = '', $ret_false = TRUE)
 	{
 		return $this->js->_click($element, $js, $ret_false);
 	}
@@ -125,12 +122,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library dblclick event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function dblclick($element = 'this', $js = '')
+	public function dblclick($element = 'this', $js = '')
 	{
 		return $this->js->_dblclick($element, $js);
 	}
@@ -142,12 +138,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library error event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function error($element = 'this', $js = '')
+	public function error($element = 'this', $js = '')
 	{
 		return $this->js->_error($element, $js);
 	}
@@ -159,12 +154,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library focus event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function focus($element = 'this', $js = '')
+	public function focus($element = 'this', $js = '')
 	{
 		return $this->js->__add_event($focus, $js);
 	}
@@ -176,13 +170,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library hover event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- Javascript code for mouse over
 	 * @param	string	- Javascript code for mouse out
 	 * @return	string
 	 */
-	function hover($element = 'this', $over, $out)
+	public function hover($element = 'this', $over, $out)
 	{
 		return $this->js->__hover($element, $over, $out);
 	}
@@ -194,12 +187,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library keydown event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function keydown($element = 'this', $js = '')
+	public function keydown($element = 'this', $js = '')
 	{
 		return $this->js->_keydown($element, $js);
 	}
@@ -211,12 +203,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library keydown event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function keyup($element = 'this', $js = '')
+	public function keyup($element = 'this', $js = '')
 	{
 		return $this->js->_keyup($element, $js);
 	}
@@ -228,12 +219,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library load event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function load($element = 'this', $js = '')
+	public function load($element = 'this', $js = '')
 	{
 		return $this->js->_load($element, $js);
 	}
@@ -245,12 +235,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library mousedown event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function mousedown($element = 'this', $js = '')
+	public function mousedown($element = 'this', $js = '')
 	{
 		return $this->js->_mousedown($element, $js);
 	}
@@ -262,12 +251,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library mouseout event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function mouseout($element = 'this', $js = '')
+	public function mouseout($element = 'this', $js = '')
 	{
 		return $this->js->_mouseout($element, $js);
 	}
@@ -279,12 +267,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library mouseover event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function mouseover($element = 'this', $js = '')
+	public function mouseover($element = 'this', $js = '')
 	{
 		return $this->js->_mouseover($element, $js);
 	}
@@ -296,12 +283,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library mouseup event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function mouseup($element = 'this', $js = '')
+	public function mouseup($element = 'this', $js = '')
 	{
 		return $this->js->_mouseup($element, $js);
 	}
@@ -313,11 +299,10 @@ class CI_Javascript {
 	 *
 	 * Outputs the called javascript to the screen
 	 *
-	 * @access	public
 	 * @param	string	The code to output
 	 * @return	string
 	 */
-	function output($js)
+	public function output($js)
 	{
 		return $this->js->_output($js);
 	}
@@ -329,12 +314,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library mouseup event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function ready($js)
+	public function ready($js)
 	{
 		return $this->js->_document_ready($js);
 	}
@@ -346,12 +330,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library resize event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function resize($element = 'this', $js = '')
+	public function resize($element = 'this', $js = '')
 	{
 		return $this->js->_resize($element, $js);
 	}
@@ -363,12 +346,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library scroll event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function scroll($element = 'this', $js = '')
+	public function scroll($element = 'this', $js = '')
 	{
 		return $this->js->_scroll($element, $js);
 	}
@@ -380,17 +362,16 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library unload event
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function unload($element = 'this', $js = '')
+	public function unload($element = 'this', $js = '')
 	{
 		return $this->js->_unload($element, $js);
 	}
 
-	// --------------------------------------------------------------------	
+	// --------------------------------------------------------------------
 	// Effects
 	// --------------------------------------------------------------------
 
@@ -400,12 +381,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library addClass event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- Class to add
 	 * @return	string
 	 */
-	function addClass($element = 'this', $class = '')
+	public function addClass($element = 'this', $class = '')
 	{
 		return $this->js->_addClass($element, $class);
 	}
@@ -417,13 +397,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library animate event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function animate($element = 'this', $params = array(), $speed = '', $extra = '')
+	public function animate($element = 'this', $params = array(), $speed = '', $extra = '')
 	{
 		return $this->js->_animate($element, $params, $speed, $extra);
 	}
@@ -435,13 +414,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library hide event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function fadeIn($element = 'this', $speed = '', $callback = '')
+	public function fadeIn($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_fadeIn($element, $speed, $callback);
 	}
@@ -453,13 +431,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library hide event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function fadeOut($element = 'this', $speed = '', $callback = '')
+	public function fadeOut($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_fadeOut($element, $speed, $callback);
 	}
@@ -470,13 +447,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library slideUp event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function slideUp($element = 'this', $speed = '', $callback = '')
+	public function slideUp($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_slideUp($element, $speed, $callback);
 
@@ -489,12 +465,11 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library removeClass event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- Class to add
 	 * @return	string
 	 */
-	function removeClass($element = 'this', $class = '')
+	public function removeClass($element = 'this', $class = '')
 	{
 		return $this->js->_removeClass($element, $class);
 	}
@@ -506,13 +481,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library slideDown event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function slideDown($element = 'this', $speed = '', $callback = '')
+	public function slideDown($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_slideDown($element, $speed, $callback);
 	}
@@ -524,13 +498,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library slideToggle event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function slideToggle($element = 'this', $speed = '', $callback = '')
+	public function slideToggle($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_slideToggle($element, $speed, $callback);
 
@@ -543,13 +516,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library hide action
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function hide($element = 'this', $speed = '', $callback = '')
+	public function hide($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_hide($element, $speed, $callback);
 	}
@@ -561,11 +533,10 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library toggle event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @return	string
 	 */
-	function toggle($element = 'this')
+	public function toggle($element = 'this')
 	{
 		return $this->js->_toggle($element);
 
@@ -578,11 +549,10 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library toggle class event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @return	string
 	 */
-	function toggleClass($element = 'this', $class='')
+	public function toggleClass($element = 'this', $class='')
 	{
 		return $this->js->_toggleClass($element, $class);
 	}
@@ -594,13 +564,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library show event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function show($element = 'this', $speed = '', $callback = '')
+	public function show($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_show($element, $speed, $callback);
 	}
@@ -613,11 +582,10 @@ class CI_Javascript {
 	 *
 	 * gather together all script needing to be output
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @return	string
 	 */
-	function compile($view_var = 'script_foot', $script_tags = TRUE)
+	public function compile($view_var = 'script_foot', $script_tags = TRUE)
 	{
 		$this->js->_compile($view_var, $script_tags);
 	}
@@ -627,10 +595,9 @@ class CI_Javascript {
 	 *
 	 * Clears any previous javascript collected for output
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function clear_compile()
+	public function clear_compile()
 	{
 		$this->js->_clear_compile();
 	}
@@ -642,11 +609,10 @@ class CI_Javascript {
 	 *
 	 * Outputs a <script> tag with the source as an external js file
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @return	string
 	 */
-	function external($external_file = '', $relative = FALSE)
+	public function external($external_file = '', $relative = FALSE)
 	{
 		if ($external_file !== '')
 		{
@@ -660,7 +626,7 @@ class CI_Javascript {
 			}
 		}
 
-		if ($relative === TRUE OR strncmp($external_file, 'http://', 7) == 0 OR strncmp($external_file, 'https://', 8) == 0)
+		if ($relative === TRUE OR strncmp($external_file, 'http://', 7) === 0 OR strncmp($external_file, 'https://', 8) === 0)
 		{
 			$str = $this->_open_script($external_file);
 		}
@@ -673,8 +639,7 @@ class CI_Javascript {
 			$str = $this->_open_script($this->CI->config->slash_item('base_url').$this->_javascript_location.$external_file);
 		}
 
-		$str .= $this->_close_script();
-		return $str;
+		return $str.$this->_close_script();
 	}
 
 	// --------------------------------------------------------------------
@@ -684,20 +649,17 @@ class CI_Javascript {
 	 *
 	 * Outputs a <script> tag
 	 *
-	 * @access	public
 	 * @param	string	The element to attach the event to
 	 * @param	boolean	If a CDATA section should be added
 	 * @return	string
 	 */
-	function inline($script, $cdata = TRUE)
+	public function inline($script, $cdata = TRUE)
 	{
-		$str = $this->_open_script();
-		$str .= ($cdata) ? "\n// <![CDATA[\n{$script}\n// ]]>\n" : "\n{$script}\n";
-		$str .= $this->_close_script();
-
-		return $str;
+		return $this->_open_script()
+			. ($cdata ? "\n// <![CDATA[\n{$script}\n// ]]>\n" : "\n{$script}\n")
+			. $this->_close_script();
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -705,15 +667,13 @@ class CI_Javascript {
 	 *
 	 * Outputs an opening <script>
 	 *
-	 * @access	private
 	 * @param	string
 	 * @return	string
 	 */
-	function _open_script($src = '')
+	protected function _open_script($src = '')
 	{
-		$str = '<script type="text/javascript" charset="'.strtolower($this->CI->config->item('charset')).'"';
-		$str .= ($src == '') ? '>' : ' src="'.$src.'">';
-		return $str;
+		return '<script type="text/javascript" charset="'.strtolower($this->CI->config->item('charset')).'"'
+			. ($src == '' ? '>' : ' src="'.$src.'">');
 	}
 
 	// --------------------------------------------------------------------
@@ -723,11 +683,10 @@ class CI_Javascript {
 	 *
 	 * Outputs an closing </script>
 	 *
-	 * @access	private
 	 * @param	string
 	 * @return	string
 	 */
-	function _close_script($extra = "\n")
+	protected function _close_script($extra = "\n")
 	{
 		return "</script>$extra";
 	}
@@ -744,13 +703,12 @@ class CI_Javascript {
 	 *
 	 * Outputs a javascript library slideDown event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function update($element = 'this', $speed = '', $callback = '')
+	public function update($element = 'this', $speed = '', $callback = '')
 	{
 		return $this->js->_updater($element, $speed, $callback);
 	}
@@ -766,7 +724,7 @@ class CI_Javascript {
 	 * @param	bool	match array types (defaults to objects)
 	 * @return	string	a json formatted string
 	 */
-	function generate_json($result = NULL, $match_array_type = FALSE)
+	public function generate_json($result = NULL, $match_array_type = FALSE)
 	{
 		// JSON data can optionally be passed to this function
 		// either as a database result object or an array, or a user supplied array
@@ -827,11 +785,10 @@ class CI_Javascript {
 	 *
 	 * Checks for an associative array
 	 *
-	 * @access	public
 	 * @param	type
 	 * @return	type
 	 */
-	function _is_associative_array($arr)
+	protected function _is_associative_array($arr)
 	{
 		foreach (array_keys($arr) as $key => $val)
 		{
@@ -851,11 +808,10 @@ class CI_Javascript {
 	 *
 	 * Ensures a standard json value and escapes values
 	 *
-	 * @access	public
 	 * @param	type
 	 * @return	type
 	 */
-	function _prep_args($result, $is_key = FALSE)
+	protected function _prep_args($result, $is_key = FALSE)
 	{
 		if (is_null($result))
 		{
@@ -867,7 +823,7 @@ class CI_Javascript {
 		}
 		elseif (is_string($result) OR $is_key)
 		{
-			return '"'.str_replace(array('\\', "\t", "\n", "\r", '"', '/'), array('\\\\', '\\t', '\\n', "\\r", '\"', '\/'), $result).'"';			
+			return '"'.str_replace(array('\\', "\t", "\n", "\r", '"', '/'), array('\\\\', '\\t', '\\n', "\\r", '\"', '\/'), $result).'"';
 		}
 		elseif (is_scalar($result))
 		{
@@ -880,4 +836,4 @@ class CI_Javascript {
 // END Javascript Class
 
 /* End of file Javascript.php */
-/* Location: ./system/libraries/Javascript.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Javascript.php */
diff --git a/system/libraries/Log.php b/system/libraries/Log.php
index 7f3a307f3..944173fdd 100644
--- a/system/libraries/Log.php
+++ b/system/libraries/Log.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index eb5161d76..d07097223 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2006 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 3.0
@@ -322,7 +322,7 @@ class CI_Migration {
 	 */
 	protected function _get_version()
 	{
-		$row = $this->db->get($this->_migration_table)->row();
+		$row = $this->db->select('version')->get($this->_migration_table)->row();
 		return $row ? $row->version : 0;
 	}
 
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index eea953ae4..35ac541e8 100644
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -1,4 +1,4 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -128,10 +128,10 @@ class CI_Pagination {
 		}
 
 		// Calculate the total number of pages
-		$num_pages = ceil($this->total_rows / $this->per_page);
+		$num_pages = (int) ceil($this->total_rows / $this->per_page);
 
 		// Is there only one page? Hm... nothing more to do here then.
-		if ($num_pages == 1)
+		if ($num_pages === 1)
 		{
 			return '';
 		}
@@ -142,45 +142,37 @@ class CI_Pagination {
 		// Determine the current page number.
 		$CI =& get_instance();
 
+		// See if we are using a prefix or suffix on links
+		if ($this->prefix != '' OR $this->suffix != '')
+		{
+			$this->cur_page = (int) str_replace(array($this->prefix, $this->suffix), '', $CI->uri->segment($this->uri_segment));
+		}
+
 		if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
 		{
 			if ($CI->input->get($this->query_string_segment) != $base_page)
 			{
-				$this->cur_page = $CI->input->get($this->query_string_segment);
-
-				// Prep the current page - no funny business!
-				$this->cur_page = (int) $this->cur_page;
+				$this->cur_page = (int) $CI->input->get($this->query_string_segment);
 			}
 		}
-		else
+		elseif ( ! $this->cur_page AND $CI->uri->segment($this->uri_segment) != $base_page)
 		{
-			if ($CI->uri->segment($this->uri_segment) != $base_page)
-			{
-				$this->cur_page = $CI->uri->segment($this->uri_segment);
-
-				// Prep the current page - no funny business!
-				$this->cur_page = (int) $this->cur_page;
-			}
+			$this->cur_page = (int) $CI->uri->segment($this->uri_segment);
 		}
 
-		// Set current page to 1 if using page numbers instead of offset
-		if ($this->use_page_numbers AND $this->cur_page == 0)
+		// Set current page to 1 if it's not valid or if using page numbers instead of offset
+		if ( ! is_numeric($this->cur_page) OR ($this->use_page_numbers AND $this->cur_page == 0))
 		{
 			$this->cur_page = $base_page;
 		}
 
-		$this->num_links = (int)$this->num_links;
+		$this->num_links = (int) $this->num_links;
 
 		if ($this->num_links < 1)
 		{
 			show_error('Your number of links must be a positive number.');
 		}
 
-		if ( ! is_numeric($this->cur_page))
-		{
-			$this->cur_page = $base_page;
-		}
-
 		// Is the page number beyond the result range?
 		// If so we show the last page
 		if ($this->use_page_numbers)
@@ -236,13 +228,13 @@ class CI_Pagination {
 		{
 			$i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page;
 
-			if (($i == 0 OR ($this->use_page_numbers && $i == 1)) AND $this->first_url != '')
+			if ($i == $base_page AND $this->first_url != '')
 			{
 				$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
 			}
 			else
 			{
-				$i = ($i == 0) ? '' : $this->prefix.$i.$this->suffix;
+				$i = ($i == $base_page) ? '' : $this->prefix.$i.$this->suffix;
 				$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$i.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
 			}
 
@@ -310,4 +302,4 @@ class CI_Pagination {
 // END Pagination Class
 
 /* End of file Pagination.php */
-/* Location: ./system/libraries/Pagination.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Pagination.php */
diff --git a/system/libraries/Parser.php b/system/libraries/Parser.php
index 39aa61e45..321248277 100644
--- a/system/libraries/Parser.php
+++ b/system/libraries/Parser.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index 8a2568d8e..04216be5d 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -126,12 +126,10 @@ class CI_Profiler {
 		{
 			// We match the "end" marker so that the list ends
 			// up in the order that it was defined
-			if (preg_match("/(.+?)_end/i", $key, $match))
+			if (preg_match('/(.+?)_end/i', $key, $match)
+				AND isset($this->CI->benchmark->marker[$match[1].'_end'], $this->CI->benchmark->marker[$match[1].'_start']))
 			{
-				if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))
-				{
-					$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
-				}
+				$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
 			}
 		}
 
@@ -139,12 +137,11 @@ class CI_Profiler {
 		// Note: At some point we should turn this into a template that can
 		// be modified.  We also might want to make this data available to be logged
 
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";
-		$output .= "\n\n<table style='width:100%'>\n";
+		$output = "\n\n"
+			. '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>'
+			. "\n\n\n<table style='width:100%'>\n";
 
 		foreach ($profile as $key => $val)
 		{
@@ -152,10 +149,7 @@ class CI_Profiler {
 			$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
 		}
 
-		$output .= "</table>\n";
-		$output .= "</fieldset>";
-
-		return $output;
+		return $output."</table>\n</fieldset>";
 	}
 
 	// --------------------------------------------------------------------
@@ -178,19 +172,16 @@ class CI_Profiler {
 			}
 		}
 
-		if (count($dbs) == 0)
+		if (count($dbs) === 0)
 		{
-			$output  = "\n\n";
-			$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-			$output .= "\n";
-			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').'&nbsp;&nbsp;</legend>';
-			$output .= "\n";
-			$output .= "\n\n<table style='border:none; width:100%;'>\n";
-			$output .="<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";
-			$output .= "</table>\n";
-			$output .= "</fieldset>";
-
-			return $output;
+			return "\n\n"
+				. '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee;">'
+				. "\n"
+				. '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').'&nbsp;&nbsp;</legend>'
+				. "\n\n\n<table style='border:none; width:100%;'>\n"
+				. '<tr><td style="width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;">'
+				. $this->CI->lang->line('profiler_no_db')
+				. "</td></tr>\n</table>\n</fieldset>";
 		}
 
 		// Load the text helper so we can highlight the SQL
@@ -205,8 +196,6 @@ class CI_Profiler {
 
 		foreach ($dbs as $db)
 		{
-			$count++;
-
 			$hide_queries = (count($db->queries) > $this->_query_toggle_count) ? ' display:none' : '';
 
 			$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_hide').'\'?\''.$this->CI->lang->line('profiler_section_show').'\':\''.$this->CI->lang->line('profiler_section_hide').'\';">'.$this->CI->lang->line('profiler_section_hide').'</span>)';
@@ -216,13 +205,12 @@ class CI_Profiler {
 				$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)';
 			}
 
-			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-			$output .= "\n";
-			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'&nbsp;&nbsp;'.$show_hide_js.'</legend>';
-			$output .= "\n";
-			$output .= "\n\n<table style='width:100%;{$hide_queries}' id='ci_profiler_queries_db_{$count}'>\n";
+			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+				. "\n"
+				. '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'&nbsp;&nbsp;'.$show_hide_js.'</legend>'
+				. "\n\n\n<table style='width:100%;{$hide_queries}' id='ci_profiler_queries_db_{$count}'>\n";
 
-			if (count($db->queries) == 0)
+			if (count($db->queries) === 0)
 			{
 				$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";
 			}
@@ -243,8 +231,7 @@ class CI_Profiler {
 				}
 			}
 
-			$output .= "</table>\n";
-			$output .= "</fieldset>";
+			$output .= "</table>\n</fieldset>";
 
 		}
 
@@ -261,13 +248,13 @@ class CI_Profiler {
 	 */
 	protected function _compile_get()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#cd6e00;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_get_data').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";
+		$output  = "\n\n"
+			. '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#cd6e00;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_get_data').'&nbsp;&nbsp;</legend>'
+			. "\n";
 
-		if (count($_GET) == 0)
+		if (count($_GET) === 0)
 		{
 			$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_get')."</div>";
 		}
@@ -282,23 +269,15 @@ class CI_Profiler {
 					$key = "'".$key."'";
 				}
 
-				$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
-				if (is_array($val))
-				{
-					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";
-				}
-				else
-				{
-					$output .= htmlspecialchars(stripslashes($val));
-				}
-				$output .= "</td></tr>\n";
+				$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>"
+					. ((is_array($val) OR is_object($val)) ? "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>" : htmlspecialchars(stripslashes($val)))
+					. "</td></tr>\n";
 			}
 
 			$output .= "</table>\n";
 		}
-		$output .= "</fieldset>";
 
-		return $output;
+		return $output.'</fieldset>';
 	}
 
 	// --------------------------------------------------------------------
@@ -310,11 +289,11 @@ class CI_Profiler {
 	 */
 	protected function _compile_post()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#009900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_post_data').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";
+		$output = "\n\n"
+			. '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#009900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_post_data').'&nbsp;&nbsp;</legend>'
+			. "\n";
 
 		if (count($_POST) == 0)
 		{
@@ -332,7 +311,7 @@ class CI_Profiler {
 				}
 
 				$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>&#36;_POST[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";
-				if (is_array($val))
+				if (is_array($val) OR is_object($val))
 				{
 					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, TRUE))) . "</pre>";
 				}
@@ -345,9 +324,8 @@ class CI_Profiler {
 
 			$output .= "</table>\n";
 		}
-		$output .= "</fieldset>";
 
-		return $output;
+		return $output.'</fieldset>';
 	}
 
 	// --------------------------------------------------------------------
@@ -359,24 +337,13 @@ class CI_Profiler {
 	 */
 	protected function _compile_uri_string()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_uri_string').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";
-
-		if ($this->CI->uri->uri_string == '')
-		{
-			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_uri')."</div>";
-		}
-		else
-		{
-			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";
-		}
-
-		$output .= "</fieldset>";
-
-		return $output;
+		return "\n\n"
+			. '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_uri_string').'&nbsp;&nbsp;</legend>'
+			. "\n<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>"
+			. ($this->CI->uri->uri_string == '' ? $this->CI->lang->line('profiler_no_uri') : $this->CI->uri->uri_string)
+			. '</div></fieldset>';
 	}
 
 	// --------------------------------------------------------------------
@@ -388,17 +355,12 @@ class CI_Profiler {
 	 */
 	protected function _compile_controller_info()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#995300;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_controller_info').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";
-
-		$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";
-
-		$output .= "</fieldset>";
-
-		return $output;
+		return "\n\n"
+			. '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#995300;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_controller_info').'&nbsp;&nbsp;</legend>'
+			. "\n<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class().'/'.$this->CI->router->fetch_method()
+			. '</div></fieldset>';
 	}
 
 	// --------------------------------------------------------------------
@@ -412,24 +374,13 @@ class CI_Profiler {
 	 */
 	protected function _compile_memory_usage()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#5a0099;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_memory_usage').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";
-
-		if (function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '')
-		{
-			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".number_format($usage).' bytes</div>';
-		}
-		else
-		{
-			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory')."</div>";
-		}
-
-		$output .= "</fieldset>";
-
-		return $output;
+		return "\n\n"
+			. '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#5a0099;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_memory_usage').'&nbsp;&nbsp;</legend>'
+			. "\n<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>"
+			. ((function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '') ? number_format($usage).' bytes' : $this->CI->lang->line('profiler_no_memory'))
+			. '</div></fieldset>';
 	}
 
 	// --------------------------------------------------------------------
@@ -443,13 +394,11 @@ class CI_Profiler {
 	 */
 	protected function _compile_http_headers()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_headers').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_httpheaders_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
-		$output .= "\n";
-
-		$output .= "\n\n<table style='width:100%;display:none' id='ci_profiler_httpheaders_table'>\n";
+		$output = "\n\n"
+			. '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_headers').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_httpheaders_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>'
+			. "\n\n\n<table style='width:100%;display:none' id='ci_profiler_httpheaders_table'>\n";
 
 		foreach (array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)
 		{
@@ -457,10 +406,7 @@ class CI_Profiler {
 			$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>".$header."&nbsp;&nbsp;</td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>".$val."</td></tr>\n";
 		}
 
-		$output .= "</table>\n";
-		$output .= "</fieldset>";
-
-		return $output;
+		return $output."</table>\n</fieldset>";
 	}
 
 	// --------------------------------------------------------------------
@@ -474,17 +420,15 @@ class CI_Profiler {
 	 */
 	protected function _compile_config()
 	{
-		$output  = "\n\n";
-		$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= "\n";
-		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_config').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_config_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
-		$output .= "\n";
+		$output = "\n\n"
+			. '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. "\n"
+			. '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_config').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_config_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>'
+			. "\n\n\n<table style='width:100%; display:none' id='ci_profiler_config_table'>\n";
 
-		$output .= "\n\n<table style='width:100%; display:none' id='ci_profiler_config_table'>\n";
-
-		foreach ($this->CI->config->config as $config=>$val)
+		foreach ($this->CI->config->config as $config => $val)
 		{
-			if (is_array($val))
+			if (is_array($val) OR is_object($val))
 			{
 				$val = print_r($val, TRUE);
 			}
@@ -492,10 +436,7 @@ class CI_Profiler {
 			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$config."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
 		}
 
-		$output .= "</table>\n";
-		$output .= "</fieldset>";
-
-		return $output;
+		return $output."</table>\n</fieldset>";
 	}
 
 	// --------------------------------------------------------------------
@@ -512,13 +453,13 @@ class CI_Profiler {
 			return;
 		}
 
-		$output = '<fieldset id="ci_profiler_csession" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
-		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_session_data').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_session_data\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
-		$output .= "<table style='width:100%;display:none' id='ci_profiler_session_data'>";
+		$output = '<fieldset id="ci_profiler_csession" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">'
+			. '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_session_data').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_session_data\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>'
+			. "<table style='width:100%;display:none' id='ci_profiler_session_data'>";
 
 		foreach ($this->CI->session->all_userdata() as $key => $val)
 		{
-			if (is_array($val) || is_object($val))
+			if (is_array($val) OR is_object($val))
 			{
 				$val = print_r($val, TRUE);
 			}
@@ -526,9 +467,7 @@ class CI_Profiler {
 			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
 		}
 
-		$output .= '</table>';
-		$output .= "</fieldset>";
-		return $output;
+		return $output."</table>\n</fieldset>";
 	}
 
 	// --------------------------------------------------------------------
@@ -553,18 +492,14 @@ class CI_Profiler {
 			}
 		}
 
-		if ($fields_displayed == 0)
+		if ($fields_displayed === 0)
 		{
 			$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">'.$this->CI->lang->line('profiler_no_profiles').'</p>';
 		}
 
-		$output .= '</div>';
-
-		return $output;
+		return $output.'</div>';
 	}
 }
 
-// END CI_Profiler class
-
 /* End of file Profiler.php */
 /* Location: ./system/libraries/Profiler.php */
diff --git a/system/libraries/Session.php b/system/libraries/Session.php
index 08d2ba4ba..dd50a91e1 100644
--- a/system/libraries/Session.php
+++ b/system/libraries/Session.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,15 +18,13 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * Session Class
  *
@@ -38,26 +36,26 @@
  */
 class CI_Session {
 
-	var $sess_encrypt_cookie		= FALSE;
-	var $sess_use_database			= FALSE;
-	var $sess_table_name			= '';
-	var $sess_expiration			= 7200;
-	var $sess_expire_on_close		= FALSE;
-	var $sess_match_ip				= FALSE;
-	var $sess_match_useragent		= TRUE;
-	var $sess_cookie_name			= 'ci_session';
-	var $cookie_prefix				= '';
-	var $cookie_path				= '';
-	var $cookie_domain				= '';
-	var $cookie_secure				= FALSE;
-	var $sess_time_to_update		= 300;
-	var $encryption_key				= '';
-	var $flashdata_key				= 'flash';
-	var $time_reference				= 'time';
-	var $gc_probability				= 5;
-	var $userdata					= array();
-	var $CI;
-	var $now;
+	public $sess_encrypt_cookie		= FALSE;
+	public $sess_use_database		= FALSE;
+	public $sess_table_name			= '';
+	public $sess_expiration			= 7200;
+	public $sess_expire_on_close		= FALSE;
+	public $sess_match_ip			= FALSE;
+	public $sess_match_useragent		= TRUE;
+	public $sess_cookie_name		= 'ci_session';
+	public $cookie_prefix			= '';
+	public $cookie_path			= '';
+	public $cookie_domain			= '';
+	public $cookie_secure			= FALSE;
+	public $sess_time_to_update		= 300;
+	public $encryption_key			= '';
+	public $flashdata_key			= 'flash';
+	public $time_reference			= 'time';
+	public $gc_probability			= 5;
+	public $userdata			= array();
+	public $CI;
+	public $now;
 
 	/**
 	 * Session Constructor
@@ -67,7 +65,7 @@ class CI_Session {
 	 */
 	public function __construct($params = array())
 	{
-		log_message('debug', "Session Class Initialized");
+		log_message('debug', 'Session Class Initialized');
 
 		// Set the super object to a local variable for use throughout the class
 		$this->CI =& get_instance();
@@ -93,14 +91,14 @@ class CI_Session {
 			$this->CI->load->library('encrypt');
 		}
 
-		// Are we using a database?  If so, load it
-		if ($this->sess_use_database === TRUE AND $this->sess_table_name != '')
+		// Are we using a database? If so, load it
+		if ($this->sess_use_database === TRUE && $this->sess_table_name != '')
 		{
 			$this->CI->load->database();
 		}
 
-		// Set the "now" time.  Can either be GMT or server time, based on the
-		// config prefs.  We use this to set the "last activity" time
+		// Set the "now" time. Can either be GMT or server time, based on the
+		// config prefs. We use this to set the "last activity" time
 		$this->now = $this->_get_time();
 
 		// Set the session length. If the session expiration is
@@ -109,12 +107,12 @@ class CI_Session {
 		{
 			$this->sess_expiration = (60*60*24*365*2);
 		}
-		
+
 		// Set the cookie name
 		$this->sess_cookie_name = $this->cookie_prefix.$this->sess_cookie_name;
 
 		// Run the Session routine. If a session doesn't exist we'll
-		// create a new one.  If it does, we'll update it.
+		// create a new one. If it does, we'll update it.
 		if ( ! $this->sess_read())
 		{
 			$this->sess_create();
@@ -133,7 +131,7 @@ class CI_Session {
 		// Delete expired sessions if necessary
 		$this->_sess_gc();
 
-		log_message('debug', "Session routines successfully run");
+		log_message('debug', 'Session routines successfully run');
 	}
 
 	// --------------------------------------------------------------------
@@ -141,10 +139,9 @@ class CI_Session {
 	/**
 	 * Fetch the current session data if it exists
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
-	function sess_read()
+	public function sess_read()
 	{
 		// Fetch the cookie
 		$session = $this->CI->input->cookie($this->sess_cookie_name);
@@ -167,7 +164,7 @@ class CI_Session {
 			$hash	 = substr($session, strlen($session)-32); // get last 32 chars
 			$session = substr($session, 0, strlen($session)-32);
 
-			// Does the md5 hash match?  This is to prevent manipulation of session data in userspace
+			// Does the md5 hash match? This is to prevent manipulation of session data in userspace
 			if ($hash !==  md5($session.$this->encryption_key))
 			{
 				log_message('error', 'The session cookie data did not match what was expected. This could be a possible hacking attempt.');
@@ -180,7 +177,7 @@ class CI_Session {
 		$session = $this->_unserialize($session);
 
 		// Is the session data we unserialized an array with the correct format?
-		if ( ! is_array($session) OR ! isset($session['session_id']) OR ! isset($session['ip_address']) OR ! isset($session['user_agent']) OR ! isset($session['last_activity']))
+		if ( ! is_array($session) OR ! isset($session['session_id'], $session['ip_address'], $session['user_agent'], $session['last_activity']))
 		{
 			$this->sess_destroy();
 			return FALSE;
@@ -193,15 +190,15 @@ class CI_Session {
 			return FALSE;
 		}
 
-		// Does the IP Match?
-		if ($this->sess_match_ip == TRUE AND $session['ip_address'] != $this->CI->input->ip_address())
+		// Does the IP match?
+		if ($this->sess_match_ip == TRUE && $session['ip_address'] !== $this->CI->input->ip_address())
 		{
 			$this->sess_destroy();
 			return FALSE;
 		}
 
 		// Does the User Agent Match?
-		if ($this->sess_match_useragent == TRUE AND trim($session['user_agent']) != trim(substr($this->CI->input->user_agent(), 0, 120)))
+		if ($this->sess_match_useragent == TRUE && trim($session['user_agent']) !== trim(substr($this->CI->input->user_agent(), 0, 120)))
 		{
 			$this->sess_destroy();
 			return FALSE;
@@ -222,10 +219,10 @@ class CI_Session {
 				$this->CI->db->where('user_agent', $session['user_agent']);
 			}
 
-			$query = $this->CI->db->get($this->sess_table_name);
+			$query = $this->CI->db->limit(1)->get($this->sess_table_name);
 
-			// No result?  Kill it!
-			if ($query->num_rows() == 0)
+			// No result? Kill it!
+			if ($query->num_rows() === 0)
 			{
 				$this->sess_destroy();
 				return FALSE;
@@ -233,7 +230,7 @@ class CI_Session {
 
 			// Is there custom data?  If so, add it to the main session array
 			$row = $query->row();
-			if (isset($row->user_data) AND $row->user_data != '')
+			if (isset($row->user_data) && $row->user_data != '')
 			{
 				$custom_data = $this->_unserialize($row->user_data);
 
@@ -259,10 +256,9 @@ class CI_Session {
 	/**
 	 * Write the session data
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function sess_write()
+	public function sess_write()
 	{
 		// Are we saving custom data to the DB?  If not, all we do is update the cookie
 		if ($this->sess_use_database === FALSE)
@@ -284,7 +280,7 @@ class CI_Session {
 			$cookie_userdata[$val] = $this->userdata[$val];
 		}
 
-		// Did we find any custom data?  If not, we turn the empty array into a string
+		// Did we find any custom data? If not, we turn the empty array into a string
 		// since there's no reason to serialize and store an empty array in the DB
 		if (count($custom_userdata) === 0)
 		{
@@ -300,7 +296,7 @@ class CI_Session {
 		$this->CI->db->where('session_id', $this->userdata['session_id']);
 		$this->CI->db->update($this->sess_table_name, array('last_activity' => $this->userdata['last_activity'], 'user_data' => $custom_userdata));
 
-		// Write the cookie.  Notice that we manually pass the cookie data array to the
+		// Write the cookie. Notice that we manually pass the cookie data array to the
 		// _set_cookie() function. Normally that function will store $this->userdata, but
 		// in this case that array contains custom data, which we do not want in the cookie.
 		$this->_set_cookie($cookie_userdata);
@@ -311,28 +307,27 @@ class CI_Session {
 	/**
 	 * Create a new session
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function sess_create()
+	public function sess_create()
 	{
 		$sessid = '';
-		while (strlen($sessid) < 32)
+		do
 		{
 			$sessid .= mt_rand(0, mt_getrandmax());
 		}
+		while (strlen($sessid) < 32);
 
 		// To make the session ID even more secure we'll combine it with the user's IP
 		$sessid .= $this->CI->input->ip_address();
 
 		$this->userdata = array(
-							'session_id'	=> md5(uniqid($sessid, TRUE)),
-							'ip_address'	=> $this->CI->input->ip_address(),
-							'user_agent'	=> substr($this->CI->input->user_agent(), 0, 120),
-							'last_activity'	=> $this->now,
-							'user_data'		=> ''
-							);
-
+					'session_id'	=> md5(uniqid($sessid, TRUE)),
+					'ip_address'	=> $this->CI->input->ip_address(),
+					'user_agent'	=> substr($this->CI->input->user_agent(), 0, 120),
+					'last_activity'	=> $this->now,
+					'user_data'	=> ''
+				);
 
 		// Save the data to the DB if needed
 		if ($this->sess_use_database === TRUE)
@@ -349,10 +344,9 @@ class CI_Session {
 	/**
 	 * Update an existing session
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function sess_update()
+	public function sess_update()
 	{
 		// We only update the session every five minutes by default
 		if (($this->userdata['last_activity'] + $this->sess_time_to_update) >= $this->now)
@@ -360,29 +354,52 @@ class CI_Session {
 			return;
 		}
 
+		// _set_cookie() will handle this for us if we aren't using database sessions
+		// by pushing all userdata to the cookie.
+		$cookie_data = NULL;
+
+		/* Changing the session ID during an AJAX call causes problems,
+		 * so we'll only update our last_activity
+		 */
+		if ($this->CI->input->is_ajax_request())
+		{
+			$this->userdata['last_activity'] = $this->now;
+
+			// Update the session ID and last_activity field in the DB if needed
+			if ($this->sess_use_database === TRUE)
+			{
+				// set cookie explicitly to only have our session data
+				$cookie_data = array();
+				foreach (array('session_id','ip_address','user_agent','last_activity') as $val)
+				{
+					$cookie_data[$val] = $this->userdata[$val];
+				}
+
+				$this->CI->db->query($this->CI->db->update_string($this->sess_table_name,
+											array('last_activity' => $this->userdata['last_activity']),
+											array('session_id' => $this->userdata['session_id'])));
+			}
+
+			return $this->_set_cookie($cookie_data);
+		}
+
 		// Save the old session id so we know which record to
 		// update in the database if we need it
 		$old_sessid = $this->userdata['session_id'];
 		$new_sessid = '';
-		while (strlen($new_sessid) < 32)
+		do
 		{
 			$new_sessid .= mt_rand(0, mt_getrandmax());
 		}
+		while (strlen($new_sessid) < 32);
 
 		// To make the session ID even more secure we'll combine it with the user's IP
 		$new_sessid .= $this->CI->input->ip_address();
 
-		// Turn it into a hash
-		$new_sessid = md5(uniqid($new_sessid, TRUE));
-
-		// Update the session data in the session data array
-		$this->userdata['session_id'] = $new_sessid;
+		// Turn it into a hash and update the session data array
+		$this->userdata['session_id'] = $new_sessid = md5(uniqid($new_sessid, TRUE));
 		$this->userdata['last_activity'] = $this->now;
 
-		// _set_cookie() will handle this for us if we aren't using database sessions
-		// by pushing all userdata to the cookie.
-		$cookie_data = NULL;
-
 		// Update the session ID and last_activity field in the DB if needed
 		if ($this->sess_use_database === TRUE)
 		{
@@ -405,13 +422,12 @@ class CI_Session {
 	/**
 	 * Destroy the current session
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function sess_destroy()
+	public function sess_destroy()
 	{
 		// Kill the session DB row
-		if ($this->sess_use_database === TRUE AND isset($this->userdata['session_id']))
+		if ($this->sess_use_database === TRUE && isset($this->userdata['session_id']))
 		{
 			$this->CI->db->where('session_id', $this->userdata['session_id']);
 			$this->CI->db->delete($this->sess_table_name);
@@ -419,13 +435,13 @@ class CI_Session {
 
 		// Kill the cookie
 		setcookie(
-					$this->sess_cookie_name,
-					addslashes(serialize(array())),
-					($this->now - 31500000),
-					$this->cookie_path,
-					$this->cookie_domain,
-					0
-				);
+				$this->sess_cookie_name,
+				addslashes(serialize(array())),
+				($this->now - 31500000),
+				$this->cookie_path,
+				$this->cookie_domain,
+				0
+			);
 	}
 
 	// --------------------------------------------------------------------
@@ -433,11 +449,10 @@ class CI_Session {
 	/**
 	 * Fetch a specific item from the session array
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
-	function userdata($item)
+	public function userdata($item)
 	{
 		return ( ! isset($this->userdata[$item])) ? FALSE : $this->userdata[$item];
 	}
@@ -447,10 +462,9 @@ class CI_Session {
 	/**
 	 * Fetch all session data
 	 *
-	 * @access	public
 	 * @return	array
 	 */
-	function all_userdata()
+	public function all_userdata()
 	{
 		return $this->userdata;
 	}
@@ -460,12 +474,11 @@ class CI_Session {
 	/**
 	 * Add or change data in the "userdata" array
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @param	string
 	 * @return	void
 	 */
-	function set_userdata($newdata = array(), $newval = '')
+	public function set_userdata($newdata = array(), $newval = '')
 	{
 		if (is_string($newdata))
 		{
@@ -488,10 +501,9 @@ class CI_Session {
 	/**
 	 * Delete a session variable from the "userdata" array
 	 *
-	 * @access	array
 	 * @return	void
 	 */
-	function unset_userdata($newdata = array())
+	public function unset_userdata($newdata = array())
 	{
 		if (is_string($newdata))
 		{
@@ -515,12 +527,11 @@ class CI_Session {
 	 * Add or change flashdata, only available
 	 * until the next request
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @param	string
 	 * @return	void
 	 */
-	function set_flashdata($newdata = array(), $newval = '')
+	public function set_flashdata($newdata = array(), $newval = '')
 	{
 		if (is_string($newdata))
 		{
@@ -531,8 +542,7 @@ class CI_Session {
 		{
 			foreach ($newdata as $key => $val)
 			{
-				$flashdata_key = $this->flashdata_key.':new:'.$key;
-				$this->set_userdata($flashdata_key, $val);
+				$this->set_userdata($this->flashdata_key.':new:'.$key, $val);
 			}
 		}
 	}
@@ -542,21 +552,18 @@ class CI_Session {
 	/**
 	 * Keeps existing flashdata available to next request.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function keep_flashdata($key)
+	public function keep_flashdata($key)
 	{
-		// 'old' flashdata gets removed.  Here we mark all
+		// 'old' flashdata gets removed. Here we mark all
 		// flashdata as 'new' to preserve it from _flashdata_sweep()
 		// Note the function will return FALSE if the $key
 		// provided cannot be found
-		$old_flashdata_key = $this->flashdata_key.':old:'.$key;
-		$value = $this->userdata($old_flashdata_key);
+		$value = $this->userdata($this->flashdata_key.':old:'.$key);
 
-		$new_flashdata_key = $this->flashdata_key.':new:'.$key;
-		$this->set_userdata($new_flashdata_key, $value);
+		$this->set_userdata($this->flashdata_key.':new:'.$key, $value);
 	}
 
 	// ------------------------------------------------------------------------
@@ -564,14 +571,12 @@ class CI_Session {
 	/**
 	 * Fetch a specific flashdata item from the session array
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
-	function flashdata($key)
+	public function flashdata($key)
 	{
-		$flashdata_key = $this->flashdata_key.':old:'.$key;
-		return $this->userdata($flashdata_key);
+		return $this->userdata($this->flashdata_key.':old:'.$key);
 	}
 
 	// ------------------------------------------------------------------------
@@ -580,10 +585,9 @@ class CI_Session {
 	 * Identifies flashdata as 'old' for removal
 	 * when _flashdata_sweep() runs.
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _flashdata_mark()
+	protected function _flashdata_mark()
 	{
 		$userdata = $this->all_userdata();
 		foreach ($userdata as $name => $value)
@@ -591,8 +595,7 @@ class CI_Session {
 			$parts = explode(':new:', $name);
 			if (is_array($parts) && count($parts) === 2)
 			{
-				$new_name = $this->flashdata_key.':old:'.$parts[1];
-				$this->set_userdata($new_name, $value);
+				$this->set_userdata($this->flashdata_key.':old:'.$parts[1], $value);
 				$this->unset_userdata($name);
 			}
 		}
@@ -603,11 +606,9 @@ class CI_Session {
 	/**
 	 * Removes all flashdata marked as 'old'
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-
-	function _flashdata_sweep()
+	protected function _flashdata_sweep()
 	{
 		$userdata = $this->all_userdata();
 		foreach ($userdata as $key => $value)
@@ -625,22 +626,13 @@ class CI_Session {
 	/**
 	 * Get the "now" time
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _get_time()
+	protected function _get_time()
 	{
-		if (strtolower($this->time_reference) == 'gmt')
-		{
-			$now = time();
-			$time = mktime(gmdate("H", $now), gmdate("i", $now), gmdate("s", $now), gmdate("m", $now), gmdate("d", $now), gmdate("Y", $now));
-		}
-		else
-		{
-			$time = time();
-		}
-
-		return $time;
+		return (strtolower($this->time_reference) === 'gmt')
+			? mktime(gmdate('H'), gmdate('i'), gmdate('s'), gmdate('m'), gmdate('d'), gmdate('Y'))
+			: time();
 	}
 
 	// --------------------------------------------------------------------
@@ -648,10 +640,9 @@ class CI_Session {
 	/**
 	 * Write the session cookie
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function _set_cookie($cookie_data = NULL)
+	protected function _set_cookie($cookie_data = NULL)
 	{
 		if (is_null($cookie_data))
 		{
@@ -675,13 +666,13 @@ class CI_Session {
 
 		// Set the cookie
 		setcookie(
-					$this->sess_cookie_name,
-					$cookie_data,
-					$expire,
-					$this->cookie_path,
-					$this->cookie_domain,
-					$this->cookie_secure
-				);
+				$this->sess_cookie_name,
+				$cookie_data,
+				$expire,
+				$this->cookie_path,
+				$this->cookie_domain,
+				$this->cookie_secure
+			);
 	}
 
 	// --------------------------------------------------------------------
@@ -692,34 +683,32 @@ class CI_Session {
 	 * This function first converts any slashes found in the array to a temporary
 	 * marker, so when it gets unserialized the slashes will be preserved
 	 *
-	 * @access	private
 	 * @param	array
 	 * @return	string
 	 */
-	function _serialize($data)
+	protected function _serialize($data)
 	{
 		if (is_array($data))
 		{
 			array_walk_recursive($data, array(&$this, '_escape_slashes'));
 		}
-		else
+		elseif (is_string($data))
 		{
-			if (is_string($data))
-			{
-				$data = str_replace('\\', '{{slash}}', $data);
-			}
+			$data = str_replace('\\', '{{slash}}', $data);
 		}
 		return serialize($data);
 	}
-	
+
 	/**
 	 * Escape slashes
 	 *
 	 * This function converts any slashes found into a temporary marker
 	 *
-	 * @access	private
+	 * @param	string
+	 * @param	string
+	 * @return	void
 	 */
-	function _escape_slashes(&$val, $key)
+	protected function _escape_slashes(&$val, $key)
 	{
 		if (is_string($val))
 		{
@@ -735,11 +724,10 @@ class CI_Session {
 	 * This function unserializes a data string, then converts any
 	 * temporary slash markers back to actual slashes
 	 *
-	 * @access	private
 	 * @param	array
 	 * @return	string
 	 */
-	function _unserialize($data)
+	protected function _unserialize($data)
 	{
 		$data = @unserialize(strip_slashes($data));
 
@@ -751,15 +739,17 @@ class CI_Session {
 
 		return (is_string($data)) ? str_replace('{{slash}}', '\\', $data) : $data;
 	}
-	
+
 	/**
 	 * Unescape slashes
 	 *
 	 * This function converts any slash markers back into actual slashes
 	 *
-	 * @access	private
+	 * @param	string
+	 * @param	string
+	 * @return	void
 	 */
-	function _unescape_slashes(&$val, $key)
+	protected function _unescape_slashes(&$val, $key)
 	{
 		if (is_string($val))
 		{
@@ -775,10 +765,9 @@ class CI_Session {
 	 * This deletes expired session rows from database
 	 * if the probability percentage is met
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function _sess_gc()
+	protected function _sess_gc()
 	{
 		if ($this->sess_use_database != TRUE)
 		{
@@ -797,9 +786,7 @@ class CI_Session {
 		}
 	}
 
-
 }
-// END Session Class
 
 /* End of file Session.php */
-/* Location: ./system/libraries/Session.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Session.php */
diff --git a/system/libraries/Sha1.php b/system/libraries/Sha1.php
deleted file mode 100644
index 477b92bcb..000000000
--- a/system/libraries/Sha1.php
+++ /dev/null
@@ -1,263 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 5.1.6 or newer
- *
- * NOTICE OF LICENSE
- * 
- * Licensed under the Open Software License version 3.0
- * 
- * This source file is subject to the Open Software License (OSL 3.0) that is
- * bundled with this package in the files license.txt / license.rst.  It is
- * also available through the world wide web at this URL:
- * http://opensource.org/licenses/OSL-3.0
- * If you did not receive a copy of the license and are unable to obtain it
- * through the world wide web, please send an email to
- * licensing@ellislab.com so we can send you a copy immediately.
- *
- * @package		CodeIgniter
- * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
- * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * SHA1 Encoding Class
- *
- * Purpose: Provides 160 bit hashing using The Secure Hash Algorithm
- * developed at the National Institute of Standards and Technology. The 40
- * character SHA1 message hash is computationally infeasible to crack.
- *
- * This class is a fallback for servers that are not running PHP greater than
- * 4.3, or do not have the MHASH library.
- *
- * This class is based on two scripts:
- *
- * Marcus Campbell's PHP implementation (GNU license)
- * http://www.tecknik.net/sha-1/
- *
- * ...which is based on Paul Johnston's JavaScript version
- * (BSD license). http://pajhome.org.uk/
- *
- * I encapsulated the functions and wrote one additional method to fix
- * a hex conversion bug. - Rick Ellis
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Encryption
- * @author		EllisLab Dev Team
- * @link		http://codeigniter.com/user_guide/libraries/encryption.html
- */
-class CI_SHA1 {
-
-	public function __construct()
-	{
-		log_message('debug', "SHA1 Class Initialized");
-	}
-
-	/**
-	 * Generate the Hash
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */
-	function generate($str)
-	{
-		$n = ((strlen($str) + 8) >> 6) + 1;
-
-		for ($i = 0; $i < $n * 16; $i++)
-		{
-			$x[$i] = 0;
-		}
-
-		for ($i = 0; $i < strlen($str); $i++)
-		{
-			$x[$i >> 2] |= ord(substr($str, $i, 1)) << (24 - ($i % 4) * 8);
-		}
-
-		$x[$i >> 2] |= 0x80 << (24 - ($i % 4) * 8);
-
-		$x[$n * 16 - 1] = strlen($str) * 8;
-
-		$a =  1732584193;
-		$b = -271733879;
-		$c = -1732584194;
-		$d =  271733878;
-		$e = -1009589776;
-
-		for ($i = 0; $i < count($x); $i += 16)
-		{
-			$olda = $a;
-			$oldb = $b;
-			$oldc = $c;
-			$oldd = $d;
-			$olde = $e;
-
-			for ($j = 0; $j < 80; $j++)
-			{
-				if ($j < 16)
-				{
-					$w[$j] = $x[$i + $j];
-				}
-				else
-				{
-					$w[$j] = $this->_rol($w[$j - 3] ^ $w[$j - 8] ^ $w[$j - 14] ^ $w[$j - 16], 1);
-				}
-
-				$t = $this->_safe_add($this->_safe_add($this->_rol($a, 5), $this->_ft($j, $b, $c, $d)), $this->_safe_add($this->_safe_add($e, $w[$j]), $this->_kt($j)));
-
-				$e = $d;
-				$d = $c;
-				$c = $this->_rol($b, 30);
-				$b = $a;
-				$a = $t;
-			}
-
-			$a = $this->_safe_add($a, $olda);
-			$b = $this->_safe_add($b, $oldb);
-			$c = $this->_safe_add($c, $oldc);
-			$d = $this->_safe_add($d, $oldd);
-			$e = $this->_safe_add($e, $olde);
-		}
-
-		return $this->_hex($a).$this->_hex($b).$this->_hex($c).$this->_hex($d).$this->_hex($e);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Convert a decimal to hex
-	 *
-	 * @access	private
-	 * @param	string
-	 * @return	string
-	 */
-	function _hex($str)
-	{
-		$str = dechex($str);
-
-		if (strlen($str) == 7)
-		{
-			$str = '0'.$str;
-		}
-
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 *  Return result based on iteration
-	 *
-	 * @access	private
-	 * @return	string
-	 */
-	function _ft($t, $b, $c, $d)
-	{
-		if ($t < 20)
-			return ($b & $c) | ((~$b) & $d);
-		if ($t < 40)
-			return $b ^ $c ^ $d;
-		if ($t < 60)
-			return ($b & $c) | ($b & $d) | ($c & $d);
-
-		return $b ^ $c ^ $d;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Determine the additive constant
-	 *
-	 * @access	private
-	 * @return	string
-	 */
-	function _kt($t)
-	{
-		if ($t < 20)
-		{
-			return 1518500249;
-		}
-		else if ($t < 40)
-		{
-			return 1859775393;
-		}
-		else if ($t < 60)
-		{
-			return -1894007588;
-		}
-		else
-		{
-			return -899497514;
-		}
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Add integers, wrapping at 2^32
-	 *
-	 * @access	private
-	 * @return	string
-	 */
-	function _safe_add($x, $y)
-	{
-		$lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
-		$msw = ($x >> 16) + ($y >> 16) + ($lsw >> 16);
-
-		return ($msw << 16) | ($lsw & 0xFFFF);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Bitwise rotate a 32-bit number
-	 *
-	 * @access	private
-	 * @return	integer
-	 */
-	function _rol($num, $cnt)
-	{
-		return ($num << $cnt) | $this->_zero_fill($num, 32 - $cnt);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Pad string with zero
-	 *
-	 * @access	private
-	 * @return	string
-	 */
-	function _zero_fill($a, $b)
-	{
-		$bin = decbin($a);
-
-		if (strlen($bin) < $b)
-		{
-			$bin = 0;
-		}
-		else
-		{
-			$bin = substr($bin, 0, strlen($bin) - $b);
-		}
-
-		for ($i=0; $i < $b; $i++)
-		{
-			$bin = "0".$bin;
-		}
-
-		return bindec($bin);
-	}
-}
-// END CI_SHA
-
-/* End of file Sha1.php */
-/* Location: ./system/libraries/Sha1.php */
diff --git a/system/libraries/Table.php b/system/libraries/Table.php
index 8d0e11a43..fb154e50f 100644
--- a/system/libraries/Table.php
+++ b/system/libraries/Table.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.3.1
@@ -40,14 +40,14 @@
  */
 class CI_Table {
 
-	var $rows				= array();
-	var $heading			= array();
-	var $auto_heading		= TRUE;
-	var $caption			= NULL;
-	var $template			= NULL;
-	var $newline			= "\n";
-	var $empty_cells		= "";
-	var	$function			= FALSE;
+	public $rows			= array();
+	public $heading			= array();
+	public $auto_heading		= TRUE;
+	public $caption			= NULL;
+	public $template		= NULL;
+	public $newline			= "\n";
+	public $empty_cells		= '';
+	public $function		= FALSE;
 
 	public function __construct()
 	{
@@ -59,11 +59,10 @@ class CI_Table {
 	/**
 	 * Set the template
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	void
 	 */
-	function set_template($template)
+	public function set_template($template)
 	{
 		if ( ! is_array($template))
 		{
@@ -80,11 +79,10 @@ class CI_Table {
 	 *
 	 * Can be passed as an array or discreet params
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @return	void
 	 */
-	function set_heading()
+	public function set_heading()
 	{
 		$args = func_get_args();
 		$this->heading = $this->_prep_args($args);
@@ -98,14 +96,13 @@ class CI_Table {
 	 * columns.  This allows a single array with many elements to  be
 	 * displayed in a table that has a fixed column count.
 	 *
-	 * @access	public
 	 * @param	array
 	 * @param	int
 	 * @return	void
 	 */
-	function make_columns($array = array(), $col_limit = 0)
+	public function make_columns($array = array(), $col_limit = 0)
 	{
-		if ( ! is_array($array) OR count($array) == 0)
+		if ( ! is_array($array) OR count($array) === 0)
 		{
 			return FALSE;
 		}
@@ -120,7 +117,7 @@ class CI_Table {
 		}
 
 		$new = array();
-		while (count($array) > 0)
+		do
 		{
 			$temp = array_splice($array, 0, $col_limit);
 
@@ -134,6 +131,7 @@ class CI_Table {
 
 			$new[] = $temp;
 		}
+		while (count($array) > 0);
 
 		return $new;
 	}
@@ -145,11 +143,10 @@ class CI_Table {
 	 *
 	 * Can be passed as an array or discreet params
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @return	void
 	 */
-	function set_empty($value)
+	public function set_empty($value)
 	{
 		$this->empty_cells = $value;
 	}
@@ -161,11 +158,10 @@ class CI_Table {
 	 *
 	 * Can be passed as an array or discreet params
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @return	void
 	 */
-	function add_row()
+	public function add_row()
 	{
 		$args = func_get_args();
 		$this->rows[] = $this->_prep_args($args);
@@ -178,16 +174,15 @@ class CI_Table {
 	 *
 	 * Ensures a standard associative array format for all cell data
 	 *
-	 * @access	public
 	 * @param	type
 	 * @return	type
 	 */
-	function _prep_args($args)
+	protected function _prep_args($args)
 	{
 		// If there is no $args[0], skip this and treat as an associative array
 		// This can happen if there is only a single key, for example this is passed to table->generate
 		// array(array('foo'=>'bar'))
-		if (isset($args[0]) AND (count($args) == 1 && is_array($args[0])))
+		if (isset($args[0]) AND (count($args) === 1 && is_array($args[0])))
 		{
 			// args sent as indexed array
 			if ( ! isset($args[0]['data']))
@@ -224,11 +219,10 @@ class CI_Table {
 	/**
 	 * Add a table caption
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function set_caption($caption)
+	public function set_caption($caption)
 	{
 		$this->caption = $caption;
 	}
@@ -238,11 +232,10 @@ class CI_Table {
 	/**
 	 * Generate the table
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @return	string
 	 */
-	function generate($table_data = NULL)
+	public function generate($table_data = NULL)
 	{
 		// The table data can optionally be passed to this function
 		// either as a database result object or an array
@@ -254,13 +247,13 @@ class CI_Table {
 			}
 			elseif (is_array($table_data))
 			{
-				$set_heading = (count($this->heading) == 0 AND $this->auto_heading == FALSE) ? FALSE : TRUE;
+				$set_heading = (count($this->heading) === 0 AND $this->auto_heading == FALSE) ? FALSE : TRUE;
 				$this->_set_from_array($table_data, $set_heading);
 			}
 		}
 
 		// Is there anything to display?  No?  Smite them!
-		if (count($this->heading) == 0 AND count($this->rows) == 0)
+		if (count($this->heading) === 0 AND count($this->rows) === 0)
 		{
 			return 'Undefined table data';
 		}
@@ -273,24 +266,18 @@ class CI_Table {
 
 		// Build the table!
 
-		$out = $this->template['table_open'];
-		$out .= $this->newline;
+		$out = $this->template['table_open'].$this->newline;
 
 		// Add any caption here
 		if ($this->caption)
 		{
-			$out .= $this->newline;
-			$out .= '<caption>' . $this->caption . '</caption>';
-			$out .= $this->newline;
+			$out .= $this->newline.'<caption>'.$this->caption.'</caption>'.$this->newline;
 		}
 
 		// Is there a table heading to display?
 		if (count($this->heading) > 0)
 		{
-			$out .= $this->template['thead_open'];
-			$out .= $this->newline;
-			$out .= $this->template['heading_row_start'];
-			$out .= $this->newline;
+			$out .= $this->template['thead_open'].$this->newline.$this->template['heading_row_start'].$this->newline;
 
 			foreach ($this->heading as $heading)
 			{
@@ -304,22 +291,16 @@ class CI_Table {
 					}
 				}
 
-				$out .= $temp;
-				$out .= isset($heading['data']) ? $heading['data'] : '';
-				$out .= $this->template['heading_cell_end'];
+				$out .= $temp.(isset($heading['data']) ? $heading['data'] : '').$this->template['heading_cell_end'];
 			}
 
-			$out .= $this->template['heading_row_end'];
-			$out .= $this->newline;
-			$out .= $this->template['thead_close'];
-			$out .= $this->newline;
+			$out .= $this->template['heading_row_end'].$this->newline.$this->template['thead_close'].$this->newline;
 		}
 
 		// Build the table rows
 		if (count($this->rows) > 0)
 		{
-			$out .= $this->template['tbody_open'];
-			$out .= $this->newline;
+			$out .= $this->template['tbody_open'].$this->newline;
 
 			$i = 1;
 			foreach ($this->rows as $row)
@@ -332,8 +313,7 @@ class CI_Table {
 				// We use modulus to alternate the row colors
 				$name = (fmod($i++, 2)) ? '' : 'alt_';
 
-				$out .= $this->template['row_'.$name.'start'];
-				$out .= $this->newline;
+				$out .= $this->template['row_'.$name.'start'].$this->newline;
 
 				foreach ($row as $cell)
 				{
@@ -341,7 +321,7 @@ class CI_Table {
 
 					foreach ($cell as $key => $val)
 					{
-						if ($key != 'data')
+						if ($key !== 'data')
 						{
 							$temp = str_replace('<td', "<td $key='$val'", $temp);
 						}
@@ -369,12 +349,10 @@ class CI_Table {
 					$out .= $this->template['cell_'.$name.'end'];
 				}
 
-				$out .= $this->template['row_'.$name.'end'];
-				$out .= $this->newline;
+				$out .= $this->template['row_'.$name.'end'].$this->newline;
 			}
 
-			$out .= $this->template['tbody_close'];
-			$out .= $this->newline;
+			$out .= $this->template['tbody_close'].$this->newline;
 		}
 
 		$out .= $this->template['table_close'];
@@ -390,10 +368,9 @@ class CI_Table {
 	/**
 	 * Clears the table arrays.  Useful if multiple tables are being generated
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function clear()
+	public function clear()
 	{
 		$this->rows				= array();
 		$this->heading			= array();
@@ -405,11 +382,10 @@ class CI_Table {
 	/**
 	 * Set table data from a database result object
 	 *
-	 * @access	public
 	 * @param	object
 	 * @return	void
 	 */
-	function _set_from_object($query)
+	protected function _set_from_object($query)
 	{
 		if ( ! is_object($query))
 		{
@@ -417,7 +393,7 @@ class CI_Table {
 		}
 
 		// First generate the headings from the table column names
-		if (count($this->heading) == 0)
+		if (count($this->heading) === 0)
 		{
 			if ( ! method_exists($query, 'list_fields'))
 			{
@@ -443,13 +419,12 @@ class CI_Table {
 	/**
 	 * Set table data from an array
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	void
 	 */
-	function _set_from_array($data, $set_heading = TRUE)
+	protected function _set_from_array($data, $set_heading = TRUE)
 	{
-		if ( ! is_array($data) OR count($data) == 0)
+		if ( ! is_array($data) OR count($data) === 0)
 		{
 			return FALSE;
 		}
@@ -458,7 +433,7 @@ class CI_Table {
 		foreach ($data as $row)
 		{
 			// If a heading hasn't already been set we'll use the first row of the array as the heading
-			if ($i == 0 AND count($data) > 1 AND count($this->heading) == 0 AND $set_heading == TRUE)
+			if ($i++ === 0 AND count($data) > 1 AND count($this->heading) === 0 AND $set_heading == TRUE)
 			{
 				$this->heading = $this->_prep_args($row);
 			}
@@ -466,8 +441,6 @@ class CI_Table {
 			{
 				$this->rows[] = $this->_prep_args($row);
 			}
-
-			$i++;
 		}
 	}
 
@@ -476,10 +449,9 @@ class CI_Table {
 	/**
 	 * Compile Template
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _compile_template()
+	protected function _compile_template()
 	{
 		if ($this->template == NULL)
 		{
@@ -502,10 +474,9 @@ class CI_Table {
 	/**
 	 * Default Template
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _default_template()
+	protected function _default_template()
 	{
 		return  array (
 						'table_open'			=> '<table border="0" cellpadding="4" cellspacing="0">',
@@ -538,6 +509,5 @@ class CI_Table {
 
 }
 
-
 /* End of file Table.php */
 /* Location: ./system/libraries/Table.php */
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php
index 1e5928314..79a009133 100644
--- a/system/libraries/Trackback.php
+++ b/system/libraries/Trackback.php
@@ -1,4 +1,4 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -47,11 +47,6 @@ class CI_Trackback {
 	public $response		= '';
 	public $error_msg		= array();
 
-	/**
-	 * Constructor
-	 *
-	 * @access	public
-	 */
 	public function __construct()
 	{
 		log_message('debug', "Trackback Class Initialized");
@@ -62,7 +57,6 @@ class CI_Trackback {
 	/**
 	 * Send Trackback
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	bool
 	 */
@@ -96,20 +90,9 @@ class CI_Trackback {
 			}
 
 			// Convert High ASCII Characters
-			if ($this->convert_ascii == TRUE)
+			if ($this->convert_ascii == TRUE && in_array($item, array('excerpt', 'title', 'blog_name')))
 			{
-				if ($item == 'excerpt')
-				{
-					$$item = $this->convert_ascii($$item);
-				}
-				elseif ($item == 'title')
-				{
-					$$item = $this->convert_ascii($$item);
-				}
-				elseif ($item == 'blog_name')
-				{
-					$$item = $this->convert_ascii($$item);
-				}
+				$$item = $this->convert_ascii($$item);
 			}
 		}
 
@@ -144,7 +127,6 @@ class CI_Trackback {
 	 * If the data is valid it is set to the $this->data array
 	 * so that it can be inserted into a database.
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function receive()
@@ -186,7 +168,6 @@ class CI_Trackback {
 	 * sends the "incomplete information" error, as that's
 	 * the most common one.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
@@ -204,7 +185,6 @@ class CI_Trackback {
 	 * This should be called when a trackback has been
 	 * successfully received and inserted.
 	 *
-	 * @access	public
 	 * @return	void
 	 */
 	public function send_success()
@@ -218,7 +198,6 @@ class CI_Trackback {
 	/**
 	 * Fetch a particular item
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -235,7 +214,6 @@ class CI_Trackback {
 	 * Opens a socket connection and passes the data to
 	 * the server.  Returns TRUE on success, FALSE on failure
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	bool
@@ -280,15 +258,9 @@ class CI_Trackback {
 		@fclose($fp);
 
 
-		if (stristr($this->response, '<error>0</error>') === FALSE)
+		if (stripos($this->response, '<error>0</error>') === FALSE)
 		{
-			$message = 'An unknown error was encountered';
-
-			if (preg_match("/<message>(.*?)<\/message>/is", $this->response, $match))
-			{
-				$message = trim($match['1']);
-			}
-
+			$message = (preg_match('/<message>(.*?)<\/message>/is', $this->response, $match)) ? trim($match[1]) : 'An unknown error was encountered';
 			$this->set_error($message);
 			return FALSE;
 		}
@@ -305,7 +277,6 @@ class CI_Trackback {
 	 * It takes a string of URLs (separated by comma or
 	 * space) and puts each URL into an array
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -318,7 +289,7 @@ class CI_Trackback {
 		$urls = str_replace(",,", ",", $urls);
 
 		// Remove any comma that might be at the end
-		if (substr($urls, -1) == ",")
+		if (substr($urls, -1) === ',')
 		{
 			$urls = substr($urls, 0, -1);
 		}
@@ -341,7 +312,6 @@ class CI_Trackback {
 	 *
 	 * Simply adds "http://" if missing
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -349,9 +319,9 @@ class CI_Trackback {
 	{
 		$url = trim($url);
 
-		if (substr($url, 0, 4) != "http")
+		if (strpos($url, 'http') !== 0)
 		{
-			$url = "http://".$url;
+			$url = 'http://'.$url;
 		}
 	}
 
@@ -360,7 +330,6 @@ class CI_Trackback {
 	/**
 	 * Find the Trackback URL's ID
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -409,7 +378,6 @@ class CI_Trackback {
 	/**
 	 * Convert Reserved XML characters to Entities
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -417,15 +385,13 @@ class CI_Trackback {
 	{
 		$temp = '__TEMP_AMPERSANDS__';
 
-		$str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);
-		$str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
+		$str = preg_replace(array('/&#(\d+);/', '/&(\w+);/'), "$temp\\1;", $str);
 
 		$str = str_replace(array("&","<",">","\"", "'", "-"),
 							array("&amp;", "&lt;", "&gt;", "&quot;", "&#39;", "&#45;"),
 							$str);
 
-		$str = preg_replace("/$temp(\d+);/","&#\\1;",$str);
-		$str = preg_replace("/$temp(\w+);/","&\\1;", $str);
+		$str = preg_replace(array("/$temp(\d+);/", "/$temp(\w+);/"), array('&#\\1;', '&\\1;'), $str);
 
 		return $str;
 	}
@@ -437,7 +403,6 @@ class CI_Trackback {
 	 *
 	 * Limits the string based on the character count. Will preserve complete words.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	integer
 	 * @param	string
@@ -457,13 +422,13 @@ class CI_Trackback {
 			return $str;
 		}
 
-		$out = "";
+		$out = '';
 		foreach (explode(' ', trim($str)) as $val)
 		{
 			$out .= $val.' ';
 			if (strlen($out) >= $n)
 			{
-				return trim($out).$end_char;
+				return rtrim($out).$end_char;
 			}
 		}
 	}
@@ -476,7 +441,6 @@ class CI_Trackback {
 	 * Converts Hight ascii text and MS Word special chars
 	 * to character entities
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
@@ -496,16 +460,16 @@ class CI_Trackback {
 			}
 			else
 			{
-				if (count($temp) == 0)
+				if (count($temp) === 0)
 				{
 					$count = ($ordinal < 224) ? 2 : 3;
 				}
 
 				$temp[] = $ordinal;
 
-				if (count($temp) == $count)
+				if (count($temp) === $count)
 				{
-					$number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
+					$number = ($count == 3) ? (($temp[0] % 16) * 4096) + (($temp[1] % 64) * 64) + ($temp[2] % 64) : (($temp[0] % 32) * 64) + ($temp[1] % 64);
 
 					$out .= '&#'.$number.';';
 					$count = 1;
@@ -522,7 +486,6 @@ class CI_Trackback {
 	/**
 	 * Set error message
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
@@ -537,7 +500,6 @@ class CI_Trackback {
 	/**
 	 * Show error messages
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index af6ca2bf2..46c73ef8b 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -31,7 +31,7 @@
  * Typography Class
  *
  *
- * @access		private
+ * @access		protected
  * @category	Helpers
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/typography.html
@@ -39,22 +39,22 @@
 class CI_Typography {
 
 	// Block level elements that should not be wrapped inside <p> tags
-	var $block_elements = 'address|blockquote|div|dl|fieldset|form|h\d|hr|noscript|object|ol|p|pre|script|table|ul';
+	public $block_elements = 'address|blockquote|div|dl|fieldset|form|h\d|hr|noscript|object|ol|p|pre|script|table|ul';
 
 	// Elements that should not have <p> and <br /> tags within them.
-	var $skip_elements	= 'p|pre|ol|ul|dl|object|table|h\d';
+	public $skip_elements	= 'p|pre|ol|ul|dl|object|table|h\d';
 
 	// Tags we want the parser to completely ignore when splitting the string.
-	var $inline_elements = 'a|abbr|acronym|b|bdo|big|br|button|cite|code|del|dfn|em|i|img|ins|input|label|map|kbd|q|samp|select|small|span|strong|sub|sup|textarea|tt|var';
+	public $inline_elements = 'a|abbr|acronym|b|bdo|big|br|button|cite|code|del|dfn|em|i|img|ins|input|label|map|kbd|q|samp|select|small|span|strong|sub|sup|textarea|tt|var';
 
 	// array of block level elements that require inner content to be within another block level element
-	var $inner_block_required = array('blockquote');
+	public $inner_block_required = array('blockquote');
 
 	// the last block element parsed
-	var $last_block_element = '';
+	public $last_block_element = '';
 
 	// whether or not to protect quotes within { curly braces }
-	var $protect_braced_quotes = FALSE;
+	public $protect_braced_quotes = FALSE;
 
 	/**
 	 * Auto Typography
@@ -72,7 +72,7 @@ class CI_Typography {
 	 * @param	bool	whether to reduce more then two consecutive newlines to two
 	 * @return	string
 	 */
-	function auto_typography($str, $reduce_linebreaks = FALSE)
+	public function auto_typography($str, $reduce_linebreaks = FALSE)
 	{
 		if ($str == '')
 		{
@@ -127,35 +127,32 @@ class CI_Typography {
 		// adversely affected if they are split out so we'll convert the opening bracket < temporarily to: {@TAG}
 		$str = preg_replace("#<(/*)(".$this->inline_elements.")([ >])#i", "{@TAG}\\1\\2\\3", $str);
 
-		// Split the string at every tag.  This expression creates an array with this prototype:
-		//
-		//	[array]
-		//	{
-		//		[0] = <opening tag>
-		//		[1] = Content...
-		//		[2] = <closing tag>
-		//		Etc...
-		//	}
+		/* Split the string at every tag. This expression creates an array with this prototype:
+		 *
+		 *	[array]
+		 *	{
+		 *		[0] = <opening tag>
+		 *		[1] = Content...
+		 *		[2] = <closing tag>
+		 *		Etc...
+		 *	}
+		 */
 		$chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
 
 		// Build our finalized string.  We cycle through the array, skipping tags, and processing the contained text
 		$str = '';
 		$process = TRUE;
 		$paragraph = FALSE;
-		$current_chunk = 0;
-		$total_chunks = count($chunks);
 
-		foreach ($chunks as $chunk)
+		for ($i = 0, $c = count($chunks) - 1; $i <= $c; $i++)
 		{
-			$current_chunk++;
-
 			// Are we dealing with a tag? If so, we'll skip the processing for this cycle.
 			// Well also set the "process" flag which allows us to skip <pre> tags and a few other things.
-			if (preg_match("#<(/*)(".$this->block_elements.").*?>#", $chunk, $match))
+			if (preg_match("#<(/*)(".$this->block_elements.").*?>#", $chunks[$i], $match))
 			{
 				if (preg_match("#".$this->skip_elements."#", $match[2]))
 				{
-					$process =  ($match[1] == '/') ? TRUE : FALSE;
+					$process = ($match[1] === '/');
 				}
 
 				if ($match[1] == '')
@@ -163,24 +160,24 @@ class CI_Typography {
 					$this->last_block_element = $match[2];
 				}
 
-				$str .= $chunk;
+				$str .= $chunks[$i];
 				continue;
 			}
 
-			if ($process == FALSE)
+			if ($process === FALSE)
 			{
-				$str .= $chunk;
+				$str .= $chunks[$i];
 				continue;
 			}
 
 			//  Force a newline to make sure end tags get processed by _format_newlines()
-			if ($current_chunk == $total_chunks)
+			if ($i === $c)
 			{
-				$chunk .= "\n";
+				$chunks[$i] .= "\n";
 			}
 
 			//  Convert Newlines into <p> and <br /> tags
-			$str .= $this->_format_newlines($chunk);
+			$str .= $this->_format_newlines($chunks[$i]);
 		}
 
 		// No opening block level tag?  Add it if needed.
@@ -265,7 +262,7 @@ class CI_Typography {
 	 * @param	string
 	 * @return	string
 	 */
-	function format_characters($str)
+	public function format_characters($str)
 	{
 		static $table;
 
@@ -325,18 +322,13 @@ class CI_Typography {
 	 *
 	 * Converts newline characters into either <p> tags or <br />
 	 *
-	 * @access	public
+	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	function _format_newlines($str)
+	protected function _format_newlines($str)
 	{
-		if ($str == '')
-		{
-			return $str;
-		}
-
-		if (strpos($str, "\n") === FALSE  && ! in_array($this->last_block_element, $this->inner_block_required))
+		if ($str == '' OR (strpos($str, "\n") === FALSE AND ! in_array($this->last_block_element, $this->inner_block_required)))
 		{
 			return $str;
 		}
@@ -373,11 +365,11 @@ class CI_Typography {
 	 * and we don't want double dashes converted to emdash entities, so they are marked with {@DD}
 	 * likewise double spaces are converted to {@NBS} to prevent entity conversion
 	 *
-	 * @access	public
+	 * @access	protected
 	 * @param	array
 	 * @return	string
 	 */
-	function _protect_characters($match)
+	protected function _protect_characters($match)
 	{
 		return str_replace(array("'",'"','--','  '), array('{@SQ}', '{@DQ}', '{@DD}', '{@NBS}'), $match[0]);
 	}
@@ -391,25 +383,16 @@ class CI_Typography {
 	 * @param	string
 	 * @return	string
 	 */
-	function nl2br_except_pre($str)
+	public function nl2br_except_pre($str)
 	{
-		$ex = explode("pre>",$str);
-		$ct = count($ex);
-
-		$newstr = "";
-		for ($i = 0; $i < $ct; $i++)
+		$newstr = '';
+		for ($ex = explode('pre>', $str), $ct = count($ex), $i = 0; $i < $ct; $i++)
 		{
-			if (($i % 2) == 0)
+			$newstr .= (($i % 2) === 0) ? nl2br($ex[$i]) : $ex[$i];
+			if ($ct - 1 !== $i)
 			{
-				$newstr .= nl2br($ex[$i]);
+				$newstr .= 'pre>';
 			}
-			else
-			{
-				$newstr .= $ex[$i];
-			}
-
-			if ($ct - 1 != $i)
-				$newstr .= "pre>";
 		}
 
 		return $newstr;
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index 7afe40b09..38d767c69 100644
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.3.1
@@ -40,12 +40,12 @@
  */
 class CI_Unit_test {
 
-	var $active					= TRUE;
-	var $results				= array();
-	var $strict					= FALSE;
-	var $_template				= NULL;
-	var $_template_rows			= NULL;
-	var $_test_items_visible	= array();
+	public $active					= TRUE;
+	public $results				= array();
+	public $strict					= FALSE;
+	protected $_template				= NULL;
+	protected $_template_rows			= NULL;
+	protected $_test_items_visible	= array();
 
 	public function __construct()
 	{
@@ -70,11 +70,10 @@ class CI_Unit_test {
 	 *
 	 * Runs the supplied tests
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	void
 	 */
-	function set_test_items($items = array())
+	public function set_test_items($items = array())
 	{
 		if ( ! empty($items) AND is_array($items))
 		{
@@ -89,13 +88,12 @@ class CI_Unit_test {
 	 *
 	 * Runs the supplied tests
 	 *
-	 * @access	public
 	 * @param	mixed
 	 * @param	mixed
 	 * @param	string
 	 * @return	string
 	 */
-	function run($test, $expected = TRUE, $test_name = 'undefined', $notes = '')
+	public function run($test, $expected = TRUE, $test_name = 'undefined', $notes = '')
 	{
 		if ($this->active == FALSE)
 		{
@@ -110,11 +108,7 @@ class CI_Unit_test {
 		}
 		else
 		{
-			if ($this->strict == TRUE)
-				$result = ($test === $expected) ? TRUE : FALSE;
-			else
-				$result = ($test == $expected) ? TRUE : FALSE;
-
+			$result = ($this->strict == TRUE) ? ($test === $expected) : ($test == $expected);
 			$extype = gettype($expected);
 		}
 
@@ -142,12 +136,11 @@ class CI_Unit_test {
 	 *
 	 * Displays a table with the test data
 	 *
-	 * @access	public
 	 * @return	string
 	 */
-	function report($result = array())
+	public function report($result = array())
 	{
-		if (count($result) == 0)
+		if (count($result) === 0)
 		{
 			$result = $this->result();
 		}
@@ -176,10 +169,7 @@ class CI_Unit_test {
 					}
 				}
 
-				$temp = $this->_template_rows;
-				$temp = str_replace('{item}', $key, $temp);
-				$temp = str_replace('{result}', $val, $temp);
-				$table .= $temp;
+				$table .= str_replace(array('{item}', '{result}'), array($key, $val), $this->_template_rows);
 			}
 
 			$r .= str_replace('{rows}', $table, $this->_template);
@@ -195,13 +185,12 @@ class CI_Unit_test {
 	 *
 	 * Causes the evaluation to use === rather than ==
 	 *
-	 * @access	public
 	 * @param	bool
 	 * @return	null
 	 */
-	function use_strict($state = TRUE)
+	public function use_strict($state = TRUE)
 	{
-		$this->strict = ($state == FALSE) ? FALSE : TRUE;
+		$this->strict = (bool) $state;
 	}
 
 	// --------------------------------------------------------------------
@@ -211,13 +200,12 @@ class CI_Unit_test {
 	 *
 	 * Enables/disables unit testing
 	 *
-	 * @access	public
 	 * @param	bool
 	 * @return	null
 	 */
-	function active($state = TRUE)
+	public function active($state = TRUE)
 	{
-		$this->active = ($state == FALSE) ? FALSE : TRUE;
+		$this->active = (bool) $state;
 	}
 
 	// --------------------------------------------------------------------
@@ -227,15 +215,14 @@ class CI_Unit_test {
 	 *
 	 * Returns the raw result data
 	 *
-	 * @access	public
 	 * @return	array
 	 */
-	function result($results = array())
+	public function result($results = array())
 	{
 		$CI =& get_instance();
 		$CI->load->language('unit_test');
 
-		if (count($results) == 0)
+		if (count($results) === 0)
 		{
 			$results = $this->results;
 		}
@@ -285,11 +272,10 @@ class CI_Unit_test {
 	 *
 	 * This lets us set the template to be used to display results
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function set_template($template)
+	public function set_template($template)
 	{
 		$this->_template = $template;
 	}
@@ -301,19 +287,17 @@ class CI_Unit_test {
 	 *
 	 * This lets us show file names and line numbers
 	 *
-	 * @access	private
 	 * @return	array
 	 */
-	function _backtrace()
+	protected function _backtrace()
 	{
 		if (function_exists('debug_backtrace'))
 		{
 			$back = debug_backtrace();
-
-			$file = ( ! isset($back['1']['file'])) ? '' : $back['1']['file'];
-			$line = ( ! isset($back['1']['line'])) ? '' : $back['1']['line'];
-
-			return array('file' => $file, 'line' => $line);
+			return array(
+					'file' => (isset($back[1]['file']) ? $back[1]['file'] : ''),
+					'line' => (isset($back[1]['line']) ? $back[1]['line'] : '')
+				);
 		}
 		return array('file' => 'Unknown', 'line' => 'Unknown');
 	}
@@ -323,19 +307,14 @@ class CI_Unit_test {
 	/**
 	 * Get Default Template
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _default_template()
+	protected function _default_template()
 	{
-		$this->_template = "\n".'<table style="width:100%; font-size:small; margin:10px 0; border-collapse:collapse; border:1px solid #CCC;">';
-		$this->_template .= '{rows}';
-		$this->_template .= "\n".'</table>';
-
-		$this->_template_rows = "\n\t".'<tr>';
-		$this->_template_rows .= "\n\t\t".'<th style="text-align: left; border-bottom:1px solid #CCC;">{item}</th>';
-		$this->_template_rows .= "\n\t\t".'<td style="border-bottom:1px solid #CCC;">{result}</td>';
-		$this->_template_rows .= "\n\t".'</tr>';
+		$this->_template = "\n".'<table style="width:100%; font-size:small; margin:10px 0; border-collapse:collapse; border:1px solid #CCC;">{rows}'."\n".'</table>';
+
+		$this->_template_rows = "\n\t<tr>\n\t\t".'<th style="text-align: left; border-bottom:1px solid #CCC;">{item}</th>'
+					. "\n\t\t".'<td style="border-bottom:1px solid #CCC;">{result}</td>'."\n\t</tr>";
 	}
 
 	// --------------------------------------------------------------------
@@ -345,30 +324,23 @@ class CI_Unit_test {
 	 *
 	 * Harvests the data within the template {pseudo-variables}
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	function _parse_template()
+	protected function _parse_template()
 	{
 		if ( ! is_null($this->_template_rows))
 		{
 			return;
 		}
 
-		if (is_null($this->_template))
+		if (is_null($this->_template) OR ! preg_match("/\{rows\}(.*?)\{\/rows\}/si", $this->_template, $match))
 		{
 			$this->_default_template();
 			return;
 		}
 
-		if ( ! preg_match("/\{rows\}(.*?)\{\/rows\}/si", $this->_template, $match))
-		{
-			$this->_default_template();
-			return;
-		}
-
-		$this->_template_rows = $match['1'];
-		$this->_template = str_replace($match['0'], '{rows}', $this->_template);
+		$this->_template_rows = $match[1];
+		$this->_template = str_replace($match[0], '{rows}', $this->_template);
 	}
 
 }
@@ -377,8 +349,6 @@ class CI_Unit_test {
 /**
  * Helper functions to test boolean true/false
  *
- *
- * @access	private
  * @return	bool
  */
 function is_true($test)
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 826bcceb8..89575c849 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -1,4 +1,4 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -593,16 +593,17 @@ class CI_Upload {
 	/**
 	 * Verify that the filetype is allowed
 	 *
+	 * @param	bool
 	 * @return	bool
 	 */
 	public function is_allowed_filetype($ignore_mime = FALSE)
 	{
-		if ($this->allowed_types == '*')
+		if ($this->allowed_types === '*')
 		{
 			return TRUE;
 		}
 
-		if (count($this->allowed_types) == 0 OR ! is_array($this->allowed_types))
+		if ( ! is_array($this->allowed_types) OR count($this->allowed_types) === 0)
 		{
 			$this->set_error('upload_no_file_types');
 			return FALSE;
@@ -618,12 +619,9 @@ class CI_Upload {
 		// Images get some additional checks
 		$image_types = array('gif', 'jpg', 'jpeg', 'png', 'jpe');
 
-		if (in_array($ext, $image_types))
+		if (in_array($ext, $image_types) && @getimagesize($this->file_temp) === FALSE)
 		{
-			if (getimagesize($this->file_temp) === FALSE)
-			{
-				return FALSE;
-			}
+			return FALSE;
 		}
 
 		if ($ignore_mime === TRUE)
@@ -640,7 +638,7 @@ class CI_Upload {
 				return TRUE;
 			}
 		}
-		elseif ($mime == $this->file_type)
+		elseif ($mime === $this->file_type)
 		{
 				return TRUE;
 		}
@@ -960,7 +958,7 @@ class CI_Upload {
 			}
 			elseif (is_file(APPPATH.'config/mimes.php'))
 			{
-				include(APPPATH.'config//mimes.php');
+				include(APPPATH.'config/mimes.php');
 			}
 			else
 			{
@@ -1026,47 +1024,104 @@ class CI_Upload {
 	 */
 	protected function _file_mime_type($file)
 	{
-		// Use if the Fileinfo extension, if available (only versions above 5.3 support the FILEINFO_MIME_TYPE flag)
-		if ( (float) substr(phpversion(), 0, 3) >= 5.3 && function_exists('finfo_file'))
+		// We'll need this to validate the MIME info string (e.g. text/plain; charset=us-ascii)
+		$regexp = '/^([a-z\-]+\/[a-z0-9\-\.\+]+)(;\s.+)?$/';
+
+		/* Fileinfo extension - most reliable method
+		 *
+		 * Unfortunately, prior to PHP 5.3 - it's only available as a PECL extension and the
+		 * more convenient FILEINFO_MIME_TYPE flag doesn't exist.
+		 */
+		if (function_exists('finfo_file'))
 		{
-			$finfo = new finfo(FILEINFO_MIME_TYPE);
-			if ($finfo !== FALSE) // This is possible, if there is no magic MIME database file found on the system
+			$finfo = finfo_open(FILEINFO_MIME);
+			if (is_resource($finfo)) // It is possible that a FALSE value is returned, if there is no magic MIME database file found on the system
 			{
-				$file_type = $finfo->file($file['tmp_name']);
+				$mime = @finfo_file($finfo, $file['tmp_name']);
+				finfo_close($finfo);
 
 				/* According to the comments section of the PHP manual page,
 				 * it is possible that this function returns an empty string
 				 * for some files (e.g. if they don't exist in the magic MIME database)
 				 */
-				if (strlen($file_type) > 1)
+				if (is_string($mime) && preg_match($regexp, $mime, $matches))
 				{
-					$this->file_type = $file_type;
+					$this->file_type = $matches[1];
 					return;
 				}
 			}
 		}
 
-		// Fall back to the deprecated mime_content_type(), if available
-		if (function_exists('mime_content_type'))
-		{
-			$this->file_type = @mime_content_type($file['tmp_name']);
-			return;
-		}
-
-		/* This is an ugly hack, but UNIX-type systems provide a native way to detect the file type,
-		 * which is still more secure than depending on the value of $_FILES[$field]['type'].
+		/* This is an ugly hack, but UNIX-type systems provide a "native" way to detect the file type,
+		 * which is still more secure than depending on the value of $_FILES[$field]['type'], and as it
+		 * was reported in issue #750 (https://github.com/EllisLab/CodeIgniter/issues/750) - it's better
+		 * than mime_content_type() as well, hence the attempts to try calling the command line with
+		 * three different functions.
 		 *
 		 * Notes:
-		 *	- a 'W' in the substr() expression bellow, would mean that we're using Windows
-		 *	- many system admins would disable the exec() function due to security concerns, hence the function_exists() check
+		 *	- the DIRECTORY_SEPARATOR comparison ensures that we're not on a Windows system
+		 *	- many system admins would disable the exec(), shell_exec(), popen() and similar functions
+		 *	  due to security concerns, hence the function_exists() checks
 		 */
-		if (DIRECTORY_SEPARATOR !== '\\' && function_exists('exec'))
+		if (DIRECTORY_SEPARATOR !== '\\')
+		{
+			$cmd = 'file --brief --mime ' . escapeshellarg($file['tmp_name']) . ' 2>&1';
+
+			if (function_exists('exec'))
+			{
+				/* This might look confusing, as $mime is being populated with all of the output when set in the second parameter.
+				 * However, we only neeed the last line, which is the actual return value of exec(), and as such - it overwrites
+				 * anything that could already be set for $mime previously. This effectively makes the second parameter a dummy
+				 * value, which is only put to allow us to get the return status code.
+				 */
+				$mime = @exec($cmd, $mime, $return_status);
+				if ($return_status === 0 && is_string($mime) && preg_match($regexp, $mime, $matches))
+				{
+					$this->file_type = $matches[1];
+					return;
+				}
+			}
+
+			if ( (bool) @ini_get('safe_mode') === FALSE && function_exists('shell_exec'))
+			{
+				$mime = @shell_exec($cmd);
+				if (strlen($mime) > 0)
+				{
+					$mime = explode("\n", trim($mime));
+					if (preg_match($regexp, $mime[(count($mime) - 1)], $matches))
+					{
+						$this->file_type = $matches[1];
+						return;
+					}
+				}
+			}
+
+			if (function_exists('popen'))
+			{
+				$proc = @popen($cmd, 'r');
+				if (is_resource($proc))
+				{
+					$mime = @fread($proc, 512);
+					@pclose($proc);
+					if ($mime !== FALSE)
+					{
+						$mime = explode("\n", trim($mime));
+						if (preg_match($regexp, $mime[(count($mime) - 1)], $matches))
+						{
+							$this->file_type = $matches[1];
+							return;
+						}
+					}
+				}
+			}
+		}
+
+		// Fall back to the deprecated mime_content_type(), if available (still better than $_FILES[$field]['type'])
+		if (function_exists('mime_content_type'))
 		{
-			$output = array();
-			@exec('file --brief --mime-type ' . escapeshellarg($file['tmp_path']), $output, $return_code);
-			if ($return_code === 0 && strlen($output[0]) > 0) // A return status code != 0 would mean failed execution
+			$this->file_type = @mime_content_type($file['tmp_name']);
+			if (strlen($this->file_type) > 0) // It's possible that mime_content_type() returns FALSE or an empty string
 			{
-				$this->file_type = rtrim($output[0]);
 				return;
 			}
 		}
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index a007acec8..cd644c00d 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -40,32 +40,31 @@
  */
 class CI_User_agent {
 
-	var $agent		= NULL;
+	public $agent		= NULL;
 
-	var $is_browser	= FALSE;
-	var $is_robot	= FALSE;
-	var $is_mobile	= FALSE;
+	public $is_browser	= FALSE;
+	public $is_robot	= FALSE;
+	public $is_mobile	= FALSE;
 
-	var $languages	= array();
-	var $charsets	= array();
+	public $languages	= array();
+	public $charsets	= array();
 
-	var $platforms	= array();
-	var $browsers	= array();
-	var $mobiles	= array();
-	var $robots		= array();
+	public $platforms	= array();
+	public $browsers	= array();
+	public $mobiles		= array();
+	public $robots		= array();
 
-	var $platform	= '';
-	var $browser	= '';
-	var $version	= '';
-	var $mobile		= '';
-	var $robot		= '';
+	public $platform	= '';
+	public $browser		= '';
+	public $version		= '';
+	public $mobile		= '';
+	public $robot		= '';
 
 	/**
 	 * Constructor
 	 *
 	 * Sets the User Agent and runs the compilation routine
 	 *
-	 * @access	public
 	 * @return	void
 	 */
 	public function __construct()
@@ -91,10 +90,9 @@ class CI_User_agent {
 	/**
 	 * Compile the User Agent Data
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	private function _load_agent_file()
+	protected function _load_agent_file()
 	{
 		if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php'))
 		{
@@ -147,10 +145,9 @@ class CI_User_agent {
 	/**
 	 * Compile the User Agent Data
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	private function _compile_data()
+	protected function _compile_data()
 	{
 		$this->_set_platform();
 
@@ -168,10 +165,9 @@ class CI_User_agent {
 	/**
 	 * Set the Platform
 	 *
-	 * @access	private
 	 * @return	mixed
 	 */
-	private function _set_platform()
+	protected function _set_platform()
 	{
 		if (is_array($this->platforms) AND count($this->platforms) > 0)
 		{
@@ -192,10 +188,9 @@ class CI_User_agent {
 	/**
 	 * Set the Browser
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	private function _set_browser()
+	protected function _set_browser()
 	{
 		if (is_array($this->browsers) AND count($this->browsers) > 0)
 		{
@@ -219,10 +214,9 @@ class CI_User_agent {
 	/**
 	 * Set the Robot
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	private function _set_robot()
+	protected function _set_robot()
 	{
 		if (is_array($this->robots) AND count($this->robots) > 0)
 		{
@@ -244,10 +238,9 @@ class CI_User_agent {
 	/**
 	 * Set the Mobile Device
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	private function _set_mobile()
+	protected function _set_mobile()
 	{
 		if (is_array($this->mobiles) AND count($this->mobiles) > 0)
 		{
@@ -269,19 +262,16 @@ class CI_User_agent {
 	/**
 	 * Set the accepted languages
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	private function _set_languages()
+	protected function _set_languages()
 	{
-		if ((count($this->languages) == 0) AND isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) AND $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '')
+		if ((count($this->languages) === 0) AND isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) AND $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '')
 		{
-			$languages = preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE'])));
-
-			$this->languages = explode(',', $languages);
+			$this->languages = explode(',', preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE']))));
 		}
 
-		if (count($this->languages) == 0)
+		if (count($this->languages) === 0)
 		{
 			$this->languages = array('Undefined');
 		}
@@ -292,19 +282,16 @@ class CI_User_agent {
 	/**
 	 * Set the accepted character sets
 	 *
-	 * @access	private
 	 * @return	void
 	 */
-	private function _set_charsets()
+	protected function _set_charsets()
 	{
-		if ((count($this->charsets) == 0) AND isset($_SERVER['HTTP_ACCEPT_CHARSET']) AND $_SERVER['HTTP_ACCEPT_CHARSET'] != '')
+		if ((count($this->charsets) === 0) AND isset($_SERVER['HTTP_ACCEPT_CHARSET']) AND $_SERVER['HTTP_ACCEPT_CHARSET'] != '')
 		{
-			$charsets = preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET'])));
-
-			$this->charsets = explode(',', $charsets);
+			$this->charsets = explode(',', preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET']))));
 		}
 
-		if (count($this->charsets) == 0)
+		if (count($this->charsets) === 0)
 		{
 			$this->charsets = array('Undefined');
 		}
@@ -315,7 +302,6 @@ class CI_User_agent {
 	/**
 	 * Is Browser
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function is_browser($key = NULL)
@@ -340,7 +326,6 @@ class CI_User_agent {
 	/**
 	 * Is Robot
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function is_robot($key = NULL)
@@ -365,7 +350,6 @@ class CI_User_agent {
 	/**
 	 * Is Mobile
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function is_mobile($key = NULL)
@@ -390,16 +374,11 @@ class CI_User_agent {
 	/**
 	 * Is this a referral from another site?
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function is_referral()
 	{
-		if ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '')
-		{
-			return FALSE;
-		}
-		return TRUE;
+		return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? FALSE : TRUE;
 	}
 
 	// --------------------------------------------------------------------
@@ -407,7 +386,6 @@ class CI_User_agent {
 	/**
 	 * Agent String
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function agent_string()
@@ -420,7 +398,6 @@ class CI_User_agent {
 	/**
 	 * Get Platform
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function platform()
@@ -433,7 +410,6 @@ class CI_User_agent {
 	/**
 	 * Get Browser Name
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function browser()
@@ -446,7 +422,6 @@ class CI_User_agent {
 	/**
 	 * Get the Browser Version
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function version()
@@ -459,7 +434,6 @@ class CI_User_agent {
 	/**
 	 * Get The Robot Name
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function robot()
@@ -471,7 +445,6 @@ class CI_User_agent {
 	/**
 	 * Get the Mobile Device
 	 *
-	 * @access	public
 	 * @return	string
 	 */
 	public function mobile()
@@ -484,7 +457,6 @@ class CI_User_agent {
 	/**
 	 * Get the referrer
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function referrer()
@@ -497,12 +469,11 @@ class CI_User_agent {
 	/**
 	 * Get the accepted languages
 	 *
-	 * @access	public
 	 * @return	array
 	 */
 	public function languages()
 	{
-		if (count($this->languages) == 0)
+		if (count($this->languages) === 0)
 		{
 			$this->_set_languages();
 		}
@@ -515,12 +486,11 @@ class CI_User_agent {
 	/**
 	 * Get the accepted Character Sets
 	 *
-	 * @access	public
 	 * @return	array
 	 */
 	public function charsets()
 	{
-		if (count($this->charsets) == 0)
+		if (count($this->charsets) === 0)
 		{
 			$this->_set_charsets();
 		}
@@ -533,7 +503,6 @@ class CI_User_agent {
 	/**
 	 * Test for a particular language
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function accept_lang($lang = 'en')
@@ -546,7 +515,6 @@ class CI_User_agent {
 	/**
 	 * Test for a particular character set
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function accept_charset($charset = 'utf-8')
@@ -556,6 +524,5 @@ class CI_User_agent {
 
 }
 
-
 /* End of file User_agent.php */
 /* Location: ./system/libraries/User_agent.php */
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 7b1e3fa6e..730a0fc49 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -44,38 +44,38 @@ if ( ! function_exists('xml_parser_create'))
  */
 class CI_Xmlrpc {
 
-	var $debug			= FALSE;	// Debugging on or off
-	var $xmlrpcI4		= 'i4';
-	var $xmlrpcInt		= 'int';
-	var $xmlrpcBoolean	= 'boolean';
-	var $xmlrpcDouble	= 'double';
-	var $xmlrpcString	= 'string';
-	var $xmlrpcDateTime	= 'dateTime.iso8601';
-	var $xmlrpcBase64	= 'base64';
-	var $xmlrpcArray	= 'array';
-	var $xmlrpcStruct	= 'struct';
-
-	var $xmlrpcTypes	= array();
-	var $valid_parents	= array();
-	var $xmlrpcerr		= array();	// Response numbers
-	var $xmlrpcstr		= array();  // Response strings
-
-	var $xmlrpc_defencoding = 'UTF-8';
-	var $xmlrpcName			= 'XML-RPC for CodeIgniter';
-	var $xmlrpcVersion		= '1.1';
-	var $xmlrpcerruser		= 800; // Start of user errors
-	var $xmlrpcerrxml		= 100; // Start of XML Parse errors
-	var $xmlrpc_backslash	= ''; // formulate backslashes for escaping regexp
-
-	var $client;
-	var $method;
-	var $data;
-	var $message			= '';
-	var $error				= '';		// Error string for request
-	var $result;
-	var $response			= array();  // Response from remote server
-
-	var $xss_clean			= TRUE;
+	public $debug		= FALSE;	// Debugging on or off
+	public $xmlrpcI4	= 'i4';
+	public $xmlrpcInt	= 'int';
+	public $xmlrpcBoolean	= 'boolean';
+	public $xmlrpcDouble	= 'double';
+	public $xmlrpcString	= 'string';
+	public $xmlrpcDateTime	= 'dateTime.iso8601';
+	public $xmlrpcBase64	= 'base64';
+	public $xmlrpcArray	= 'array';
+	public $xmlrpcStruct	= 'struct';
+
+	public $xmlrpcTypes	= array();
+	public $valid_parents	= array();
+	public $xmlrpcerr		= array(); // Response numbers
+	public $xmlrpcstr		= array(); // Response strings
+
+	public $xmlrpc_defencoding	= 'UTF-8';
+	public $xmlrpcName		= 'XML-RPC for CodeIgniter';
+	public $xmlrpcVersion		= '1.1';
+	public $xmlrpcerruser		= 800; // Start of user errors
+	public $xmlrpcerrxml		= 100; // Start of XML Parse errors
+	public $xmlrpc_backslash	= ''; // formulate backslashes for escaping regexp
+
+	public $client;
+	public $method;
+	public $data;
+	public $message			= '';
+	public $error			= '';	// Error string for request
+	public $result;
+	public $response		= array();  // Response from remote server
+
+	public $xss_clean		= TRUE;
 
 	//-------------------------------------
 	//  VALUES THAT MULTIPLE CLASSES NEED
@@ -83,7 +83,7 @@ class CI_Xmlrpc {
 
 	public function __construct($config = array())
 	{
-		$this->xmlrpcName		= $this->xmlrpcName;
+		$this->xmlrpcName	= $this->xmlrpcName;
 		$this->xmlrpc_backslash = chr(92).chr(92);
 
 		// Types for info sent back and forth
@@ -101,23 +101,23 @@ class CI_Xmlrpc {
 
 		// Array of Valid Parents for Various XML-RPC elements
 		$this->valid_parents = array('BOOLEAN'			=> array('VALUE'),
-									 'I4'				=> array('VALUE'),
-									 'INT'				=> array('VALUE'),
-									 'STRING'			=> array('VALUE'),
-									 'DOUBLE'			=> array('VALUE'),
-									 'DATETIME.ISO8601'	=> array('VALUE'),
-									 'BASE64'			=> array('VALUE'),
-									 'ARRAY'			=> array('VALUE'),
-									 'STRUCT'			=> array('VALUE'),
-									 'PARAM'			=> array('PARAMS'),
-									 'METHODNAME'		=> array('METHODCALL'),
-									 'PARAMS'			=> array('METHODCALL', 'METHODRESPONSE'),
-									 'MEMBER'			=> array('STRUCT'),
-									 'NAME'				=> array('MEMBER'),
-									 'DATA'				=> array('ARRAY'),
-									 'FAULT'			=> array('METHODRESPONSE'),
-									 'VALUE'			=> array('MEMBER', 'DATA', 'PARAM', 'FAULT')
-									 );
+						'I4'				=> array('VALUE'),
+						'INT'				=> array('VALUE'),
+						'STRING'			=> array('VALUE'),
+						'DOUBLE'			=> array('VALUE'),
+						'DATETIME.ISO8601'	=> array('VALUE'),
+						'BASE64'			=> array('VALUE'),
+						'ARRAY'			=> array('VALUE'),
+						'STRUCT'			=> array('VALUE'),
+						'PARAM'			=> array('PARAMS'),
+						'METHODNAME'		=> array('METHODCALL'),
+						'PARAMS'			=> array('METHODCALL', 'METHODRESPONSE'),
+						'MEMBER'			=> array('STRUCT'),
+						'NAME'				=> array('MEMBER'),
+						'DATA'				=> array('ARRAY'),
+						'FAULT'			=> array('METHODRESPONSE'),
+						'VALUE'			=> array('MEMBER', 'DATA', 'PARAM', 'FAULT')
+					 );
 
 
 		// XML-RPC Responses
@@ -128,7 +128,7 @@ class CI_Xmlrpc {
 		$this->xmlrpcerr['incorrect_params'] = '3';
 		$this->xmlrpcstr['incorrect_params'] = 'Incorrect parameters were passed to method';
 		$this->xmlrpcerr['introspect_unknown'] = '4';
-		$this->xmlrpcstr['introspect_unknown'] = "Cannot inspect signature for request: method unknown";
+		$this->xmlrpcstr['introspect_unknown'] = 'Cannot inspect signature for request: method unknown';
 		$this->xmlrpcerr['http_error'] = '5';
 		$this->xmlrpcstr['http_error'] = "Did not receive a '200 OK' response from remote server.";
 		$this->xmlrpcerr['no_data'] = '6';
@@ -144,7 +144,7 @@ class CI_Xmlrpc {
 	//  Initialize Prefs
 	//-------------------------------------
 
-	function initialize($config = array())
+	public function initialize($config = array())
 	{
 		if (count($config) > 0)
 		{
@@ -163,9 +163,9 @@ class CI_Xmlrpc {
 	//  Take URL and parse it
 	//-------------------------------------
 
-	function server($url, $port=80)
+	public function server($url, $port=80)
 	{
-		if (substr($url, 0, 4) != "http")
+		if (strpos($url, 'http') !== 0)
 		{
 			$url = "http://".$url;
 		}
@@ -187,7 +187,7 @@ class CI_Xmlrpc {
 	//  Set Timeout
 	//-------------------------------------
 
-	function timeout($seconds=5)
+	public function timeout($seconds = 5)
 	{
 		if ( ! is_null($this->client) && is_int($seconds))
 		{
@@ -200,7 +200,7 @@ class CI_Xmlrpc {
 	//  Set Methods
 	//-------------------------------------
 
-	function method($function)
+	public function method($function)
 	{
 		$this->method = $function;
 	}
@@ -210,7 +210,7 @@ class CI_Xmlrpc {
 	//  Take Array of Data and Create Objects
 	//-------------------------------------
 
-	function request($incoming)
+	public function request($incoming)
 	{
 		if ( ! is_array($incoming))
 		{
@@ -231,42 +231,34 @@ class CI_Xmlrpc {
 	//  Set Debug
 	//-------------------------------------
 
-	function set_debug($flag = TRUE)
+	public function set_debug($flag = TRUE)
 	{
-		$this->debug = ($flag == TRUE) ? TRUE : FALSE;
+		$this->debug = ($flag == TRUE);
 	}
 
 	//-------------------------------------
 	//  Values Parsing
 	//-------------------------------------
 
-	function values_parsing($value, $return = FALSE)
+	public function values_parsing($value, $return = FALSE)
 	{
 		if (is_array($value) && array_key_exists(0, $value))
 		{
-			if ( ! isset($value['1']) OR ( ! isset($this->xmlrpcTypes[$value['1']])))
+			if ( ! isset($value[1]) OR ( ! isset($this->xmlrpcTypes[$value[1]])))
 			{
-				if (is_array($value[0]))
-				{
-					$temp = new XML_RPC_Values($value['0'], 'array');
-				}
-				else
-				{
-					$temp = new XML_RPC_Values($value['0'], 'string');
-				}
+				$temp = new XML_RPC_Values($value[0], (is_array($value[0]) ? 'array' : 'string'));
 			}
-			elseif (is_array($value['0']) && ($value['1'] == 'struct' OR $value['1'] == 'array'))
+			else
 			{
-				while (list($k) = each($value['0']))
+				if (is_array($value[0]) && ($value[1] == 'struct' OR $value[1] == 'array'))
 				{
-					$value['0'][$k] = $this->values_parsing($value['0'][$k], TRUE);
+					while (list($k) = each($value[0]))
+					{
+						$value[0][$k] = $this->values_parsing($value[0][$k], TRUE);
+					}
 				}
 
-				$temp = new XML_RPC_Values($value['0'], $value['1']);
-			}
-			else
-			{
-				$temp = new XML_RPC_Values($value['0'], $value['1']);
+				$temp = new XML_RPC_Values($value[0], $value[1]);
 			}
 		}
 		else
@@ -283,24 +275,18 @@ class CI_Xmlrpc {
 	//  Sends XML-RPC Request
 	//-------------------------------------
 
-	function send_request()
+	public function send_request()
 	{
 		$this->message = new XML_RPC_Message($this->method,$this->data);
 		$this->message->debug = $this->debug;
 
-		if ( ! $this->result = $this->client->send($this->message))
-		{
-			$this->error = $this->result->errstr;
-			return FALSE;
-		}
-		elseif ( ! is_object($this->result->val))
+		if ( ! $this->result = $this->client->send($this->message) OR ! is_object($this->result->val))
 		{
 			$this->error = $this->result->errstr;
 			return FALSE;
 		}
 
 		$this->response = $this->result->decode();
-
 		return TRUE;
 	}
 	// END
@@ -309,7 +295,7 @@ class CI_Xmlrpc {
 	//  Returns Error
 	//-------------------------------------
 
-	function display_error()
+	public function display_error()
 	{
 		return $this->error;
 	}
@@ -319,7 +305,7 @@ class CI_Xmlrpc {
 	//  Returns Remote Server Response
 	//-------------------------------------
 
-	function display_response()
+	public function display_response()
 	{
 		return $this->response;
 	}
@@ -329,9 +315,9 @@ class CI_Xmlrpc {
 	//  Sends an Error Message for Server Request
 	//-------------------------------------
 
-	function send_error_message($number, $message)
+	public function send_error_message($number, $message)
 	{
-		return new XML_RPC_Response('0',$number, $message);
+		return new XML_RPC_Response(0, $number, $message);
 	}
 	// END
 
@@ -340,14 +326,11 @@ class CI_Xmlrpc {
 	//  Send Response for Server Request
 	//-------------------------------------
 
-	function send_response($response)
+	public function send_response($response)
 	{
 		// $response should be array of values, which will be parsed
 		// based on their data and type into a valid group of XML-RPC values
-
-		$response = $this->values_parsing($response);
-
-		return new XML_RPC_Response($response);
+		return new XML_RPC_Response($this->values_parsing($response));
 	}
 	// END
 
@@ -364,13 +347,13 @@ class CI_Xmlrpc {
  */
 class XML_RPC_Client extends CI_Xmlrpc
 {
-	var $path			= '';
-	var $server			= '';
-	var $port			= 80;
-	var $errno			= '';
-	var $errstring		= '';
-	var $timeout		= 5;
-	var $no_multicall	= FALSE;
+	public $path			= '';
+	public $server			= '';
+	public $port			= 80;
+	public $errno			= '';
+	public $errstring		= '';
+	public $timeout		= 5;
+	public $no_multicall	= FALSE;
 
 	public function __construct($path, $server, $port=80)
 	{
@@ -381,7 +364,7 @@ class XML_RPC_Client extends CI_Xmlrpc
 		$this->path = $path;
 	}
 
-	function send($msg)
+	public function send($msg)
 	{
 		if (is_array($msg))
 		{
@@ -393,7 +376,7 @@ class XML_RPC_Client extends CI_Xmlrpc
 		return $this->sendPayload($msg);
 	}
 
-	function sendPayload($msg)
+	public function sendPayload($msg)
 	{
 		$fp = @fsockopen($this->server, $this->port,$this->errno, $this->errstr, $this->timeout);
 
@@ -411,12 +394,12 @@ class XML_RPC_Client extends CI_Xmlrpc
 		}
 
 		$r = "\r\n";
-		$op  = "POST {$this->path} HTTP/1.0$r";
-		$op .= "Host: {$this->server}$r";
-		$op .= "Content-Type: text/xml$r";
-		$op .= "User-Agent: {$this->xmlrpcName}$r";
-		$op .= "Content-Length: ".strlen($msg->payload). "$r$r";
-		$op .= $msg->payload;
+		$op = "POST {$this->path} HTTP/1.0$r"
+			. "Host: {$this->server}$r"
+			. "Content-Type: text/xml$r"
+			. "User-Agent: {$this->xmlrpcName}$r"
+			. "Content-Length: ".strlen($msg->payload)."$r$r"
+			. $msg->payload;
 
 
 		if ( ! fputs($fp, $op, strlen($op)))
@@ -430,8 +413,8 @@ class XML_RPC_Client extends CI_Xmlrpc
 		return $resp;
 	}
 
-} // end class XML_RPC_Client
-
+}
+// end class XML_RPC_Client
 
 /**
  * XML-RPC Response class
@@ -442,11 +425,11 @@ class XML_RPC_Client extends CI_Xmlrpc
  */
 class XML_RPC_Response
 {
-	var $val = 0;
-	var $errno = 0;
-	var $errstr = '';
-	var $headers = array();
-	var $xss_clean = TRUE;
+	public $val = 0;
+	public $errno = 0;
+	public $errstr = '';
+	public $headers = array();
+	public $xss_clean = TRUE;
 
 	public function __construct($val, $code = 0, $fstr = '')
 	{
@@ -454,7 +437,14 @@ class XML_RPC_Response
 		{
 			// error
 			$this->errno = $code;
-			$this->errstr = htmlentities($fstr);
+			if ( ! is_php('5.4'))
+			{
+				$this->errstr = htmlspecialchars($fstr, ENT_NOQUOTES, 'UTF-8');
+			}
+			else
+			{
+				$this->errstr = htmlspecialchars($fstr, ENT_XML1 | ENT_NOQUOTES, 'UTF-8');
+			}
 		}
 		else if ( ! is_object($val))
 		{
@@ -468,27 +458,26 @@ class XML_RPC_Response
 		}
 	}
 
-	function faultCode()
+	public function faultCode()
 	{
 		return $this->errno;
 	}
 
-	function faultString()
+	public function faultString()
 	{
 		return $this->errstr;
 	}
 
-	function value()
+	public function value()
 	{
 		return $this->val;
 	}
 
-	function prepare_response()
+	public function prepare_response()
 	{
-		$result = "<methodResponse>\n";
-		if ($this->errno)
-		{
-			$result .= '<fault>
+		return "<methodResponse>\n"
+			. ($this->errno
+			? '<fault>
 	<value>
 		<struct>
 			<member>
@@ -501,23 +490,16 @@ class XML_RPC_Response
 			</member>
 		</struct>
 	</value>
-</fault>';
-		}
-		else
-		{
-			$result .= "<params>\n<param>\n" .
-					$this->val->serialize_class() .
-					"</param>\n</params>";
-		}
-		$result .= "\n</methodResponse>";
-		return $result;
+</fault>'
+			: "<params>\n<param>\n".$this->val->serialize_class()."</param>\n</params>")
+			. "\n</methodResponse>";
 	}
 
-	function decode($array=FALSE)
+	public function decode($array = FALSE)
 	{
 		$CI =& get_instance();
-		
-		if ($array !== FALSE && is_array($array))
+
+		if (is_array($array))
 		{
 			while (list($key) = each($array))
 			{
@@ -556,7 +538,7 @@ class XML_RPC_Response
 	//  XML-RPC Object to PHP Types
 	//-------------------------------------
 
-	function xmlrpc_decoder($xmlrpc_val)
+	public function xmlrpc_decoder($xmlrpc_val)
 	{
 		$kind = $xmlrpc_val->kindOf();
 
@@ -567,12 +549,10 @@ class XML_RPC_Response
 		elseif ($kind == 'array')
 		{
 			reset($xmlrpc_val->me);
-			list($a,$b) = each($xmlrpc_val->me);
-			$size = count($b);
-
+			$b = current($xmlrpc_val->me);
 			$arr = array();
 
-			for ($i = 0; $i < $size; $i++)
+			for ($i = 0, $size = count($b); $i < $size; $i++)
 			{
 				$arr[] = $this->xmlrpc_decoder($xmlrpc_val->me['array'][$i]);
 			}
@@ -596,7 +576,7 @@ class XML_RPC_Response
 	//  ISO-8601 time to server or UTC time
 	//-------------------------------------
 
-	function iso8601_decode($time, $utc=0)
+	public function iso8601_decode($time, $utc = 0)
 	{
 		// return a timet in the localtime, or UTC
 		$t = 0;
@@ -608,9 +588,8 @@ class XML_RPC_Response
 		return $t;
 	}
 
-} // End Response Class
-
-
+}
+// End Response Class
 
 /**
  * XML-RPC Message class
@@ -621,10 +600,10 @@ class XML_RPC_Response
  */
 class XML_RPC_Message extends CI_Xmlrpc
 {
-	var $payload;
-	var $method_name;
-	var $params			= array();
-	var $xh				= array();
+	public $payload;
+	public $method_name;
+	public $params			= array();
+	public $xh				= array();
 
 	public function __construct($method, $pars=0)
 	{
@@ -633,7 +612,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 		$this->method_name = $method;
 		if (is_array($pars) && count($pars) > 0)
 		{
-			for ($i=0; $i<count($pars); $i++)
+			for ($i = 0, $c = count($pars); $i < $c; $i++)
 			{
 				// $pars[$i] = XML_RPC_Values
 				$this->params[] = $pars[$i];
@@ -645,13 +624,13 @@ class XML_RPC_Message extends CI_Xmlrpc
 	//  Create Payload to Send
 	//-------------------------------------
 
-	function createPayload()
+	public function createPayload()
 	{
-		$this->payload = "<?xml version=\"1.0\"?".">\r\n<methodCall>\r\n";
-		$this->payload .= '<methodName>' . $this->method_name . "</methodName>\r\n";
-		$this->payload .= "<params>\r\n";
+		$this->payload = "<?xml version=\"1.0\"?".">\r\n<methodCall>\r\n"
+				. '<methodName>'.$this->method_name."</methodName>\r\n"
+				. "<params>\r\n";
 
-		for ($i=0; $i<count($this->params); $i++)
+		for ($i = 0, $c = count($this->params); $i < $c; $i++)
 		{
 			// $p = XML_RPC_Values
 			$p = $this->params[$i];
@@ -665,7 +644,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	//  Parse External XML-RPC Server's Response
 	//-------------------------------------
 
-	function parseResponse($fp)
+	public function parseResponse($fp)
 	{
 		$data = '';
 
@@ -680,16 +659,14 @@ class XML_RPC_Message extends CI_Xmlrpc
 
 		if ($this->debug === TRUE)
 		{
-			echo "<pre>";
-			echo "---DATA---\n" . htmlspecialchars($data) . "\n---END DATA---\n\n";
-			echo "</pre>";
+			echo "<pre>---DATA---\n".htmlspecialchars($data)."\n---END DATA---\n\n</pre>";
 		}
 
 		//-------------------------------------
 		//  Check for data
 		//-------------------------------------
 
-		if ($data == "")
+		if ($data === '')
 		{
 			error_log($this->xmlrpcstr['no_data']);
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['no_data'], $this->xmlrpcstr['no_data']);
@@ -701,7 +678,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 		//  Check for HTTP 200 Response
 		//-------------------------------------
 
-		if (strncmp($data, 'HTTP', 4) == 0 && ! preg_match('/^HTTP\/[0-9\.]+ 200 /', $data))
+		if (strncmp($data, 'HTTP', 4) === 0 && ! preg_match('/^HTTP\/[0-9\.]+ 200 /', $data))
 		{
 			$errstr= substr($data, 0, strpos($data, "\n")-1);
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['http_error'], $this->xmlrpcstr['http_error']. ' (' . $errstr . ')');
@@ -714,13 +691,14 @@ class XML_RPC_Message extends CI_Xmlrpc
 
 		$parser = xml_parser_create($this->xmlrpc_defencoding);
 
-		$this->xh[$parser]					= array();
-		$this->xh[$parser]['isf']			= 0;
-		$this->xh[$parser]['ac']			= '';
-		$this->xh[$parser]['headers']		= array();
-		$this->xh[$parser]['stack']			= array();
-		$this->xh[$parser]['valuestack']	= array();
-		$this->xh[$parser]['isf_reason']	= 0;
+		$this->xh[$parser] = array(
+						'isf' =>	0,
+						'ac' =>		'',
+						'headers' =>	array(),
+						'stack' =>	array(),
+						'valuestack' =>	array(),
+						'isf_reason' =>	0
+					);
 
 		xml_set_object($parser, $this);
 		xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
@@ -769,9 +747,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 		{
 			if ($this->debug === TRUE)
 			{
-				echo "---Invalid Return---\n";
-				echo $this->xh[$parser]['isf_reason'];
-				echo "---Invalid Return---\n\n";
+				echo "---Invalid Return---\n".$this->xh[$parser]['isf_reason']."---Invalid Return---\n\n";
 			}
 
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['invalid_return'],$this->xmlrpcstr['invalid_return'].' '.$this->xh[$parser]['isf_reason']);
@@ -801,9 +777,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 				echo "---END HEADERS---\n\n";
 			}
 
-			echo "---DATA---\n" . htmlspecialchars($data) . "\n---END DATA---\n\n";
-
-			echo "---PARSED---\n" ;
+			echo "---DATA---\n".htmlspecialchars($data)."\n---END DATA---\n\n---PARSED---\n";
 			var_dump($this->xh[$parser]['value']);
 			echo "\n---END PARSED---</pre>";
 		}
@@ -813,7 +787,6 @@ class XML_RPC_Message extends CI_Xmlrpc
 		//-------------------------------------
 
 		$v = $this->xh[$parser]['value'];
-
 		if ($this->xh[$parser]['isf'])
 		{
 			$errno_v = $v->me['struct']['faultCode'];
@@ -855,7 +828,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	//  Start Element Handler
 	//-------------------------------------
 
-	function open_tag($the_parser, $name, $attrs)
+	public function open_tag($the_parser, $name, $attrs)
 	{
 		// If invalid nesting, then return
 		if ($this->xh[$the_parser]['isf'] > 1) return;
@@ -957,7 +930,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	//  End Element Handler
 	//-------------------------------------
 
-	function closing_tag($the_parser, $name)
+	public function closing_tag($the_parser, $name)
 	{
 		if ($this->xh[$the_parser]['isf'] > 1) return;
 
@@ -1101,7 +1074,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	//  Parses Character Data
 	//-------------------------------------
 
-	function character_data($the_parser, $data)
+	public function character_data($the_parser, $data)
 	{
 		if ($this->xh[$the_parser]['isf'] > 1) return; // XML Fault found already
 
@@ -1123,13 +1096,16 @@ class XML_RPC_Message extends CI_Xmlrpc
 	}
 
 
-	function addParam($par) { $this->params[]=$par; }
+	public function addParam($par)
+	{
+		$this->params[] = $par;
+	}
 
-	function output_parameters($array=FALSE)
+	public function output_parameters($array = FALSE)
 	{
 		$CI =& get_instance();
-		
-		if ($array !== FALSE && is_array($array))
+
+		if (is_array($array))
 		{
 			while (list($key) = each($array))
 			{
@@ -1151,7 +1127,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 		{
 			$parameters = array();
 
-			for ($i = 0; $i < count($this->params); $i++)
+			for ($i = 0, $c = count($this->params); $i < $c; $i++)
 			{
 				$a_param = $this->decode_message($this->params[$i]);
 
@@ -1170,7 +1146,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	}
 
 
-	function decode_message($param)
+	public function decode_message($param)
 	{
 		$kind = $param->kindOf();
 
@@ -1181,11 +1157,10 @@ class XML_RPC_Message extends CI_Xmlrpc
 		elseif ($kind == 'array')
 		{
 			reset($param->me);
-			list($a,$b) = each($param->me);
-
+			$b = current($param->me);
 			$arr = array();
 
-			for($i = 0; $i < count($b); $i++)
+			for($i = 0, $c = count($b); $i < $c; $i++)
 			{
 				$arr[] = $this->decode_message($param->me['array'][$i]);
 			}
@@ -1195,7 +1170,6 @@ class XML_RPC_Message extends CI_Xmlrpc
 		elseif ($kind == 'struct')
 		{
 			reset($param->me['struct']);
-
 			$arr = array();
 
 			while (list($key,$value) = each($param->me['struct']))
@@ -1207,9 +1181,8 @@ class XML_RPC_Message extends CI_Xmlrpc
 		}
 	}
 
-} // End XML_RPC_Messages class
-
-
+}
+// End XML_RPC_Messages class
 
 /**
  * XML-RPC Values class
@@ -1220,10 +1193,10 @@ class XML_RPC_Message extends CI_Xmlrpc
  */
 class XML_RPC_Values extends CI_Xmlrpc
 {
-	var $me		= array();
-	var $mytype	= 0;
+	public $me	= array();
+	public $mytype	= 0;
 
-	public function __construct($val=-1, $type='')
+	public function __construct($val = -1, $type = '')
 	{
 		parent::__construct();
 
@@ -1246,7 +1219,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 		}
 	}
 
-	function addScalar($val, $type='string')
+	public function addScalar($val, $type = 'string')
 	{
 		$typeof = $this->xmlrpcTypes[$type];
 
@@ -1264,14 +1237,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 
 		if ($type == $this->xmlrpcBoolean)
 		{
-			if (strcasecmp($val,'true')==0 OR $val==1 OR ($val==true && strcasecmp($val,'false')))
-			{
-				$val = 1;
-			}
-			else
-			{
-				$val=0;
-			}
+			$val = (strcasecmp($val,'true') === 0 OR $val == 1 OR ($val == true && strcasecmp($val, 'false'))) ? 1 : 0;
 		}
 
 		if ($this->mytype == 2)
@@ -1290,7 +1256,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 		return 1;
 	}
 
-	function addArray($vals)
+	public function addArray($vals)
 	{
 		if ($this->mytype != 0)
 		{
@@ -1303,7 +1269,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 		return 1;
 	}
 
-	function addStruct($vals)
+	public function addStruct($vals)
 	{
 		if ($this->mytype != 0)
 		{
@@ -1315,7 +1281,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 		return 1;
 	}
 
-	function kindOf()
+	public function kindOf()
 	{
 		switch($this->mytype)
 		{
@@ -1333,7 +1299,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 		}
 	}
 
-	function serializedata($typ, $val)
+	public function serializedata($typ, $val)
 	{
 		$rs = '';
 
@@ -1345,20 +1311,18 @@ class XML_RPC_Values extends CI_Xmlrpc
 				reset($val);
 				while (list($key2, $val2) = each($val))
 				{
-					$rs .= "<member>\n<name>{$key2}</name>\n";
-					$rs .= $this->serializeval($val2);
-					$rs .= "</member>\n";
+					$rs .= "<member>\n<name>{$key2}</name>\n".$this->serializeval($val2)."</member>\n";
 				}
 				$rs .= '</struct>';
 			break;
 			case 2:
 				// array
 				$rs .= "<array>\n<data>\n";
-				for($i=0; $i < count($val); $i++)
+				for($i = 0, $c = count($val); $i < $c; $i++)
 				{
 					$rs .= $this->serializeval($val[$i]);
 				}
-				$rs.="</data>\n</array>\n";
+				$rs .= "</data>\n</array>\n";
 				break;
 			case 1:
 				// others
@@ -1383,26 +1347,24 @@ class XML_RPC_Values extends CI_Xmlrpc
 		return $rs;
 	}
 
-	function serialize_class()
+	public function serialize_class()
 	{
 		return $this->serializeval($this);
 	}
 
-	function serializeval($o)
+	public function serializeval($o)
 	{
 		$ar = $o->me;
 		reset($ar);
 
 		list($typ, $val) = each($ar);
-		$rs = "<value>\n".$this->serializedata($typ, $val)."</value>\n";
-		return $rs;
+		return "<value>\n".$this->serializedata($typ, $val)."</value>\n";
 	}
 
-	function scalarval()
+	public function scalarval()
 	{
 		reset($this->me);
-		list($a,$b) = each($this->me);
-		return $b;
+		return current($this->me);
 	}
 
 
@@ -1412,24 +1374,13 @@ class XML_RPC_Values extends CI_Xmlrpc
 
 	// Useful for sending time in XML-RPC
 
-	function iso8601_encode($time, $utc=0)
+	public function iso8601_encode($time, $utc = 0)
 	{
-		if ($utc == 1)
-		{
-			$t = strftime("%Y%m%dT%H:%i:%s", $time);
-		}
-		else
-		{
-			if (function_exists('gmstrftime'))
-				$t = gmstrftime("%Y%m%dT%H:%i:%s", $time);
-			else
-				$t = strftime("%Y%m%dT%H:%i:%s", $time - date('Z'));
-		}
-		return $t;
+		return ($utc) ? strftime('%Y%m%dT%H:%i:%s', $time) : gmstrftime('%Y%m%dT%H:%i:%s', $time);
 	}
 
 }
 // END XML_RPC_Values Class
 
 /* End of file Xmlrpc.php */
-/* Location: ./system/libraries/Xmlrpc.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Xmlrpc.php */
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index 587b75040..355d43f29 100644
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -48,12 +48,11 @@ if ( ! class_exists('CI_Xmlrpc'))
  */
 class CI_Xmlrpcs extends CI_Xmlrpc
 {
-	var $methods		= array();	//array of methods mapped to function names and signatures
-	var $debug_msg		= '';		// Debug Message
-	var $system_methods = array();	// XML RPC Server methods
-	var $controller_obj;
-
-	var $object			= FALSE;
+	public $methods		= array();	//array of methods mapped to function names and signatures
+	public $debug_msg	= '';		// Debug Message
+	public $system_methods	= array();	// XML RPC Server methods
+	public $controller_obj;
+	public $object		= FALSE;
 
 	/**
 	 * Constructor
@@ -80,7 +79,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	void
 	 */
-	function initialize($config=array())
+	public function initialize($config = array())
 	{
 		if (isset($config['functions']) && is_array($config['functions']))
 		{
@@ -111,26 +110,26 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @access	public
 	 * @return	void
 	 */
-	function set_system_methods()
+	public function set_system_methods()
 	{
 		$this->methods = array(
 					'system.listMethods'	 => array(
-													'function' => 'this.listMethods',
-													'signature' => array(array($this->xmlrpcArray, $this->xmlrpcString), array($this->xmlrpcArray)),
-													'docstring' => 'Returns an array of available methods on this server'),
-					'system.methodHelp'		 => array(
-													'function' => 'this.methodHelp',
-													'signature' => array(array($this->xmlrpcString, $this->xmlrpcString)),
-													'docstring' => 'Returns a documentation string for the specified method'),
+										'function' => 'this.listMethods',
+										'signature' => array(array($this->xmlrpcArray, $this->xmlrpcString), array($this->xmlrpcArray)),
+										'docstring' => 'Returns an array of available methods on this server'),
+					'system.methodHelp'	 => array(
+										'function' => 'this.methodHelp',
+										'signature' => array(array($this->xmlrpcString, $this->xmlrpcString)),
+										'docstring' => 'Returns a documentation string for the specified method'),
 					'system.methodSignature' => array(
-													'function' => 'this.methodSignature',
-													'signature' => array(array($this->xmlrpcArray, $this->xmlrpcString)),
-													'docstring' => 'Returns an array describing the return type and required parameters of a method'),
-					'system.multicall'		 => array(
-												'function' => 'this.multicall',
-												'signature' => array(array($this->xmlrpcArray, $this->xmlrpcArray)),
-												'docstring' => 'Combine multiple RPC calls in one request. See http://www.xmlrpc.com/discuss/msgReader$1208 for details')
-					);
+										'function' => 'this.methodSignature',
+										'signature' => array(array($this->xmlrpcArray, $this->xmlrpcString)),
+										'docstring' => 'Returns an array describing the return type and required parameters of a method'),
+					'system.multicall'	 => array(
+										'function' => 'this.multicall',
+										'signature' => array(array($this->xmlrpcArray, $this->xmlrpcArray)),
+										'docstring' => 'Combine multiple RPC calls in one request. See http://www.xmlrpc.com/discuss/msgReader$1208 for details')
+				);
 	}
 
 	// --------------------------------------------------------------------
@@ -141,12 +140,10 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @access	public
 	 * @return	void
 	 */
-	function serve()
+	public function serve()
 	{
 		$r = $this->parseRequest();
-		$payload  = '<?xml version="1.0" encoding="'.$this->xmlrpc_defencoding.'"?'.'>'."\n";
-		$payload .= $this->debug_msg;
-		$payload .= $r->prepare_response();
+		$payload = '<?xml version="1.0" encoding="'.$this->xmlrpc_defencoding.'"?'.'>'."\n".$this->debug_msg.$r->prepare_response();
 
 		header("Content-Type: text/xml");
 		header("Content-Length: ".strlen($payload));
@@ -165,7 +162,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	string	docstring
 	 * @return	void
 	 */
-	function add_to_map($methodname, $function, $sig, $doc)
+	public function add_to_map($methodname, $function, $sig, $doc)
 	{
 		$this->methods[$methodname] = array(
 			'function'  => $function,
@@ -183,7 +180,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	string	data
 	 * @return	object	xmlrpc response
 	 */
-	function parseRequest($data='')
+	public function parseRequest($data = '')
 	{
 		global $HTTP_RAW_POST_DATA;
 
@@ -203,13 +200,14 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		$parser = xml_parser_create($this->xmlrpc_defencoding);
 		$parser_object = new XML_RPC_Message("filler");
 
-		$parser_object->xh[$parser]					= array();
-		$parser_object->xh[$parser]['isf']			= 0;
-		$parser_object->xh[$parser]['isf_reason']	= '';
-		$parser_object->xh[$parser]['params']		= array();
-		$parser_object->xh[$parser]['stack']		= array();
-		$parser_object->xh[$parser]['valuestack']	= array();
-		$parser_object->xh[$parser]['method']		= '';
+		$parser_object->xh[$parser] = array(
+							'isf' =>	0,
+							'isf_reason' =>	'',
+							'params' =>	array(),
+							'stack' =>	array(),
+							'valuestack' =>	array(),
+							'method' =>	''
+						);
 
 		xml_set_object($parser, $parser_object);
 		xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
@@ -243,7 +241,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			$m = new XML_RPC_Message($parser_object->xh[$parser]['method']);
 			$plist='';
 
-			for ($i=0; $i < count($parser_object->xh[$parser]['params']); $i++)
+			for ($i = 0, $c = count($parser_object->xh[$parser]['params']); $i < $c; $i++)
 			{
 				if ($this->debug === TRUE)
 				{
@@ -255,9 +253,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 
 			if ($this->debug === TRUE)
 			{
-				echo "<pre>";
-				echo "---PLIST---\n" . $plist . "\n---PLIST END---\n\n";
-				echo "</pre>";
+				echo "<pre>---PLIST---\n".$plist."\n---PLIST END---\n\n</pre>";
 			}
 
 			$r = $this->_execute($m);
@@ -284,12 +280,12 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	object
 	 * @return	mixed
 	 */
-	function _execute($m)
+	protected function _execute($m)
 	{
 		$methName = $m->method_name;
 
 		// Check to see if it is a system call
-		$system_call = (strncmp($methName, 'system', 5) == 0) ? TRUE : FALSE;
+		$system_call = (strncmp($methName, 'system', 5) === 0);
 
 		if ($this->xss_clean == FALSE)
 		{
@@ -310,22 +306,20 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		//-------------------------------------
 
 		$method_parts = explode(".", $this->methods[$methName]['function']);
-		$objectCall = (isset($method_parts['1']) && $method_parts['1'] != "") ? TRUE : FALSE;
+		$objectCall = (isset($method_parts[1]) && $method_parts[1] != '');
 
 		if ($system_call === TRUE)
 		{
-			if ( ! is_callable(array($this,$method_parts['1'])))
+			if ( ! is_callable(array($this,$method_parts[1])))
 			{
 				return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
 			}
 		}
 		else
 		{
-			if ($objectCall && ! is_callable(array($method_parts['0'],$method_parts['1'])))
-			{
-				return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
-			}
-			elseif ( ! $objectCall && ! is_callable($this->methods[$methName]['function']))
+			if (($objectCall AND ! is_callable(array($method_parts[0], $method_parts[1])))
+				OR ( ! $objectCall AND ! is_callable($this->methods[$methName]['function']))
+			)
 			{
 				return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
 			}
@@ -338,13 +332,13 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		if (isset($this->methods[$methName]['signature']))
 		{
 			$sig = $this->methods[$methName]['signature'];
-			for ($i=0; $i<count($sig); $i++)
+			for ($i = 0, $c = count($sig); $i < $c; $i++)
 			{
 				$current_sig = $sig[$i];
 
-				if (count($current_sig) == count($m->params)+1)
+				if (count($current_sig) === count($m->params)+1)
 				{
-					for ($n=0; $n < count($m->params); $n++)
+					for ($n = 0, $mc = count($m->params); $n < $mc; $n++)
 					{
 						$p = $m->params[$n];
 						$pt = ($p->kindOf() == 'scalar') ? $p->scalarval() : $p->kindOf();
@@ -370,7 +364,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 
 		if ($objectCall === TRUE)
 		{
-			if ($method_parts[0] == "this" && $system_call == TRUE)
+			if ($method_parts[0] === 'this' && $system_call === TRUE)
 			{
 				return call_user_func(array($this, $method_parts[1]), $m);
 			}
@@ -379,11 +373,11 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 				if ($this->object === FALSE)
 				{
 					$CI =& get_instance();
-					return $CI->$method_parts['1']($m);
+					return $CI->$method_parts[1]($m);
 				}
 				else
 				{
-					return $this->object->$method_parts['1']($m);
+					return $this->object->$method_parts[1]($m);
 					//return call_user_func(array(&$method_parts['0'],$method_parts['1']), $m);
 				}
 			}
@@ -393,7 +387,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			return call_user_func($this->methods[$methName]['function'], $m);
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -403,7 +397,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	object
 	 */
-	function listMethods($m)
+	public function listMethods($m)
 	{
 		$v = new XML_RPC_Values();
 		$output = array();
@@ -421,7 +415,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		$v->addArray($output);
 		return new XML_RPC_Response($v);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -431,7 +425,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	object
 	 */
-	function methodSignature($m)
+	public function methodSignature($m)
 	{
 		$parameters = $m->output_parameters();
 		$method_name = $parameters[0];
@@ -443,15 +437,15 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 				$sigs = array();
 				$signature = $this->methods[$method_name]['signature'];
 
-				for ($i=0; $i < count($signature); $i++)
+				for ($i = 0, $c = count($signature); $i < $c; $i++)
 				{
 					$cursig = array();
 					$inSig = $signature[$i];
-					for ($j=0; $j<count($inSig); $j++)
+					for ($j = 0, $jc = count($inSig); $j < $jc; $j++)
 					{
 						$cursig[]= new XML_RPC_Values($inSig[$j], 'string');
 					}
-					$sigs[]= new XML_RPC_Values($cursig, 'array');
+					$sigs[] = new XML_RPC_Values($cursig, 'array');
 				}
 				$r = new XML_RPC_Response(new XML_RPC_Values($sigs, 'array'));
 			}
@@ -476,7 +470,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	object
 	 */
-	function methodHelp($m)
+	public function methodHelp($m)
 	{
 		$parameters = $m->output_parameters();
 		$method_name = $parameters[0];
@@ -492,7 +486,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			return new XML_RPC_Response(0, $this->xmlrpcerr['introspect_unknown'], $this->xmlrpcstr['introspect_unknown']);
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -502,7 +496,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	object
 	 */
-	function multicall($m)
+	public function multicall($m)
 	{
 		// Disabled
 		return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
@@ -519,7 +513,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			$m = new XML_RPC_Message($value[0]);
 			$plist='';
 
-			for ($i=0; $i < count($value[1]); $i++)
+			for ($i = 0, $c = count($value[1]); $i < $c; $i++)
 			{
 				$m->addParam(new XML_RPC_Values($value[1][$i], 'string'));
 			}
@@ -546,7 +540,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	object
 	 */
-	function multicall_error($err)
+	public function multicall_error($err)
 	{
 		$str  = is_string($err) ? $this->xmlrpcstr["multicall_${err}"] : $err->faultString();
 		$code = is_string($err) ? $this->xmlrpcerr["multicall_${err}"] : $err->faultCode();
@@ -566,7 +560,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	 * @param	mixed
 	 * @return	object
 	 */
-	function do_multicall($call)
+	public function do_multicall($call)
 	{
 		if ($call->kindOf() != 'struct')
 		{
@@ -597,11 +591,10 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			return $this->multicall_error('notarray');
 		}
 
-		list($a,$b)=each($params->me);
-		$numParams = count($b);
+		list($a,$b) = each($params->me);
 
 		$msg = new XML_RPC_Message($scalar_value);
-		for ($i = 0; $i < $numParams; $i++)
+		for ($i = 0, $numParams = count($b); $i < $numParams; $i++)
 		{
 			$msg->params[] = $params->me['array'][$i];
 		}
@@ -619,6 +612,5 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 }
 // END XML_RPC_Server class
 
-
 /* End of file Xmlrpcs.php */
-/* Location: ./system/libraries/Xmlrpcs.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Xmlrpcs.php */
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index 52f1bc3d0..50e84920e 100644
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/javascript/Jquery.php b/system/libraries/javascript/Jquery.php
index 4b8f76a10..03574c66e 100644
--- a/system/libraries/javascript/Jquery.php
+++ b/system/libraries/javascript/Jquery.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -18,7 +18,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,80 +36,77 @@
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/javascript.html
  */
- 
+
 class CI_Jquery extends CI_Javascript {
 
-	var $_javascript_folder = 'js';
-	var $jquery_code_for_load = array();
-	var $jquery_code_for_compile = array();
-	var $jquery_corner_active = FALSE;
-	var $jquery_table_sorter_active = FALSE;
-	var $jquery_table_sorter_pager_active = FALSE;
-	var $jquery_ajax_img = '';
+	protected $_javascript_folder = 'js';
+	public $jquery_code_for_load = array();
+	public $jquery_code_for_compile = array();
+	public $jquery_corner_active = FALSE;
+	public $jquery_table_sorter_active = FALSE;
+	public $jquery_table_sorter_pager_active = FALSE;
+	public $jquery_ajax_img = '';
 
 	public function __construct($params)
 	{
-		$this->CI =& get_instance();	
+		$this->CI =& get_instance();
 		extract($params);
 
 		if ($autoload === TRUE)
 		{
-			$this->script();			
+			$this->script();
 		}
-		
+
 		log_message('debug', "Jquery Class Initialized");
 	}
-	
-	// --------------------------------------------------------------------	 
+
+	// --------------------------------------------------------------------
 	// Event Code
-	// --------------------------------------------------------------------	
+	// --------------------------------------------------------------------
 
 	/**
 	 * Blur
 	 *
 	 * Outputs a jQuery blur event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _blur($element = 'this', $js = '')
+	protected function _blur($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'blur');
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Change
 	 *
 	 * Outputs a jQuery change event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _change($element = 'this', $js = '')
+	protected function _change($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'change');
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Click
 	 *
 	 * Outputs a jQuery click event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @param	boolean	whether or not to return false
 	 * @return	string
 	 */
-	function _click($element = 'this', $js = '', $ret_false = TRUE)
+	protected function _click($element = 'this', $js = '', $ret_false = TRUE)
 	{
 		if ( ! is_array($js))
 		{
@@ -125,70 +122,66 @@ class CI_Jquery extends CI_Javascript {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Double Click
 	 *
 	 * Outputs a jQuery dblclick event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _dblclick($element = 'this', $js = '')
+	protected function _dblclick($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'dblclick');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Error
 	 *
 	 * Outputs a jQuery error event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _error($element = 'this', $js = '')
+	protected function _error($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'error');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Focus
 	 *
 	 * Outputs a jQuery focus event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _focus($element = 'this', $js = '')
+	protected function _focus($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'focus');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Hover
 	 *
 	 * Outputs a jQuery hover event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- Javascript code for mouse over
 	 * @param	string	- Javascript code for mouse out
 	 * @return	string
 	 */
-	function _hover($element = 'this', $over, $out)
+	protected function _hover($element = 'this', $over, $out)
 	{
 		$event = "\n\t$(" . $this->_prep_element($element) . ").hover(\n\t\tfunction()\n\t\t{\n\t\t\t{$over}\n\t\t}, \n\t\tfunction()\n\t\t{\n\t\t\t{$out}\n\t\t});\n";
 
@@ -198,103 +191,97 @@ class CI_Jquery extends CI_Javascript {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Keydown
 	 *
 	 * Outputs a jQuery keydown event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _keydown($element = 'this', $js = '')
+	protected function _keydown($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'keydown');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Keyup
 	 *
 	 * Outputs a jQuery keydown event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _keyup($element = 'this', $js = '')
+	protected function _keyup($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'keyup');
-	}	
+	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Load
 	 *
 	 * Outputs a jQuery load event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _load($element = 'this', $js = '')
+	protected function _load($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'load');
-	}	
-	
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Mousedown
 	 *
 	 * Outputs a jQuery mousedown event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _mousedown($element = 'this', $js = '')
+	protected function _mousedown($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'mousedown');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Mouse Out
 	 *
 	 * Outputs a jQuery mouseout event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _mouseout($element = 'this', $js = '')
+	protected function _mouseout($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'mouseout');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Mouse Over
 	 *
 	 * Outputs a jQuery mouseover event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _mouseover($element = 'this', $js = '')
+	protected function _mouseover($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'mouseover');
 	}
@@ -306,12 +293,11 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery mouseup event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _mouseup($element = 'this', $js = '')
+	protected function _mouseup($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'mouseup');
 	}
@@ -323,18 +309,17 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs script directly
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _output($array_js = '')
+	protected function _output($array_js = '')
 	{
 		if ( ! is_array($array_js))
 		{
 			$array_js = array($array_js);
 		}
-		
+
 		foreach ($array_js as $js)
 		{
 			$this->jquery_code_for_compile[] = "\t$js\n";
@@ -348,12 +333,11 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery resize event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _resize($element = 'this', $js = '')
+	protected function _resize($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'resize');
 	}
@@ -365,16 +349,15 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery scroll event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _scroll($element = 'this', $js = '')
+	protected function _scroll($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'scroll');
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -382,34 +365,31 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery unload event
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @return	string
 	 */
-	function _unload($element = 'this', $js = '')
+	protected function _unload($element = 'this', $js = '')
 	{
 		return $this->_add_event($element, $js, 'unload');
 	}
 
-	// --------------------------------------------------------------------	 
+	// --------------------------------------------------------------------
 	// Effects
-	// --------------------------------------------------------------------	
-	
+	// --------------------------------------------------------------------
+
 	/**
 	 * Add Class
 	 *
 	 * Outputs a jQuery addClass event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @return	string
 	 */
-	function _addClass($element = 'this', $class='')
+	protected function _addClass($element = 'this', $class='')
 	{
 		$element = $this->_prep_element($element);
-		$str  = "$({$element}).addClass(\"$class\");";
-		return $str;
+		return "$({$element}).addClass(\"$class\");";
 	}
 
 	// --------------------------------------------------------------------
@@ -419,19 +399,18 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery animate event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _animate($element = 'this', $params = array(), $speed = '', $extra = '')
+	protected function _animate($element = 'this', $params = array(), $speed = '', $extra = '')
 	{
 		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		$animations = "\t\t\t";
-		
+
 		foreach ($params as $param=>$value)
 		{
 			$animations .= $param.': \''.$value.'\', ';
@@ -443,71 +422,63 @@ class CI_Jquery extends CI_Javascript {
 		{
 			$speed = ', '.$speed;
 		}
-		
+
 		if ($extra != '')
 		{
 			$extra = ', '.$extra;
 		}
-		
-		$str  = "$({$element}).animate({\n$animations\n\t\t}".$speed.$extra.");";
-		
-		return $str;
+
+		return "$({$element}).animate({\n$animations\n\t\t}".$speed.$extra.");";
 	}
 
 	// --------------------------------------------------------------------
-		
+
 	/**
 	 * Fade In
 	 *
 	 * Outputs a jQuery hide event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _fadeIn($element = 'this', $speed = '', $callback = '')
+	protected function _fadeIn($element = 'this', $speed = '', $callback = '')
 	{
-		$element = $this->_prep_element($element);	
+		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).fadeIn({$speed}{$callback});";
-		
-		return $str;
+
+		return "$({$element}).fadeIn({$speed}{$callback});";
 	}
-		
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Fade Out
 	 *
 	 * Outputs a jQuery hide event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _fadeOut($element = 'this', $speed = '', $callback = '')
+	protected function _fadeOut($element = 'this', $speed = '', $callback = '')
 	{
 		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).fadeOut({$speed}{$callback});";
-		
-		return $str;
+
+		return "$({$element}).fadeOut({$speed}{$callback});";
 	}
 
 	// --------------------------------------------------------------------
@@ -517,27 +488,24 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery hide action
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _hide($element = 'this', $speed = '', $callback = '')
+	protected function _hide($element = 'this', $speed = '', $callback = '')
 	{
-		$element = $this->_prep_element($element);	
+		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).hide({$speed}{$callback});";
 
-		return $str;
+		return "$({$element}).hide({$speed}{$callback});";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -545,163 +513,145 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs a jQuery remove class event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @return	string
 	 */
-	function _removeClass($element = 'this', $class='')
+	protected function _removeClass($element = 'this', $class='')
 	{
 		$element = $this->_prep_element($element);
-		$str  = "$({$element}).removeClass(\"$class\");";
-		return $str;
+		return "$({$element}).removeClass(\"$class\");";
 	}
 
 	// --------------------------------------------------------------------
-			
+
 	/**
 	 * Slide Up
 	 *
 	 * Outputs a jQuery slideUp event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _slideUp($element = 'this', $speed = '', $callback = '')
+	protected function _slideUp($element = 'this', $speed = '', $callback = '')
 	{
-		$element = $this->_prep_element($element);	
+		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).slideUp({$speed}{$callback});";
-		
-		return $str;
+
+		return "$({$element}).slideUp({$speed}{$callback});";
 	}
-		
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Slide Down
 	 *
 	 * Outputs a jQuery slideDown event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _slideDown($element = 'this', $speed = '', $callback = '')
+	protected function _slideDown($element = 'this', $speed = '', $callback = '')
 	{
 		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).slideDown({$speed}{$callback});";
-		
-		return $str;
+
+		return "$({$element}).slideDown({$speed}{$callback});";
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Slide Toggle
 	 *
 	 * Outputs a jQuery slideToggle event
 	 *
-	 * @access	public
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _slideToggle($element = 'this', $speed = '', $callback = '')
+	protected function _slideToggle($element = 'this', $speed = '', $callback = '')
 	{
 		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).slideToggle({$speed}{$callback});";
-		
-		return $str;
+
+		return "$({$element}).slideToggle({$speed}{$callback});";
 	}
-		
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Toggle
 	 *
 	 * Outputs a jQuery toggle event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @return	string
 	 */
-	function _toggle($element = 'this')
+	protected function _toggle($element = 'this')
 	{
 		$element = $this->_prep_element($element);
-		$str  = "$({$element}).toggle();";
-		return $str;
+		return "$({$element}).toggle();";
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Toggle Class
 	 *
 	 * Outputs a jQuery toggle class event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @return	string
 	 */
-	function _toggleClass($element = 'this', $class='')
+	protected function _toggleClass($element = 'this', $class='')
 	{
 		$element = $this->_prep_element($element);
-		$str  = "$({$element}).toggleClass(\"$class\");";
-		return $str;
+		return "$({$element}).toggleClass(\"$class\");";
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Show
 	 *
 	 * Outputs a jQuery show event
 	 *
-	 * @access	private
 	 * @param	string	- element
 	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
 	 * @param	string	- Javascript callback function
 	 * @return	string
 	 */
-	function _show($element = 'this', $speed = '', $callback = '')
+	protected function _show($element = 'this', $speed = '', $callback = '')
 	{
-		$element = $this->_prep_element($element);	
+		$element = $this->_prep_element($element);
 		$speed = $this->_validate_speed($speed);
-		
+
 		if ($callback != '')
 		{
 			$callback = ", function(){\n{$callback}\n}";
 		}
-		
-		$str  = "$({$element}).show({$speed}{$callback});";
-		
-		return $str;
+
+		return "$({$element}).show({$speed}{$callback});";
 	}
 
 	// --------------------------------------------------------------------
@@ -709,22 +659,20 @@ class CI_Jquery extends CI_Javascript {
 	/**
 	 * Updater
 	 *
-	 * An Ajax call that populates the designated DOM node with 
+	 * An Ajax call that populates the designated DOM node with
 	 * returned content
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	the controller to run the call against
 	 * @param	string	optional parameters
 	 * @return	string
 	 */
-	
-	function _updater($container = 'this', $controller, $options = '')
-	{	
+
+	protected function _updater($container = 'this', $controller, $options = '')
+	{
 		$container = $this->_prep_element($container);
-		
 		$controller = (strpos('://', $controller) === FALSE) ? $controller : $this->CI->config->site_url($controller);
-		
+
 		// ajaxStart and ajaxStop are better choices here... but this is a stop gap
 		if ($this->CI->config->item('javascript_ajax_img') == '')
 		{
@@ -732,41 +680,38 @@ class CI_Jquery extends CI_Javascript {
 		}
 		else
 		{
-			$loading_notifier = '<img src=\'' . $this->CI->config->slash_item('base_url') . $this->CI->config->item('javascript_ajax_img') . '\' alt=\'Loading\' />';
+			$loading_notifier = '<img src=\''.$this->CI->config->slash_item('base_url').$this->CI->config->item('javascript_ajax_img').'\' alt=\'Loading\' />';
 		}
-		
-		$updater = "$($container).empty();\n"; // anything that was in... get it out
-		$updater .= "\t\t$($container).prepend(\"$loading_notifier\");\n"; // to replace with an image
+
+		$updater = "$($container).empty();\n" // anything that was in... get it out
+			. "\t\t$($container).prepend(\"$loading_notifier\");\n"; // to replace with an image
 
 		$request_options = '';
 		if ($options != '')
 		{
-			$request_options .= ", {";
-			$request_options .= (is_array($options)) ? "'".implode("', '", $options)."'" : "'".str_replace(":", "':'", $options)."'";
-			$request_options .= "}";
+			$request_options .= ', {'
+					. (is_array($options) ? "'".implode("', '", $options)."'" : "'".str_replace(":", "':'", $options)."'")
+					. '}';
 		}
 
-		$updater .= "\t\t$($container).load('$controller'$request_options);";
-		return $updater;
+		return $updater."\t\t$($container).load('$controller'$request_options);";
 	}
 
 
 	// --------------------------------------------------------------------
 	// Pre-written handy stuff
 	// --------------------------------------------------------------------
-	 
+
 	/**
 	 * Zebra tables
 	 *
-	 * @access	private
 	 * @param	string	table name
 	 * @param	string	plugin location
 	 * @return	string
 	 */
-	function _zebraTables($class = '', $odd = 'odd', $hover = '')
+	protected function _zebraTables($class = '', $odd = 'odd', $hover = '')
 	{
 		$class = ($class != '') ? '.'.$class : '';
-		
 		$zebra  = "\t\$(\"table{$class} tbody tr:nth-child(even)\").addClass(\"{$odd}\");";
 
 		$this->jquery_code_for_compile[] = $zebra;
@@ -779,22 +724,19 @@ class CI_Jquery extends CI_Javascript {
 		return $zebra;
 	}
 
-
-
 	// --------------------------------------------------------------------
 	// Plugins
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Corner Plugin
 	 *
 	 * http://www.malsup.com/jquery/corner/
 	 *
-	 * @access	public
 	 * @param	string	target
 	 * @return	string
 	 */
-	function corner($element = '', $corner_style = '')
+	public function corner($element = '', $corner_style = '')
 	{
 		// may want to make this configurable down the road
 		$corner_location = '/plugins/jquery.corner.js';
@@ -806,7 +748,7 @@ class CI_Jquery extends CI_Javascript {
 
 		return "$(" . $this->_prep_element($element) . ").corner(".$corner_style.");";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -814,11 +756,10 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Load a thickbox modal window
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function modal($src, $relative = FALSE)
-	{	
+	public function modal($src, $relative = FALSE)
+	{
 		$this->jquery_code_for_load[] = $this->external($src, $relative);
 	}
 
@@ -829,10 +770,9 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Load an Effect library
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function effect($src, $relative = FALSE)
+	public function effect($src, $relative = FALSE)
 	{
 		$this->jquery_code_for_load[] = $this->external($src, $relative);
 	}
@@ -844,10 +784,9 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Load a plugin library
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function plugin($src, $relative = FALSE)
+	public function plugin($src, $relative = FALSE)
 	{
 		$this->jquery_code_for_load[] = $this->external($src, $relative);
 	}
@@ -859,10 +798,9 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Load a user interface library
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function ui($src, $relative = FALSE)
+	public function ui($src, $relative = FALSE)
 	{
 		$this->jquery_code_for_load[] = $this->external($src, $relative);
 	}
@@ -873,10 +811,9 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Creates a jQuery sortable
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function sortable($element, $options = array())
+	public function sortable($element, $options = array())
 	{
 
 		if (count($options) > 0)
@@ -901,16 +838,15 @@ class CI_Jquery extends CI_Javascript {
 	/**
 	 * Table Sorter Plugin
 	 *
-	 * @access	public
 	 * @param	string	table name
 	 * @param	string	plugin location
 	 * @return	string
 	 */
-	function tablesorter($table = '', $options = '')
+	public function tablesorter($table = '', $options = '')
 	{
 		$this->jquery_code_for_compile[] = "\t$(" . $this->_prep_element($table) . ").tablesorter($options);\n";
 	}
-	
+
 	// --------------------------------------------------------------------
 	// Class functions
 	// --------------------------------------------------------------------
@@ -920,13 +856,12 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Constructs the syntax for an event, and adds to into the array for compilation
 	 *
-	 * @access	private
 	 * @param	string	The element to attach the event to
 	 * @param	string	The code to execute
 	 * @param	string	The event to pass
 	 * @return	string
-	 */	
-	function _add_event($element, $js, $event)
+	 */
+	protected function _add_event($element, $js, $event)
 	{
 		if (is_array($js))
 		{
@@ -947,65 +882,61 @@ class CI_Jquery extends CI_Javascript {
 	 * As events are specified, they are stored in an array
 	 * This funciton compiles them all for output on a page
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _compile($view_var = 'script_foot', $script_tags = TRUE)
+	protected function _compile($view_var = 'script_foot', $script_tags = TRUE)
 	{
 		// External references
 		$external_scripts = implode('', $this->jquery_code_for_load);
 		$this->CI->load->vars(array('library_src' => $external_scripts));
 
-		if (count($this->jquery_code_for_compile) == 0 )
+		if (count($this->jquery_code_for_compile) === 0)
 		{
 			// no inline references, let's just return
 			return;
 		}
 
 		// Inline references
-		$script = '$(document).ready(function() {' . "\n";
-		$script .= implode('', $this->jquery_code_for_compile);
-		$script .= '});';
-		
+		$script = '$(document).ready(function() {'."\n"
+			. implode('', $this->jquery_code_for_compile)
+			. '});';
+
 		$output = ($script_tags === FALSE) ? $script : $this->inline($script);
 
 		$this->CI->load->vars(array($view_var => $output));
 
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Clear Compile
 	 *
 	 * Clears the array of script events collected for output
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function _clear_compile()
+	protected function _clear_compile()
 	{
 		$this->jquery_code_for_compile = array();
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Document Ready
 	 *
 	 * A wrapper for writing document.ready()
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _document_ready($js)
+	protected function _document_ready($js)
 	{
 		if ( ! is_array($js))
 		{
-			$js = array ($js);
-
+			$js = array($js);
 		}
-		
+
 		foreach ($js as $script)
 		{
 			$this->jquery_code_for_compile[] = $script;
@@ -1019,17 +950,16 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Outputs the script tag that loads the jquery.js file into an HTML document
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
-	function script($library_src = '', $relative = FALSE)
+	public function script($library_src = '', $relative = FALSE)
 	{
 		$library_src = $this->external($library_src, $relative);
 		$this->jquery_code_for_load[] = $library_src;
 		return $library_src;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1039,20 +969,19 @@ class CI_Jquery extends CI_Javascript {
 	 * unless the supplied element is the Javascript 'this'
 	 * object, in which case no quotes are added
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
 	 */
-	function _prep_element($element)
+	protected function _prep_element($element)
 	{
 		if ($element != 'this')
 		{
 			$element = '"'.$element.'"';
 		}
-		
+
 		return $element;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1060,25 +989,24 @@ class CI_Jquery extends CI_Javascript {
 	 *
 	 * Ensures the speed parameter is valid for jQuery
 	 *
-	 * @access	private
 	 * @param	string
 	 * @return	string
-	 */	
-	function _validate_speed($speed)
+	 */
+	protected function _validate_speed($speed)
 	{
 		if (in_array($speed, array('slow', 'normal', 'fast')))
 		{
-			$speed = '"'.$speed.'"';
+			return '"'.$speed.'"';
 		}
 		elseif (preg_match("/[^0-9]/", $speed))
 		{
-			$speed = '';
+			return '';
 		}
-	
+
 		return $speed;
 	}
 
 }
 
 /* End of file Jquery.php */
-/* Location: ./system/libraries/Jquery.php */
-\ No newline at end of file
+/* Location: ./system/libraries/Jquery.php */
author	Taufan Aditya <toopay@taufanaditya.com>	2012-03-09 10:56:21 +0100
committer	Taufan Aditya <toopay@taufanaditya.com>	2012-03-09 10:56:21 +0100
commit	b3723ff33ebfd4f4e7822516ecb061613f1bc3d5 (patch)
tree	e55d564db25daa3216c3f3e7ae95e315387d6038 /system/libraries
parent	4054c56b882ad40495f2d227990d73437af51038 (diff)
parent	0f2cb79b976086cb73140c25f4c568e865177426 (diff)