diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index c18c178..c83d0ae 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -25,7 +25,7 @@
  * @link		http://codeigniter.com/user_guide/libraries/file_uploading.html
  */
 class CI_Upload {
-	
+
 	var $max_size				= 0;
 	var $max_width				= 0;
 	var $max_height				= 0;
@@ -51,9 +51,9 @@
 	var $xss_clean				= FALSE;
 	var $temp_prefix			= "temp_file_";
 	var $client_name			= '';
-	
+
 	var $_file_name_override	= ''; //@PHP4 (should be private)
-	
+
 	/**
 	 * Constructor
 	 *
@@ -65,19 +65,19 @@
 		{
 			$this->initialize($props);
 		}
-		
+
 		log_message('debug', "Upload Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Initialize preferences
 	 *
 	 * @access	public
 	 * @param	array
 	 * @return	void
-	 */	
+	 */
 
 	function initialize($config = array())
 	{
@@ -107,9 +107,9 @@
 							'xss_clean'			=> FALSE,
 							'temp_prefix'		=> "temp_file_",
 							'client_name'		=> ''
-						);	
-	
-	
+						);
+
+
 		foreach ($defaults as $key => $val)
 		{
 			if (isset($config[$key]))
@@ -122,27 +122,27 @@
 				else
 				{
 					$this->$key = $config[$key];
-				}			
+				}
 			}
 			else
 			{
 				$this->$key = $val;
 			}
 		}
-		
+
 		// if a file_name was provided in the config, use it instead of the user input
 		// supplied file name for all uploads until initialized again
 		$this->_file_name_override = $this->file_name;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Perform the file upload
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function do_upload($field = 'userfile')
 	{
 		// Is $_FILES[$field] set? If not, no reason to continue.
@@ -151,7 +151,7 @@
 			$this->set_error('upload_no_file_selected');
 			return FALSE;
 		}
-		
+
 		// Is the upload path valid?
 		if ( ! $this->validate_upload_path())
 		{
@@ -173,10 +173,10 @@
 					$this->set_error('upload_file_exceeds_form_limit');
 					break;
 				case 3: // UPLOAD_ERR_PARTIAL
-				   $this->set_error('upload_file_partial');
+					$this->set_error('upload_file_partial');
 					break;
 				case 4: // UPLOAD_ERR_NO_FILE
-				   $this->set_error('upload_no_file_selected');
+					$this->set_error('upload_no_file_selected');
 					break;
 				case 6: // UPLOAD_ERR_NO_TMP_DIR
 					$this->set_error('upload_no_temp_directory');
@@ -196,14 +196,14 @@
 
 
 		// Set the uploaded data as class variables
-		$this->file_temp = $_FILES[$field]['tmp_name'];		
-		$this->file_size = $_FILES[$field]['size'];	
+		$this->file_temp = $_FILES[$field]['tmp_name'];
+		$this->file_size = $_FILES[$field]['size'];
 		$this->file_type = preg_replace("/^(.+?);.*$/", "\\1", $_FILES[$field]['type']);
 		$this->file_type = strtolower(trim(stripslashes($this->file_type), '"'));
 		$this->file_name = $this->_prep_filename($_FILES[$field]['name']);
 		$this->file_ext	 = $this->get_extension($this->file_name);
 		$this->client_name = $this->file_name;
-		
+
 		// Is the file type allowed to be uploaded?
 		if ( ! $this->is_allowed_filetype())
 		{
@@ -220,10 +220,10 @@
 			if ( ! $this->is_allowed_filetype(TRUE))
 			{
 				$this->set_error('upload_invalid_filetype');
-				return FALSE;				
+				return FALSE;
 			}
 		}
-		
+
 		// Convert the file size to kilobytes
 		if ($this->file_size > 0)
 		{
@@ -247,7 +247,7 @@
 
 		// Sanitize the file name for security
 		$this->file_name = $this->clean_file_name($this->file_name);
-		
+
 		// Truncate the file name if it's too long
 		if ($this->max_filename > 0)
 		{
@@ -271,7 +271,7 @@
 		if ($this->overwrite == FALSE)
 		{
 			$this->file_name = $this->set_filename($this->upload_path, $this->file_name);
-			
+
 			if ($this->file_name === FALSE)
 			{
 				return FALSE;
@@ -304,8 +304,8 @@
 		{
 			if ( ! @move_uploaded_file($this->file_temp, $this->upload_path.$this->file_name))
 			{
-				 $this->set_error('upload_destination_error');
-				 return FALSE;
+				$this->set_error('upload_destination_error');
+				return FALSE;
 			}
 		}
 
@@ -319,18 +319,18 @@
 
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Finalized Data Array
-	 *	
+	 *
 	 * Returns an associative array containing all of the information
 	 * related to the upload, allowing the developer easy access in one array.
 	 *
 	 * @access	public
 	 * @return	array
-	 */	
+	 */
 	function data()
 	{
 		return array (
@@ -350,24 +350,24 @@
 						'image_size_str'	=> $this->image_size_str,
 					);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Upload Path
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_upload_path($path)
 	{
 		// Make sure it has a trailing slash
 		$this->upload_path = rtrim($path, '/').'/';
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the file name
 	 *
@@ -379,25 +379,25 @@
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function set_filename($path, $filename)
 	{
 		if ($this->encrypt_name == TRUE)
-		{		
+		{
 			mt_srand();
-			$filename = md5(uniqid(mt_rand())).$this->file_ext;	
+			$filename = md5(uniqid(mt_rand())).$this->file_ext;
 		}
-	
+
 		if ( ! file_exists($path.$filename))
 		{
 			return $filename;
 		}
-	
+
 		$filename = str_replace($this->file_ext, '', $filename);
-		
+
 		$new_filename = '';
 		for ($i = 1; $i < 100; $i++)
-		{			
+		{
 			if ( ! file_exists($path.$filename.$i.$this->file_ext))
 			{
 				$new_filename = $filename.$i.$this->file_ext;
@@ -415,72 +415,72 @@
 			return $new_filename;
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum File Size
 	 *
 	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
+	 */
 	function set_max_filesize($n)
 	{
 		$this->max_size = ((int) $n < 0) ? 0: (int) $n;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum File Name Length
 	 *
 	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
+	 */
 	function set_max_filename($n)
 	{
 		$this->max_filename = ((int) $n < 0) ? 0: (int) $n;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum Image Width
 	 *
 	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
+	 */
 	function set_max_width($n)
 	{
 		$this->max_width = ((int) $n < 0) ? 0: (int) $n;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum Image Height
 	 *
 	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
+	 */
 	function set_max_height($n)
 	{
 		$this->max_height = ((int) $n < 0) ? 0: (int) $n;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Allowed File Types
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_allowed_types($types)
 	{
 		if ( ! is_array($types) && $types == '*')
@@ -490,9 +490,9 @@
 		}
 		$this->allowed_types = explode('|', $types);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Image Properties
 	 *
@@ -501,7 +501,7 @@
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_image_properties($path = '')
 	{
 		if ( ! $this->is_image())
@@ -512,7 +512,7 @@
 		if (function_exists('getimagesize'))
 		{
 			if (FALSE !== ($D = @getimagesize($path)))
-			{	
+			{
 				$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
 
 				$this->image_width		= $D['0'];
@@ -522,9 +522,9 @@
 			}
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set XSS Clean
 	 *
@@ -539,15 +539,15 @@
 	{
 		$this->xss_clean = ($flag == TRUE) ? TRUE : FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validate the image
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function is_image()
 	{
 		// IE will sometimes return odd mime-types during upload, so here we just standardize all
@@ -555,12 +555,12 @@
 
 		$png_mimes  = array('image/x-png');
 		$jpeg_mimes = array('image/jpg', 'image/jpe', 'image/jpeg', 'image/pjpeg');
-		
+
 		if (in_array($this->file_type, $png_mimes))
 		{
 			$this->file_type = 'image/png';
 		}
-		
+
 		if (in_array($this->file_type, $jpeg_mimes))
 		{
 			$this->file_type = 'image/jpeg';
@@ -570,80 +570,80 @@
 							'image/gif',
 							'image/jpeg',
 							'image/png',
-						   );
+						);
 
 		return (in_array($this->file_type, $img_mimes, TRUE)) ? TRUE : FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Verify that the filetype is allowed
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function is_allowed_filetype($ignore_mime = FALSE)
 	{
 		if ($this->allowed_types == '*')
 		{
 			return TRUE;
 		}
-		
+
 		if (count($this->allowed_types) == 0 OR ! is_array($this->allowed_types))
 		{
 			$this->set_error('upload_no_file_types');
 			return FALSE;
 		}
-		
+
 		$ext = strtolower(ltrim($this->file_ext, '.'));
-		
+
 		if ( ! in_array($ext, $this->allowed_types))
 		{
 			return FALSE;
 		}
 
-		// Images get some additional checks		
+		// Images get some additional checks
 		$image_types = array('gif', 'jpg', 'jpeg', 'png', 'jpe');
-		
+
 		if (in_array($ext, $image_types))
 		{
 			if (getimagesize($this->file_temp) === FALSE)
 			{
 				return FALSE;
-			}			
+			}
 		}
-		
+
 		if ($ignore_mime === TRUE)
 		{
 			return TRUE;
 		}
-		
+
 		$mime = $this->mimes_types($ext);
-				
+
 		if (is_array($mime))
 		{
 			if (in_array($this->file_type, $mime, TRUE))
 			{
 				return TRUE;
-			}			
+			}
 		}
 		elseif ($mime == $this->file_type)
 		{
 				return TRUE;
 		}
-		
+
 		return FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Verify that the file is within the allowed size
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function is_allowed_filesize()
 	{
 		if ($this->max_size != 0  AND  $this->file_size > $this->max_size)
@@ -655,15 +655,15 @@
 			return TRUE;
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Verify that the image is within the allowed width/height
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function is_allowed_dimensions()
 	{
 		if ( ! $this->is_image())
@@ -690,9 +690,9 @@
 
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validate Upload Path
 	 *
@@ -701,7 +701,7 @@
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function validate_upload_path()
 	{
 		if ($this->upload_path == '')
@@ -709,7 +709,7 @@
 			$this->set_error('upload_no_filepath');
 			return FALSE;
 		}
-		
+
 		if (function_exists('realpath') AND @realpath($this->upload_path) !== FALSE)
 		{
 			$this->upload_path = str_replace("\\", "/", realpath($this->upload_path));
@@ -730,31 +730,31 @@
 		$this->upload_path = preg_replace("/(.+?)\/*$/", "\\1/",  $this->upload_path);
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Extract the file extension
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function get_extension($filename)
 	{
 		$x = explode('.', $filename);
 		return '.'.end($x);
-	}	
-	
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Clean the file name for security
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */		
+	 */
 	function clean_file_name($filename)
 	{
 		$bad = array(
@@ -773,40 +773,40 @@
 						"%20",
 						"%22",
 						"%3c",		// <
-						"%253c", 	// <
-						"%3e", 		// >
-						"%0e", 		// >
-						"%28", 		// (
-						"%29", 		// )
-						"%2528", 	// (
-						"%26", 		// &
-						"%24", 		// $
-						"%3f", 		// ?
-						"%3b", 		// ;
+						"%253c",	// <
+						"%3e",		// >
+						"%0e",		// >
+						"%28",		// (
+						"%29",		// )
+						"%2528",	// (
+						"%26",		// &
+						"%24",		// $
+						"%3f",		// ?
+						"%3b",		// ;
 						"%3d"		// =
 					);
-					
+
 		$filename = str_replace($bad, '', $filename);
 
 		return stripslashes($filename);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Limit the File Name Length
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */		
+	 */
 	function limit_filename_length($filename, $length)
 	{
 		if (strlen($filename) < $length)
 		{
 			return $filename;
 		}
-	
+
 		$ext = '';
 		if (strpos($filename, '.') !== FALSE)
 		{
@@ -814,12 +814,12 @@
 			$ext		= '.'.array_pop($parts);
 			$filename	= implode('.', $parts);
 		}
-	
+
 		return substr($filename, 0, ($length - strlen($ext))).$ext;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Runs the file through the XSS clean function
 	 *
@@ -829,26 +829,26 @@
 	 *
 	 * @access	public
 	 * @return	void
-	 */	
+	 */
 	function do_xss_clean()
-	{		
+	{
 		$file = $this->file_temp;
-		
+
 		if (filesize($file) == 0)
 		{
 			return FALSE;
 		}
-		
+
 		if (function_exists('memory_get_usage') && memory_get_usage() && ini_get('memory_limit') != '')
 		{
 			$current = ini_get('memory_limit') * 1024 * 1024;
-			
+
 			// There was a bug/behavioural change in PHP 5.2, where numbers over one million get output
 			// into scientific notation.  number_format() ensures this number is an integer
 			// http://bugs.php.net/bug.php?id=43053
-			
+
 			$new_memory = number_format(ceil(filesize($file) + $current), 0, '.', '');
-			
+
 			ini_set('memory_limit', $new_memory); // When an integer is used, the value is measured in bytes. - PHP.net
 		}
 
@@ -856,18 +856,18 @@
 		// IE can be fooled into mime-type detecting a malformed image as an html file, thus executing an XSS attack on anyone
 		// using IE who looks at the image.  It does this by inspecting the first 255 bytes of an image.  To get around this
 		// CI will itself look at the first 255 bytes of an image to determine its relative safety.  This can save a lot of
-		// processor power and time if it is actually a clean image, as it will be in nearly all instances _except_ an 
+		// processor power and time if it is actually a clean image, as it will be in nearly all instances _except_ an
 		// attempted XSS attack.
 
 		if (function_exists('getimagesize') && @getimagesize($file) !== FALSE)
 		{
-	        if (($file = @fopen($file, 'rb')) === FALSE) // "b" to force binary
-	        {
+			if (($file = @fopen($file, 'rb')) === FALSE) // "b" to force binary
+			{
 				return FALSE; // Couldn't open the file, return FALSE
-	        }
+			}
 
-	        $opening_bytes = fread($file, 256);
-	        fclose($file);
+			$opening_bytes = fread($file, 256);
+			fclose($file);
 
 			// These are known to throw IE into mime-type detection chaos
 			// <a, <body, <head, <html, <img, <plaintext, <pre, <script, <table, <title
@@ -885,37 +885,37 @@
 		}
 
 		$CI =& get_instance();
-		
+
 		if ( ! isset($CI->security))
 		{
 			$CI->load->library('security');
 		}
-		
+
 		return $CI->security->xss_clean($data, TRUE);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set an error message
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_error($msg)
 	{
-		$CI =& get_instance();	
+		$CI =& get_instance();
 		$CI->lang->load('upload');
-		
+
 		if (is_array($msg))
 		{
 			foreach ($msg as $val)
 			{
-				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);				
+				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);
 				$this->error_msg[] = $msg;
 				log_message('error', $msg);
-			}		
+			}
 		}
 		else
 		{
@@ -924,9 +924,9 @@
 			log_message('error', $msg);
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Display the error message
 	 *
@@ -934,7 +934,7 @@
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function display_errors($open = '<p>', $close = '</p>')
 	{
 		$str = '';
@@ -942,12 +942,12 @@
 		{
 			$str .= $open.$val.$close;
 		}
-	
+
 		return $str;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * List of Mime Types
 	 *
@@ -957,11 +957,11 @@
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function mimes_types($mime)
 	{
 		global $mimes;
-	
+
 		if (count($this->mimes) == 0)
 		{
 			if (@require_once(APPPATH.'config/mimes'.EXT))
@@ -970,12 +970,12 @@
 				unset($mimes);
 			}
 		}
-	
+
 		return ( ! isset($this->mimes[$mime])) ? FALSE : $this->mimes[$mime];
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Prep Filename
 	 *
@@ -1010,7 +1010,7 @@
 		}
 
 		$filename .= '.'.$ext;
-		
+
 		return $filename;
 	}