diff --git a/Ciqrcode.php b/Ciqrcode.php
index bc3f15e..44b3a17 100644
--- a/Ciqrcode.php
+++ b/Ciqrcode.php
@@ -1,106 +1,99 @@
 <?php
+
 /**
  * PHP QR Code porting for Codeigniter
  *
- * @package        	CodeIgniter
- * @subpackage    	Libraries
- * @category    	Libraries
- * @porting author	dwi.setiyadi@gmail.com
- * @original author	http://phpqrcode.sourceforge.net/
- * 
- * @version		1.0
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @category Libraries
+ * @porting author dwi.setiyadi@gmail.com
+ * @original author http://phpqrcode.sourceforge.net/
+ *
+ * @version 1.0
  */
- 
-class Ciqrcode
-{
-	var $cacheable = true;
-	var $cachedir = 'application/cache/';
-	var $errorlog = 'application/logs/';
-	var $quality = true;
-	var $size = 1024;
-	
-	function __construct($config = array()) {
-		$this->initialize($config);
-	}
-	
-	public function initialize($config = array()) {
-		$this->cacheable = (isset($config['cacheable'])) ? $config['cacheable'] : $this->cacheable;
-		$this->cachedir = (isset($config['cachedir'])) ? $config['cachedir'] : FCPATH.$this->cachedir;
-		$this->errorlog = (isset($config['errorlog'])) ? $config['errorlog'] : FCPATH.$this->errorlog;
-		$this->quality = (isset($config['quality'])) ? $config['quality'] : $this->quality;
-		$this->size = (isset($config['size'])) ? $config['size'] : $this->size;
-		
-		// use cache - more disk reads but less CPU power, masks and format templates are stored there
-		if (!defined('QR_CACHEABLE')) define('QR_CACHEABLE', $this->cacheable);
-		
-		// used when QR_CACHEABLE === true
-		if (!defined('QR_CACHE_DIR')) define('QR_CACHE_DIR', $this->cachedir);
-		
-		// default error logs dir
-		if (!defined('QR_LOG_DIR')) define('QR_LOG_DIR', $this->errorlog);
-		
-		// if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
-		if ($this->quality) {
-			if (!defined('QR_FIND_BEST_MASK')) define('QR_FIND_BEST_MASK', true);
-		} else {
-			if (!defined('QR_FIND_BEST_MASK')) define('QR_FIND_BEST_MASK', false);
-			if (!defined('QR_DEFAULT_MASK')) define('QR_DEFAULT_MASK', $this->quality);
-		}
-		
-		// if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
-		if (!defined('QR_FIND_FROM_RANDOM')) define('QR_FIND_FROM_RANDOM', false);
-		
-		// maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
-		if (!defined('QR_PNG_MAXIMUM_SIZE')) define('QR_PNG_MAXIMUM_SIZE',  $this->size);
-	
-		// call original library
-		include "qrcode/qrconst.php";
-		include "qrcode/qrtools.php";
-		include "qrcode/qrspec.php";
-		include "qrcode/qrimage.php";
-		include "qrcode/qrinput.php";
-		include "qrcode/qrbitstream.php";
-		include "qrcode/qrsplit.php";
-		include "qrcode/qrrscode.php";
-		include "qrcode/qrmask.php";
-		include "qrcode/qrencode.php";
-	}
-	
-	public function generate($params = array()) {
-		if (isset($params['black']) 
-			&& is_array($params['black']) 
-			&& count($params['black']) == 3 
-			&& array_filter($params['black'], 'is_int') === $params['black']) {
-			QRimage::$black = $params['black']; 
-		}
-		
-		if (isset($params['white']) 
-			&& is_array($params['white']) 
-			&& count($params['white']) == 3 
-			&& array_filter($params['white'], 'is_int') === $params['white']) {
-			QRimage::$white = $params['white']; 
-		}
-		
-		$params['data'] = (isset($params['data'])) ? $params['data'] : 'QR Code Library';
-		if (isset($params['savename'])) {
-			$level = 'L';
-			if (isset($params['level']) && in_array($params['level'], array('L','M','Q','H'))) $level = $params['level'];
-			
-			$size = 4;
-			if (isset($params['size'])) $size = min(max((int)$params['size'], 1), 10);
-			
-			QRcode::png($params['data'], $params['savename'], $level, $size, 2);
-			return $params['savename'];
-		} else {
-			$level = 'L';
-			if (isset($params['level']) && in_array($params['level'], array('L','M','Q','H'))) $level = $params['level'];
-			
-			$size = 4;
-			if (isset($params['size'])) $size = min(max((int)$params['size'], 1), 10);
-			
-			QRcode::png($params['data'], NULL, $level, $size, 2);
-		}
-	}
-}
+class Ciqrcode {
+
+    var $cacheable = true;
+    var $cachedir = 'application/cache/';
+    var $errorlog = 'application/logs/';
+    var $quality = true;
+    var $size = 1024;
 
-/* end of file */
\ No newline at end of file
+    function __construct($config = array()) {
+        include "qrcode/qrconst.php";
+        include "qrcode/qrtools.php";
+        include "qrcode/qrspec.php";
+        include "qrcode/qrimage.php";
+        include "qrcode/qrinput.php";
+        include "qrcode/qrbitstream.php";
+        include "qrcode/qrsplit.php";
+        include "qrcode/qrrscode.php";
+        include "qrcode/qrmask.php";
+        include "qrcode/qrencode.php";
+        
+        $this->initialize($config);
+    }
+
+    public function initialize($config = array()) {
+        $this->cacheable = (isset($config['cacheable'])) ? $config['cacheable'] : $this->cacheable;
+        $this->cachedir = (isset($config['cachedir'])) ? $config['cachedir'] : FCPATH . $this->cachedir;
+        $this->errorlog = (isset($config['errorlog'])) ? $config['errorlog'] : FCPATH . $this->errorlog;
+        $this->quality = (isset($config['quality'])) ? $config['quality'] : $this->quality;
+        $this->size = (isset($config['size'])) ? $config['size'] : $this->size;
+// use cache - more disk reads but less CPU power, masks and format templates are stored there
+        if (!defined('QR_CACHEABLE'))
+            define('QR_CACHEABLE', $this->cacheable);
+// used when QR_CACHEABLE === true
+        if (!defined('QR_CACHE_DIR'))
+            define('QR_CACHE_DIR', $this->cachedir);
+// default error logs dir
+        if (!defined('QR_LOG_DIR'))
+            define('QR_LOG_DIR', $this->errorlog);
+// if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+        if ($this->quality) {
+            if (!defined('QR_FIND_BEST_MASK'))
+                define('QR_FIND_BEST_MASK', true);
+        } else {
+            if (!defined('QR_FIND_BEST_MASK'))
+                define('QR_FIND_BEST_MASK', false);
+            if (!defined('QR_DEFAULT_MASK'))
+                define('QR_DEFAULT_MASK', $this->quality);
+        }
+// if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+        if (!defined('QR_FIND_FROM_RANDOM'))
+            define('QR_FIND_FROM_RANDOM', false);
+// maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+        if (!defined('QR_PNG_MAXIMUM_SIZE'))
+            define('QR_PNG_MAXIMUM_SIZE', $this->size);
+        
+    }
+
+    public function generate($params = array()) {
+        if (isset($params['black']) && is_array($params['black']) && count($params['black']) == 3 && array_filter($params['black'], 'is_int') === $params['black']) {
+            QRimage::$black = $params['black'];
+        }
+        if (isset($params['white']) && is_array($params['white']) && count($params['white']) == 3 && array_filter($params['white'], 'is_int') === $params['white']) {
+            QRimage::$white = $params['white'];
+        }
+        $params['data'] = (isset($params['data'])) ? $params['data'] : 'QR Code Library';
+        if (isset($params['savename'])) {
+            $level = 'L';
+            if (isset($params['level']) && in_array($params['level'], array('L', 'M', 'Q', 'H')))
+                $level = $params['level'];
+            $size = 4;
+            if (isset($params['size']))
+                $size = min(max((int) $params['size'], 1), 10);
+            QRcode::png($params['data'], $params['savename'], $level, $size, 2);
+            return $params['savename'];
+        } else {
+            $level = 'L';
+            if (isset($params['level']) && in_array($params['level'], array('L', 'M', 'Q', 'H')))
+                $level = $params['level'];
+            $size = 4;
+            if (isset($params['size']))
+                $size = min(max((int) $params['size'], 1), 10);
+            QRcode::png($params['data'], NULL, $level, $size, 2);
+        }
+    }
+
+}