diff --git a/system/core/Exceptions.php b/system/core/Exceptions.php
old mode 100644
new mode 100755
index bff86a9..6a63ca7
--- a/system/core/Exceptions.php
+++ b/system/core/Exceptions.php
@@ -30,8 +30,22 @@
 	var $message;
 	var $filename;
 	var $line;
+
+	/**
+	 * Nesting level of the output buffering mechanism
+	 * Used to
+	 *
+	 * @var int
+	 * @access public
+	 */
 	var $ob_level;
 
+	/**
+	 * List if available error levels
+	 *
+	 * @var array
+	 * @access public
+	 */
 	var $levels = array(
 						E_ERROR				=>	'Error',
 						E_WARNING			=>	'Warning',