added a Number helper
diff --git a/system/helpers/number_helper.php b/system/helpers/number_helper.php
new file mode 100644
index 0000000..f158b1c
--- /dev/null
+++ b/system/helpers/number_helper.php
@@ -0,0 +1,68 @@
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2006, EllisLab, Inc.
+ * @license http://codeigniter.com/user_guide/license.html
+ * @link http://codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Number Helpers
+ *
+ * @package CodeIgniter
+ * @subpackage Helpers
+ * @category Helpers
+ * @author ExpressionEngine Dev Team
+ * @link http://codeigniter.com/user_guide/helpers/number_helper.html
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Formats a numbers as bytes, based on size, and adds the appropriate suffix
+ *
+ * @access public
+ * @param mixed // will be cast as int
+ * @return string
+ */
+if ( ! function_exists('byte_format'))
+{
+ function byte_format($num)
+ {
+ $num = (int) $num;
+
+ if ($num >= 1000000000)
+ {
+ $num = round($num/107374182)/10;
+ $unit = 'GB';
+ }
+ elseif ($num >= 1000000)
+ {
+ $num = round($num/104857)/10;
+ $unit = 'MB';
+ }
+ elseif ($num >= 1000)
+ {
+ $num = round($num/102)/10;
+ $unit = 'KB';
+ }
+ else
+ {
+ $unit = 'Bytes';
+ }
+
+ return number_format($num, 1).' '.$unit;
+ }
+}
+
+/* End of file number_helper.php */
+/* Location: ./system/helpers/number_helper.php */
\ No newline at end of file