fixed bug #3314 where the top level path would be deleted along with files in delete_files()
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index bbf3409..ef07de7 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -122,7 +122,7 @@
 	{	

 		// Trim the trailing slash

 		$path = preg_replace("|^(.+?)/*$|", "\\1", $path);

-			

+		

 		if ( ! $current_dir = @opendir($path))

 			return;

 	

@@ -132,8 +132,7 @@
 			{

 				if (is_dir($path.'/'.$filename))

 				{

-					$level++;

-					delete_files($path.'/'.$filename, $del_dir, $level);

+					delete_files($path.'/'.$filename, $del_dir, $level + 1);

 				}

 				else

 				{