Index: branches/5.0.x/core/install/install_toolkit.php
===================================================================
diff -u -r12117 -r12199
--- branches/5.0.x/core/install/install_toolkit.php	(.../install_toolkit.php)	(revision 12117)
+++ branches/5.0.x/core/install/install_toolkit.php	(.../install_toolkit.php)	(revision 12199)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: install_toolkit.php 11948 2009-07-21 07:44:59Z alex $
+* @version	$Id: install_toolkit.php 12199 2009-08-05 15:59:15Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -732,4 +732,21 @@
 		{
 			$this->Application->HandleEvent($themes_event, 'adm:OnRebuildThemes');
 		}
+
+		/**
+		 * Checks that file is writable by group or others
+		 *
+		 * @param string $file
+		 * @return boolean
+		 */
+		function checkWritePermissions($file)
+		{
+			if (DIRECTORY_SEPARATOR == '\\') {
+				// windows doen't allow to check permissions (always returns true)
+				return true;
+			}
+
+			$permissions = fileperms($file);
+			return $permissions & 0x0010 || $permissions & 0x0002;
+		}
 	}
\ No newline at end of file