Index: branches/5.2.x/core/install/install_toolkit.php
===================================================================
diff -u -N -r14842 -r14860
--- branches/5.2.x/core/install/install_toolkit.php	(.../install_toolkit.php)	(revision 14842)
+++ branches/5.2.x/core/install/install_toolkit.php	(.../install_toolkit.php)	(revision 14860)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: install_toolkit.php 14842 2011-12-08 09:00:44Z alex $
+* @version	$Id: install_toolkit.php 14860 2011-12-12 11:36:50Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -159,6 +159,40 @@
 		}
 
 		/**
+		 * Call prerequisites method
+		 *
+		 * @param string $module_path
+		 * @param string $method
+		 * @return array
+		 */
+		function CallPrerequisitesMethod($module_path, $method)
+		{
+			static $prerequisit_classes = Array ();
+
+			$prerequisites_file = sprintf(PREREQUISITE_FILE, $module_path);
+			if ( !file_exists($prerequisites_file)) {
+				return Array ();
+			}
+
+			if ( !isset($prerequisit_classes[$module_path]) ) {
+				// save class name, because 2nd time
+				// (in after call $prerequisite_class variable will not be present)
+				include_once $prerequisites_file;
+				$prerequisit_classes[$module_path] = $prerequisite_class;
+			}
+
+			$prerequisite_object = new $prerequisit_classes[$module_path]();
+			/* @var $prerequisite_object InPortalPrerequisites */
+
+			if ( method_exists($prerequisite_object, 'setToolkit') ) {
+				$prerequisite_object->setToolkit($this);
+			}
+
+			// some errors possible
+			return $prerequisite_object->$method();
+		}
+
+		/**
 		 * Processes one license, received from server
 		 *
 		 * @param string $file_data