Index: branches/5.0.x/core/kernel/application.php
===================================================================
diff -u -r12366 -r12368
--- branches/5.0.x/core/kernel/application.php	(.../application.php)	(revision 12366)
+++ branches/5.0.x/core/kernel/application.php	(.../application.php)	(revision 12368)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: application.php 12366 2009-08-23 15:59:48Z alex $
+* @version	$Id: application.php 12368 2009-08-23 21:55:59Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -348,7 +348,7 @@
 			}
 
 			$this->Session->SetField('GroupList', $user_groups);
-			$this->StoreVar('UserGroups', $user_groups);
+			$this->StoreVar('UserGroups', $user_groups, true); // true for optional
 		}
 
 		$this->HttpQuery->AfterInit();
@@ -382,7 +382,9 @@
 		}*/
 
 		if ($this->GetVar('m_cat_id') === false) $this->SetVar('m_cat_id', 0);
-		if( !$this->RecallVar('curr_iso') ) $this->StoreVar('curr_iso', $this->GetPrimaryCurrency() );
+		if (!$this->RecallVar('curr_iso')) {
+			$this->StoreVar('curr_iso', $this->GetPrimaryCurrency(), true); // true for optional
+		}
 
 		$this->SetVar('visits_id', $this->RecallVar('visit_id') );
 
@@ -1235,7 +1237,7 @@
 	/**
 	 * Allows to parse given block name or include template
 	 *
-	 * @param Array $params Parameters to pass to block/template. Reserved parameter "name" used to specify block/template name.
+	 * @param Array $params Parameters to pass to block. Reserved parameter "name" used to specify block name.
 	 * @param Array $pass_params Forces to pass current parser params to this block/template. Use with cauntion, because you can accidently pass "block_no_data" parameter.
 	 * @param bool $as_template
 	 * @return string
@@ -1250,6 +1252,17 @@
 	}
 
 	/**
+	 * Allows to include template with a given name and given parameters
+	 *
+	 * @param Array $params Parameters to pass to template. Reserved parameter "name" used to specify template name.
+	 * @return string
+	 */
+	function IncludeTemplate($params)
+	{
+		return $this->Parser->IncludeTemplate($params, isset($block_params['is_silent']) ? 1 : 0);
+	}
+
+	/**
 	 * Returns index file, that could be passed as parameter to method, as parameter to tag and as constant or not passed at all
 	 *
 	 * @param string $prefix
@@ -1936,7 +1949,7 @@
 			$this->SetVar('u_id', $user_id);
 		}
 
-		$this->StoreVar('user_id', $user_id);
+		$this->StoreVar('user_id', $user_id, $user_id == -2); // storing Guest user_id (-2) is optional
 
 		if ($this->GetVar('expired') == 1) {
 			// this parameter is set only from admin