From 48d0159a92bf51488e83958dab5c4a39ba985028 Mon Sep 17 00:00:00 2001
From: Dmitriy Simushev <simushevds@ossg.ru>
Date: Mon, 15 Apr 2013 11:53:45 +0000
Subject: [PATCH] Fix notice about undefined index 'visitorid' in client.php

---
 src/messenger/webim/client.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/messenger/webim/client.php b/src/messenger/webim/client.php
index 1f24a69d..b0f4eed4 100644
--- a/src/messenger/webim/client.php
+++ b/src/messenger/webim/client.php
@@ -105,10 +105,13 @@ if( !isset($_GET['token']) || !isset($_GET['thread']) ) {
 		}
 
 		// Get invitation info
-		$invitation_state = invitation_state($_SESSION['visitorid']);
-		$visitor_is_invited = Settings::get('enabletracking')
-			&& $invitation_state['invited']
-			&& !$invitation_state['threadid'];
+		if (Settings::get('enabletracking')) {
+			$invitation_state = invitation_state($_SESSION['visitorid']);
+			$visitor_is_invited = $invitation_state['invited']
+				&& !$invitation_state['threadid'];
+		} else {
+			$visitor_is_invited = false;
+		}
 
 		// Check if survey should be displayed
 		if(Settings::get('enablepresurvey') == '1' && !$visitor_is_invited) {