From 27a94eb48ae7ddca77c404fddd8df1913b0b9e24 Mon Sep 17 00:00:00 2001
From: Michael Jumper <zhangmaike@users.sourceforge.net>
Date: Sat, 12 Feb 2011 18:10:46 -0800
Subject: [PATCH] Fixed error when layers are missing

---
 guacamole-common-js/src/main/resources/guacamole.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/guacamole-common-js/src/main/resources/guacamole.js b/guacamole-common-js/src/main/resources/guacamole.js
index 5ad4b8f7c..4208eb4fc 100644
--- a/guacamole-common-js/src/main/resources/guacamole.js
+++ b/guacamole-common-js/src/main/resources/guacamole.js
@@ -480,8 +480,10 @@ function GuacamoleClient(display, tunnelURL) {
                 display.innerHTML = "";
 
                 // Add existing layers in order
-                for (var i=0; i<layers.length; i++)
-                    display.appendChild(layers[i]);
+                for (var i=0; i<layers.length; i++) {
+                    if (layers[i])
+                        display.appendChild(layers[i]);
+                }
 
                 // Add cursor layer last
                 if (cursor != null)