From c53b7aacfc011f123b7684e18885a28c1a9b08c9 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Tue, 28 Aug 2012 16:29:47 -0500
Subject: [PATCH] Fixes scrollIntoView when scrollbars are hidden

---
 web/viewer.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/web/viewer.js b/web/viewer.js
index c30d48af7..6de7fa400 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -38,6 +38,8 @@ function scrollIntoView(element, spot) {
   while (parent.clientHeight == parent.scrollHeight) {
     offsetY += parent.offsetTop;
     parent = parent.offsetParent;
+    if (!parent)
+      return; // no need to scroll
   }
   if (spot)
     offsetY += spot.top;