From 4063422b2ff7e6a9d56d7335cfdd2a8c87f49132 Mon Sep 17 00:00:00 2001
From: Andreas Gohr <andi@splitbrain.org>
Date: Thu, 11 Dec 2014 20:41:46 +0100
Subject: offsets are not available for hidden elements

---
 lib/scripts/behaviour.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'lib/scripts/behaviour.js')

diff --git a/lib/scripts/behaviour.js b/lib/scripts/behaviour.js
index 16676959e..9a2cbaf13 100644
--- a/lib/scripts/behaviour.js
+++ b/lib/scripts/behaviour.js
@@ -64,9 +64,14 @@ var dw_behaviour = {
     scrollToMarker: function(){
         var $obj = jQuery('#scroll__here');
         if($obj.length) {
-            jQuery('html, body').animate({
-                scrollTop: $obj.offset().top - 100
-            }, 500);
+            if($obj.offset().top != 0) {
+                jQuery('html, body').animate({
+                    scrollTop: $obj.offset().top - 100
+                }, 500);
+            } else {
+                // hidden object have no offset but can still be scrolled into view
+                $obj[0].scrollIntoView();
+            }
         }
     },
 
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