fix ACL admin footnote JS error, fixes #2540

- ACL's hand-written template doesn't use div.content to wrap the footnote content
- jQuery object existence check should use $obj.length

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/scripts/page.js b/lib/scripts/page.js
index aadff8ecf..2332af4de 100644
--- a/lib/scripts/page.js
+++ b/lib/scripts/page.js
@@ -89,7 +89,7 @@ dw_page = {
         var $content = jQuery(jQuery(this).attr('href')) // Footnote text anchor
                       .parent().siblings('.content').clone();
 
-        if (!$content) {
+        if (!$content.length) {
             return;
         }