diff --git a/public/js/index.js b/public/js/index.js
index 4be11e8..1ba10e1 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -1915,6 +1915,9 @@ function scrollToBottom() {
     }
 }
 
+window.scrollToTop = scrollToTop;
+window.scrollToBottom = scrollToBottom;
+
 var enoughForAffixToc = true;
 
 //scrollspy