diff --git a/templates/templates-parts/iai/footer-javascript.php b/templates/templates-parts/iai/footer-javascript.php
index d439e2292129e482f15b40d0a4c638e7b0014a07..5e51d09e8428ada1247b1ed2482c449c8fbb094e 100644
--- a/templates/templates-parts/iai/footer-javascript.php
+++ b/templates/templates-parts/iai/footer-javascript.php
@@ -78,7 +78,7 @@
                     $('.iai-nav').removeClass('opened');
                 });
 
-                if(anchor1 && anchor2 && anchor3 && anchor4){
+                if(anchor1.offset().top && anchor2.offset().top && anchor3.offset().top && anchor4.offset().top){
                   $(window).on("scroll", function()
                   {
                       var scrolltop = $(this).scrollTop();