diff --git a/html/js/scripts.js b/html/js/scripts.js
index d0bea0d41..47e26a07f 100644
--- a/html/js/scripts.js
+++ b/html/js/scripts.js
@@ -2830,7 +2830,7 @@ function logout()
  */
 function create_anchor_up()
 {
-    if ( $('up_top')) return;
+    if ( document.getElementById('up_top')) return;
     
     var newElt = new Element('div');
     newElt.setAttribute('id', 'up_top');