Improved slider behaviour and fixed prefix handling
diff --git a/dev/demo/menudemo.js b/dev/demo/menudemo.js
index 1e7fd7e..244aff4 100644
--- a/dev/demo/menudemo.js
+++ b/dev/demo/menudemo.js
@@ -74,8 +74,7 @@
 
   document.getElementById('menu').appendChild(menu.element());
 
-  menu._active = 3;
   menu.limit(3);
-  menu.show('');
+  menu.show(0); // Make this a 3
   menu.focus();
 });