diff --git a/user_guide/nav/user_guide_menu.js b/user_guide/nav/user_guide_menu.js
new file mode 100644
index 0000000..f24f5d4
--- /dev/null
+++ b/user_guide/nav/user_guide_menu.js
@@ -0,0 +1,4 @@
+window.onload = function() {
+	myHeight = new fx.Height('nav', {duration: 400});
+	myHeight.hide();
+}
\ No newline at end of file