function use before definition is still working .. happy mode.

front-end/js/common.js

-function toggle_sidemenu(){
-    if( $$("menu").config.hidden){
-      $$("menu").show();
-    }
-    else
-      $$("menu").hide();
-}
 
 var top_toolbar = { 
             "view": "toolbar", "id": "header", "css": "webix_dark", "padding": { "right": 10, "left": 10 },
 			]
         };
 
+function toggle_sidemenu(){
+    if( $$("menu").config.hidden){
+        $$("menu").show();
+    }
+    else
+        $$("menu").hide();
+}
 function initTopMenu(layout, view){
     if ($$(layout) && $$(view))
         webix.ui(top_toolbar, $$(layout), $$(view));