Add mobile version in site settings

app/controllers/application_controller.rb

@@ -250,8 +250,10 @@ class ApplicationController < ActionController::Base
   end
 
   def prepare_for_mobile
-    session[:mobile_param] = params[:mobile] if params[:mobile]
-    request.format = :mobile if mobile_device?
+    if @site.mobile_on
+      session[:mobile_param] = params[:mobile] if params[:mobile]
+      request.format = :mobile if mobile_device?
+    end
   end
 
 end