turn on/off charts

orun/extjs/app.html

@@ -4,8 +4,7 @@
     <title>{title}</title>
     <script src="{base_url}/ext_620/ext-all.js"></script>
     <link rel="stylesheet" href="{base_url}/ext_620/{theme_model}/theme-{theme}/resources/theme-{theme}-all.css">
-    <script type="text/javascript" src="{base_url}/ext_620/packages/charts/{theme_model}/charts.js"></script>
-	<link rel="stylesheet" type="text/css" href="{base_url}/ext_620/packages/charts/{chart_theme_model}/resources/charts-all.css">
+    {packages}
     
     <script>
     Ext.onReady(function () {{