private static void AddSkinstoCombo(DotNetNuke.Web.UI.WebControls.DnnComboBox combo, string strRoot)
 {
     if (Directory.Exists(strRoot))
     {
         foreach (var strFolder in Directory.GetDirectories(strRoot))
         {
             var strName = strFolder.Substring(strFolder.LastIndexOf("\\") + 1);
             if (strName != "_default")
             {
                 combo.AddItem(strName, strFolder.Replace(Globals.ApplicationMapPath, "").ToLower());
             }
         }
     }
 }