protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         Util util = new Util();
         Hashtable State = (Hashtable)HttpRuntime.Cache[Session.SessionID];
         if (util.CheckSessionTimeout(State, Response, "Default.aspx")) return;
         XmlUtil x_util = new XmlUtil();
         State["PageTransitionType"] = x_util.GetPageTransitionType(State);
         PageTransitions.Items.FindItemByValue(State["PageTransitionType"].ToString()).Selected = true;
     }
 }