private void Page_Load(object sender, System.EventArgs e)
		{
			Session["test"] = "123";
			Response.Write ( Session["test"].ToString());
		}

		private void Page_Load(object sender, System.EventArgs e)
		{
		  if ( Session["test"] != null ) Response.Write( Session["test"].ToString()  );
			else Response.Write( " no session ");
		}

if ( Session.IsNewSession ) Response.Write( " new session ");
	Response.Write("<br>");
	Response.Write( Session.SessionID.ToString());