protected void Page_Load(object sender, EventArgs e)
 {
     if (Session["clg_id"] != null)
     {
         DataSet ds       = bl.get_clg_by_clg_id(Convert.ToInt32(Session["clg_id"]));
         string  clg_name = ds.Tables[0].Rows[0]["clg_name"] + " (" + ds.Tables[0].Rows[0]["clg_code"] + ")";
         lbl_clg_name.Text = clg_name;
     }
     if (!IsPostBack)
     {
         if (Session["clg_ad_id"] == null)
         {
             Response.Redirect("clg_ad_login.aspx");
         }
         else
         {
             Response.ClearHeaders();
             Response.AddHeader("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate");
             Response.AddHeader("Pragma", "no-cache");
         }
     }
 }