protected void Button1_Click(object sender, EventArgs e)
    {
        string str  = "Your acoount has been deactivated.";
        string stre = "Your acoount has been not deactivated.";

        bool status = dba.deactivateUserAccountByUser(Session["user"].ToString());

        if (status)
        {
            Response.Write("<script language='javascript'>alert('" + str + "');</script>");
            Response.Redirect("~/Default.aspx");
        }
        else
        {
            Response.Write("<script language='javascript'>alert('" + stre + "');</script>");
        }
    }