if (!isset($_SESSION['cuentaCredito']) && !isset($_SESSION['cuentaCorriente']))
    {
        $_SESSION['cuentaCredito'] = new CuentaCredito(1122335566,strtotime("02/15/2007"),5000,1000,25000,2.7,3,15.8);
        $_SESSION['cuentaCredito']->InsertarTitular(new Titular("35432494M","John Lennard","C/ Soria 82","928717171","669555888","928717172",strtotime("10/13/1989"),hash("sha256","jl123")));
        $_SESSION['cuentaCredito']->InsertarTitular(new Titular("91849573Q","George Stobard","C/ Rafael Cabrera 25 1º-Izquierda","928252525","666999888","928252526",strtotime("02/25/1979"),hash("sha256","gs123")));
        $_SESSION['cuentaCorriente'] = new CuentaCorriente(3344556677,strtotime("11/12/2010"),1000,0,5,2.5);
        $_SESSION['cuentaCorriente']->InsertarTitular(new Titular("94736986D","Michael Jackson","C/ Gregoriano 69","928585858","696969696","928585859",strtotime("01/01/1971"),hash("sha256","mj123")));
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