function __construct()
 {
     $c1 = new Corredor("Manolo", "Perez", "Rodriguez", time(), "Maraton Rioja", "000000", "Dir1", "asdf", "*****@*****.**");
     $c2 = new Corredor("Carlos", "Casas", "Rodriguez", time(), "Añares", "1111111", "Dir2", "asdf", "*****@*****.**");
     $c3 = new Corredor("Pepe", "Saez", "Rodriguez", time(), "Beronia", "222222", "Dir3", "asdf", "*****@*****.**");
     $salt = '0df49b291afb4f39b348a849eba94a94';
     $pass = '******';
     $c1->setPassword($pass);
     $c1->setSalt($salt);
     $c2->setPassword($pass);
     $c2->setSalt($salt);
     $c3->setPassword($pass);
     $c3->setSalt($salt);
     $this->registrarCorredor($c1);
     $this->registrarCorredor($c2);
     $this->registrarCorredor($c3);
 }