function actualizaCont($email, $cont)
 {
     $contra = MD5($cont);
     $con = new Conexionppn();
     $sql = "UPDATE login SET login_contra = '{$contra}' WHERE login_usuario = '{$email}' ";
     $con->sql($sql);
 }
 function getUserType($user)
 {
     $con = new Conexionppn();
     $sql = "SELECT * FROM login WHERE login_usuario = '{$user}' ";
     $result = $con->sql($sql);
     return $result;
 }