public function login()
{
require_once 'model/doctor.php';
//echo "in login";
//session_start();
$user_name = $_POST['username'];
$pwd = $_POST['password'];
//$encpwd = sha1($password);
//echo $username . $password;
Doctor::auth($user_name, $pwd);
// var_dump("yay");
header('location: view/doctor/profile.php');
}