if($_POST['aim'] == "checkLogin") {
	$loginOrEm = $_POST['loginOrEmail'];
	$whatExactly = "";
	$pass = sha1(md5($_POST['pass']));
	$user = $collection -> findOne(array('login' => $loginOrEm));
	$whatExactly = "login";
	if(is_null($user)) {
		$user = $collection -> findOne(array('email' => $loginOrEm));
		$whatExactly = "email";
	}
	if($user['password'] === $pass) {
		$hash = md5(genCode());
		setcookie('id', $user["_id"], time()+18000);
		setcookie('hash', $hash, time()+18000);
		if($whatExactly == "login") {
			$collection -> update(array('login' => $loginOrEm), array('$set' => array('hash' => $hash)), array('upsert' => false));
		}
		else {
			$collection -> update(array('email' => $loginOrEm), array('$set' => array('hash' => $hash)), array('upsert' => false));
		}
		echo "ok";
	} else {
		echo "Login or password is incorrect";
	}
}