Need help with errors

[Sl1ver]

I read some stuff on google but nothing that really could help me here is the problem

Notice: Undefined index: id in C:\Program Files (x86)\EasyPHP-5.3.8.1\www\dem o.php on line 18

line18: if($_SESSION['id'] && !isset($_COOKIE['tzRemember']) && !$_SESSION['rememberMe'])
{
	// If you are logged in, but you don't have the tzRemember cookie (browser restart)
	// and you have not checked the rememberMe checkbox:

	$_SESSION = array();
	session_destroy();
	
	// Destroy the session
}

another one

Notice: Undefined index: submit in C:\Program Files (x86)\EasyPHP-5.3.8.1\www\dem o.php on line 39

if($_POST['submit']=='Login')

[johny10151981]

make sure your index 'id' in _SESSION exists using isset function