Class Cart {
	private $user_id
	private $username;

	private $items = array();
	private $expiry = 180;
	
	function __construct($user_id)
	{
		$this->user_id = $user_id;

		$sql = 'SELECT username FROM usertable WHERE user_id = '.$user_id;
		$res = mysql_query($sql) or die ('Could not do shit: '. mysql_error());
		$this->username = mysql_result($res, 0, "username");

		$this->Items();
		if ($user_id == -1) {
			$this->Expiry = 180;
		}
		else
		{
			$this->Expiry = 'never';
		}
	}
	
	public function additem($ItemID)
	{
		
		$this->Items[] = $ItemID;
		
	}

}