class userAuth {
		public $username;
		public $user_id;
		private $password;
		private $_resultCode;

		public function __construct($username,$password) {
			$this->username = $username;
			$this->password = $password;
			$this->_resultCode = -1;
		}

		public function getResultCode() {
			return $this->_resultCode;
		}

		public function authenticateUser($dbConnect) {
			$qry_username = $this->username;
			$user_query = "SELECT * FROM users_tbl WHERE username='$qry_username'";
			$user_result = mysql_query($user_query,$dbConnect);

			if(mysql_num_rows($user_result) > 0) {
				$this->_resultCode = 1;
				while ($user_row = mysql_fetch_assoc($user_result)) {
					if ($user_row['password'] == md5($this->password)) {
						$this->user_id = $user_row['user_id'];
						$this->_resultCode = 2;
					}
				}
			} else $this->_resultCode = -1;
		}

	}