Tic Tac Toe game

tic-tac-toe.js

(function() {
    var player1 = new player('Federico', 'Bucchi', 'X');
    var player2 = new player('Mac', 'BookPro', 'O');
    var wins = [
        [1, 2, 3],
        [4, 5, 6],
        [7, 8, 9],
        [1, 4, 7],
        [2, 5, 8],
        [3, 6, 9],
        [1, 5, 9],
        [3, 5, 7]
    ];
    var end = false;
    var moves = 0;
    var tableEl;
    var tdEl;
    var activeUser;
    var maxMoves;

    function player(name, lastname, symbol) {
        this.name = name;
        this.lastname = lastname;
        this.symbol = symbol;
        this.points = 0;
        this.checks = [];
    };

    function initTable () {
        tableEl = document.getElementsByTagName('table')[0];
        tdEl = tableEl.getElementsByTagName('td');

        for (var i = 1; i <= tdEl.length; i++) {
            tdEl[i - 1].setAttribute('class', i);
            tdEl[i - 1].addEventListener('click', function() {
                selectCell(this);
            }, false);

            maxMoves = i;
        }
    };

    function initGame () {
        end = false;
        moves = 0;

        player1.checks = [];
        player2.checks = [];
        activeUser = player1;

        for (var i = 0; i <= tdEl.length; i++) {
            tdEl[i].innerHTML = '';
        }
    };

    function switchPLayer () {
        if (activeUser === player1) {
            activeUser = player2;
        } else {
            activeUser = player1;
        }
    };

    function selectCell(cell) {
        if (cell.innerHTML === '') {
            cell.innerHTML = activeUser.symbol;
            activeUser.checks.push(cell.className);

            moves += 1;

            checkEnd();
        }
    };

    function checkEnd () {
        var match;

        for (var i = 0; i < wins.length; i++) {
            match = 0;

            for (var x = 0; x < activeUser.checks.length; x++) {

                if (wins[i].indexOf(+activeUser.checks[x]) > -1) {
                    match += 1;
                }
            }

            if (match >= 3) {
                end = true;

                break;
            }
        }

        if (!end) {
            if (maxMoves === moves) {
                alert('Tie');

                initGame();
            } else {
                switchPLayer();
            }
        } else {
            alert(activeUser.name + ' Wins');

            activeUser.points += 1;

            initGame();
        }
    };

    initTable();
    initGame();
})()