Javascript Dealer class for card games.

dealer.js

var Dealer = function (deckCount, suitCount) {

    var suits = ['♥', '♣', '♦', '♠'],	// French suits as a default
        pack = [],		// cards yet to be dealt (stock/shoe)
        played = [],	// cards already dealt
        i,
        j;

    deckCount = deckCount || 1;
    suitCount = suitCount || 4;

    // generate basic 52-card deck
    for (j = 0; j < suitCount; j++) {
        for (i = 1; i < 14; i++) {
            pack.push(suits[j] + i);
        }
    };

    // put the right number of decks in the pack
    while (--deckCount) {
        pack = pack.concat(pack.slice(0, 52));
    };

    return {

        // Fisher-Yates shuffle - http://jsfromhell.com/array/shuffle
        shuffle: function () {
            for(var j, x, v = pack, i = v.length; i; j = ~~(Math.random() * i), x = v[--i], v[i] = v[j], v[j] = x);
        },

        // deals from the top of the deck, defaults to 1 card
        deal: function (num) {
            var cards = pack.splice(0, num || 1);
            played = played.concat(cards);

            return cards;
        },

        // put the played cards back in the deck, defaults to keeping the original order
        recycleDeck: function (reshuffle) {
            pack = pack.concat(played);
            played = [];

            if (reshuffle) {
                this.shuffle();
            }
        }
    };
};