Validação de cartão de crédito com referência à tabela IIN e validação com algoritimo de Luhn mod 10

cardCheck.js

//# Cria objeto primario caso não exista
if(typeof lavamosnos == 'undefined') lavamosnos = new Object();

//# Cria objeto secundário relacionado à classe quando não existir
if(typeof lavamosnos.card == 'undefined') lavamosnos.card = new Object();

var operators = [{
					flag : 'visa',
					maxNumber : [
									13,16
								],
					maxCVV : 3,
					initNumber : [
									4
								 ]
				},
				{
					flag : 'mastercard',
					maxNumber : [
									16
								],
					maxCVV : 3,
					initNumber : [
									5
								 ]
				},
				{
					flag : 'diners',
					maxNumber : [
									14,16
								],
					maxCVV : 3,
					initNumber : [
									301, 
									305, 
									36, 
									38
								 ]
				},
				{
					flag : 'elo',
					maxNumber : [
									16
								],
					maxCVV : 3,
					initNumber : [	4011, 
									401178, 
									401179, 
									431274, 
									438935, 
									451416, 
									457393, 
									4576, 
									457631, 
									457632, 
									504175, 
									[506699, 506778],
									[509000, 509999],
									627780, 
									636297, 
									636368, 
									636369,
									[650031, 650033],
									[650035, 650051],
									[650405, 650439],
									[650485, 650538],
									[650541, 650598],
									[650700, 650718],
									[650720, 650727],
									[650901, 650920],
									[651652, 651679],
									[655000, 655019],
									[655021, 655058]
								 ]
				},
				{
					flag : 'amex',
					maxNumber : [
									15
								],
					maxCVV : 4,
					initNumber : [
									[340000, 349999],
									[370000, 379999]
								 ]
				},
				{
					flag : 'discover',
					maxNumber : [
									16
								],
					maxCVV : 4,
					initNumber : [
									6011, 
									622, 
									64, 
									65
								 ]
				},
				{
					flag : 'aura',
					maxNumber : [
									16
								],
					maxCVV : 3,
					initNumber : [
									50
								 ]
				},
				{
					flag : 'jcb',
					maxNumber : [
									16
								],
					maxCVV : 3,
					initNumber : [
									35
								 ]
				},
				{
					flag : 'hipercard',
					maxNumber : [
									13,16,19
								],
					maxCVV : 3,
					initNumber : [
									384100, 
									384140, 
									384160, 
									606282
								 ]
				}];

//# Decladração das funções dentro do objeto criado
lavamosnos.card = {

	init: function(){

		//# check flag
		$('#numberCard').keyup(lavamosnos.card.checkFlag);

		//# check numMax Card
		$('#numberCard').blur(lavamosnos.card.checkNumMax);

		//# check CVv
		$('#cvvCard').blur(lavamosnos.card.checkCvv);

	},

	checkFlag: function(){

		var number = $('#numberCard').val();

		window.flag = false;

		var base = 0;

		$.each(operators, function(i,j){

			$.each(j.initNumber, function(k,w){

				if(typeof(w) == 'number'){

					if(number.replace(" ", "").substring(0, w.toString().length) == w.toString()){

						if(w.toString().length > base){

							base = w.toString().length;

							flag = j.flag;

						}
						
					}
					
				}

				if(typeof(w) == 'object'){

					var numberBase = parseInt(number.replace(" ", "").substring(0, w[0].toString().length));

					if(
						(numberBase >= w[0]) &&
						(numberBase <= w[1])
					  ){

						if(w.toString().length > base){

							base = w.toString().length;

							flag = j.flag;

						}
						
					}
					
				}

				var image = false;

				switch(flag){
					case 'visa':
						image = 'card-visa.png';
						break;
					case 'mastercard':
						image = 'card-master.png';
						break;
					case 'diners':
						image = 'card-diners.png';
						break;
					case 'elo':
						image = 'card-elo.png';
						break;
					case 'amex':
						image = 'card-amex.png';
						break;
					case 'discover':
						image = 'card-discover.png';
						break;
					case 'aura':
						image = 'card-aura.png';
						break;
					case 'jcb':
						image = 'card-jcb.png';
						break;
					case 'hipercard':
						image = 'card-hiper.png';
						break;
				}

				if(image !== false){

					$('.card-flag').html('<img src="'+lavamosnos.general.image(image)+'" />');

				}else{

					$('.card-flag').html('');

				}

			});

		});

	},

	checkNumMax: function(){

		var number = $('#numberCard').val();

		window.numValidate = false;

		if(window.flag !== false){

			$.each(operators, function(i,j){

				if(j.flag == window.flag)
					if(j.maxNumber.indexOf(number.split(" ").join("").length) != -1)
						numValidate = true;

			});

		}
		
		window.luhn = lavamosnos.card.luhn(number);

		if((window.flag == 'amex') && (luhn === false))
			luhn = lavamosnos.card.luhn(number,true);

	},

	luhn: function(number, reverse){

		var odd = [];
		var pair = [];
		var tt_odd = 0;
		var tt_pair = 0;
		var gsdf = 'erwseafdas';

		number = number.split(' ').join('');

		var lastKey = parseInt(number.slice(-1));

		var chars = number.split('');

		if(typeof reverse !== 'undefined')
			chars = chars.reverse();

		$.each(chars,function(j,i){

			if((j + 1) < number.length){

				if(j % 2 ? 0 : 1){
					odd.push(i);
				}else{
					pair.push(i);
				}

			}else{

			}

		});

		$.each(odd,function(){

			var tt = parseInt(this) * 2;

			if(tt > 9){

				var tmp = tt.toString().split('');

				tt = parseInt(tmp[0]) + parseInt(tmp[1]);

			}

			tt_odd += tt;

		});

		$.each(pair,function(){
			tt_pair += parseInt(this);
		});

		var key = ((parseInt((tt_odd + tt_pair) / 10) * 10) + 10) - (tt_odd + tt_pair);

		return key == lastKey;

	},

	checkCvv: function(){

		var cvv = $('#cvvCard').val();

		window.cvvValidate = false;

		if(window.flag !== false){

			$.each(operators, function(i,j){

				if(j.flag == window.flag)
					if(j.maxCVV == cvv.toString().length)
						cvvValidate = true;

			});

		}

	}

}

$(document).ready(lavamosnos.card.init);