cpf.js

 function gerarCPF(a) {
                var b = !0
                  , c = 9
                  , d = randomiza(c)
                  , e = randomiza(c)
                  , f = randomiza(c)
                  , g = randomiza(c)
                  , h = randomiza(c)
                  , i = randomiza(c)
                  , j = randomiza(c)
                  , k = randomiza(c)
                  , l = randomiza(c)
                  , m = 2 * l + 3 * k + 4 * j + 5 * i + 6 * h + 7 * g + 8 * f + 9 * e + 10 * d;
                m = 11 - mod(m, 11),
                m >= 10 && (m = 0);
                var n = 2 * m + 3 * l + 4 * k + 5 * j + 6 * i + 7 * h + 8 * g + 9 * f + 10 * e + 11 * d;
                n = 11 - mod(n, 11),
                n >= 10 && (n = 0),
                retorno = "",
                cpf = b ? "" + d + e + f + "." + g + h + i + "." + j + k + l + "-" + m + n : "" + d + e + f + g + h + i + j + k + l + m + n,
                a.value = cpf
            }
            function validarCPF(a) {
                if (a = a.replace(/[^\d]+/g, ""),
                "" == a)
                    return !1;
                if (11 != a.length || "00000000000" == a || "11111111111" == a || "22222222222" == a || "33333333333" == a || "44444444444" == a || "55555555555" == a || "66666666666" == a || "77777777777" == a || "88888888888" == a || "99999999999" == a)
                    return !1;
                for (add = 0,
                i = 0; i < 9; i++)
                    add += parseInt(a.charAt(i)) * (10 - i);
                if (rev = 11 - add % 11,
                (10 == rev || 11 == rev) && (rev = 0),
                rev != parseInt(a.charAt(9)))
                    return !1;
                for (add = 0,
                i = 0; i < 10; i++)
                    add += parseInt(a.charAt(i)) * (11 - i);
                return rev = 11 - add % 11,
                (10 == rev || 11 == rev) && (rev = 0),
                rev != parseInt(a.charAt(10)) ? !1 : !0
            }
            function gerarCNPJ(a) {
                var b = !0
                  , c = 9
                  , d = randomiza(c)
                  , e = randomiza(c)
                  , f = randomiza(c)
                  , g = randomiza(c)
                  , h = randomiza(c)
                  , i = randomiza(c)
                  , j = randomiza(c)
                  , k = randomiza(c)
                  , l = 0
                  , m = 0
                  , n = 0
                  , o = 1
                  , p = 2 * o + 3 * n + 4 * m + 5 * l + 6 * k + 7 * j + 8 * i + 9 * h + 2 * g + 3 * f + 4 * e + 5 * d;
                p = 11 - mod(p, 11),
                p >= 10 && (p = 0);
                var q = 2 * p + 3 * o + 4 * n + 5 * m + 6 * l + 7 * k + 8 * j + 9 * i + 2 * h + 3 * g + 4 * f + 5 * e + 6 * d;
                q = 11 - mod(q, 11),
                q >= 10 && (q = 0),
                retorno = "",
                cnpj = b ? "" + d + e + "." + f + g + h + "." + i + j + k + "/" + l + m + n + o + "-" + p + q : "" + d + e + f + g + h + i + j + k + l + m + n + o + p + q,
                a.value = cnpj
            }