[Habbo] Auto Code Maker v2

/*
O antigo havia sido patch, então criei um novo.
#############################
# Auto Code Maker v2
# By phoenix (phnx_wc@hotmail.com)
# Não copie noob! ;*
# (c) 2013
##############################
*/
function code() {
    var i, chars = '1234567890qertyuiopasdfghjklzxcvbnm',
        str = '';
    for (i = 0; i < 8; i++)
    str += chars.substr((Math.floor(Math.random() * (chars.length + 1))), 1);
    return str;
};
Make = function () {
    var Code = document.createElement("iframe");
    Code.src = "http://www.habbo.com.br/credits?voucherCode=" + code();
    Code.id = Date.now();
    $$("head")[0].appendChild(Code);
    Code.onload = function () {
        new Make();
    };
};
new Make();