if('atob' == typeof window.noFunc) {
    function atob (text) {
            text = text.replace(/\s/g,"");

            if(!(/^[a-z0-9\+\/\s]+\={0,2}$/i.test(text)) || text.length % 4 > 0){
                    throw new Error("Not a base64-encoded string.");
            }

            //local variables
            var digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
                    cur, prev, digitNum,
                    i=0,
                    result = [];

            text = text.replace(/=/g, "");

            while(i < text.length){

                    cur = digits.indexOf(text.charAt(i));
                    digitNum = i % 4;

                    switch(digitNum){

                            //case 0: first digit - do nothing, not enough info to work with

                            case 1: //second digit
                                    result.push(String.fromCharCode(prev << 2 | cur >> 4));
                                    break;

                            case 2: //third digit
                                    result.push(String.fromCharCode((prev & 0x0f) << 4 | cur >> 2));
                                    break;

                            case 3: //fourth digit
                                    result.push(String.fromCharCode((prev & 3) << 6 | cur));
                                    break;
                    }

                    prev = cur;
                    i++;
            }

            return result.join("");
    }
}