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var form = document.getElementById("credform");
var username = document.getElementById("usrname");
var password = document.getElementById("psw");
var info = document.getElementById("infolabel");
var checkbtn = document.getElementById("checkbtn");
var encoded_key = "P1xNFigYIh0BGAofD1o5RSlXeRU2JiQQSSgCRAJdOw=="

function dataEntered() {
    if (username.value.length > 0 && password.value.length > 0) {
        checkbtn.disabled = false;
    } else {
        checkbtn.disabled = true;
    }
}

function checkCreds() {
    if (username.value == "Admin" && atob(password.value) == "goldenticket") 
    {
        var key = atob(encoded_key);
        var flag = "";
        for (let i = 0; i < key.length; i++)
        {
            flag += String.fromCharCode(key.charCodeAt(i) ^ password.value.charCodeAt(i % password.value.length))
        }
        document.getElementById("banner").style.display = "none";
        document.getElementById("formdiv").style.display = "none";
        document.getElementById("message").style.display = "none";
        document.getElementById("final_flag").innerText = flag;
        document.getElementById("winner").style.display = "block";
    }
    else
    {
        document.getElementById("message").style.display = "block";
    }
}