var x = prompt("who's there?");
var admin = "admin"
var pass = "password"
if (x == admin) {
    var y = prompt("Password");
    if (y == pass) {
        alert("Welcome!");
    } else if (y === "cancel") {
    } else {
        alert("wrong password")
    }
} else if (x === "cancel") {
} else {
    alert("i dont know")
}