What's my number?

The following is my JavaScript code used - update when changing:
(CREATE: a div that allows user to scroll the JS code up underneath the game without showing through; image of shrugging character or a means to display via web; function to let user hit enter instead of clicking check guess button; button to toggle code visible/invisible)

<script>

var userInput_var;
var actualSecretNum_var;
var counter_var = 0;


window.onload = onLoad_fun;

function onLoad_fun(){

	secretNum_fun();
	ShowCounter_fun();
	disableButtonTwo_fun();
	disableButtonThree_fun();
    enableButtonOne_fun();
	document.getElementById("userInput_id").value = "";
}

function TickUpCounter_fun(){

	Number(counter_var += 1);
    
    if(counter_var == 15){
    document.getElementById("Alert_1_id").innerHTML = "Game Over.  The number was actually " + actualSecretNum_var;
    disableButtonOne_fun();
    disableButtonTwo_fun();
    enableButtonThree_fun();
}
        
	else if(counter_var >= 10){
	document.getElementById("Alert_1_id").innerHTML = "oh I guess you could give up, if your scared?";
	enableButtonTwo_fun();
}

	else{
	document.getElementById("Alert_1_id").innerHTML = "So, you're up for the challenge, huh?!?";
}
}

function ShowCounter_fun(){
	document.getElementById("ShowCounter_id").innerHTML = counter_var;
}

function secretNum_fun(){

	//this function is successful and complete.  it generates a random number between 1 and 100.

	actualSecretNum_var = Math.floor(Math.random()* 100);

	if (actualSecretNum_var != 0) {
	document.getElementById("demo_id").innerHTML = actualSecretNum_var;
}
    else {
	secretNum_fun(); 
} 
}

function GetThatNumber_fun(){

	userInput_var = document.getElementById("userInput_id").value;

    if(Number(userInput_var) == actualSecretNum_var){
    document.getElementById("Alert_2_id").innerHTML = "Glorious!!!!! The number is   you absolutely dominated!!!!";
    document.getElementById("Alert_3_id").innerHTML = actualSecretNum_var;
    disableButtonOne_fun();
    enableButtonThree_fun();
    document.getElementById("Alert_4_id").innerHTML = "";
}

	else if(Number(userInput_var) < actualSecretNum_var){
	document.getElementById("Alert_2_id").innerHTML = "Nope, that's not correct, your gonna need to try again, this time guess higher!";
}

	else if(Number(userInput_var) > actualSecretNum_var){
	document.getElementById("Alert_2_id").innerHTML = "Nope, that's not correct, your gonna need to try again, this time guess lower!";
}
}

function CheckYourGuess_fun(){

	GetThatNumber_fun();
	TickUpCounter_fun();
	ShowCounter_fun();
	document.getElementById("userInput_id").value = "";
}

function iGiveUp_fun(){
alert("Short on time?  I mean, you've got no more than 5 guesses left, but you give up?  Wow, just wow.");
location.reload();
}

function goAgain_fun(){
location.reload();
}

function toggleCode_fun() {
    var x = document.getElementById('Alert_5_id');
    if (x.style.display === 'none') {
        x.style.display = 'block';
    } else {
        x.style.display = 'none';
    }
}

function disableButtonOne_fun() {
	document.getElementById("CheckYourGuess_id").disabled = true;
}

function enableButtonOne_fun() {
	document.getElementById("CheckYourGuess_id").disabled = false;
}

function disableButtonTwo_fun() {
	document.getElementById("IgiveUp_id").disabled = true;
}

function enableButtonTwo_fun() {
	document.getElementById("IgiveUp_id").disabled = false;
}

function disableButtonThree_fun() {
	document.getElementById("GoAgain_id").disabled = true;
}

function enableButtonThree_fun() {
	document.getElementById("GoAgain_id").disabled = false;
}

</script>