I made a javascript where a nav bar will appear when the page is scrolled down 100 px. However, I haven;t been able to get the code to work and make it appear when I scroll down and assume it maybe a variable problem so I declared them on both function. Any suggestion and help would be appreciated.
The full code is on the link
var scrolldown;
function navScroll() {
var navi = document.getElementById('nav');
var top = document.getElementById('startScroll');
scrolldown = top.pageYOffset;
if(scrolldown == 100) {
navi.style.display = "block";
function start(){
var top = document.getElementById('startScroll');
var navi = document.getElementById('nav');
top.addEventListener("scroll",navScroll);
}
window.onload = start;