(function () {
var header = document.getElementById('mainHeader');
function changeHeader() {
var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
header.classList.toggle('header-background', scrollTop >= 50 || document.body.classList.contains('nav-open'));
}
var didScroll = false;
$(window).scroll(function () {
didScroll = true;
});
setInterval(function () {
if (didScroll) {
didScroll = false;
changeHeader();
}
}, 100);
changeHeader();
document.getElementById('open-nav').addEventListener('click', function (event) {
event.preventDefault();
document.body.classList.toggle('nav-open');
changeHeader();
});
$('a[href*=\\#]').on('click', function (event) {
event.preventDefault();
$('html, body').animate({
scrollTop: $(this.hash).offset().top
}, 500);
});
})();