// This script shows and hides the scroll indicator in the lower
// right hand corner of the page.
document.addEventListener('DOMContentLoaded', function() {
    const image = document.getElementById('scroll-image');
    const lastParallax = document.getElementById('last-parallax');

    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                image.style.display = 'none';
            } else {
                image.style.display = 'block'
            }
        });
    });

    observer.observe(lastParallax);
});