cript>
// When the user scrolls down 20px from the top of the document, show the button
window.onscroll = function() {scrollFunction()};
function scrollFunction() {
if (document.body.scrollTop > 150 || document.documentElement.scrollTop > 150) {
document.getElementById("gotoTop").style.display = "block";
} else {
document.getElementById("gotoTop").style.display = "none";
}
}
// When the user clicks on the button, scroll to the top of the document
function topFunction() {
$('html, body').animate({scrollTop:0}, 'slow');
}
