jQuery(document).ready(function($) {
var offset = 100,
speed = 250,
duration = 500,
scrollButton = $("#topbutton");
$(window).scroll(function() {
if ($(this).scrollTop() < offset) {
scrollButton.fadeOut(duration);
} else {
scrollButton.fadeIn(duration);
}
});
scrollButton.on("click", function(e) {
e.preventDefault();
$("html, body").animate(
{
scrollTop: 0
},
speed
);
});
});
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