jQuery(document).ready(function($){
// Scroll (in pixels) after which the "To Top" link is shown
var offset = 300,
//Scroll (in pixels) after which the "back to top" link opacity is reduced
offset_opacity = 1200,
//Duration of the top scrolling animation (in ms)
scroll_top_duration = 700,
//Get the "To Top" link
$back_to_top = $('.to-top');
//Visible or not "To Top" link
$(window).scroll(function(){
( $(this).scrollTop() > offset ) ? $back_to_top.addClass('top-is-visible') : $back_to_top.removeClass('top-is-visible top-fade-out');
if( $(this).scrollTop() > offset_opacity ) {
$back_to_top.addClass('top-fade-out');
}
});
//Smoothy scroll to top
$back_to_top.on('click', function(event){
event.preventDefault();
$('body,html').animate({
scrollTop: 0 ,
}, scroll_top_duration
);
});
});
<?php //* Don't copy the php
// Enqueue To Top script
add_action( 'wp_enqueue_scripts', 'to_top_script' );
function to_top_script() {
wp_enqueue_script( 'to-top', get_stylesheet_directory_uri() . '/js/to-top.js', array( 'jquery' ), '1.0', true );
}
// Add To Top button
add_action( 'genesis_before', 'genesis_to_top');
function genesis_to_top() {
echo '<a href="#0" class="to-top" title="Back To Top">Top</a>';
}