28 lines
879 B
JavaScript
28 lines
879 B
JavaScript
jQuery(document).ready(function($){
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// browser window scroll (in pixels) after which the "back to top" link is shown
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var offset = 300,
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//browser window scroll (in pixels) after which the "back to top" link opacity is reduced
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offset_opacity = 1200,
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//duration of the top scrolling animation (in ms)
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scroll_top_duration = 700,
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//grab the "back to top" link
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$back_to_top = $('.cd-top');
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//hide or show the "back to top" link
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$(window).scroll(function(){
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( $(this).scrollTop() > offset ) ? $back_to_top.addClass('cd-is-visible') : $back_to_top.removeClass('cd-is-visible cd-fade-out');
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if( $(this).scrollTop() > offset_opacity ) {
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$back_to_top.addClass('cd-fade-out');
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}
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});
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//smooth scroll to top
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$back_to_top.on('click', function(event){
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event.preventDefault();
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$('body,html').animate({
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scrollTop: 0 ,
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}, scroll_top_duration
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);
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});
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}); |