19 lines
807 B
JavaScript
19 lines
807 B
JavaScript
//on ready
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$(document).ready(function(){
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//create bounce scroll div
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$('body').append('<div id="bounce_scroll_div"></div>');
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//set css
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$('#bounce_scroll_div').css({
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'position':'absolute',
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'width':'1px',
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'height':'1px',
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'overflow':'scroll',
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'z-index':'100',
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//position it via top a bit lower than bottom of the page
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});
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//on page scroll move infiscroll div a bit lower than viewport
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setInterval(function(){
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//set the top to a sinusoidal function that bounces up and down the page amplitude is twice the viewport height and offset is the current scroll position
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$('#bounce_scroll_div').css('top',(Math.sin(new Date().getTime()/250)*$(window).height()*4)+$(document).scrollTop()+$(window).height()+'px');
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},1);
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}); |