19 lines
No EOL
623 B
JavaScript
19 lines
No EOL
623 B
JavaScript
//Get the button
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var mybutton = document.getElementById("myBtn");
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// When the user scrolls down 20px from the top of the document, show the button
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window.onscroll = function() {scrollFunction()};
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function scrollFunction() {
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if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
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mybutton.style.display = "block";
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} else {
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mybutton.style.display = "none";
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}
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}
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// When the user clicks on the button, scroll to the top of the document
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function topFunction() {
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document.body.scrollTop = 0; // For Safari
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document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
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} |