MediaWiki:Gadget-goToTop.js

/* [[Category:Wikipedia scripts]]
This script was created by Majr of the Minecraft Wiki.
The original script is available here:
http://minecraftwiki.net/wiki/User:Majr/goToTop.js/ */
$(function(){
'use strict';

$('body').append('<span id="to-top">▲ Lên đầu trang</span>');
var $topButton = $('#to-top');

$topButton.css({
	'color': '#000',
	'position': 'fixed',
	'bottom': '-30px',
	'left': '4px',
	'cursor': 'pointer',
	'transition': 'bottom 0.5s',
	'-webkit-transition': 'bottom 0.5s',
	'user-select': 'none',
	'-webkit-user-select': 'none',
	'-moz-user-select': 'none',
	'-ms-user-select': 'none',
	'z-index': 1
}).click(function(){
	$('html, body').animate({scrollTop: 0},'slow');
});

$(window).scroll(function(){
	if ($(window).scrollTop() > 100 ) {
		$topButton.css('bottom', '4px');
	}else{
		$topButton.css('bottom', '-30px');
	}
});
});