https://pametbg.com/templates/pamet/js/load-transition.js

1/**
2 * @version   1.7 April 22, 2014
3 * @author		RocketTheme http://www.rockettheme.com
4 * @copyright 	Copyright (C) 2007 - 2012 RocketTheme, LLC
5 * @license   http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
6 */
7
8((function(){
9
10var animation = function(){
11	var body = document.id('rt-transition');
12
13	if (Browser.Engine.gecko19 || (Browser.Engine.trident && !Browser.Engine.trident7)){
14		if (body){
15			body.set('tween', {duration: 800, transition: 'quad:out'});
16			body.setStyles({'visibility': 'hidden', 'opacity': 0});
17			body.removeClass('rt-hidden').fade('in');
18		}
19		
20		return;
21	}
22	
23	if (body) body.removeClass('rt-hidden').addClass('rt-visible');
24};
25
26window.addEvent('load', animation);
27
28})());