https://www.fdparnonas.gr/wp-content/themes/natural/js/preloader.js?ver=052c11b12674e12545d1f27d2cb99de3

1/*
2 * Krio Image Loader Jquery Plugin v1
3 * http://krio.me/jquery-image-loader-plugin
4 * http://github.com/jquery-image-loader-plugin
5*/
6(function($) {
7	$.fn.krioImageLoader = function(options) {
8    	var opts = $.extend({}, $.fn.krioImageLoader.defaults, options);
9		$(this).css({opacity: 0})
10		opts.onStart.call(this);
11		var imagesToLoad = $(this).find("img")
12									.css({opacity: 0, visibility: "hidden"})
13									.addClass("krioImageLoader");
14		var imagesToLoadCount = imagesToLoad.size();
15		var checkIfLoadedTimer = setInterval(function() {
16			if(!imagesToLoadCount) {
17				clearInterval(checkIfLoadedTimer);
18				return;
19			} else {
20				imagesToLoad.filter(".krioImageLoader").each(function() {
21					if(this.complete) {
22						fadeImageIn(this);
23						imagesToLoadCount--;
24					}
25				});
26			}
27		}, opts.loadedCheckEvery);
28		var fadeImageIn = function(imageToLoad) {
29			$(imageToLoad).css({visibility: "visible"})
30							.animate({opacity: 1}, 
31								opts.imageEnterDelay, 
32								removeKrioImageClass(imageToLoad));
33		};
34		var removeKrioImageClass = function(imageToRemoveClass) {
35			$(imageToRemoveClass).removeClass("krioImageLoader");
36		};
37		$(this).css({opacity: 1})
38	};
39	$.fn.krioImageLoader.defaults = {
40		onStart: function(){},
41		loadedCheckEvery: 350,
42		imageEnterDelay: 500
43	};
44})(jQuery);