var pageLoaded = 0;
window.addEvent('domready', function() {
	pageLoaded = 1;
});

function switcher(imgSrc){
	if (pageLoaded == 1) {
		if(typeof(automate) != 'undefined') {clearInterval(automate);}
		var oldImg = $('itemImg');
		$('itemImgWrapper').setStyles({
			background: '#fff url("img/img-loading.gif") center no-repeat'
		});
		var newImg = new Image();
		newImg.src = imgSrc;
		automate = setInterval(function(){loadImg(newImg);}, 100);

		function loadImg(img){
			if (img.complete) {
				clearInterval(automate);
				oldImg.set('opacity', 1);
				oldImg.src = img.src;
			} else {
				oldImg.set('opacity', 0.5);		
			}
		}
	}
}