var imgs = new Array(), aktualni=0;

function fotky_init() {
	
	imgs = document.getElementById("fotky").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	setTimeout("fotky_prechod()",2000);
}

function fotky_prechod() {
	pristi = imgs[aktualni+1]?aktualni+1:0;
	imgs[pristi].style.display = "block";
	imgs[aktualni].xOpacity = imgs[aktualni].xOpacity - 0.01;
	imgs[pristi].xOpacity = imgs[pristi].xOpacity + 0.01;
	setOpacity(imgs[aktualni]); 
	setOpacity(imgs[pristi]);
	if(imgs[aktualni].xOpacity<=0) {
		imgs[aktualni].style.display = "none";
		aktualni = pristi;
		setTimeout("fotky_prechod()",2000);
	} else {
		setTimeout("fotky_prechod()",10);
	}
	return true;
}

function setOpacity(obj) {
	if(obj.xOpacity>.99) {
		obj.xOpacity = .99;
		return;
	}
	obj.style.opacity = obj.xOpacity;
	obj.style.MozOpacity = obj.xOpacity;
	obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
}