window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload", so_init);
var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;

function so_init() {
	imgs = d.getElementById('fotos').getElementsByTagName('img');
	if (imgs) {
		for (i=1; i < imgs.length; i++) imgs[i].xOpacity = 0;
		imgs[0].style.display = 'block';
		imgs[0].xOpacity = .99;
		setTimeout(so_xfade, 2000);
	}
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);
	
	if (cOpacity<=0) {
		imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(so_xfade,2000);
	} else {
		setTimeout(so_xfade,50);
	}
	
	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) + ")";
	}
}