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,interval=5000;

	function so_init() {
		if(!d.getElementById || !d.createElement)return;
		
		/*css = d.createElement("link");
		css.setAttribute("href","js/xfade2.css");
		css.setAttribute("rel","stylesheet");
		css.setAttribute("type","text/css");
		d.getElementsByTagName("head")[0].appendChild(css);*/
		
		imgs = d.getElementById("imageContainer").getElementsByTagName("img");
		for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
		imgs[0].style.display = "block";
		imgs[0].xOpacity = .99;
		
		setTimeout(so_xfade,interval);
	}

	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,interval);
			
			nIAt = imgs[current].getAttribute('num')-1;
			if(nIAt==0) {
			  nIAt = 3;
			}
				document.getElementById('legenda'+nIAt).style.display = 'none';
				nIAt = nIAt+1;
			if(nIAt==4) {
			  nIAt = 1;
			}
			document.getElementById('legenda'+nIAt).style.display = 'block';
			
		} 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) + ")";
		}
		
	}