// fade durations 

var fadeStart = 1000; // hw long to wait until we kick off the fade

var fadeInterval = 50; // how long in milliseconds before we do the next step of the fade

var fadeDisplay = 3000; // how long in milliseconds that we pause on a full image

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;



function so_init() {

	if(!d.getElementById || !d.createElement)return;

	

	css = d.createElement("link");

	css.setAttribute("href","/css/xfade.css");

	css.setAttribute("rel","stylesheet");

	css.setAttribute("type","text/css");

	d.getElementsByTagName("head")[0].appendChild(css);

	

	imgs = d.getElementById("SlideShowImageContainer").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,fadeStart);

}



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,fadeDisplay);

	} else {

		setTimeout(so_xfade,fadeInterval);

	}

	

	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) + ")";

	}

	

}