// JavaScript Document
var d=document, imgs = new Array(), zInterval = null, current=0, transition = null, transitionDelay = 4000;

function so_init() {
	if(!d.getElementById || !d.createElement) return;
	imgs = d.getElementById("box-slideshow").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, 500);
}

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) + ")";
	}

function so_xfade() {
		cOpacity = imgs[current].xOpacity;
		if(imgs[current+1]) nIndex = current+1;
		else nIndex = 0;
	
		nOpacity = imgs[nIndex].xOpacity;
		
		cOpacity-=.10;
		nOpacity=.99;
		
		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;
			if(transitionDelay != maxDelay) transition = setTimeout(so_xfade, transitionDelay);
		} else {
			setTimeout(so_xfade,50);
		}
}