window.addEventListener?window.addEventListener("load",cf_init,false):window.attachEvent("onload",cf_init);

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

function cf_init() {
	if(!d.getElementById || !d.createElement)return;

	imgs = d.getElementById("window").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = 1;
	d.getElementById("window").style.backgroundImage = 'none';
	setTimeout(crossfade,4000);
}

function crossfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;

	nOpacity = imgs[nIndex].xOpacity;

	nOpacity+=.05;
	cOpacity-=.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(crossfade,4000);
	} else {
		setTimeout(crossfade,50);
	}

	function setOpacity(obj) {
		if(obj.xOpacity>=1) {
			obj.xOpacity = 1;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}

}