/*****

Image Cross Fade Redux
Version 1.0
Last revision: 02.15.2006
steve@slayeroffice.com

Please leave this notice intact. 

Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html


*****/


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, curRunning=false;

function so_init() {
	if(!d.getElementById || !d.createElement)return;
	
	css = d.createElement("link");
	css.setAttribute("href","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;
}


function so_blocking_xfade(imgNr) {
	current = imgNr;
	if(curRunning){
		return;
	}
	curRunning = true;
	so_xfade() 
}

function so_xfade() {
	
  var imgsChanging = false;
	for (i = 0 ; i <imgs.length;i++) {
		if (i == current) {
			if(imgs[i].xOpacity > 1){
				continue;
			}

			imgsChanging = true;
			imgs[i].xOpacity +=.05;
			imgs[i].style.display = "block";
			setOpacity(imgs[i]);
		} else {
			if(imgs[i].xOpacity <= 0){
				continue;
			}
			imgsChanging = true;
			
			if(imgs[i].xOpacity <=.05){
				imgs[i].xOpacity = 0;
			}else {
				imgs[i].xOpacity -=.05;
			}	
			setOpacity(imgs[i]);
			if(imgs[i].xOpacity ==0) {
				imgs[i].style.display = "none";
			} else {
				imgs[i].style.display = "block";
			}
		}
	}
	
	
	
	if (imgsChanging == false) {
		curRunning=false;
	} else {
		setTimeout("so_xfade()",50);
	}
}
	
	function setOpacity(obj) {
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}