/*****

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 slide=false;
var d=document, imgs = new Array(), zInterval = null, current=0, pause=false,interval=5000;

function showImage(idImage) {
//alert("showImage" + idImage);
	slide=false;
	if(!d.getElementById || !d.createElement)return;
	imgs = d.getElementById("imageContainer").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) {
           obj=imgs[i]
	obj.style.display = "block";
	obj.style.opacity = .0;
	obj.style.opacity = .0;
	obj.style.MozOpacity = .0;
	obj.style.filter = "alpha(opacity=" + (.0*100) + ")";
	   obj.style.display = "none";
	}

	obj=imgs[idImage-1]
	obj.style.display = "block";
	obj.style.opacity = .99;
	obj.style.opacity = .99;
	obj.style.MozOpacity = .99;
	obj.style.filter = "alpha(opacity=" + (.99*100) + ")";
}


function so_init() {
//	if (slide = false) return;
	if(!d.getElementById || !d.createElement)return;
//alert("so_init 3" + interval);	
	/*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 launch_xfade() {
	slide=true;
	for(i=1;i<imgs.length;i++){ 
		imgs[i].xOpacity = 0;
		imgs[i].style.display = "none";
	}
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	so_xfade();
}

function so_xfade() {
	if (slide = false) return;
	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);
	} 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) + ")";
	}
	
}