/*****

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, ilist;

/* unused
function cr_create(){
	var ielem, ipath="";
	if(!d.getElementById || !d.createElement || !ilist)return;
	for(i=0;i<ilist.length;i++){
		ielem = d.createElement("img");
		ielem.setAttribute("src",ipath+ilist[i]);
		d.getElementById("imagefader").appendChild(ielem);
		}
	so_init();
	}
*/

function so_init() {
	if(!d.getElementById || !d.createElement)return;
	imgs = d.getElementById("imagefader").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	
	// remove bg image
	d.getElementById("imagefader").style.backgroundImage = "none";
	
	// set links to open in new window
	if (document.getElementsByTagName){ 
		var anchors = d.getElementsByTagName("a"); 
		for (var i=0; i<anchors.length; i++) { 
			var anchor = anchors[i]; 
			if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") anchor.target = "_blank"; 
			}
		}

	// begin
	setTimeout(so_xfade,3000);
}

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

	cOpacity-=.04;
	nOpacity+=.04;

	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,3000);
	} 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) + ")";
	}

}