/*****

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, nIndex = 0; pause=false; timeout = 7000;

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

	imgs = d.getElementById("fader").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	
	setTimeout("next(0)",timeout);
}

function next(ps){
	nIndex = nIndex + 1;
	if(nIndex > parseInt(imgs.length)-1){
		nIndex = 0;
	}
	if(ps == 1){
		pause = true;
	}
	so_xfade();
}
function last(ps){
	nIndex = nIndex - 1;
	if(nIndex  < 0){
		nIndex = parseInt(imgs.length)-1;
	}
	if(ps == 1){
		pause = true;
	}
	so_xfade();
}

function so_xfade() {
//	nIndex = imgs[current+1]?current+1:0;

	cOpacity = imgs[current].xOpacity;
	nOpacity = imgs[nIndex].xOpacity;

	cOpacity = cOpacity-0.05;
	nOpacity = nOpacity+0.05;

	setOpacity(imgs[current]);
	setOpacity(imgs[nIndex]);

	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity 	= 	cOpacity;
	imgs[nIndex].xOpacity 	= 	nOpacity;

	if(cOpacity <= 0){
		imgs[current].style.display 	= 	"none";
		current = nIndex;
		if(pause == false){
			setTimeout("next(0)",timeout);
		}
		else {
			return true;
		}
	}
	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) + ")";
}