/*****

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, pause=false;

var current = [0,0];

function so_init()
{
	if(!d.getElementById || !d.createElement)return;
	
	css = d.createElement("link");
	css.setAttribute("href","../xfade/xfade2.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);
	
	so_imageContainer("imageContainer0", 0, so_xfade0, 5000);
//	so_imageContainer("imageContainer1", 1, so_xfade1, 5000);
}

function so_imageContainer(el, num, func, start_delay)
{
	imgs[num] = d.getElementById(el).getElementsByTagName("img");
	for(i=1;i<imgs[num].length;i++)
	{
		imgs[num][i].style.display = "none";
		imgs[num][i].xOpacity = 0;
	}	
	imgs[num][0].style.display = "block";
	imgs[num][0].xOpacity = .99;

	setTimeout(func, start_delay);
}

function so_xfade(num, func)
{
	var cur = current[num];
	cOpacity = imgs[num][cur].xOpacity;
	nIndex = imgs[num][cur+1]?cur+1:0;
	nOpacity = imgs[num][nIndex].xOpacity;
	
	cOpacity-=.01; 
	nOpacity+=.01;
	
	imgs[num][nIndex].style.display = "block";
	imgs[num][cur].xOpacity = cOpacity;
	imgs[num][nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[num][cur]); 
	setOpacity(imgs[num][nIndex]);

	if(cOpacity<=0) {
		imgs[num][cur].style.display = "none";
		current[num] = nIndex;
		setTimeout(func,3000);

		var link = d.getElementById("imageLink" + num);
		link.href = ar_imgs[num][cur].href;
	} else {
		setTimeout(func,25);
	}
}

function so_xfade0()
{
	so_xfade(0, so_xfade0);
}

function so_xfade1()
{
	so_xfade(1, so_xfade1);
}

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) + ")";
}