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

	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(),lnks = new Array(), zInterval = null, current=0, _next = 0, pause=false, rotator = null, timer = 5000, cycle = true;

function so_init()
{
	if(!d.getElementById || !d.createElement)return;
	rotator = d.getElementById('rotator');
	if (rotator) {
	imgs = rotator.getElementsByTagName('img');
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	//imgs[0].style.display = 'block';
	imgs[0].style.visibility = 'visible';
	imgs[0].xOpacity = .99;

	
	rotator.className = rotator.className.replace("loader", "");
	if (rotator.className.indexOf("static") != -1)
	{
		cycle = false;
		uls = d.getElementsByTagName("ul");
		for (i = 0; i < uls.length; i++)
		{
			if (uls[i].className == "icons")
			{
				ls = uls[i].getElementsByTagName("a");
				for (k = 0; k < ls.length; k++)
				{
					ls[k]._index = lnks.length;
					if(ls[k]._index == "0")
					{
						ls[k].parentNode.className += " active";
					}
					lnks.push(ls[k]);
					
					ls[k].onclick = function() {
						_next = this._index;
						for(i = 0; i < lnks.length; i++)
						{
							lnks[i].parentNode.className = lnks[i].parentNode.className.replace("active", "");
						}
						this.parentNode.className += " active";
						so_xfade();
						return false;
					}
				}
			}
		}
	}
	else
	{
		setTimeout(so_xfade,timer);
	}
	}
}

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

	cOpacity-=.05;
	nOpacity+=.05;

	//imgs[nIndex].style.display = 'block';
	imgs[nIndex].style.visibility = 'visible';
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;

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

	if(cOpacity<=0)
	{
		imgs[current].style.visibility = 'hidden';
		current = nIndex;
		if (cycle) {
			setTimeout(so_xfade,timer);
		}
	}
	else
	{
		setTimeout(so_xfade,5);
	}

	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) + ')';
	}
}