/*
	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(), zInterval = null, current=0, pause=false, flag=true;

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

	css = d.createElement('link');
	css.setAttribute('href','slideshow2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);

	imgs = d.getElementById('rotator').getElementsByTagName('img');
	for(i=1;i<imgs.length;i++)
	{
		imgs[i].xOpacity = 0.7;
		setOpacity(imgs[i]);
	}
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;

	setTimeout(so_xfade,1000);
}

function so_xfade()
{
	cOpacity = imgs[current].xOpacity;

	if(flag)
		cOpacity+=.05;
	else
		cOpacity-=.05;

	imgs[current].xOpacity = cOpacity;
	setOpacity(imgs[current]);

	if(cOpacity<=0)
	{
		imgs[current].style.display = 'none';						
		current = imgs[current+1]?current+1:0;
		flag = true;
		imgs[current].style.display = 'block';
		setTimeout(so_xfade,50);
	}
	else if(cOpacity>=.99){
		flag = false;
		setTimeout(so_xfade,1000);
	}
	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) + ')';
}