/*
	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;

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);

	elements = d.getElementById('rotator');
	if ( elements != null )
		imgs = elements.getElementsByTagName('img');
	else
		imgs = new Array();
	for(i=1;i<imgs.length;i++) if ( imgs[i] != null ) imgs[i].xOpacity = 0;

	if ( imgs[0] != null )
	{
		imgs[0].style.display = 'block';
		imgs[0].xOpacity = .99;
	}

	setTimeout(so_xfade,3000);
}

function so_xfade()
{
	if ( imgs[current] != null )
	{
		cOpacity = imgs[current].xOpacity;
		nIndex = imgs[current+1]?current+1:0;
		nOpacity = imgs[nIndex].xOpacity;
	
		cOpacity-=.05;
		nOpacity+=.05;
	
		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) + ')';
}