/*
	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, mytxt= new Array(), imgs= new Array(), zInterval = null, current=0, pause=false;
var  duration=2500, deltat=100;
function so_init()
{
	if(!d.getElementById || !d.createElement)return;

	css = d.createElement('link');
	css.setAttribute('href','css/slideshowtesto2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);
	imgs = d.getElementById('rotator').getElementsByTagName('img');
    mytxt= d.getElementById('rotator').getElementsByTagName('b');
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	for(i=1;i<mytxt.length;i++) mytxt[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	mytxt[0].style.display = 'block';
	imgs[0].xOpacity = .99;
	mytxt[0].xOpacity = .99;
	setTimeout(so_xfade,duration);
}

function so_xfade()
{
	cOpacity = imgs[current].xOpacity;
	cTpacity = mytxt[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	nTpacity = mytxt[nIndex].xOpacity;

	cOpacity-=.04;
	nOpacity+=.04;
	cTpacity-=.08;
	if(cTpacity<=0)
	{	cTpacity=0;
		nTpacity+=.05;
	}
	imgs[nIndex].style.display = 'block';
	mytxt[nIndex].style.display = 'block';
	imgs[current].xOpacity = cOpacity;
	mytxt[current].xOpacity = cTpacity;
	imgs[nIndex].xOpacity = nOpacity;
	mytxt[nIndex].xOpacity = nTpacity;
	setOpacity(imgs[current]);
	setOpacity(mytxt[current]);
	setOpacity(imgs[nIndex]);
	setOpacity(mytxt[nIndex]);

	if(cOpacity<=0)
	{
		imgs[current].style.display = 'none';
		mytxt[current].style.display = 'none';
		current = nIndex;
		setTimeout(so_xfade,duration);
	}
	else
	{
		setTimeout(so_xfade,deltat);
	}

	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) + ')';
	}
}