/*
	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, divArray = new Array(), zInterval = null, current=0, pause=false;

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

	divArray = d.getElementById('fade').getElementsByTagName('table');
	for(i=1;i<divArray.length;i++) divArray[i].xOpacity = 0;
	divArray[0].style.display = 'block';
	divArray[0].xOpacity = .99;
	
	if(divArray.length > 1)
		setTimeout(so_xfade_svela,3000);
}

function so_xfade_svela()
{
	cOpacity = divArray[current].xOpacity;

	cOpacity-=.05;

	divArray[current].xOpacity = cOpacity;

	setOpacity(divArray[current]);
	
	if(cOpacity<=0)
	{
		divArray[current].style.display = 'none';		
		setTimeout(so_xfade_scopri,1000);
	}
	else
	{
		setTimeout(so_xfade_svela,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) + ')';
	}
}
function so_xfade_scopri()
{
	nIndex = divArray[current+1]?current+1:0;
	nOpacity = divArray[nIndex].xOpacity;
	nOpacity+=.05;

	divArray[nIndex].style.display = 'block';
	divArray[nIndex].xOpacity = nOpacity;

	setOpacity(divArray[nIndex]);
	
	if(nOpacity>.99)
	{
		current = nIndex;
		setTimeout(so_xfade_svela,3000);
	}
	else
	{
		setTimeout(so_xfade_scopri,100);
	}

	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) + ')';
	}
}