/*
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();
current=0;

zInterval = null;
pause=false;

var tempo = 800;

var fade1 = tempo*2;
var fade2 = tempo*4;

function so_init()
{
	if(!d.getElementById || !d.createElement)return;
	css = d.createElement('link');
	css.setAttribute('href','./css/slideshow2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);
	
	imgs = d.getElementById('slideshow').getElementsByTagName('img');
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;
	//setTimeout(so_xfade,fade1);
	setTimeout(function(){my_so_xfade(imgs, current)},fade1);
	
	var imgs2 = new Array();
	current2 = 0;
	imgs2 = d.getElementById('slideshow2').getElementsByTagName('img');
	for(i=1;i<imgs2.length;i++) imgs2[i].xOpacity = 0;
	imgs2[0].style.display = 'block';
	imgs2[0].xOpacity = .99;
	//setTimeout(so_xfade,fade1);
	setTimeout(function(){my_so_xfade(imgs2, current2)},fade2);
	/*
	for(var r=2; r<16; r++)
	{
		eval("var imgs"+r+" = new Array(), current"+r+" = 0;");
		eval("imgs"+r+" = d.getElementById('slideshow"+r+"').getElementsByTagName('img');");
		eval("for(i=1;i<imgs"+r+".length;i++) imgs"+r+"[i].xOpacity = 0;");
		eval("imgs"+r+"[0].style.display = 'block';");
		eval("imgs"+r+"[0].xOpacity = .99;");
		eval("setTimeout(function(){my_so_xfade(imgs"+r+", current"+r+")},fade"+r+");");
	}
	*/
}

	
function my_so_xfade(imgs, current)
{
	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(my_so_xfade,5000);
		setTimeout(function(){my_so_xfade(imgs, current)},5000);
	}
	else
	{
		//setTimeout(my_so_xfade,50);
		setTimeout(function(){my_so_xfade(imgs, current)},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) + ')';
	}
}