/*
	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);

	imgs = d.getElementById('rotator').getElementsByTagName('li');
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = 1;


	//setTimeout(so_xfade,3000);
}

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

	cOpacity-=.1;
	nOpacity+=.1;

	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';
		imgs[current].xOpacity = 0;
		current = nIndex;
		//setTimeout(so_xfade,3000);
	}
	else
	{
		setTimeout(so_xfade,30);
	}

	function setOpacity(obj)
	{
		if(obj.xOpacity>=1)
		{
			obj.xOpacity = 1;
			return;
		}

		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = 'alpha(opacity=' + (obj.xOpacity*100) + ')';
	}
	

}

	function promeni_redosled()
	{	
	var duzina = imgs.length;
//	if(current==0) current = duzina+1;
	
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current-1]?current-1:duzina;
	nOpacity = imgs[nIndex].xOpacity;

	cOpacity-=.1;
	nOpacity+=.1;

	imgs[nIndex].style.display = 'block';
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;

	setOpacity2(imgs[current]);
	setOpacity2(imgs[nIndex]);

	if(cOpacity<=0)
	{
		imgs[current].style.display = 'none';
		imgs[current].xOpacity = 0;
		current = nIndex;
		//setTimeout(so_xfade,3000);
	}
	else
	{
		setTimeout(promeni_redosled,30);
	}

	function setOpacity2(obj)
	{
		if(obj.xOpacity>=1)
		{
			obj.xOpacity = 1;
			return;
		}

		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = 'alpha(opacity=' + (obj.xOpacity*100) + ')';
	}
			
	
	}