/*
	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(), spans = new Array(), zInterval = null, current=0, pause=false, pom=0;
var fadetime = 2500;
function so_init()
{
	 
	if(!d.getElementById || !d.createElement)return;
	imgs = d.getElementById('ja_header_jsfade').getElementsByTagName('img');
	spans = d.getElementById('tekst-baner').getElementsByTagName('span');
	
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	if(imgs[0]){
		
	   spans[0].style.display = 'block';
	   imgs[0].style.display = 'block';
	   spans[0].xOpacity = .99;
	   imgs[0].xOpacity = .99;
	   
	}
    if(imgs[0]){
		setTimeout(so_xfade,fadetime);
	}
}

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

	cOpacity-=.05;
	nOpacity+=.05;
    
	
	imgs[nIndex].style.display = 'block';
	spans[nIndex].style.display = 'block';
	
	imgs[current].xOpacity = cOpacity;
    spans[current].xOpacity = cOpacity;
    imgs[nIndex].xOpacity = nOpacity;
	spans[nIndex].xOpacity = nOpacity;

	setOpacity(imgs[current]);
	setOpacity(spans[current]);
	setOpacity(imgs[nIndex]);
	setOpacity(spans[nIndex]);

	if(cOpacity<=0)
	{
		imgs[current].style.display = 'none';
		spans[current].style.display = 'none';
		current = nIndex;
		setTimeout(so_xfade,fadetime);
	}
	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) + ')';
	}
}