/*
	Image Cross Fade Redux
	Version 1.0
	Last revision: 02.15.2006
	steve@slayeroffice.com
*/

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;
	imgs = d.getElementById('banner').getElementsByTagName('img');
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;
	setTimeout(so_xfadeOut,5000);
}

function so_xfadeOut()
{
	var cOpacity=0;

	cOpacity = imgs[current].xOpacity;
	cOpacity-=.05;
	imgs[current].xOpacity = cOpacity;
	setOpacity(imgs[current]);
	if(cOpacity<=0)
	{
		imgs[current].style.display = 'none';
		setTimeout(so_xfadeIn,0);
	}
	else
	{
		setTimeout(so_xfadeOut,50);
	}
}

function so_xfadeIn()
{
	var nOpacity=0, nIndex=0;

	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	nOpacity+=.05;
	imgs[nIndex].style.display = 'block';
	imgs[nIndex].xOpacity = nOpacity;
	setOpacity(imgs[nIndex]);
	if(nOpacity>=.99)
	{
		current = nIndex;
		setTimeout(so_xfadeOut,5000);
	}
	else
	{
		setTimeout(so_xfadeIn,50);
	}
}

function setOpacity(obj)
{
        if(obj.xOpacity>.99)
	{
		obj.xOpacity = .99;
		return;
	}
	if(obj.xOpacity<0)
	{
		obj.xOpacity = 0;
		return;
	}
	obj.style.opacity = obj.xOpacity;
        obj.style.MozOpacity = obj.xOpacity;
	obj.style.filter = 'alpha(opacity=' + (obj.xOpacity*100) + ')';
}