/*
	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, slide_imgs = new Array(), zInterval = null, currente=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);

	slide_imgs = d.getElementById('slideshow').getElementsByTagName('img');
	slide_imgs = slide_imgs;
	for(i=1;i<slide_imgs.length;i++) slide_imgs[i].xOpacity = 0;
	slide_imgs[0].style.display = 'block';
	slide_imgs[0].xOpacity = .99;

	setTimeout(so_xfade,3000);
}

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

	cOpacity-=.05;
	nOpacity+=.05;

	slide_imgs[nIndex].style.display = 'block';
	slide_imgs[currente].xOpacity = cOpacity;
	slide_imgs[nIndex].xOpacity = nOpacity;

	setOpacity(slide_imgs[currente]);
	setOpacity(slide_imgs[nIndex]);

	if(cOpacity<=0)
	{
		slide_imgs[currente].style.display = 'none';
		currente = nIndex;
		setTimeout(so_xfade,3000);
	}
	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) + ')';
	}
}