/*
	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
*/
var d=document, simgs = new Array(), zInterval = null, scurrent=0, pause=false;
window.addEventListener?window.addEventListener('load',soo_init,false):window.attachEvent('onload',soo_init);

function soo_init() {
	css = d.createElement('link');
	css.setAttribute('href','typo3conf/ext/sponsorbanner/pi1/slideshow1.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);


    d.getElementById('sponsorrotator').style.height="70px";
    
    d.getElementById('sponsorrotator').style.width="287px";

	simgs = d.getElementById('sponsorrotator').getElementsByTagName('img');
	for(t=1;t<simgs.length;t++) simgs[t].xOpacity = 0;
        try {
	simgs[0].style.display = 'block';
        } catch (e) {}
        try {
	simgs[0].xOpacity = .99;
        } catch (e) {}

        if (simgs.length) {
	setTimeout(soo_xfade,3000);
        }
}

function soo_xfade()
{
	scOpacity = simgs[scurrent].xOpacity;
	snIndex = simgs[scurrent+1]?scurrent+1:0;
	snOpacity = simgs[snIndex].xOpacity;

	scOpacity-=.05;
	snOpacity+=.05;

	simgs[snIndex].style.display = 'block';
	simgs[scurrent].xOpacity = cOpacity;
	simgs[snIndex].xOpacity = nOpacity;

	setOpacity(simgs[scurrent]);
	setOpacity(simgs[snIndex]);

	if(cOpacity<=0)
	{
		simgs[scurrent].style.display = 'none';
		scurrent = snIndex;
		setTimeout(soo_xfade,3000);
	}
	else
	{
		setTimeout(soo_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) + ')';
	}
}