/*
	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(), text = new Array(), zInterval = null, current=0, pause=false, xInterval = 1;

function getElementsByClassName(classname, node) {

	if(!node) node = document.getElementsByTagName("div")[0];

	var a = [];

	var re = new RegExp('\\b' + classname + '\\b');

	var els = node.getElementsByTagName("*");

	for(var i=0,j=els.length; i<j; i++)

	if(re.test(els[i].className))a.push(els[i]);

	return a;

}

function so_init()
{
	if(!d.getElementById || !d.createElement)return;

	css = d.createElement('link');
	css.setAttribute('href','css/screen.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);

	//imgs = d.getElementById('rotator').getElementsByTagName('inFocus');
	imgs = getElementsByClassName('inFocus', '')

	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;

	setTimeout(so_xfade,20000);
}

function doPause()  {
	if(pause) {
		pause = false;
	} else {
		pause = true;
	}	
}


function so_xfade(itemNum)
{
	if(pause)return;

	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	
	if (itemNum == 'inFocusAngel')
	{
	//doPause();
	nIndex=0;
	itemNum="";
	cOpacity-=.99;
	nOpacity+=.99;

	imgs[nIndex].style.display = 'block';
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	setOpacity(imgs[current]);
	setOpacity(imgs[nIndex]);
	
	}
	else{
	cOpacity-=.99;
	nOpacity+=.99;

	imgs[nIndex].style.display = 'block';

	imgs[current].xOpacity = cOpacity;

	imgs[nIndex].xOpacity = nOpacity;

	setOpacity(imgs[current]);

	setOpacity(imgs[nIndex]);
	}

	


	if(cOpacity<=50)
	{
		imgs[current].style.display = 'none';
		current = nIndex;
		setTimeout(so_xfade,20000);
	}
	else
	{
		setTimeout(so_xfade,0);
	}

	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) + ')';
	}
}