imagediv = "slideshow";



var d = document;
var imgOne = null;
var imgs = new Array();
var zInterval = null;
var current = 0;
var pause = false;


window.addEventListener?window.addEventListener('load',imgfade_init,false):window.attachEvent('onload',imgfade_init);


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

	//css = d.createElement('link');
	//css.setAttribute('href','css/cthgroup_homephotos.css');
	//css.setAttribute('rel','stylesheet');
	//css.setAttribute('type','text/css');
	//d.getElementsByTagName('head')[0].appendChild(css);
	
	
	imgs = d.getElementById(imagediv).getElementsByTagName('img');
	
	for(i=0;i<imgs.length;i++) {
		if(i != imgOne){
			imgs[i].xOpacity = 0;
			}
		}

	// random start image
	imgOne = Math.floor(Math.random() * imgs.length);
	current = imgOne ;

	imgs[imgOne].style.display = 'block';
	imgs[imgOne].xOpacity = .99;

	setTimeout(imgfade,3000);
}

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

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

	imgs[nIndex].style.display = 'block';
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;

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

	if(cOpacity<=0)
	{
		imgs[current].style.display = 'none';
		current = nIndex;
		setTimeout(imgfade,3000);
	}
	else
	{
		setTimeout(imgfade,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) + ')';
	}
}