/*
	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;
var imgs = new Array();
var imgs2 = new Array();

var zInterval = null;
var current=0; //Math.round(Math.random()*6);
var current2=0; //Math.round(Math.random()*6);
var pause=false;

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

	imgs = d.getElementById('rotator').getElementsByTagName('img');
	
	for(i=1;i<imgs.length;i++) 
	{
		imgs[i].xOpacity = 0;
	} 

	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;

	setTimeout(so_xfade,5000); // TIME!
	
	if (document.getElementById('rotatorsmall'))
	{
		imgs2 = d.getElementById('rotatorsmall').getElementsByTagName('img');
		
		for(i=1;i<imgs2.length;i++) 
		{
			imgs2[i].xOpacity = 0;
		} 		
		
		imgs2[0].style.display = 'block';
		imgs2[0].xOpacity = .99;
	
		setTimeout(so_xfadesmall,2000); // TIME!	
	}
	
}

function so_xfade()
{
	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(so_xfade,5000);
	}
	else
	{
		setTimeout(so_xfade,80);
	}

	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) + ')';
	}
}

function so_xfadesmall()
{
	cOpacity2 = imgs2[current2].xOpacity;
	nIndex2 = imgs2[current2+1]?current2+1:0;
	nOpacity2 = imgs2[nIndex2].xOpacity;

	cOpacity2-=.05;
	nOpacity2+=.05;

	imgs2[nIndex2].style.display = 'block';
	imgs2[current2].xOpacity = cOpacity2;
	imgs2[nIndex2].xOpacity = nOpacity2;

	setOpacity(imgs2[current2]);
	setOpacity(imgs2[nIndex2]);

	if(cOpacity2<=0)
	{
		imgs2[current2].style.display = 'none';
		current2 = nIndex2;
		setTimeout(so_xfadesmall,2000);
	}
	else
	{
		setTimeout(so_xfadesmall,80);
	}

	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) + ')';
	}
}