/*
	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(), zInterval = null, current=0, pause=false;
var d2=document, imgs2 = new Array(), zInterval2 = null, current2=0, pause2=false;
var d3=document, imgs3 = new Array(), zInterval3 = null, current3=0, pause3=false;
var d4=document, imgs4 = new Array(), zInterval4 = null, current4=0, pause4=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);

	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;

	imgs2 = d.getElementById('rotator2').getElementsByTagName('img');
	for(i=1;i<imgs2.length;i++) imgs2[i].xOpacity = 0;
	imgs2[0].style.display = 'block';
	imgs2[0].xOpacity = .99;

	imgs3 = d.getElementById('rotator3').getElementsByTagName('img');
	for(i=1;i<imgs3.length;i++) imgs3[i].xOpacity = 0;
	imgs3[0].style.display = 'block';
	imgs3[0].xOpacity = .99;

	imgs4 = d.getElementById('rotator4').getElementsByTagName('img');
	for(i=1;i<imgs4.length;i++) imgs4[i].xOpacity = 0;
	imgs4[0].style.display = 'block';
	imgs4[0].xOpacity = .99;

	setTimeout(so_xfade,3000);
	setTimeout(so_xfade2,2500);
	setTimeout(so_xfade3,3300);
	setTimeout(so_xfade4,3800);	
}

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,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) + ')';
	}
}
// funcion ********************************
function so_xfade3()
{
	cOpacity3 = imgs3[current3].xOpacity;
	nIndex3 = imgs3[current3+1]?current3+1:0;
	nOpacity3 = imgs3[nIndex3].xOpacity;

	cOpacity3-=.05;
	nOpacity3+=.05;

	imgs3[nIndex3].style.display = 'block';
	imgs3[current3].xOpacity = cOpacity3;
	imgs3[nIndex3].xOpacity = nOpacity3;

	setOpacity(imgs3[current3]);
	setOpacity(imgs3[nIndex3]);

	if(cOpacity3<=0)
	{
		imgs3[current3].style.display = 'none';
		current3 = nIndex3;
		setTimeout(so_xfade3,3000);
	}
	else
	{
		setTimeout(so_xfade3,50);
	}

	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) + ')';
	}
}


// funcion ********************************
function so_xfade2()
{
	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_xfade2,3000);
	}
	else
	{
		setTimeout(so_xfade2,50);
	}

	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) + ')';
	}
}

// funcion ********************************
function so_xfade4()
{
	cOpacity4 = imgs4[current4].xOpacity;
	nIndex4 = imgs4[current4+1]?current4+1:0;
	nOpacity4 = imgs4[nIndex4].xOpacity;

	cOpacity4-=.05;
	nOpacity4+=.05;

	imgs4[nIndex4].style.display = 'block';
	imgs4[current4].xOpacity = cOpacity4;
	imgs4[nIndex4].xOpacity = nOpacity4;

	setOpacity(imgs4[current4]);
	setOpacity(imgs4[nIndex4]);

	if(cOpacity4<=0)
	{
		imgs4[current4].style.display = 'none';
		current4 = nIndex4;
		setTimeout(so_xfade4,3000);
	}
	else
	{
		setTimeout(so_xfade4,50);
	}

	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) + ')';
	}
}