// JavaScript Document - fade

/*****

Image Cross Fade Redux
Version 1.0
Last revision: 02.15.2006
steve@slayeroffice.com

Please leave this notice intact. 

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, first=1;

function so_init() {
	if(!d.getElementById || !d.createElement)return;
	//Temp load method
	add_home_images();
	imgs = d.getElementById("imageContainer").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);
}

function add_home_images(){
	for (i=1; i < 12 ; i++)
	{	
		addElement('img', 'imageContainer', 'pic' + i, 'home_image');
		$('pic' + i).src = 'img/home/pic' + i + '.jpg';
		$('pic' + i).xOpacity = 0;
	}
}

function so_xfade() 
{
	if (pause) return;
	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<=.05) 
	{
		imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(so_xfade,5000);
	}
	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) + ")";
}