/*****

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;
var orientation = 1;
var toSlide;

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

	// DON'T FORGET TO GRAB THIS FILE AND PLACE IT ON YOUR SERVER IN THE SAME DIRECTORY AS THE JAVASCRIPT!
	// http://slayeroffice.com/code/imageCrossFade/xfade2.css
	css = d.createElement("link");
	css.setAttribute("href","xfade2.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);

	imgs = d.getElementById("imageContainer").getElementsByTagName("div");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	
	toSlide = setTimeout(so_xfade,8000);
}

function so_xfade(nextIndex)
{
	cOpacity = imgs[current].xOpacity;

	if (typeof nextIndex != "undefined" && nextIndex < 7)
	{
		nIndex = nextIndex;
	}
	else if (orientation == 1)
	{
    	nIndex = imgs[current+1]?current+1:0;
	}
	else if (current-1 >= 0)
	{
    	nIndex = imgs[current-1]?current-1:(imgs.length-1);
	}
	else
	{
    	nIndex = imgs.length-1;
	}

	//eval("document['f" + current + "'].src = f" + current + "1.src;");
	//eval("document['f" + nIndex + "'].src = f" + nIndex + "2.src;");
	//eval("document.getElementById('fader_0" + current + "').src = document.getElementById('fader_0" + current + "').src_n;");
	//eval("document.getElementById('fader_0" + nIndex + "'].src = document.getElementById('fader_0" + nIndex + "'].src_s;");
	eval("document.getElementById('fader_0" + current + "_n').style.display = 'block';");
	eval("document.getElementById('fader_0" + current + "_s').style.display = 'none';");
	eval("document.getElementById('fader_0" + nIndex + "_n').style.display = 'none';");
	eval("document.getElementById('fader_0" + nIndex + "_s').style.display = 'block';");

	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=.10; 
	nOpacity+=.10;
	
	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;
		toSlide = setTimeout(so_xfade,8000);
	} else {
		toSlide = setTimeout(function(){so_xfade(nIndex)},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) + ")";
	}
	
}

function slideBack()
{
  clearTimeout(toSlide);
  orientation = 0;
  so_xfade();
}

function slideFwd()
{
  clearTimeout(toSlide);
  orientation = 1;
  so_xfade();
}

function slideTo(nextIndex)
{
  clearTimeout(toSlide);
  so_xfade(nextIndex);
}