// JavaScript Document

/*****

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

*****/

// Edited for dynamic use by Logic IT

try {

imgs = new Array(), current=0
var fadeInterval = 4000;
var fadeSpeed = 35;

function so_init(container,element) {
	if (!element) element="img";
	try {
	if(!document.getElementById || !document.createElement)return;

	imgs = document.getElementById(container).getElementsByTagName(element);
	
	imgs[0].style.display = "block";
	for(i=1;i<imgs.length;i++) { imgs[i].xOpacity = 0; }
	imgs[0].xOpacity = .99;
	
	//so_xfade();
	setTimeout(so_xfade,fadeInterval);
	} catch(err) { alert(err); }
}

function so_xfade() {
	try {
	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,fadeInterval);
	} else {
		setTimeout(so_xfade,fadeSpeed);
	}
	
	} catch(err) { alert(err); }
}

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) + ")";
}

} catch(err) { alert(err); }