/*****

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_banner,false):window.attachEvent("onload",so_init_banner);

var d=document, imgs_banner = new Array(), zInterval = null, current_banner=0, pause=false;
if(!interval_banner) var interval_banner = 4000;

function so_init_banner() {
	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","css/xfade2.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);

	imgs_banner = d.getElementById("imageContainer_banner").getElementsByTagName("img");
	for(i=1;i<imgs_banner.length;i++) imgs_banner[i].xOpacity = 0;
	imgs_banner[0].style.display = "block";
	imgs_banner[0].xOpacity = .99;
	
	setTimeout(so_xfade_banner,interval_banner);
}

function so_xfade_banner() {
	cOpacity = imgs_banner[current_banner].xOpacity;
	nIndex = imgs_banner[current_banner+1]?current_banner+1:0;

	nOpacity = imgs_banner[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs_banner[nIndex].style.display = "block";
	imgs_banner[current_banner].xOpacity = cOpacity;
	imgs_banner[nIndex].xOpacity = nOpacity;
	
	setOpacity_banner(imgs_banner[current_banner]);
	setOpacity_banner(imgs_banner[nIndex]);
	
	if(cOpacity<=0) {
		imgs_banner[current_banner].style.display = "none";
		current_banner = nIndex;
		setTimeout(so_xfade_banner,interval_banner);
	} else {
		setTimeout(so_xfade_banner,50);
	}
	
	function setOpacity_banner(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) + ")";
	}
	
}