/*****

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;

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

	//imgs = d.getElementById("imageContainer").getElementsByTagName("img");
	imgs = d.getElementById("small_banner").getElementsByTagName("img");
	
	// modify to work with one image only
	if (imgs.length > 1) {
		for(i=1;i<imgs.length;i++) {
			imgs[i].style.display = "none";
			imgs[i].xOpacity = 0;
			setOpacity(imgs[i]);
		}
		//imgs[0].style.display = "block";
		imgs[0].xOpacity = .99;
		//d.getElementById("small_banner_overlay").firstChild.href = imgs[0].longDesc;
		setOpacity(imgs[0]);
		setTimeout(so_xfade,2000);
	} else {
	}
	
}

function so_xfade() {
	if (imgs.length > 1) {
		cOpacity = imgs[current].xOpacity;
		nIndex = imgs[current+1]?current+1:0;
		
		nOpacity = imgs[nIndex].xOpacity;
		
		nOpacity+=.075;
		cOpacity-=.025; 
		
		//d.getElementById("small_banner_overlay").firstChild.href = imgs[nIndex].longDesc;
		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,4000);
		} 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) + ")";
}