/*****

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

*****/

var d=document, imgs1 = new Array(), zInterval = null, current1 = 0, pause=false;

var e=document, imgs2 = new Array(), zInterval = null, current2 = 0, pause=false;

function so_init_1() {
	if(!d.getElementById || !d.createElement)return;
	css = d.createElement("link");
	css.setAttribute("href","../css/base.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);

	imgs1 = d.getElementById("eventFader").getElementsByTagName("img");
	for(i=1;i<imgs1.length;i++) imgs1[i].xOpacity = 0;
	imgs1[0].style.display = "block";
	imgs1[0].xOpacity = .99;
	
	setTimeout(so_xfade1,1000);
}

function so_init_2() {
	if(!e.getElementById || !e.createElement)return;
	css = e.createElement("link");
	css.setAttribute("href","../css/base.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	e.getElementsByTagName("head")[0].appendChild(css);

	imgs2 = e.getElementById("imageContainer_2").getElementsByTagName("img");
	for(i=1;i<imgs2.length;i++) imgs2[i].xOpacity = 0;
	imgs2[0].style.display = "block";
	imgs2[0].xOpacity = .99;
	
	setTimeout(so_xfade2,1000);
}

// crossfades the main image on the left

function so_xfade1() {
	cOpacity = imgs1[current1].xOpacity;
	nIndex = imgs1[current1+1]?current1+1:0;

	nOpacity = imgs1[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs1[nIndex].style.display = "block";
	imgs1[current1].xOpacity = cOpacity;
	imgs1[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs1[current1]); 
	setOpacity(imgs1[nIndex]);
	
	if(cOpacity<=0) {
		imgs1[current1].style.display = "none";
		current1 = nIndex;
		setTimeout(so_xfade1,3000);
	} else {
		setTimeout(so_xfade1,100);
	}
	
	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) + ")";
	}
	
}

// crossfades the smaller image to the right

function so_xfade2() {
	cOpacity = imgs2[current2].xOpacity;
	nIndex = imgs2[current2+1]?current2+1:0;

	nOpacity = imgs2[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs2[nIndex].style.display = "block";
	imgs2[current2].xOpacity = cOpacity;
	imgs2[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs2[current2]); 
	setOpacity(imgs2[nIndex]);
	
	if(cOpacity<=0) {
		imgs2[current2].style.display = "none";
		current2 = nIndex;
		setTimeout(so_xfade2,3500);
	} else {
		setTimeout(so_xfade2,100);
	}
	
	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 fLoad(){
	so_init_1();
}

window.onload=fLoad;