/*****

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

THIS CODE HAS BEEN EDITED BY ANDREU RECASENS andreurm@gmail.com AND NOW SUPPORT 2 IMAGE CONTAINERS, THANKS STEVE

*****/


window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload",so_init);

var d=document, imgs1 = new Array(), imgs2 = new Array(), zInterval = null, current1=0, current2=0, pause=false;

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

	imgs1 = d.getElementById("imageContainer1").getElementsByTagName("img");
	for(i=1;i<imgs1.length;i++) imgs1[i].xOpacity = 0;
	imgs1[0].style.display = "block";
	imgs1[0].xOpacity = .99;
	
	imgs2 = d.getElementById("imageContainer2").getElementsByTagName("img");
	for(i=1;i<imgs2.length;i++) imgs2[i].xOpacity = 0;
	imgs2[0].style.display = "block";
	imgs2[0].xOpacity = .99;
	
	setTimeout(so_xfade1,1000);
	setTimeout(so_xfade2,2000);
}

function so_xfade1() {
	cOpacity1 = imgs1[current1].xOpacity;
	nIndex1 = imgs1[current1+1]?current1+1:0;

	nOpacity1 = imgs1[nIndex1].xOpacity;
	
	cOpacity1-=.05; 
	nOpacity1+=.05;
	
	imgs1[nIndex1].style.display = "block";
	imgs1[current1].xOpacity = cOpacity1;
	imgs1[nIndex1].xOpacity = nOpacity1;
	
	setOpacity(imgs1[current1]); 
	setOpacity(imgs1[nIndex1]);
	
	if(cOpacity1<=0) {
		imgs1[current1].style.display = "none";
		current1 = nIndex1;
		setTimeout(so_xfade1,2000);
	} else {
		setTimeout(so_xfade1,50);
	}
	
	
	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 so_xfade2() {	
	cOpacity2 = imgs2[current2].xOpacity;
	nIndex2 = imgs2[current2+1]?current2+1:0;

	nOpacity2 = imgs2[nIndex2].xOpacity;
	
	cOpacity2-=.05; 
	nOpacity2+=.05;
	
	imgs2[nIndex2].style.display = "block";
	imgs2[current2].xOpacity = cOpacity2;
	imgs2[nIndex2].xOpacity = nOpacity2;
	
	setOpacity(imgs2[current2]); 
	setOpacity(imgs2[nIndex2]);
	
	if(cOpacity2<=0) {
		imgs2[current2].style.display = "none";
		current2 = nIndex2;
		setTimeout(so_xfade2,2000);
	} else {
		setTimeout(so_xfade2,50);
	}
	
	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) + ")";
	}
	
}