/*****

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

@modificado por: Alvaro Touzón
@empresa: Atalantida
@fecha: 18/12/2006
@las imagenes vienen de la base de datos y solo deben rotr cuando haya mas de una
@ esas son las modificaciones principales , ademas de del tiempo de rotacion que tb viene de la base de datos.
lngIMG:imgs.length
*****/



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

var d=document,  zInterval = null, current=0, pause=false;var longIMG=imgs.length;


function so_init() {
	if(!d.getElementById || !d.createElement)return;
	css = d.createElement("link");
	css.setAttribute("href","fade.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);
	imgs = d.getElementById("imageContainer").getElementsByTagName("img");
	
	if(longIMG==1){
		imgs[0].style.display = "block";
		imgs[0].xOpacity =100;
	}else if(longIMG>1){
		for(i=1;i<imgs.length;i++){
			imgs[i].xOpacity = 0;
		}
		imgs[0].style.display = "block";
		imgs[0].xOpacity = .99;
		tiempoP=Number(tiempo[0])*1000;
		setTimeout(so_xfade,tiempoP);
		
	}
}

function so_xfade() {
	//alert(tiempoP);
	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;
		//alert(0);
		tiempoP=Number(tiempo[current])*1000;
		setTimeout(so_xfade,tiempoP);
	} 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) + ")";
	}
	
	
}