/*****

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;
var t;

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

	imgs = d.getElementById("imageContainer").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) {
		imgs[i].xOpacity = 0;
		if (TamVentana()<=1200) {
			imgs[i].width=(500*TamVentana())/(1345+(TamVentana()/1.2));
		}
	}
	if (imgs.length>=1) {
		imgs[0].style.display = "block";
		imgs[0].xOpacity = .99;
		t=setTimeout(so_xfade,15000);
	} else {
	}
}

function so_xfade2() {

	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;

	clearTimeout(t);
	while (cOpacity>0) {
		cOpacity-=.001; 
		nOpacity+=.001;
		imgs[nIndex].style.display = "block";
		imgs[current].xOpacity = cOpacity;
		imgs[nIndex].xOpacity = nOpacity;
		setOpacity(imgs[current]); 
		setOpacity(imgs[nIndex]);
	}
	t=setTimeout(so_xfade2,8000);
	
}

function so_xfade() {
	clearTimeout(t);
	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;
		t=setTimeout(so_xfade,8000);
	} else {
		t=setTimeout(so_xfade,5);
	}
	
}

function os_xfade() {
	clearTimeout(t);
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current-1]?current-1:imgs.length-1;

	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;
		t=setTimeout(so_xfade,8000);
	} else {
		t=setTimeout(os_xfade,5);
	}
	
}

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 TamVentana() {   
	var Tamanyo = [0, 0];   
	if (typeof window.innerWidth != 'undefined') {   
		Tamanyo = [   
			window.innerWidth,   
			window.innerHeight   
		];   
	} else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0) {   
		Tamanyo = [   
			document.documentElement.clientWidth,   
			document.documentElement.clientHeight   
		];   
	} else {   
		Tamanyo = [   
			document.getElementsByTagName('body')[0].clientWidth,   
			document.getElementsByTagName('body')[0].clientHeight   
		];   
	}   
	return Tamanyo[0];   
}

function sigImagen() {
	return true;
}