window.onload = function(){
	var insertar = document.getElementById('homeright');
	var img = document.createElement('img');
	var img2 = document.createElement('img');
		var sumres=true
		img.src = 'imagen1.jpg';
		img2.src = 'imagen2.jpg';
		img.style.position ='absolute';
		img2.style.position ='relative';
		function setOpacity(imagenes,level) {
		imagenes.style.opacity = level;
		imagenes.style.MozOpacity = level;
		imagenes.style.KhtmlOpacity = level;
		imagenes.style.filter = "alpha(opacity=" + (level * 100) + ");";}
		insertar.appendChild(img);
		insertar.appendChild(img2);
		var num =100;
		var idContador = 0;
		var vel=5;
		var cont=0;
var x=0;
setInterval(sumar,50)
 function sumar(){
 
			if(sumres==true){
				num=num-vel
				setOpacity(img2,num/100)
				if(num==0){
					   vel=0
					   cont++
					   if(cont==70){
							vel=5
							sumres=false}
					  }
				
			}else{
	num=num+vel
	setOpacity(img2,num/100)
	if(num==100){ vel=0
		      cont--
		      if(cont==0){
				   vel=5
				   sumres=true}}}
}}