// JavaScript Document
function numeros()
  {
tecla = event.keyCode;
if (tecla >= 48 && tecla <= 57)
    {
    return true;
    }
else
    {
    return false;
    }
  }
  	function abrir() {  
	if(document.getElementById('1').style.display == "none")   
	  {       
	    document.getElementById('1').style.display = "block"; 
		document.getElementById('2').style.display = "none";
		  } 
	 } 
	 function abrir2() {  
	if(document.getElementById('2').style.display == "none")   
	  {       
	    document.getElementById('2').style.display = "block"; 
		document.getElementById('1').style.display = "none";
		  } 
	 } 
$(document).ready(function() {
    $('.slideshow').cycle({
		fx: 'fade'
	});
});