// JavaScript Document
function changeURL(winName, newURL) {
  fondo = window.open("", winName);
  fondo.location.href = newURL;
}
function swapPage() { 
theImages = new Array("site/"); 
whichImage = Math.floor(Math.random()*theImages.length);
page=theImages[whichImage]
//document.write(page)
changeURL('_self', page);
}