var imagenesh = ["Images/banner1.jpg", "Images/banner2.jpg", "Images/banner3.jpg", "Images/banner4.jpg", "Images/banner5.jpg", "Images/banner6.jpg", "Images/banner7.jpg", "Images/banner8.jpg", "Images/banner9.jpg"];
  var imagenesf = ["Images/footer.jpg", "Images/footer2.jpg"];
  
  function imagenhIni() {
    document.images.inih.src = imagenesh[Math.floor(Math.random() * imagenesh.length)];
  }
  
  function imagenfIni() {
    document.images.inif.src = imagenesf[Math.floor(Math.random() * imagenesf.length)];
  }
  
  function cambiar(esto)
  {
	vista=document.getElementById(esto).style.display;
	if (vista=='none')
		vista='block';
	else
		vista='none';

	document.getElementById(esto).style.display = vista;
  }