// JavaScript Document

  function over()
  {document.getElementById('foto').src = "images/tv2.jpg"     }
  
  function off()
  {document.getElementById('foto').src = "images/tv.jpg"     }
  
  
  
  function start()
   
   {document.getElementById('container').className ='on'; 
    document.getElementById('desero').className ='on';
   }