if(document.getElementById && document.createElement){
document.write('<style type="text/css">*.toggle{display:none}</style>');
}

function Attiva(id, num){
var ilclicco=document.getElementById(num);
var el=document.getElementById(id);
el.style.display="block";
ilclicco.onclick=function(){
    el.style.display=(el.style.display=="block") ? "none" : "block";
    return(false);
    }
}