// JavaScript Document
var id="headfoto";
var imgArray=new Array("image/2nd/2ndheadfoto_01.jpg","image/2nd/2ndheadfoto_02.jpg","image/2nd/2ndheadfoto_03.jpg",
"image/2nd/2ndheadfoto_04.jpg","image/2nd/2ndheadfoto_05.jpg","image/2nd/2ndheadfoto_06.jpg", "image/2nd/2ndheadfoto_07.jpg",
"image/2nd/2ndheadfoto_08.jpg");

// da qui in poi non sono necessarie modifiche

if(document.getElementById) MakeHeader();

function MakeHeader(){
var el=document.getElementById(id);
if(el) el.style.background="url("+RandomImage()+")";
else setTimeout("MakeHeader()",100);
}

function RandomImage(){
return(imgArray[Math.round(Math.random()*(imgArray.length-1))]);
}


function showMenu(menu) {
    if (document.getElementById) {
        thisMenu = document.getElementById(menu).style;
        if (thisMenu.display == "block") {
            thisMenu.display = "none";
         } else {
             thisMenu.display = "block";
        }
        return false;
    } else {
        return true;
    }
}