var num=1;

function inizio(){//alert("Inizio a caricare gli script");

//alert("Lancio lo script dell'orologio");
show_clock();

//alert("Rollo i bigbox in home");
rollbox();
setInterval(rollbox,6000);
}

function rollbox(){
try{
document.getElementById("N"+num).style.display="none";
num=(num+1)%myGetDivsByClass("bigbox").length;
document.getElementById("N"+num).style.display="block";
}
catch(e)
{
  num=1;
}
}

function myGetDivsByClass(searchClass) {
 var classElements = new Array();
 var divs = document.getElementsByTagName("div");
 var divsLen = divs.length;
 var i=0;
 var j=0;
 while(i<divsLen){
  if ( divs[i].className==searchClass ){
    classElements[j] = divs[i];
    j++;
    }
  i++;
  }
 return classElements;
 }