speed=30000

function getRandom(max)
{
 return Math.floor((max) * Math.random())+1;
}

function initArray() 
{
 this.length = initArray.arguments.length;
 for (var i = 0; i < this.length; i++)
   this[i+1]= initArray.arguments[i];
 return this
}

var numero3=getRandom(100);

var link=new initArray
(
'<iframe src="/script/bannerclick.htm" height="60" width="468" marginwidth="0" marginheight="0" vspace="0" hspace="0" frameborder="0" align="middle" scrolling="no"></iframe>',
'<a href="http://www.top100italia.com/vota.php3?login=musica" target="_blank"><img src="/immagini/top100italiabanner.gif" border="0"></a>',
'<A HREF="http://adv.bbanner.it/cgi/bbt.cgi?11769" target="_top"><IMG SRC="http://adv.bbanner.it/cgi/bbv.cgi?11769" WIDTH=468 HEIGHT=60 BORDER=1></A>'
//'<iframe src="/script/reteclick.htm" height="60" width="468" marginwidth="0" marginheight="0" vspace="0" hspace="0" frameborder="0" align="middle" scrolling="no"></iframe>'
)

var numero=getRandom(link.length);


function succ(number)
{
 if (numero==link.length)
   number=1;
 else
   number++;
 return number
}

document.write('<span id="sponsoralternato" align="center" style="position:relative;width:100%; height:60; left: 0; top: 0;"><div id="sponsor1" align="center" style="position:absolute; width:100%; height:100%; z-index:1; left: 0; top: 0; visibility: visible;">'+ link[numero] +'</div><div id="sponsor2" align="center" style="position:absolute; width:100%; height:100%; z-index:2; left: 0; top: 0; visibility: hidden;">'+ link[succ(numero)] +'</div></span>')
function cambia()
{
 if (document.all)
  {
   numero=succ(numero);
   if (sponsor2.style.visibility=="hidden")
    {
     sponsor1.style.visibility="hidden";
     sponsor2.style.visibility="visible";
     sponsor1.innerHTML=link[succ(numero)];
    }
  else
    {
     sponsor1.style.visibility="visible";
     sponsor2.style.visibility="hidden";
     sponsor2.innerHTML=link[succ(numero)];
    }
   window.setTimeout("cambia()", speed);
  }
}
cambia()