function rotateIt(){
 if (halt!=1){
  sctr++;
  if (sctr>number_of_sponsors-1){
   sctr=0;
   }
  document.banche.src=isn[sctr].src;
  if (document.getElementById("link_banche") != null)
	document.getElementById("link_banche").href=urllink[sctr];
  setTimeout("rotateIt()",tempo);
  }
 }

function doIt(){
 halt=1;
 location.href=durl[sctr];
 }