function popup(str) {
  searchWin = window.open(str,'popup','scrollbars=no,resizable=no,width=450,height=400,status=no,location=no,toolbar=no');
}

function popupProdotti(str, w, h, marginw, marginh) {
  if(!w) w=400;
  if(!h) h=450;
  if(!marginw) marginw=0;
  if(!marginh) marginh=0;
  w = w+marginw;
  h = h+marginh;  
  searchWin = window.open(str,'popup','scrollbars=no,resizable=no,width='+w+',height='+h+',status=no,location=no,toolbar=no');
}