function roundPrice(APrice) {
  if (APrice==0) return '0,00';
  
  var cent = APrice * 100;
  cent = Math.round(cent);
  
  var sc  = cent.toString();
  var len = sc.length;
  var e   = sc.substring(0, len - 2);
  var c   = sc.substring(len - 2, len);
  if (!e) e = 0;
  
  return (e + ',<span class="cents">' + c + '</span>');
}

function roundPrice2(APrice) {
  if (APrice==0) return '0,00';
  
  var cent = APrice * 100;
  cent = Math.round(cent);
  
  var sc  = cent.toString();
  var len = sc.length;
  var e   = sc.substring(0, len - 2);
  var c   = sc.substring(len - 2, len);
  if (!e) e = 0;
  
  return (e + ',' + c);
}

function getChecked(obj) {
  var n=obj.length;
  var i=0;
  var j=-1;
  
  while ((i<n) && (j<0)) {
    if (obj[i].checked) 
      j=i;
    else
      i++;  
  }

  return j;
}