function limitText(limitField, limitNum)
{
    if (limitField.value.length >= limitNum)
    {
        limitField.value = limitField.value.substring(0, limitNum);
    }
};

function updateCounter(id, field, limit)
{
  var charmax;

  if(limit == null) charmax = 110;
  else charmax = limit;

  var counterObj = jQuery('#'+id);
  var fieldObj = jQuery('#'+field);
  var chars_left = charmax - fieldObj.val().length;
  counterObj.html(chars_left);
  if (chars_left<=0) 
  {
    counterObj.addClass('error');
  }
  else 
  {
    counterObj.removeClass('error');
  }
  return;
};