var errorBorder = "1px solid #a81d21";

function setBorder(id, borderStyle) {
  document.getElementById(id).style.border = borderStyle;
}

function isBlank(fieldVal, name, desc) {
  if (fieldVal=="") {
    setBorder(name, errorBorder);
    return "<li>" + desc + "</li>";
  }
  else {
    setBorder(name, "");
    return "";
  }
}