function checkform(form)
{
  if (form.LNAME.value == "") {
    alert("You must enter an alpha value for Last Name.");
    form.LNAME.focus();
    return false;
  }
  var ChkClassSizeNumFmt = isNaN(form.LNAME.value);
  if (ChkClassSizeNumFmt == false) {
    alert("You must enter an alpha value for Last Name.");
    form.LNAME.focus();
    return false;
  }
  return true;
}