function partsValid()
 {
  if (document.PARTS.FIRSTNAME.value == "")
  {
    alert("Please enter a value for First Name.");
    document.PARTS.FIRSTNAME.focus( );
    return false;
  }
  if (document.PARTS.LASTNAME.value == "")
  {
    alert("Please enter a value for Last Name.");
    document.PARTS.LASTNAME.focus( );
    return false;
  }
  if (document.PARTS.PHONE.value == "")
  {
    alert("Please enter a value for Phone Number.");
    document.PARTS.PHONE.focus( );
    return false;
  }
  if (document.PARTS.EMAIL.value == "")
  {
    alert("Please enter a value for Email Address.");
    document.PARTS.EMAIL.focus( );
    return false;
  }
 }