function contest_Validator(theForm)
{

  if (theForm.name_first.value == "")
  {
    alert("Please enter your first name.");
    theForm.name_first.focus();
    return (false);
  }

  if (theForm.name_last.value == "")
  {
    alert("Please enter your Last Name.");
    theForm.name_last.focus();
    return (false);
  }

  if (theForm.email.value == "")
  {
    alert("Please enter your email address.");
    theForm.email.focus();
    return (false);
  }

  if ((theForm.email.value.indexOf('@',0) == -1) || (theForm.email.value.indexOf('.',0) == -1))
  {
    alert("Email address is incorrectly formatted. Please enter again.");
    theForm.email.focus();
    return (false);
  }

  if (theForm.address_zip.value == "")
  {
    alert("Please enter your zip code.");
    theForm.address_zip.focus();
    return (false);
  }

  return (true);
}