function ValidateForm ( form )
{
  // see http://www.thesitewizard.com/archive/validation.shtml
  // for an explanation of this script and how to use it on your
  // own website

  // ** START **
  if (form.full_name.value == "") {
    alert( "Please enter your full name." );
    form.full_name.focus();
    return false ;
  }
    if (form.company.value == "") {
    alert( "Please enter your company info." );
    form.company.focus();
    return false ;
  }
    if (form.email_address.value == "") {
    alert( "Please enter your email address." );
    form.email_address.focus();
    return false ;
  }
  // ** END **
  return true ;
}