function checkform ( form )
{
    // ** START **
  if (form.date.value == "") {
    alert( "Please enter today's date." );
    return false ;
  }
  // ** END **
  // ** START **
  if (form.name.value == "") {
    alert( "Please enter your name." );
    return false ;
  }
  // ** END **
  // ** START **
  if (form.email.value == "") {
    alert( "Please enter your email address." );
    return false ;
  }
  // ** END **
  // ** START **
  if (form.phone.value == "") {
    alert( "Please enter your phone number." );
    return false ;
  }
  // ** END **
  return true ;
}