hvis ja, videre til næste

koden er en form hvor du indtaster et svar på et spørgsmål!

jeg ville gerne have at hvis det er $right at man så auto bliver ført til næste spørgsmål, altså id 2 osv osv...




$right="You got it right!";
$wrong="You got it wrong, Go back and try again";
if(isset($_POST['submit']))
{
  $answer=$_POST['answer'];
  $ID=$_POST['ID'];
  $answer=strtoupper($answer);
  $getanswer="SELECT * from rd_riddles where riddleid='$ID'";
  $getanswer2=mysql_query($getanswer) or die(mysql_error());
  $getanswer3=mysql_fetch_array($getanswer2);
  if($answer==$getanswer3[answer])
  {
    print "$right<br>";
  }
  else
  {
    print "$wrong<br>";
  }

}
else
{
  $day=date("U");
  $seedval=$day%100000;
  srand($seedval);
  $selectriddle="SELECT * from rd_riddles order by riddleid limit 1";
  $selectriddle2=mysql_query($selectriddle) or die(mysql_error());
  $selectriddle3=mysql_fetch_array($selectriddle2);
  print "<form action='index.php' method='post'>";
  print "<input type='hidden' name='ID' value='$selectriddle3[riddleid]'>";
  print "$selectriddle3[question]<br>";
  print "Answer:<br>";
  print "<input type='text' name='answer' size='30'><br>";
  print "<input type='submit' name='submit' value='submit answer'></form>";
}