[PHP] PHP and JavaScript

[skitum]

Hi all,

The following code will drive me mad coz it always shows the JavaScript functions and 
I'd like know why:

<?
if(isset($validar))
{
 
 $clinom=strlen($clinombre);
 $clinif=strlen($clinifcif);
 $clidir=strlen($clidireccion);
 $cliloc=strlen($clilocalidad);
 $clipro=strlen($cliprovincia);
 $clipai=strlen($clipais);
 $clicod=strlen($clicodpostal);
 $clicon=strlen($clicontacto);
 $clitel=strlen($clitelefono);
 $cliema=strlen($cliemail);
 $clicc1=strlen($ccc1);
 $clicc2=strlen($ccc2);
 $clicc3=strlen($ccc3);
 $clicc4=strlen($ccc4);
 
     if(($clinom < 5) || ($clinif < 8) || ($clidir < 5) || ($cliloc < 3) || ($clipro < 
5) || ($clipai < 5) || ($clicod < 5) || ($clicon < 5) || ($clitel < 9) || ($cliema < 
5) || ($clicc1 < 4) || ($clicc2 < 4) || ($clicc3 < 3) || ($clicc4 < 10))
     {
     ?><script type="text/javascript">
      error_alert();
      goHistoryBack();
     </script><?
     }
     else
     {
     ok();
     }
}
?>

Thanks in advance

Peace & Love
skitum