pb en javascript

<script type="text/javascript">

function check(){



    bton(true);



    if(document.forms['log'].login.value == ''){

        alert('Indiquez votre nom, SVP.');

        bton(false);

        return false;

    }

    

    if(document.forms['log'].pass.value == ''){

        alert('Indiquez votre mot de passe, SVP.');

        bton(false);

        return false;

    }

    



    return true;

}



function bton(t) {

    document.log.bouton.disabled=t; document.log.bouton.value= (t) ? 'Patientez...' : 'connexion' ;

}

</script>





<form name="log" id="log" action="index.php?page=log&action=login" method="post" onsubmit="return check()">



<p>Login: 

<input type="text" name="login" id="login" size="15" maxlength="20" /></p>



<p>Pass: 

<input type="password" name="pass" id="pass" size="15" maxlength="10" /></p>



</p><input type="button" name="bouton" id="bouton" value="Connexion"/></p>



</form>



</div>