var f = document.forms["loginform"];

function proc_login( button )
{
 var form = button.form, pass;

 if ( form.FLogin.value == "" || form.Pass.value == "" ) {
    alert( "Ââåäèòå ëîãèí è ïàðîëü" );
    return false;
 }
 form.FPaswd.value = hex_md5( form.Seed.value + hex_md5( form.Pass.value ) );
 form.Pass.value = "";
 form.Seed.value = "";

 return true;
}

f.FSubmitLogin.disabled = false;