FCK editor for blog edit in admin panel

Hi everybody!

When I try ti edit a blog post from  the admin panel, the input fields appear without the FCKeditor.

How can I make the FCKeditor appear?

Thanks

inc/admin_design.inc.php
in function TopCodeAdmin
after:
<?= $_page['extraCodeInHead']; ?>
add:
<?= $_page['extra_js']; ?>