fck doesn't show on my coded page

I coded my own form in my admin module where I have some textareas. But the page just show drupals regular textareas instead of the fckeditor. The editor is working and I can see and use it on other pages in admin such as add page and site information.

The code I'm using to generate the textareas all looks like this one:
$form['cat']['texta1'] = array(
'#type' => 'textarea',
'#title' => t('The first textarea'),
'#cols' => 5,
'#rows' => 10,
);

Am I missing something or is this a bug?

I've checked and no pages are exluded to show, I have permission to see fck-editor and I am seeing it in other parts of my admin.

/Kristofer