Disabling textarea resize on body field

Hi I'm trying to disable resizing on my body field and have tried a few things with no sucess, after reading some of the documentation I can't seem to figure out what I am doing wrong. I have tried two approaches in my node-content_type-edit.tpl first the simple one.
[code]

$form['body_field']['body']['#resizable'] = 0; //(false was not setting the value for some wierd reason but 0 does work)

[/code]
and then the more complicated approach that I found mentioned here http://drupal.org/node/68684#comment-2872584
[code]

		unset ($form['body_field']['body']);
		$form['body_field']['body'] = array(
			'#type' => 'textarea',
			'#title' => check_plain($type->body_label),
			'#default_value' => $node->body,
			'#rows' => 20,
			'#required' => TRUE,
			'#resizable' => FALSE);
		
	

[/code]
Anyone have any ideas on what I need to do or am doing incorrectly?