resizable textarea when fck is in popup

well, fckeditor disables text area resizing for a reason. sadly, it disables resizing even if it is opening in a popup and interfere nothing. I wrote this little fix:
replace:
$element['#resizable'] = FALSE;
with:

  	if (!variable_get('fckeditor_popup', '0')) {
	    $element['#resizable'] = FALSE;
	  }