Thanks that worked!
If I would like to have textra area for stable size what should I do?
Does it disturb the program to change following part
<td><textarea name="comment" cols="64" rows="5" onfocus="size_field('<var $formid>',15)" onblur="size_field('<var $formid>',5)"></textarea></td>
to
<td><textarea name="comment" cols="64" rows="5"></textarea></td> ?