lua/xml hide() help plz

[herka]

well either im blind or really dont know what wrong.

xml:

<Scripts>
<OnClick>bq_hide();</OnClick>
</Scripts>

lua:

function bq_hide()
    bqbForm:Hide();
end

frame name is bqbForm just for the record.
Every time i press the button witch calles bq_hide() i get:

 [string "bqbForm:OnHide"]:1: attempt to index global 'this' (a nil value)

and i really cant find where did i go wrong or is it a new change since the patch.

tnx

herka