.... a specific Options...
Hello,
I have a question about Product Options:
I created a Categoy named "Specials"... Then a Product "Als Geschenk versenden"... This Product has a charakteristic named "Grußkarte" with the options "Ja", and "Nein"...
If the Cutomer checkes "Ja" he can writes a Text for a greeting cart in the Textbox... But if he chooses "Nein" the Textbox ( created with custom Fields- item- Textarea ) should dissaper...
"Ja" Textbox Box is shown...
"Nein" Textbox should not be shown
How can I realize that ? 
Thank you, Greets Harald
-- url of the page with the problem -- : shop.gipfelwind.at
-- HikaShop version -- : Business 2.3.2
-- Joomla version -- : 3.3.1