Display text field if checkbox is selected for options

Is there a solutions where:
I create a checkbox and asks a users to upgrade to engrave a text (for extra $$$)....
if the user selects the box, I display the textbox and the users types the engraving text


Dependent options extendion
This extensions does everything with a dropdown (Select-type options only). It does NOT work for checkbox
http://www.opencart.com/index.php?route ... on_id=5214

I know I could use a dropdown that say
Engrave ? Yes and NO and then display the textbox
But, that is the last resort.

Anyone have a solutions.

Greatly appreciate the help.

Thanks,
Jason

This would be pretty easy to do with jQuery. Easier still if you wanted to hard code it. I don't know offhand of an extension that does this but I could write it in a couple hours. Inbox me if interested.

hey billynoah, did you ever code this up in the end?

nope..never heard from anyone.