insert signature graphic into container field

[T Howard]

I am trying to write a script that will insert a scanned signature graphic into a container field once a user selects the container field. I need it to ask "Do you approve? Y or N" and then if the answer is Y then insert graphic. If N end script. I am using a user table that is related to account name which is required to login to the database. The user table has Account Name, Title and Scanned Signature fields. Please help.