A system that automatically obtains Web page-specific scripts to save and restore the state of a Web page. During operation, the system receives a request from a user at a database to encryptdecrypt data at the database. The clamp ring includes an annular wall forming a recess for receiving a rotatable tool which presses against the flap portion and the lip to form a bottom seal. The second radiation unit disposed on the first surface of the substrate includes third and fourth radiation portions connected to each other.