A remote control device which can remotely control drive quantities of apparatuses arranged two-dimensionally and better matches a sense of adjustment of a user with being excellent in usability. In particular, the invention relates to a method of preparing a hydrogel immobilised to a solid support comprising polymerising on the support a mixture of a first comonomer which is acrylamide, methacrylamide, hydroxyethyl methacrylate or N-vinyl pyrrolidinone and a second comonomer which is a functionalised acrylamide or acrylate. The video decoder decodes the current view componentlayer representation. During low engine power conditions, substantially all of the fuel which mixes with clean air flowing through the venturi of the mixing passage flows from the primary passage. A controller operates the optical source and optical sensor at a first rate of energy consumption during a first condition, and operates the optical source and optical sensor at a second rate of energy consumption during a second condition. In one aspect, a system includes a transaction handler to process transactions and a data warehouse to store transaction data recording the transactions, account data identifying at least one account feature of an account, and rules data identifying at least one qualification requirement.