Method and apparatus for dynamically adding functionality to a set of instructions for processing a web document based on information contained in the web document

A computer system comprising of:

• a first mechanism to process a Web document, said first mechanism operable to decode a first statement provided by said Web document, said first statement including a first command, and an instruction provided as an argument to said first command;
• and
• in response to an execution of said first command of said first statement, said first mechanism operable to decode said instruction and issuing said instruction to be executed, wherein execution of said instruction provides new Web document processing functionality to said first mechanism.

A machine implemented method comprising the steps of:

• receiving a Web document, the Web document providing information indicating a new functionality for processing the Web document;
• decoding a set of instructions provided by the Web document, the set of instructions including a set of one or more commands that provide functionality for processing the Web document;
• in response to processing the information provided by the Web document for indicating the new functionality for processing the Web document, altering the set of one or more commands of the set of instructions to include a new command for providing the new functionality to the set of instructions for processing the Web document.