Patent ID: 8006178
Filing Date: 2011-08-23
Classification: G06F

Abstract:
1. A method comprising: receiving a request for a markup language source document; identifying a manifest document associated with the requested markup language source document; determining to select, from a plurality of overlay documents, at least one overlay document that fulfills an attribute condition specified in the manifest document, wherein the markup language source document specifies one or more overlay document versions with which the markup language source file is compatible, wherein when the markup language source document comprises a section of markup language that specifies that the section is designated as immutable to prevent modification via the at least one overlay document, a directive of immutability is selected from a group comprising: in an event no overlay document is selected, in response to the request, returning the markup language source document; and in an event at least one overlay document is selected: generating a modified markup language source document by applying the at least one overlay document to the requested markup language source document; and in response to the request, returning the modified markup language source document.