Provision of electronic documents from cached portions

摘要

Dynamic and static portions within an electronic document are identified with special tags. Static portions are less frequently updated from the original server than dynamic portions. Static and dynamic portions are cached to a storage area. In one embodiment, both static and dynamic areas are cached to nonvolatile storage. In another embodiment, the static portion is cached to a nonvolatile storage location while the dynamic portion is cached to random access memory. Portions of the document are thus updateable without needing to retrieve the entire electronic document. When the user requests an electronic document, the cache is checked for both static and dynamic portions. Non-stale portions are retrieved from the cache while stale portions are retrieved from the original server. <IMAGE>