The present invention discloses a system and method for delegated page specialization based on a page layer concept. A page consist of a set of layers. Except the first layer each layer represents a delta (container, frames) in its layout to its previous layer introduced on the corresponding level of...http://www.google.co.uk/patents/US7353452?utm_source=gb-gplus-sharePatent US7353452 - System and method for hierarchical layout specialization
