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.com.hk/patents/US20050120288?utm_source=gb-gplus-share專利 US20050120288 - System and method for hierarchical layout specialization
