SiteMesh - SiteMesh Feature List

Open source software distributed under the OpenSymphony Software License (derived and fully compatible with the Apache Software License).

Non-technical users can now create professional Web pages while effortlessly maintaining a consistent look-and-feel across your web-application.
Dramatically reduces the time needed to develop and maintain a web-application.
Eliminates the need to create multiple web-apps for different audiences by allowing the decorator to be changed according to the useragent or a request parameter(s) (e.g. printable version).

A printable version of your entire site is only a matter of minutes!
Map a decorator based on a cookie value.
With the RobotDecoratorMapper you can apply a special decorator to all your pages when they are indexed by a search engine robot (also known as spider, crawler). Currently supports over 200 robots.

SiteMesh