struts documentation

[Olasoji Ajayi]

where can i get do download struts doumentation that is as good as or even 
better than the one that comes with struts but is in pdf chm or anyformat that 
i can read offline and i dont need to startup a servelet container like i need 
to do for the documentation that comes with struts, i also need to know where i 
can download good documetation on all the classes that comes with the struts 
package (e.g. the commons package)