yes i think this was one of the problems.
i have also removed all jsf and those commons jars from my projekt folder.
and i changed the web.xml also.
another question to ajax4jsf.
when i use a4j:poll with reRender="someDataTable" then "someDataTable"
must be a id in an jsf tag?right?or is it possible to write this id in a normal html tag like <div id="someDataTable"..../>
no, it is not possible. reRender can point only to id of the jsf component.
Good news - <a4j:outputPanel layout="block"> is rendered as a