Access to param

[[EMAIL PROTECTED]]

Hello

Can I set a request parameter in the action listener? Thanks for 
Your help.
I tried it with a request attribute, but I think this does not 
work

Urs


<h:commandLink id="Category" action="category" actionListener="#
{overview.categoryActionListener}">
        <h:outputText value="#{category.description}" />
        <f:param id="categoryId" name="id" value="#{category.catId}" />
</h:commandLink>


        <navigation-rule>
                <description>Show category</description>
                <from-view-id>/overview.jsp</from-view-id>
                <navigation-case>
                        <from-outcome>category</from-outcome>
                        <to-view-id>/category.jsp</to-view-id>
                </navigation-case>
        </navigation-rule>