<?xml version='1.0' encoding='UTF-8'?>
<section>
    <para> The <emphasis role="bold">
        <property>&lt;a4j:ajaxListener&gt;</property>
      </emphasis> component is the same one as <emphasis role="bold">
        <property>&lt;f:action&gt;</property>
      </emphasis> or <emphasis role="bold">
        <property>&lt;f:value&gt;</property>
      </emphasis> components but it is used for an Ajax container. 
</para>
</section>