"action" can used when target other page,so it navigate itself.why???

[马东生]

users:
hello!
i use tomcat5.5 and myfaces1.1 .one web page use FRAME,
<h:commandLink  immediate="true"
                   
                        actionListener="#{t.setNodeSelected}" 
                        action="#{treeBaker.clickNode}"  
                        target="other"
                        >
                    <t:graphicImage value="/console/res/document.png" 
border="0"/>
                    <h:outputText value="#{node.description}"/>
                    <f:param name="docNum" value="#{node.identifier}"/>
                </h:commandLink>
   //other is another pate.

"action" can used when  target other page,so it navigate itself.why??? 
　　　　　　　　mds
[EMAIL PROTECTED]
　　　　　　　　　　2006-04-12