How to change the initial view of richfaces portlet

[sri_hari]

Hi ,

i am using Richfaces portlet and i want to dynamically change the initial view of the portlet.

my portlet.xml is given below

<portlet-app version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/portlet"
 xmlns="http://java.sun.com/xml/ns/portlet">
 <portlet>
 <portlet-name>samplePortlet</portlet-name>
 <portlet-class>
 sample.samplePortlet
 </portlet-class>

 <init-param>
 <name>javax.portlet.faces.defaultViewId.view</name>
 <value>/jsf/sample.xhtml</value>
 </init-param>
 <portlet-info>
 <title>sample Portlet</title>
 </portlet-info>

 <supports>
 <mime-type>text/html</mime-type>
 <portlet-mode>VIEW</portlet-mode>
 </supports>
 </portlet>
</portlet-app>