i am working on dynamic page. want to include a xhtml page to main xhtml page with tabmenu. when i run code always same page include main page. tabs dont work anoymore.
main html.
<html xmlns="http://www.w3.org/1999/xhtml" 
  xmlns:h="http://xmlns.jcp.org/jsf/html"
  xmlns:p="http://primefaces.org/ui"
  xmlns:f="http://xmlns.jcp.org/jsf/core" 
  xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<f:view contentType="text/html">
    <h:head>
        <f:facet name="first">
            <meta content='text/html; charset=UTF-8' http-equiv="Content-Type"/>
            <title>İstatistik</title>
        </f:facet>
    </h:head>
    <body>
    <p:layout fullPage="true">
        <p:layoutUnit position="north"  style="font-size: 12px!important" >
            <p:tabMenu id="tabmenu1" activeIndex="#{turnPage.index}"  >
                <p:menuitem value="Genel" outcome="main"  actionListener="#{turnPage.actionEventPage(e, 0)}" update="mainpanel" />
                <p:menuitem value="Demografik Göstergeler" outcome="main"  actionListener="#{turnPage.actionEventPage(e, 1)}" update="mainpanel" />
                <p:menuitem value="Mortalite ve Mobidite" outcome="main" actionListener="#{turnPage.actionEventPage(e, 2)}" update="mainpanel" />
                <p:menuitem value="Risk Faktörleri" outcome="main" actionListener="#{turnPage.actionEventPage(e, 3)}" update="mainpanel" />
                <p:menuitem value="Bağışıklama Anne/çocuk" outcome="main" actionListener="#{turnPage.actionEventPage(e, 4)}" update="mainpanel" />
                <p:menuitem value="Sağlık Kurumları" outcome="main" actionListener="#{turnPage.actionEventPage(e, 5)}" update="mainpanel" />
            </p:tabMenu>
        </p:layoutUnit>  
        <p:layoutUnit  position="center">
            <p:outputPanel id="mainpanel"  >
                <h:form>
                    <ui:include src="#{turnPage.pathpage}"/>
                </h:form>
            </p:outputPanel>
        </p:layoutUnit>      
    </p:layout>
</body>
}
and here is my bean.
{
private int index;
private String pathpage;
public void setPathpage(String pathpage) {
    this.pathpage = pathpage;
}
public String getPathpage() {
    return pathpage;
}
public void setIndex(int index) {
    this.index = index;
}
public int getIndex() {
    return index;
}
public void actionEventPage(ActionEvent e, int index){
    switch (index) {
        case 0:
            pathpage =  "forms/genel.xhtml";
            break;
        case 1:
            pathpage =  "forms/demografi.xhtml";
            break;
        case 2:
            pathpage =  "forms/mortalite.xhtml";
            break;
        case 3:
            pathpage =  "forms/riskfaktor.xhtml";
            break; 
        case 4:
            pathpage =  "forms/bagisiklama.xhtml";
            break;
        case 5:
            pathpage =  "forms/saglikkurum.xhtml";
            break;
 
    