<h:form class="update">
                    <h:panelGrid columns="2">
                        <h:panelGroup>User Session Timeout</h:panelGroup>
                        <h:panelGroup>
                            <h:selectOneMenu value="#{ApplicationController.settingValue('SessionTTL')}">
                                <f:selectItem itemValue="one" itemLabel="Option one" />
                                <f:selectItem itemValue="two" itemLabel="Option two" />
                                <f:selectItem itemValue="three" itemLabel="Option three" />
                                <f:selectItem itemValue="custom" itemLabel="Define custom value" />
                                <f:ajax render="input" />
                            </h:selectOneMenu>
                            <h:panelGroup id="input">
                                <h:inputText value="#{ApplicationController.settingValue('SessionTTL')}" rendered="#{bean.type == 'custom'}" required="true" />
                            </h:panelGroup>
                        </h:panelGroup>
                    </h:panelGrid>

                    <h:commandButton label="Update Settings" value="update" action="#{ApplicationController.UpdateDB}"/>
           </h:form>