<h:panelGrid columns="1">
         <h:outputLabel for="username" value="USERNAME:"/>
         <p:inputText id="username" value=""
                      required="true" label="username" />

        <h:outputLabel for="password" value="PASSWORD:" />
    <p:password id="password" value=""
                      required="true" label="password" feedback="true" />

        <h:outputLabel for="password2" value="REPEAT PASSWORD:" />
    <p:password id="password2" value=""
                      required="true" label="password2" feedback="true" />


    <h:outputLabel for="email" value="E-MAIL:" />

        <p:inputText id="email" value=""
              required="true" label="email" placeholder="example@gmail.com" />
      </h:panelGrid>


        <p:messages showDetail="true"/>
        <p:captcha label="Captcha" />
        <p:commandButton value="Check" actionListener="#{a}" ajax="false" icon="ui-icon-check"/>



        </h:form>