Cadastrando link do facebook

<div id="divCadastro">
		<div class="headCadastro">
			<h:panelGrid columns="2" styleClass="panelGridCadastro">
				<p align="center">
					<span class="titulo1">Cadastro</span>
				</p>
				<p>
					<span class="titulo2">Preencha os Dados</span>
				</p>
				<p:graphicImage url="../images/dianaChibi.png" width="150px" />
			</h:panelGrid>
		</div>
		<br />
		<p>Atenção: Os campos com (*) asterisco são de preenchimento
			obrigatório.</p>
		<br />
		<h:form>
			<p:messages id="messages" />
			<h:panelGrid columns="2" id="panelCadastro" cellspacing="10"
				styleClass="panelCadastro" >

				<p:outputLabel for="user_id" value="ID usuario:" styleClass="styleLabelCadastro"/>
				<p:inputText id="user_id" maxlength="15"
					value="#{usuarioManagedBean.usuario.user_id}" required="true" />


				<p:outputLabel for="senha" value="Senha:" styleClass="styleLabelCadastro" />
				<p:password id="senha" value="#{usuarioManagedBean.usuario.senha}"
					maxlength="15" required="true" />


				<p:outputLabel for="celular" value="Whatsapp:" styleClass="styleLabelCadastro"/>
				<p:inputMask id="celular"
					value="#{usuarioManagedBean.usuario.celular}"
					mask="(99) 99999-9999" required="false" />


				<p:outputLabel for="email" value="Email:" styleClass="styleLabelCadastro"/>
				<p:inputText id="email" value="#{usuarioManagedBean.usuario.email}"
					required="true" />

				
				
				<p:outputLabel for="customRadio" value="Nação:" styleClass="styleLabelCadastro"/>
				<h:panelGrid columns="7" cellspacing="6">
					<p:selectOneRadio id="customRadio" 
						value="#{usuarioManagedBean.usuario.nacao}"
						layout="custom">
						<f:selectItem itemLabel="Ametis" itemValue="Ametis" />
						<f:selectItem itemLabel="Exion" itemValue="Exion" />
						<f:selectItem itemLabel="Selest" itemValue="Selest" />
					</p:selectOneRadio>

					
						<p:radioButton for="customRadio" itemIndex="0" />
						<p:graphicImage url="../images/ametis.jpg" />
						<p:radioButton for="customRadio" itemIndex="1" />
						<p:graphicImage url="../images/exion.jpg" />
						<p:radioButton for="customRadio" itemIndex="2" />
						<p:graphicImage url="../images/selest.jpg" />
					</h:panelGrid>



				<p:commandButton value="Cadastrar" icon="ui-icon-star"
					id="botaoCadastrar" action="#{usuarioManagedBean.cadastraUsuario}"
					update="messages" styleClass="botaoMedio">
				</p:commandButton>

				<p:commandButton value="Limpar" styleClass="botaoMedio">
					<p:ajax update="panelCadastro" resetValues="true" />
				</p:commandButton>

			</h:panelGrid>
		</h:form>
	</div>