I have read the article ?PortletLogin? and have tried to prove it but my problem is that I have a JSP page. How could I do it???

Thanks

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 <table border=0 cellspacing=4 cellpadding=2>
 <tr>
 <td colspan=2>
 <img src='<%=request.getContextPath()%>/images/logo/AlfrescoLogo200.png' width=200 height=58 alt="Alfresco" title="Alfresco">
 </td>
 </tr>

 <tr>
 <td colspan=2>
 <span class='mainSubTitle'><h:outputText value="#{msg.login_details}" />:</span>
 </td>
 </tr>

 <tr>
 <td>
 <h:outputText value="#{msg.username}"/>:
 </td>
 <td>
 <%-- input text field, with an example of a nested validator tag --%>
 <h:inputText id="user-name" value="#{LoginBean.username}" validator="#{LoginBean.validateUsername}" style="width:150px" />

 </td>
 </tr>

 <tr>
 <td>
 <h:outputText value="#{msg.password}"/>:
 </td>
 <td>
 <%-- password text field, with an example of a validation bean method --%>
 <%-- the validation method adds a faces message to be displayed by a message tag --%>
 <h:inputSecret id="user-password" value="#{LoginBean.password}" validator="#{LoginBean.validatePassword}" style="width:150px" />
 </td>
 </tr>

 <tr>
 <td>
 <h:outputText value="#{msg.language}"/>:
 </td>
 <td>
 <%-- language selection drop-down --%>
 <h:selectOneMenu id="language" value="#{LoginBean.language}" style="width:150px" onchange="document.forms['loginForm'].submit(); return true;">
 <f:selectItems value="#{LoginBean.languages}" />
 </h:selectOneMenu>
 </td>
 </tr>

 <tr>
 <td colspan=2 align=right>
 <h:commandButton id="submit" action="#{LoginBean.login}" value="#{msg.login}" />
 </td>
 </tr>

 <tr>
 <td colspan=2>
 <%-- messages tag to show messages not handled by other specific message tags --%>
 <h:messages style="padding-top:8px; color:red; font-size:10px" layout="table" />
 </td>
 </tr>
 </table>