You do not have the roles required to access this portlet.

"You do not have the roles required to access this portlet." if you are getting this error while showing the portlets in your pages. You can hide them by setting

layout.show.portlet.access.denied=false in portal.properties file.

by default its value is true.

PortletURL

This tutorial demonstrates how to get a Portlet to link back to itself within a JSP or even with the HTML code spit out within the doView method of a Portlet. The key is the PortletURL object... T...

URL :http://www.youtube.com/watch?v=SUlgKvWaZwo

Liferay

Liferay Portal provides jQuery as the default javascript library. This tutorial demonstrates how to build Standard tabbed page for your portlet using the jQuery library's tabs() method.

URL: http://www.youtube.com/watch?v=QBeomic29uc