Introduction #

Namespacing ensures that the given name is uniquely associated with this portlet and avoids name conflicts with other elements on the portal page or with other portlets on the page.

To use it you must import standard portlet library

<%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %>

This tag produces a unique value for the current portlet:

<portlet:namespace/>

Here is an example how to use it in the code:

  <script>
    function <portlet:namespace />myFunction() {
       alert("<portlet:namespace />myButton was clicked" );
    }
  </script>
  <input type="button" id="<portlet:namespace />myButton" onclick="<portlet:namespace />myFunction();">