Ope new tab/window using h:outputLink

[Wolfgang]

Hi,

I use an h:outputLink in an tomahawk tree2 to open an link in a new window.
This is working but the page where I clicked the link navigates then to 
the start page
which is another xhtml page...?
<t:tree2 id="treeGoSlim"
                    var="node"

                ...... do other stuff ...
       
                     <h:outputLink 
onclick="window.open('#{node.goTermLink}');">
                          <h:outputText value="#{node.description}"/>
                      </h:outputLink>
</tree2>

Does anyone has an idea why this is happening?

Thanks!
Wolfgang