Silverstripe RedirectorPage open external Link in new window

Silverstripe Tip of the Week:

If you want to open a “Other website URL” Link of a RedirectorPage in a new window with target=_blank, you can use the following snippet:

<% if ExternalURL %>
<a href="$ExternalURL" class="external" target="_blank">$MenuTitle.XML</a>
<% else %>
<a href="$Link">$MenuTitle.XML</a>
<% end_if %>

Edit:
Or this one:

<% if is_a(RedirectorPage) %><% if RedirectionType = External %>target="_blank"<% end_if %><% end_if %>

found here: http://www.silverstripe.org/general-questions/show/9600

Hope it Helps!