You can add in something like this (as I have for the second link, highlighted red) to the configured link(s) for those you want to have this treatment (from the demo):
Code:
var menucontents='<nobr><a href="http://www.dynamicdrive.com">Dynamic Drive</a> | <a href="http://www.javascriptkit.com" onclick="window.open(this.href,\'\',\'width=600, height=400\');return false;">JavaScript Kit</a> | <a href="http://www.codingforums.com">CodingForums.com</a> | <a href="http://www.builder.com">Builder.com</a> | <a href="http://freewarejava.com">Freewarejava.com</a></nobr>'
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