Add a drop down list to any navbar

[deb0]

My navbars are becoming clutterred and I would like to know how can I add a drop downlist with links instead of the normal way off adding links on a navbar?

thx in advance.

[Deaths]

<a href="http://www.vbulletin.com/forum/showpost.php?p=769703&postcount=4" target="_blank">http://www.vbulletin.com/forum/showp...03&postcount=4</a>