I need to have a "Client Login" link in the main navigation. But it doesn't go to a page...it pops open a modal window (just like clicking "Start New Discussion" pops open this compose window).

I can't add it as an external link, because the URL is simply "#," and there's no provision for adding javascript. I can't believe this issue has never come up, so there must be some way to do it that's simply not immediately obvious.

Any ideas?