Add Class or ID to Menu Items Module: Popups  
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Read Me: http://www.mastersfunds.com.php5-23.dfw1-2.websitetestlink.com/README.txt


Brief: I need to add a popup form to the menu links STAY INFORMED on the top-right and sidebar menu. I tried the Popups module, which loads all of my sites pages blank/white when activated. I am using it, but I am not sure how to use it.

The README.txt file has 4 ways of adding it, and I would like to use the second method (adding "popup" as CSS class to an existing link), but I am unable to add a custom CSS class/ID to a specific menu item. Is there a module that can do this, or does anyone know a easy way to setup?
I am pretty sure that the Menu Attributes module will work for you.  It adds several options to the menu entries, including ID and class attributes.  You would just need to edit the menu entries that you need this class on.