I have a css file that I use when I need to have menus pop open when you mouse over them. I have modified it slightly to fit my new use for it but I can't figure out how to only open the submenu when you click on the menu item rather than mouse over it. I am creating some html help files and I wanted to add a Related Topics button, at the bottom of some pages. When clicked will popup a submenu of topics the user can link to. I have the button looking correct and the popup menu works great when I hover over the button. So all I need now is to figure out how to dump the hover behaviour, and switch it to open the menu when the user clicks on it instead.

Thanks in advance for any help you can give!