Javascript drop down menu for website

I need help to create a drop down menu system for a website I developed for a client.? I have created a static HTML website with some flash images, however my static navigation? is running out of? room on the page.? I need help to create a drop down menu. I need help to create the script, implementation to the webpages, and learn how to edit the script to add or remove links as needed in the future.? ## Deliverables Please view the attached image to get an idea of the current static navigation.? This will need to be updated as a drop down menu.? thanks