How to make 3rd level links in Chrome CSS Drop Down Menu

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1) Script Title: Chrome CSS Drop Down Menu

2) Script URL (on DD): http://www.dynamicdrive.com/dynamici...rome/index.htm

3) Describe problem:

Hi,
Can any one help me out in how can a third level of links can be added in this Chrome CSS Drop Down Menu. Currently there are two levels of the links in there.

For example if I hover over top links, a list of sub links appears, How can we add another level if I hover over those sub links and the further sub links (3rd level) appear?
Any quick help will be much appreciated.

Thanks

[creativedge]

Hi, Can anyone help? this is urgent !

Thanks