Originally posted by Abhishek Reddy Chepyala:
No one knows how to do this?
sure there are. But as you have seen, JavaRanch is not the place to come to try and get people to write code for you. But you will get lots of help writing your own.
Menus consists of elements, usually lists, that are hidden and shown as necessary and positioned properly in relation to the other page elements. You'll need to understand the CSS behind positioning and the display of elements, and the JavaScript necessary to manipulate it.
There are tons and tons of examples on the web.