drag and drop as adding songs to playlist in media layer

[sree.it]

Hi,
I want code in javascript in which i can able to drag and drop
components between the frames. At same my condition are that it doesn't
removed from first frame in which we are going to dragged .I mean to
say that while dragged function is applied a copy of that component is
go in to that another frame.
The best example for above is function just like adding songs in
the playlist of media player from the file.

Please give me suggestion to ahead.
thanQ
-Sree