I am not talking about accessing the clipboard. I am talking about accessing the selection object, which you have 100% access too.

 

Here is some pseudo-code for you

 

Bind key event

-Check if ctrl+c

   -If so copy from selection/range object and overwrite in temp location

-Check if ctrl+v

   -If so paste into current selection area

 

-Check for copy button pressed

   -If so copy from selection/range object and overwrite in temp location

-Check if paste button pressed

 

 

They can do it: http://code.google.com/p/js-hotkeys/ and I can do it or you can do this http://yangshuai.googlepages.com/jquerycopyplugin and another one http://code.google.com/p/zeroclipboard/