Have you tried to present some code or sample content for the end-user that you wanted to allow them to easily copy to their clip-board?
Using zclip you can attach an event to a button or a text-area such that when the event occurs, the content is copied to the clipboard.
It’s called “ZeroClipboard” and it’s available from code.google.com
Both tools do the following, they replace or overlay a flash plugin on top which then passes the needed content to the native clipboard. Both solutions do not have a graceful way to do copy to clipboard especially if you do not have flash enabled or installed for your platform - browser.