copy/paste text returns additional information

I coped the text title of this article and it includes a link of the page when I paste it somehow. How does it work? Copy the title and then paste it somewhere. You'll see what I mean.

http://www.foxnews.com/tech/2013/03/29/digital-currency-bitcoin-surpasses-20-national-currencies-in-value/

 

I think it works with JS. With JS you can catch the "copy event".

 

Unable to catch your question, what actually are you asking about ??Can you elaborate a bit?

 

Simply if I copy some text on that page and then paste it in note pad there is extra print that I did not copy. It adds their website. So with javascript how do you add "from xxxx" whenever someone copies text from your page?

 

Just google it, there are many hits:
http://stackoverflow.com/questions/10827256/how-to-detect-copy-and-paste-in-javascript
http://stackoverflow.com/questions/2903991/how-to-detect-ctrlv-ctrlc-using-javascript
http://help.dottoro.com/ljwexqxl.php

I did it once with jQuery. Just google a little. Isn't that hard.

 

Thanks, but I don't just need to know how to detect though. I need to append content to whatever they are copying.

 

To append something watch this link:
http://techstream.org/Web-Development/Javascript/add_copyright