Had a bungee cord break, so have put a temporary replacement in. But would love to figure out how to tie a particular knot so I can put it back into the original condition. See the knot in the photo in the link (circled in yellow) - any link to how to tie this?

https://dl.dropboxusercontent.com/u/4637993/2013-06-25%2008.40.23-005.jpg



Thanks!