function Wordpress to open image in lightbox

implemented lightbox in Wordpress

i have this code , but i need to modified to work ,

http://pastebin.com/hzkc2GwK

The value on href= doesn't work , i need to open the image in lightbox mode , I use this option for upload a image http://imageshack.us/photo/my-images/217/5137开发者_如何学Python3696.jpg/

How can do fix this code????

very thanks!!

Go Here

It gives the Codex for working with the WP featured image options