I want to use this library: <http://lokeshdhakar.com/projects/lightbox2/>

I can't attach `rel="lightbox"` to each image so I want to use jQuery to trigger the lightbox.

I was thinking about something like:

```
$('img').click(function(){
  //triger lightbox for this image
  //use self src as href
});

```

How can I trigger the lightbox for one image?