Easy Lightbox

The New Lightbox plugin allows you to add custom attribute (choosing rel or class) to linked images in posts, pages and comments.Image formats supported are bmp, jpg, gif, jpeg and png. You can use this plugin with other advanced lightbox plugins. Is not include Javascript files for any lightbox plugins, you must include yourself via your theme. Additional very simply you can group your images for each post by adding [id] in your rel or class and you can also add a custom attribute to linked Flash files (swf and flv).