Make a lightbox style share-to-facebook feature for existing webpage

I'd like to add a "share to facebook" feature to this webpage, in a Lightbox-style popup window: [login to view URL] When you click a picture, I'd like to open the picture in a Lightbox style window. Note that I'd rather not use the Lightbox package, since I'd like more control over it. You can download all the files here: [login to view URL] When you click a picture in the slideshow, a Lightobx-style popup window should be launched from the javascript function showPic(). As you can see if you click one of the pictures now, it already identifies the picture that should be opened. The Lightbox-style popup layer will: - show the picture in large format - show a "share to Facebook" button - show a "tweet this" button - show left/right navigational arrows to scroll through the other 3 pictures in the group (each picture is a member of a 4-picture group) - have a "close" button If possible, I'd like the user to be logged out of Facebook/Twitter when they close the window. Note that this will be dislpayed on an iPad. It shouldn't open any additional windows, it should keep the user in the current browser window. Let me know any questions.