Need help coding features in. Probably Java.

[project0]

I want certain features on my site. I'm pretty sure they can be done using Java code. The features are as follows:
- A simple pop-up style guestbook where visitors can leave comments for each post on my site and not have to leave any other information besides the comment itself. Obviously other visitors will be able to view these comments without their names being on the site.
- For future galleries I make, I was thinking about making the galleries in the shape of a circle. So say I've got 12 thumbs, well they'll make a circle and in the middle will be gallery text and/or a generic pic of the model. When the visitor runs their cursor over the thumb, the thumb will increase slightly in size. They can also click on it to take them to that picture.
These aren't horribly complicated jobs, but I lack the knowledge right now to do it so I'd rather just pay someone to do it. Any persons interested in taking on this job for $$$, just hit me up. Later.