Dialog supports multiple dialog types by default, such as confirmation, information, warning, and error, and can further be customized with a custom dialog type. It can even display modal dialogs and block input to the page until the prompt is dismissed!
You can learn more about it and get the code
Paste Ninja is a pastebin application that lets you to share code snippets with others. Instead of flooding an IRC channel or your Instant Messenger conversations with lines of source code, you can paste it online for public viewing.
The world probably doesn't need another pastebin app, either, but there are several features in store that other pastebins don't have. The goal is to revolutionize how people use pastebins and make internet debugging a truly collaborative experience.
I haven't decided yet if I'm going to opensource the code for Paste Ninja-- or under which license it would be released under if I did so-- but I'm not adverse to the idea if there is enough demand. Regardless, it's free to use, so be the "master of your pastebin" and give Paste Ninja a try at http://www.pasteninja.com.