Need Forum Textarea Plugin

[eluser]Unknown[/eluser]
Hello,

I'm building a Forum for a site i'm making using Codeigniter and I need some sort of advanced textarea for users to create posts with. This might not be specifically a CI plugin; I've seen a jQuery/JavaScript one in the past but have not been able to find it since.

Here is an example one:

Create Forum Post Image

Basically it needs to be a textarea with inbuilt formatting and maybe some buttons to insert common BBcode snipets. I've already got a BBcode parser for CI so it doesn't need that built in.

If anyone knows of a plugin that I can use i would be very grateful.

Thanks in advance.