Deleted chat_iframe

Wanting to change the background to white, I cut someone's script and pasted it into chat_iframe. I think it must have been an older version, I have 2.3 Fresh install.

So I loaded chat, with no luck in changing the color to white, and then I also lost the ability to chat. The page loads, but my username is not displayed, and whatever I type, doesn't translate to the chat page. So I then tried revert, and inadvertantly deleted the whole chat_iframe.

Is there an effective way to easily recreate this chat_iframe v. 2.3?

Or, do I have to uninstall chat, and then reinstall?

It was working so great, and I had to tinker with it. :disappointed:

JustDave