browsers with IRC-support: which one supports client-side JavaScript

Some browsers like Opera have support for IRC so there's no need to have a separate IRC-client like MIRC.

Is there a 开发者_JAVA百科browser that supports client-side JavaScript that catches incoming messages and allows making use of it? I'm asking this because as far as I know they usually catch enhance HTML/XML-events.

Currently I'd be trying to catch the regular messages and none of the controlling messages like "user has joined", "user has left" and such.

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Opera's IRC client is not scriptable at all (besides what it barely works)

ChatZilla is. Moreover, it was written in JavaScript - https://addons.mozilla.org/firefox/addon/chatzilla/