Fix Nabble: Fix Nabble's frame reloading bug by removing evil browser sniffing for Opera.

Fix Nabble 1.00.js

// ==UserScript==
// @name Fix Nabble
// @version 1.00
// @description Fix Nabble's frame reloading bug by removing evil browser sniffing for Opera.
// @author XP1 (https://github.com/XP1/)
// @namespace https://gist.github.com/1129867/
// @include http*://nabble.com/*
// @include http*://*.nabble.com/*
// ==/UserScript==

/*jslint browser: true, vars: true, white: true, maxerr: 50, indent: 4 */
(function (opera)
{
    "use strict";

    opera.addEventListener("BeforeScript", function (userJsEvent)
    {
        var element = userJsEvent.element;
        if (element.src.indexOf("/Javascript.jtp") !== -1)
        {
            element.text = element.text.replace(/else if \(\$\.browser\.opera\) return document\.documentElement\.clientHeight;/g, "");
        }
    }, false);
}(window.opera));

Nabble removed the evil browser sniffing for Opera, on August 8, 2011.
This User JS is now unnecessary.