Userscripts.org

// Mailman Discard Default
// version 0.1
// 2005-06-16
// Copyright (c) 2005, Paul Smith
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.  To install it, you need
// Greasemonkey 0.3 or later: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script.
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// To uninstall, go to Tools/Manage User Scripts,
// select "Mailman Discard Default", and click Uninstall.
//
// --------------------------------------------------------------------
//
// If you're like me and you administer several Mailman lists, you
// usually spend a good deal of time discarding spam that's queued-up
// in the moderation database. I got tired of clicking on the "Discard"
// radio button for each message like a sucker, so I decided that they
// should be set to "Discard" by default instead of "Hold". Et voilˆ.
//
// ==UserScript==
// @name        Mailman Discard Default
// @namespace   http://info.cnt.org/~paul/greasemonkey/
// @description set action radio button to "discard"
// @include     http://*/mailman/admindb/*
// ==/UserScript==

var allDiscards;

allDiscards = document.evaluate(
    "//input[@value='3' and @type='radio' and starts-with(@name,'senderaction')]", 
    document, 
    null, 
    XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, 
    null);

for (var i = 0; i < allDiscards.snapshotLength; i++) {
    var thisDiscard = allDiscards.snapshotItem(i);
    thisDiscard.checked = true;
}