// based on "renamer"

// ==UserScript== 
// @name          It's Derry
// @namespace     http://www.eviljaymz.com
// @description   Replaces 'Londonderry' with 'Derry'
// @include       * 
// ==/UserScript== 



(function() {
  var replacements, regex, key, textnodes, node, s; 
  replacements = { 
		"Londonderry": "Derry"
    };
regex = {}; 
for (key in replacements) { 
    regex[key] = new RegExp(key, 'gi'); 
} 
textnodes = document.evaluate( "//body//text()", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); 
for (var i = 0; i < textnodes.snapshotLength; i++) { 
    node = textnodes.snapshotItem(i); 
    s = node.data; 
    for (key in replacements) { 
        s = s.replace(regex[key], replacements[key]); 
    } 
    node.data = s; 
} 
})();