// ==UserScript==
// @id             www.java-gaming.org-3dfa1163-bb02-4059-b3d1-c11863ffbbe0@scriptish
// @name           QR Code textual form
// @version        1.0
// @namespace      
// @author         
// @description    
// @include        http://www.java-gaming.org/topics/*
// @run-at         document-end
// ==/UserScript==

function decode(str) {
    return unescape(str.replace(/\+/g, " "));
}

var imgTags = document.getElementsByTagName("img");
for (imgTag in imgTags) {
    var tag = imgTags[imgTag];
    var srcAttribute = tag.getAttribute("src");
    if (srcAttribute.indexOf("http://chart.apis.google.com/") == 0) {
        var getTextual = decode(srcAttribute.split("chl=")[1]);
        var newSpan = document.createElement("span");
        newSpan.innerHTML = "<br/>QR TEXT: <br/>" + getTextual + "<br/>";
        tag.parentNode.appendChild(newSpan);
    }
}