Automatically copies selected Bitcoin addresses to clipboard!

EasyCopyBTC.user.js

// ==UserScript==
// @name         EasyCopyBTC
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Automatically copies selected Bitcoin addresses to clipboard!
// @author       Aero Blue
// @match        *://*/*
// @grant        none
// ==/UserScript==

function getSelectedText() {
    var text = "";
    if (typeof window.getSelection != "undefined") {
        text = window.getSelection().toString();
    } else if (typeof document.selection != "undefined" && document.selection.type == "Text") {
        text = document.selection.createRange().text;
    }
    return text;
}

function copyToClipBoard() {
    var selectedText = getSelectedText();
    if (/^([13][a-km-zA-HJ-NP-Z1-9]{25,34}|bc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71})$/.test(selectedText) == true) {
        document.execCommand("copy");
    }
}

document.onmouseup = copyToClipBoard;
document.onkeyup = copyToClipBoard;