OrbisAmazon TamperMonkey

// ==UserScript==
// @name       AmazonToYaleLibrary
// @namespace  http://alexreinking.com/
// @version    0.1
// @description  Find the ISBN numbers, and add an ORBIS search link by the book name.
// @match      http://www.amazon.com/*
// @copyright  2014, Alex Reinking
// @require http://code.jquery.com/jquery-latest.js
// ==/UserScript==

$(document).ready(function() {
    var isbn10 = $("#productDetailsTable .content li:contains('ISBN-10:')").text();
    var isbn13 = $("#productDetailsTable .content li:contains('ISBN-13:')").text();

    var isbn = isbn13;
    if (isbn == "") {
        isbn = isbn10;
    }
    isbn = isbn.split(':')[1].replace(/\D/g,'');

    var urlPre = "http://orbis.library.yale.edu/vwebv/search?searchArg1=";
    var urlPost = "&argType1=all&searchCode1=GKEY&combine2=and&searchArg2=&argType2=all&searchCode2=GKEY&combine3=and&searchArg3=&argType3=all&searchCode3=GKEY&year=2013-2014&fromYear=&toYear=&location=all&place=all&type=all&medium=all&language=all&recCount=50&searchType=2&page.search.search.button=Search";

    var wholeURL = urlPre + isbn + urlPost;
    $("#productTitle").append(" <a href='" + wholeURL + "'>(ORBIS Search)</a>");
});