There are 6 previous versions of this script.
// ==UserScript==
// @name amazon_dp
// @description Amazon Details Page
// @namespace smalltalk80.uiuc
// @include http://*.amazon.com/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js
// ==/UserScript==
$(document).ready(function() {
var n = $("li > b:contains('ASIN:')").get(0);
if (! n) {
n = $("li > b:contains('ISBN-10:')").get(0);
}
if (n && n.nextSibling && n.nextSibling.nodeName == "#text") {
var asin = $.trim(n.nextSibling.nodeValue);
var camelLink = "<a href='http://camelcamelcamel.com/product/" + asin + "'>Price History</a>";
var categories = $("h2:contains('Look for Similar Items by Category')").nextAll("div.content").html();
$("#handleBuy > div.buying").append("<div style='margin: 5px'>" + categories + camelLink + "</div>");
}
//$("#AutoBuyXGetY").hide();
});