// ==UserScript==
// @name           Google Cache Continue
// @namespace      htt://rephrase.net/box/user-js/
// @description    Rewrite links in Google Cache pages to others within the cache.
// @include        http://\d+\.\d+\.\d+\.\d+\/search\?q=cache:*
// ==/UserScript==

(function() {
    var links = document.evaluate("//a[@href]",
                                  document,
                                  null,
                                  XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
                                  null);
    var link, i;
    for (link = null, i = 0; (link = links.snapshotItem(i)); i++) {
        if (link.href.substr(0, 5) == "http:") {
            link.href = getCacheURL(link.href);
        }
    }
    
    function getCacheURL(url) {
        if (url.match(/\d+\.\d+\.\d+\.\d+\/search\?q=cache:/)) {
            return url;
        }
        if (url.indexOf("#") > -1) {
            return document.location.href.split("#")[0] + "#" + url.split("#")[1];
        }
        return 'http://www.google.com/search?q=cache:' + url;
    }
})();