Google Image direct links

By Juhani — Last update May 20, 2009 — Installed 9,629 times. Daily Installs: 10, 11, 10, 11, 5, 3, 9, 5, 17, 10, 7, 3, 15, 10, 6, 6, 12, 7, 9, 7, 16, 4, 5, 9, 5, 4, 2, 14, 8, 10, 9, 2

There are 1 previous version of this script. 

/*
    Rewrite Google Image Search result
    links to point directly at the images
    Patrick Cavit, pcavit@gmail.com
    http://patcavit.com

    Copy, use, modify, spread as you see fit.
    Massive thanks go out to Eric Hamiter, this code
    is just a quick modification of his extesion at
    http://roachfiend.com/
*/

/*
    Modified by Juhani Naskali
    Thanks go out to Patrick Cavit for the original script
    and FurYy for the hack with the original google links.
*/

// ==UserScript==
// @name          Google Image direct links
// @namespace     http://juhani.naskali.net/files/gm/
// @description   Rewrites Google Image Search links to point straight to the pictures, and adds links to the corresponding websites without google frames.
// @version	0.2
// @date		2007-04-15
// @include       http://images.google.*/*
// ==/UserScript==

(function()
{
    function selectNodes(doc, context, xpath)
    {
       var nodes = doc.evaluate(xpath, context, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
       var result = new Array( nodes.snapshotLength );

       for (var x=0; x<result.length; x++)
       {
          result[x] = nodes.snapshotItem(x);
       }

       return result;
    }

    doc = window.document;

    // Get a list of all A tags that have an href attribute containing the start and stop key strings.
    var googLinks = selectNodes(doc, doc.body, "//A[contains(@href,'/imgres?imgurl=')][contains(@href,'&imgrefurl=')]");
       
    // MOD: links the domain name to the original google link
    var googFonts = selectNodes(doc, doc.body, "//SPAN[contains(@class, 'a')]");
       
    for (var x=0; x<googLinks.length; x++)
    {
        // Capture the stuff between the start and stop key strings.
        var gmatch = googLinks[x].href.match( /\/imgres\?imgurl\=(.*?)\&imgrefurl\=/ );
        var urlmatch = googLinks[x].href.match( /\&imgrefurl\=(.*?)\&h\=/ );

        // If it matched successfully...
        if (gmatch)
        {
            // Replace the domain name with link to the webpage containing the image.
            googFonts[x].innerHTML="<a href=\""+decodeURIComponent(urlmatch[1])+"\">"+googFonts[x].innerHTML+"</a>";
            
            // Replace the link's href with the contents of the text captured in the regular expression's parenthesis.
            googLinks[x].href = decodeURI(gmatch[1]);
        }
    }
})();