[Greasemonkey] Adding a link for every result in google

[Jan Swartling]

What am I doing wrong here? I'm trying to find all the urls in the google search result and adding a 
link to Alexa before the Google links "Cached" and "Similar Pages"

res = document.evaluate("//p[@class='g']", document.body, null, 
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

for (var y=0; y<res.snapshotLength; y++) {
   var p = res.snapshotItem(y);

   // this does not return the correct a - it seems as if it evaluates the whole document
   var a = document.evaluate("//a", p, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;

   var font = document.evaluate("//font[@color='#008000']", p, null, 
XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;

   var nobr = document.createElement('nobr');
   nobr.innerHTML = '<a href="http://alexa.com?url=' + a.href + '">Alexa Info</a> - ';
   font.parentNode.insertAfter(nobr, font);

}

/ Jan