Greasemonkey script:Remove left blank in Google results.user.js

// ==UserScript==
// @name           Remove left blank in Google results
// @namespace      http://tevp.net/projects/
// @description    Remove left blank in Google results
// @include        http://www.google.*/search*
// ==/UserScript==

function xpath(query) {
    return document.evaluate(query, document, null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
}

var allDivs = xpath("//div[@id='res']|//div[@id='ssb']");
for (var i = 0; i < allDivs.snapshotLength; i++) {
    var thisDiv = allDivs.snapshotItem(i);
	thisDiv.style.margin = "0px";
}