Someone

 (function() {        var words = new Array("SIGMA", "ILTEBER", "ONORE");    var bgColors = new Array("#BFBFBF");            for (var i = 0; i < words.length; i ++ ) {        var xpath = "//tr[contains(translate(.,'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'),'" + words[i] + "')]";        var results = document.evaluate(xpath, document, null, XPathResult.UNORDERED_SNAPSHOT_TYPE, null);        var thisItem         while (thisItem = results.iterateNext()) {            thisItem.style.backgroundColor = bgColors[i]                    }    }    })()