if(!window.ActiveXObject)
{
    XMLDocument.prototype.selectNodes = function(path)
    {
        var e = new XPathEvaluator();
        var rs = e.evaluate(path, this, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
        var ar = new Array();
        if(rs != null)
        {
            var elem = rs.iterateNext();
            while(elem)
            {
                ar.push(elem);
                rs.iterateNext();
            }
        }
        return ar;
    }

    Element.prototype.selectNodes = function(path)
    {
        var e = new XPathEvaluator();
        var rs = e.evaluate(path, this, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
        var ar = new Array();
        if(rs != null)
        {
            var elem = rs.iterateNext();
            while(elem)
            {
                ar.push(elem);
                rs.iterateNext();
            }
        }
        return ar;
    }
    
    Element.prototype.selectSingleNode = function(path)
    {
        var e = new XPathEvaluator();
        var rs = e.evaluate(path, this, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
        if(rs != null)
        {
            return rs.singleNodeValue;
        }
        else
        {
            return null;
        }
    }
}