在Google Chrome中将XML加载到文档对象中

// load XML document based on whether the browser is IE or other browsers
function loadXMLDocument(url)
{
    var doc;

    if (window.ActiveXObject)   // IE
    {
        doc = new ActiveXObject("Msxml2.DOMDocument.6.0");
        doc.async = false;
        doc.load(url);

        alert('document loaded in IE');
    }
    else if (document.implementation && document.implementation.createDocument)
    {
        doc = document.implementation.createDocument("", "", null);

        // this line seems to cause an error in Chrome
        doc.load(url);

        doc.onload = function()
        {
            alert('document loaded in other browsers except Chrome');
        }       
    }
}

这段代码在IE6/7、FF2/3.x中运行良好,但在Chrome中不起作用。