Parsing HTML using Microsoft JScript

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Javascript

HTML

Ajax

I'm trying to collect information about a list of web pages using JScript in Windows Scripting Host. And to do that, I need to get the source of each HTML page and parse it.

What I need is, create some kind of HTML DOM object using the responseText/responseXML and use the familiar getElementById, and getElementsByTagNames functions on that HTML DOM. How do I do that?

I am using the following JScript and running it using Windows Scripting Host V5.8.

var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

xmlhttp.onreadystatechange = function() {
    if (xmlhttp.readyState == 4) {
        if (xmlhttp.status == 200) {
            var xmldom = xmlhttp.responseXML;
            
            if (xmldom.parsed) {
                var imgs = xmldom.getElementsByTagName('img');
                WScript.Echo("imgs: " + imgs + " " + imgs.length);
            }
        }
    }
}

xmlhttp.open("GET", "http://www.example.com/somepage.php", false);
xmlhttp.send();

And I am getting the following output.

imgs:  0

I have been searching the whole night yesterday and had no luck!