I am trying to write a report-generator to collect user-comments from a list of external HTML files. User-comments are wrapped in < span> elements.

Can this be done using JavaScript?

Here's my attempt:

function generateCommentReport()
{
    var files = document.querySelectorAll('td a'); //Files to scan are links in an HTML table
    var outputWindow = window.open(); //Output browser window for report

    for(var i = 0; i<files.length; i++){
        //Open each file in a browser window
        win = window.open();
        win.location.href = files[i].href;

        //Scan opened window for 'comment's
        comments = win.document.getElementsByName('comment');
        for(var j=0;j<comments.length;j++){
            //Add to output report
            outputWindow.document.write(comment[i].innerHTML);
        }
    }
}