Twitter: Increasing number of twitters shown in Twitter blog badge

I modified the Twitter javascript badge to list my last 10 twitters in my blog sidebar:

<script type="text/javascript">
var elapsedTime = function(createdAt) {
    var ageInSeconds = (new Date().getTime() - new Date(createdAt).getTime()) / 1000;
    var s = function(n) { return n == 1 ? '' : 's' };
    if (ageInSeconds < 0) {
        return 'just now';
    }
    if (ageInSeconds < 60) {
        var n = ageInSeconds;
        return n + ' second' + s(n) + ' ago';
    }
    if (ageInSeconds < 60 * 60) {
        var n = Math.floor(ageInSeconds/60);
        return n + ' minute' + s(n) + ' ago';
    }
    if (ageInSeconds < 60 * 60 * 24) {
        var n = Math.floor(ageInSeconds/60/60);
        return n + ' hour' + s(n) + ' ago';
    }
    if (ageInSeconds < 60 * 60 * 24 * 7) {
        var n = Math.floor(ageInSeconds/60/60/24);
        return n + ' day' + s(n) + ' ago';
    }
    if (ageInSeconds < 60 * 60 * 24 * 31) {
        var n = Math.floor(ageInSeconds/60/60/24/7);
        return n + ' week' + s(n) + ' ago';
    }
    if (ageInSeconds < 60 * 60 * 24 * 365) {
        var n = Math.floor(ageInSeconds/60/60/24/31);
        return n + ' month' + s(n) + ' ago';
    }
    var n = Math.floor(ageInSeconds/60/60/24/365);
    return n + ' year' + s(n) + ' ago';
}
// Make date parseable in IE [Jon Aquino 2007-03-29]
function fixDate(d) {
    var a = d.split(' ');
    var year = a.pop();
    return a.slice(0, 3).concat([year]).concat(a.slice(3)).join(' ');
}
function twitterCallback(obj) {
    var html = '';
    for (var i = 0; i < obj.length; i++) {
      html += '<li>' + obj[i].text + ' (' + elapsedTime(fixDate(obj[i].created_at)) + ')</li>';
    }
    document.getElementById('twitter_list').innerHTML = html;
}
</script>
<ul id="twitter_list"></ul>
<script type="text/javascript" src="http://www.twitter.com/statuses/user_timeline/26613.json?callback=twitterCallback&count=10"></script>