KnockoutJS : Rendering a twitter feed using HTML5

this is an example forked from Nicolas Gallagher's timeline lab integrating his nice css and html5 timeline with a twitter feed. And since I've been learning knockout.js and amplify.js, I decided to include how to use these libraries to acheive this goal. Really simple!

by mgrcic

HTML

<script src="https://raw.github.com/appendto/amplify/master/core/amplify.core.js"></script>
<script src="https://raw.github.com/appendto/amplify/master/request/amplify.request.js"></script>
<script src="http://cloud.github.com/downloads/SteveSanderson/knockout/knockout-2.0.0.js"></script>
<script src="https://raw.github.com/SteveSanderson/knockout.mapping/master/knockout.mapping.js"></script>
 <section class="comments">
    <article class="comment">
      <a class="comment-img" href="#non">
        <img src="https://si0.twimg.com/profile_images/1228977399/bg2_normal.jpg" alt="" width="50" height="50">
      </a>
      <div class="comment-body">
        <div class="text">
            <p>Hello, this is an example forked from <a href="http://nicolasgallagher.com">Nicolas Gallagher's</a> <a href="http://jsfiddle.net/necolas/vhZds/embedded/result/">timeline lab</a> integrating his nice css+html5 timeline with a twitter feed. And since I've been learning knockout.js and amplify.js, I decided to include how to use these libraries to acheive this goal. Really simple! <button id="refresh">refresh</button></p>
        </div>
          <p class="attribution">by <a href="http://anexiledderryman.com">Shay Doherty</a> at 21:06, 31st Jan 2012</p>
      </div>
    </article>
</section>   
  <section class="comments" data-bind="foreach: results" >
    <article class="comment">
      <a class="comment-img" href="#non">
        <img data-bind='attr: { src: profile_image_url }'   alt="" width="50" height="50">
      </a>
      <div class="comment-body">
        <div class="text">
         <p data-bind="text: text"></p>
        </div>
        <p class="attribution">by <a href="#non"><i data-bind="text: from_user"></i></a> at <i data-bind="text:created_at"></i></p>
      </div>
    </article>
  </section>

CSS

article, aside, figure, footer, header, hgroup, 
menu, nav, section { display: block; }

body {
    width: 500px;
    margin: 20px auto;
    font: 16px/1.4 Arial, sans-serif;
    background: #f3eee9;
}

p {
    margin: 0 0 1em;
}

.comment {
    overflow: hidden;
    padding: 0 0 1em;
    border-bottom: 1px solid #ddd;
    margin: 0 0 1em;
    *zoom: 1;
}

.comment-img {
    float: left;
    margin-right: 33px;
    border-radius: 5px;
    overflow: hidden;
}

.comment-img img {
    display: block;
}

.comment-body {
    overflow: hidden;
}

.comment .text {
    padding: 10px;
    border: 1px solid #e5e5e5;
    border-radius: 5px;
    background: #fff;
}

.comment .text p:last-child {
    margin: 0;
}

.comment .attribution {
    margin: 0.5em 0 0;
    font-size: 14px;
    color: #666;
}

/* Decoration */

.comments,
.comment {
    position: relative;
}

.comments:before,
.comment:before,
.comment .text:before {
    content: "";
    position: absolute;
    top: 0;
    left: 65px;
}

.comments:before {
    width: 3px;
    top: -20px;
    bottom: -20px;
    background: rgba(0,0,0,0.1);
}

.comment:before {
    width: 9px;
    height: 9px;
    border: 3px solid #fff;
    border-radius: 100px;
    margin: 16px 0 0 -6px;
    box-shadow: 0 1px 1px rgba(0,0,0,0.2), inset 0 1px 1px rgba(0,0,0,0.1);
    background: #ccc;
}

.comment:hover:before {
    background: orange;
}

.comment .text:before {
    top: 18px;
    left: 78px;
    width: 9px;
    height: 9px;
    border-width: 0 0 1px 1px;
    border-style: solid;
    border-color: #e5e5e5;
    background: #fff;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
}

JavaScript

amplify.request.define("twitter-search", "ajax", {
    url: "http://search.twitter.com/search.json",
    dataType: "jsonp",
    dataMap: {
        term: "q"
    }
});

$(document).ready(function() {

    (function($) {



        var viewModel;

        amplify.request("twitter-search", "q=html5&rpp=5", function(data) {
            viewModel = ko.mapping.fromJS(data);
            ko.applyBindings(viewModel);

        });

        $("#refresh").click(function() {
            amplify.request("twitter-search", "q=html5&rpp=5", function(data) {
                ko.mapping.fromJS(data, viewModel);

            });
        });






    })(jQuery);




});