Javascript Lazy Load Images

lazyload.html

<!-- markup -->
<img data-src="/image/to/lazy/load.jpg" src="" />

<script type="text/javascript">
  lazyLoad : function($images){
    $images.each(function(i, el){
      var $el = $(el);
      if (!el.loaded){
        $el.attr('src', $el.attr('data-src'));
        el.loaded=1;
      }
    });
  }
</script>