Javascript Lazy Loading

js-lazy-loading.html

<script id="lazy">
// Make sure you strip out (or replace) comment blocks in your JavaScript first.
/* JavaScript of lazy module */
</script>
<script>
function lazyLoad() {
  var lazyElement = document.getElementById('lazy');
  var lazyElementBody = lazyElement.innerHTML;
  var jsCode = stripOutCommentBlock(lazyElementBody);
  eval(jsCode);
}
</script>

<div onclick=lazyLoad()>Lazy Load</div>