<script src="http://code.jquery.com/jquery.min.js"></script>
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
<script src="dist/build/icon-selector.js"></script>
<link rel="stylesheet" href="dist/build/icon-selector.css">

<input type="text" class="icon-placeholder icon">
<button class="icon-selector">Select</button>

<script>
$(".icon-selector").iconSelector({input: '.icon'});
</script>