JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css">
<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="http://beer2code.com/themes/core-admin/stylesheets/application.css">
<script src="http://beer2code.com/themes/core-admin/javascripts/application.js"></script>
<div class="container">
<div class="span6 offset3">
    <input type="checkbox" class="icheck" id="Checkbox1" name="userAccessNeeded"/>
    <label for="Checkbox1">Todos los Clientes</label>
</div>
    </div>

JavaScript

$('.Checkbox1').on('click',function(){
    alert('checked');
    $(this).iCheck('check');
});