After installation the installer tells me to add the script refs:

<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery.form/3.50/jquery.form.min.js"></script>

<script type="text/javascript" src="/App_Plugins/teacommerce/assets/scripts/tea-commerce.min.js"></script>

<script type="text/javascript">

  _storeId = [fetch the store id from Umbraco here];

</script>

What will that do for me? Is it for the backend, or the frontend? And when do I want to use it on the frontend? 

Thanks