pos_select_cashier/templates/templates.xml

<?xml version="1.0" encoding="utf-8"?>

<openerp>
    <data>

        <template id="index" name="select_cashier_module_index index"
                  inherit_id="point_of_sale.index">
            <xpath expr="//link[@id='pos-stylesheet']" position="after">
                <link rel="stylesheet" href="/pos_select_cashier/static/src/css/pos.css"/>
            </xpath>

        </template>

      	<template id="assets_backend" name="select_cashier_module assets"
                  inherit_id="web.assets_backend">
            <xpath expr="//script[last()]" position="after">
            	<script type="text/javascript" src="/pos_select_cashier/static/src/js/db.js"></script>
                <script type="text/javascript" src="/pos_select_cashier/static/src/js/models.js"></script>
                <script type="text/javascript" src="/pos_select_cashier/static/src/js/screens.js"></script>
                <script type="text/javascript" src="/pos_select_cashier/static/src/js/widgets.js"></script>
            	<script type="text/javascript" src="/pos_select_cashier/static/src/js/main.js"></script>
            </xpath>
        </template>
    </data>
</openerp>