eiru_sale_utility_tool/views/template.xml

<openerp>
    <data>
        <template id="eiru_sale_utility_tool.eiru_assets" name="eiru_sale_utility_tool_eiru_assets" inherit_id="eiru_assets.assets">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/eiru_sale_utility_tool/static/src/css/style.css"/>
                <!-- Sale -->
                <script type="text/javascript" src="/eiru_sale_utility_tool/static/src/js/eiru_utility_tool_sale.js" />
                <script type="text/javascript" src="/eiru_sale_utility_tool/static/src/js/eiru_payment_term_configurator_purchase.js" />

            </xpath>
        </template>
    </data>
</openerp>