<openerp>
    <data>
       <template id="assets_backend" name="web_dialog_size assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/web_dialog_size/static/src/css/web_dialog_size.css"/>
                <script type="text/javascript" src="/web_dialog_size/static/src/js/web_dialog_size.js"></script>
            </xpath>
        </template>
    </data>
</openerp>