app/design/frontend/base/default/layout/mygento/yandexdelivery.xml
<?xml version="1.0"?>
<!--
/**
* Copyright © 2017 NKS LLC. (http://www.mygento.ru)
* License: GPLv2
* Package: Mygento_Yandexdelivery
*/
-->
<layout version="0.1.0">
<checkout_onepage_index>
<reference name="head">
<action method="addJs" ifconfig="carriers/yandexdelivery/jquery">
<script>jquery/jquery-2.1.4.min.js</script>
</action>
<action method="addJs" ifconfig="carriers/yandexdelivery/jquery">
<script>jquery/mygento/jquery.init.js</script>
</action>
<action method="addJs" ifconfig="carriers/yandexdelivery/jqueryui">
<script>jquery/jqueryui/jquery-ui.min.js</script>
</action>
<action method="addItem" ifconfig="carriers/yandexdelivery/jqueryui">
<type>js_css</type>
<name>jquery/jqueryui/jquery-ui.min.css</name>
</action>
<action method="addItem" ifconfig="carriers/yandexdelivery/json">
<type>skin_js</type>
<name>js/mygento/yandexdelivery.js</name>
</action>
<action method="addItem">
<type>skin_css</type>
<name>css/mygento/yandexdelivery.css</name>
</action>
<action method="addItem">
<type>skin_css</type>
<name>css/mygento/yandexdelivery_pvz.css</name>
</action>
<block type="core/template" name="yandexdeliverywidget" template="mygento/yandexdelivery/widget.phtml" />
</reference>
</checkout_onepage_index>
<checkout_onepage_additional>
<reference name="root">
<block type="yandexdelivery/shipping" output="toHtml" name="yandexdelivery_shiping" as="shipping" template="mygento/yandexdelivery/shipping.phtml" after='-'/>
</reference>
</checkout_onepage_additional>
<checkout_cart_index>
<reference name="head">
<block type="core/template" name="yandexdeliverywidget" template="mygento/yandexdelivery/widget.phtml" />
</reference>
</checkout_cart_index>
</layout>