doit_easynfe.xml

<?xml version="1.0"?>
<layout>
    <adminhtml_system_config_edit>
         <reference name="head">
            <action method="addJs"><script>easynfe/nfe/nfe.js</script></action>
            <action method="addJs"><script>easynfe/nfe/initadminsys.js</script></action>
         </reference>
    </adminhtml_system_config_edit>
    <adminhtml_sales_order_address>
         <reference name="head">
            <action method="addJs"><script>easynfe/nfe/nfe.js</script></action>
            <action method="addJs"><script>easynfe/nfe/initfront.js</script></action>
         </reference>
    </adminhtml_sales_order_address>
    <adminhtml_sales_order_view>
        <reference name="order_info">
           <action method="setTemplate"><template>doit_easynfe/sales/order/view/info.phtml</template></action>
        </reference>
     </adminhtml_sales_order_view>
     
     <easynfe_adminhtml_easynfe_edit>
          <reference name="content">
            <block type="doit_easynfe/adminhtml_sales_order_edit" name="doit_easynfe_edit">
                <block type="doit_easynfe/adminhtml_sales_order_edit_form" name="form"></block>
            </block>
         </reference>
     </easynfe_adminhtml_easynfe_edit>
</layout>