Magento simple Hello World extension: Sample layout

hello.xml

<!--
/**
 * Magento simple Hello World extension: Sample layout
 *
 * Sample layout for the simple Hello World extension
 * provided for documentation purposes in the
 * Magento 1.x Extension Developer's Guide
 * 
 * @copyright Copyright (c) 2014 eBay Inc. (http://www.magentocommerce.com)
 */
-->
<?xml version="1.0"?>
<layout version="0.1.0">
    <default>

    </default>

    <hello_index_index>
        <reference name="content">
            <block before="-" type="hello/hello" name="hello" template="hello/hello.phtml" />
        </reference>
    </hello_index_index>

    <hello_index_hello>
        <reference name="content">
            <block before="-" type="hello/hello" name="hello" template="hello/hello.phtml" />
        </reference>
    </hello_index_hello>

    <customer_account_login>
        <reference name="content">
            <block before="-" type="hello/hello" name="hello" template="hello/hello.phtml" />
        </reference>
    </customer_account_login>

</layout>